Consulta: subjectFacets:"Mexico"
Registros recuperados: 152
Data/hora: 01/06/2024 10:33:16

Inoculación de pinos de importancia forestal útiles en  restauración de áreas degradadas con hongos comestibles ectomicorrízicos
Provedor de dados: 32
Autores: Méndez Neri, Mónica.
Un criterio de selección  de los hongos ectomicorrízicos (ECM) a utilizarse para inocular  plantas en invernadero es su carácter de comestibilidad humana. El presente estudio  evaluó el  efecto de la inoculación con tres especies de hongos ECM (de los géneros Hebeloma, Laccaria  y Suillus) los cuales son ampliamente utilizadas como alimento y comercializadas en mercados  tradicionales mexicanos, solos o combinados, en el desarrollo de dos especies de pinos  mexicanos nativos (Pinus greggii y Pinus pseudostrobus). En condiciones de invernadero 240  días después de la siembra se determinó el diámetro del tallo, peso seco aéreo, radical y total de  las plantas, el porcentaje de colonización ECM, y se efectuó una caracterización morfológica de  los morfotipos...
Tipo: Tesis
Palavras-chave: Hongos ectomicorrízicos comestibles; Inoculación con píleos; Pinaceae; Colonización micorrízica; México; Maestría; Edafología; Edible ectomycorrhizal mushrooms; Inoculation with pilea; Pinaceae; Mycorrhizal colonization; Mexico.
Ano: 2007
URL: http://hdl.handle.net/10521/1488

Capital Humano y Social. Factores que determinan la viabilidad de las empresas de turismo rural en la Sierra Nororiente del Estado de Puebla. Caso Red de Turismo Alternativo (RETA) Totaltikpak, A.C.
Provedor de dados: 32
Autores: Pérez Serrano, Adriana Montserrat.
En la Sierra Nororiente del Estado de Puebla convergen una serie de elementos que la han colocado como una región de atención prioritaria; socialmente enfrenta agudos problemas de pobreza extrema y marginación, producto de un desarrollo histórico, donde la política agrícola y los bajos precios del café en los últimos años han jugado un importante papel. Asimismo, la riqueza que posee esta región se refleja en un mosaico de paisajes, tradiciones y etnias; recursos capaces de ser aprovechados para desarrollar actividades de turismo rural. El objetivo del estudio fue conocer el recurso turístico que es aprovechado por las siete empresas que integran la Red de Turismo Alternativo Totaltikpak, A.C., la cual opera en la Sierra Norte del Estado de Puebla; e...
Tipo: Tesis
Palavras-chave: Recursos turísticos; Turismo rural; Empleo no agrícola; Ingreso; Pobreza; Indígena; México Tourist resourses; Rural tourism; I not use agricultural; Income; Poverty; Indigenous; Mexico.
Ano: 2012
URL: http://hdl.handle.net/10521/1047

Atributos demográficos y biología reproductiva de Coryphantha cornifera y Stenocactus anfractuosus con fines de conservación.
Provedor de dados: 32
Autores: Fuentes Mayo, Vladimir.
Se estudió la distribución geográfica, asociación, densidad, supervivencia in situ y factores de riesgo para las poblaciones de Coryphantha cornifera y Stenocactus anfractuosus. La búsqueda de las especies se hizo mediante recorridos de campo en los estados de México, Hidalgo, Tlaxcala, Puebla y Querétaro. En los sitios donde se encontraron estas especies, se registraron las coordenadas geográficas y altitud. Se establecieron parcelas de 400 m2 donde se marcaron todos los individuos presentes; para cada uno se obtuvieron datos morfométricos y número de costillas o tubérculos; también se registró la ocupación del hábitat, el estado fenológico y la condición sanitaria. Las plantas fueron censadas cada tres meses. C. cornifera y S. anfractuosus se encontraron...
Palavras-chave: Distribución geográfica; Densidad; Riesgo; Cactáceas; Doctorado; Botánica; Globose cacti; Mexico; Reproductive traits; Mating systems; Doctorado; Botánica.
Ano: 2012
URL: http://hdl.handle.net/10521/734

Household Land Management and Biodiversity: Secondary Succession in a Forest-Agriculture Mosaic in Southern Mexico
Provedor de dados: 7
Autores: Roy Chowdhury, Rinku; University of Miami; rroychowdhury@miami.edu.
Tipo: Peer-Reviewed Reports
Palavras-chave: Biodiversity; Household decision making; Land allocation models; Mexico; Secondary forest.
Ano: 2007

Water Governance in Mexico: Political and Economic Aperatures and a Shifting State-Citizen Relationship
Provedor de dados: 7
Autores: Wilder, Margaret; University of Arizona; mwilder@email.arizona.edu.
Tipo: Peer-Reviewed Reports
Palavras-chave: Ejidos; Governance; Irrigation districts; Mexico; River basin councils; Sonora; Water policy.
Ano: 2010

Cultural or Ecological Sustainability? The Effect of Cultural Change on Sabal Palm Management Among the Lowland Maya of Mexico
Provedor de dados: 7
Autores: Martorell, Carlos; Universidad Nacional Autonoma de Mexico; martorel@miranda.ecologia.unam.mx; Caballero, Javier; Universidad Nacional Autonoma de Mexico; jcaballero@ibiologia.unam.mx.
Sabal palm has been used for thatching the traditional Maya house for over 3000 yr. The great importance of this resource has promoted its management within home gardens. Although traditionally managed populations in home gardens are capable of ecological long-term persistence, the impact of cultural change on sustainable resource management is poorly understood. By means of interviews in 108 households, we obtained information about Sabal management practices, leaf demand, and sociocultural data. Density and size structure of the palm populations in the respective home gardens were also measured. By means of principal components analysis, the sociocultural data were summarized into a cultural change index, which was then statistically related to palm...
Tipo: Peer-Reviewed Reports
Palavras-chave: Cultural change; Ethnoecology; Maya; Mexico; Sabal; Traditional management.
Ano: 2006

Applying Retrospective Demographic Models to Assess Sustainable Use: the Maya Management of Xa&amp;#8217;an Palms
Provedor de dados: 7
Xa&amp;#8217;an palm (Sabal yapa) has been used to thatch traditional Maya houses for over 3000 years. In the Yucatan Peninsula, this palm has been introduced to pasturelands, maize fields (milpas), and homegardens. These and other traditional management systems are usually believed to be sustainable, but there is as yet little evidence to support this hypothesis. Demographic models have been used for this purpose, mainly focusing on population growth rate (&amp;#955;). So far, retrospective analysis has not been applied, even though it examines how changes in the  the life cycle of a species, caused by different management regimes, affect its &amp;#955;. In this study, we assess whether ecologically sustainable use of xa&amp;#8217;an occurs in...
Tipo: Peer-Reviewed Reports
Palavras-chave: Ethnoecology; LTRE; Mexico; NTFP; Sabal yapa; Traditional management; Xa&amp;#8217an palm; Yucatan.
Ano: 2005

When death approaches: reverting or exploiting emergent inequity in a complex land-use table-board game
Provedor de dados: 7
Autores: Smith, James A.; El Colegio de la Frontera Sur, Mexico ; nitac14b@yahoo.com.
The lives of poor landowners in tropical mountains depend upon their collective capacity to create and coordinate social preferences derived from their interacting communalistic, hierarchical, and reciprocal exchanges. External actors currently contend for these territories under market rules that are modifying such preferences. We present the design, experimental implementation, and analysis of results of a four-player, land-use board game with stark resource and livelihood limits and coordination/cooperation challenges, as played (separately) by 116 farmers and 108 academics, mainly in the tropical mountains of Chiapas, Mexico. In game session one, we trained and framed players in moral economy, a human core feeling and communalistic norm of solidarity...
Tipo: Peer-Reviewed Reports
Palavras-chave: Inequity; Mexico; Payments for ecosystem services; Role-playing games; Rural land use  social-ecological experiments; Social preferences; Tropical mountains.
Ano: 2015

Building ties: social capital network analysis of a forest community in a biosphere reserve in Chiapas, Mexico
Provedor de dados: 7
Autores: Dahringer, Guillaume; Pronatura-Sur A.C.; dahringer@pronatura-sur.org; Reyes, Felipe; Universidad de Ciencias y Artes de Chiapas; felipe.reyes@unicach.mx.
Tipo: Peer-Reviewed Reports
Palavras-chave: Collective action; Community forest management; Ejido; Mexico; Social capital; Social network analysis.
Ano: 2012

Biological and Ecological Mechanisms Supporting Marine Self-Governance: the Seri Callo de Hacha Fishery in Mexico
Provedor de dados: 7
Autores: Basurto, Xavier; Indiana University; Duke University; Comunidad y Biodiversidad AC; xbasurto@indiana.edu.
My goal was to describe how biological and ecological factors give shape to fishing practices that can contribute to the successful self-governance of a small-scale fishing system in the Gulf of California, Mexico. The analysis was based on a comparison of the main ecological and biological indicators that fishers claim to use to govern their day-to-day decision making about fishing and data collected in situ. I found that certain indicators allow fishers to learn about differences and characteristics of the resource system and its units. Fishers use such information to guide their day-to-day fishing decisions. More importantly, these decisions appear unable to shape the reproductive viability of the fishery because no indicators were correlated to the...
Tipo: Peer-Reviewed Reports
Palavras-chave: Atrina tuberculosa; Callo de hacha; Common-pool resources; Diving fisheries; Gulf of California; Mexico; Pen shells; Pinna rugosa; Resilience; Scallop; Seri; Small-scale fisheries; Social-ecological systems.
Ano: 2008

Delivering the Goods: Scaling out Results of Natural Resource Management Research
Provedor de dados: 7
Autores: Harrington, Larry; International Maize and Wheat Improvement Center (CIMMYT); l.harrington@cgiar.org; White, Jeffrey; ; j.white@cgiar.org; Grace, Peter; Sinclair Knight Merz, Brisbane, Australia; pgrace@skm.com.au; Hodson, David; ; d.hodson@cgiar.org; Hartkamp, Agnes Dewi; Product Organisation Grains, Seeds and Pulses, The Hague, Netherlands; d.hartkamp@wisint.org; Vaughan, Christopher; CO MET Directorate of Environmental Affairs, Namibia; kit@africaonline.com.na; Meisner, Craig; ; cmeisner@bttb.net.bd.
To help integrated natural resource management (INRM) research "deliver the goods" for many of the world's poor over a large area and in a timely manner, the authors suggest a problem-solving approach that facilitates the scaling out of relevant agricultural practices. They propose seven ways to foster scaling out: (1) develop more attractive practices and technologies through participatory research (2) balance supply-driven approaches with resource user demands, (3) use feedback to redefine the research agenda, (4) encourage support groups and networks for information sharing, (5) facilitate negotiation among stakeholders, (6) inform policy change and institutional development, and (7) make sensible use of information management tools, including models...
Tipo: Peer-Reviewed Reports
Palavras-chave: Mexico; South Asia; Southern Africa; Conservation tillage; Diffusion of research; Environments; Geographic information systems; Natural resource management; Participatory research; Scaling out; Simulation models; Technology transfer.
Ano: 2001

Ecosystem service trade-offs, perceived drivers, and sustainability in contrasting agroecosystems in central Mexico
Provedor de dados: 7
The ability of agroecosystems to provide food ultimately depends on the regulating and supporting ecosystem services that underpin their functioning, such as the regulation of soil quality, water quality, soil erosion, pests, and pollinators. However, there are trade-offs between provisioning and regulating or supporting services, whose nature at the farm and plot scales is poorly understood. We analyzed data at the farm level for two agroecosystems with contrasting objectives in central Mexico: one aimed at staple crop production for self-subsistence and local markets, the other directed to a cash crop for export markets. Bivariate and multivariate trade-offs were analyzed for different crop management strategies (conventional, organic, traditional, crop...
Tipo: Peer-Reviewed Reports
Palavras-chave: Agroecosystems; Avocado; Ecosystem services; Maize; Mexico; Trade-offs.
Ano: 2015

The Multiple Use of Tropical Forests by Indigenous Peoples in Mexico: a Case of Adaptive Management
Provedor de dados: 7
Autores: Moguel, Patricia; ;.
The quest for an appropriate system of management for tropical ecosystems necessitates that ecologists consider the accumulated experiences of indigenous peoples in their long-term  management of local resources, a subject of current ethnoecology. This paper provides data and empirical evidence of an indigenous multiple-use strategy (MUS) of tropical forest management existing in Mexico, that can be considered a case of adaptive management. This conclusion is based on the observation that some indigenous communities avoid common modernization routes toward specialized, unsustainable, and ecologically disruptive systems of production, and yet probably achieve the most successful tropical forest utilization design, in terms of biodiversity conservation,...
Tipo: Peer-Reviewed Reports
Palavras-chave: Adaptive management; Ethnoecology; Indigenous peoples; Mexico; Multiple use; Tropical rain forest.
Ano: 2003

Local perceptions on social-ecological dynamics in Latin America in three community-based natural resource management systems
Provedor de dados: 7
Several examples of community-based natural resource management in Latin American social-ecological systems exist in which communities control the management of common-pool resources. Understanding community perceptions of the performance of these systems is essential to involve communities in sustainable management strategies. In this analysis of three areas in Colombia, Mexico, and Argentina, we analyzed the local perceptions of the social and environmental challenges faced by these social-ecological systems and how these challenges and drivers affect their resilience. To do this, we combined prospective structural analysis to unravel stakeholders&amp;#8217; perceptions of each system&amp;#8217;s functioning along with network analysis to assess...
Tipo: Peer-Reviewed Reports
Palavras-chave: Argentina; Colombia; Common-pool resources; Environmental challenges; Governance; Mexico; Network analysis; Ostrom; Prospective structural analysis; Social-ecological resilience.
Ano: 2015

From Resilience to Transformation:  the Adaptive Cycle in Two Mexican Urban Centers
Provedor de dados: 7
Autores: Pelling, Mark; King's College London; mark.pelling@kcl.ac.uk; Manuel-Navarrete, David; King's College London; david.manuel_navarrete@kcl.ac.uk.
Tipo: Peer-Reviewed Reports
Palavras-chave: Adaptive cycle; Climate change; Disaster management; Mexico; Power; Resilience; Transformation.
Ano: 2011

Can scenario-planning support community-based natural resource management?  Experiences from three countries in Latin America
Provedor de dados: 7
Autores: Waylen, Kerry A; Social, Economic and Geographical Sciences Group, The James Hutton Institute; kerry.waylen@hutton.ac.uk; Martin-Ortega, Julia; Social, Economic and Geographical Sciences Group, The James Hutton Institute; Sustainability Research Institute, School of Earth and the Environment and water@leeds, University of Leeds; J.MartinOrtega@leeds.ac.uk; Blackstock, Kirsty L; Social, Economic and Geographical Sciences Group, The James Hutton Institute; kirsty.blackstock@hutton.ac.uk; Brown, Iain; Information and Computational Sciences Group, The James Hutton Institute; iain.brown@hutton.ac.uk; Escalante Semerena, Roberto Ivan; Faculty of Economics, National Autonomous University of Mexico (UNAM); semerena@unam.mx; Farah Quijano, Maria Adelaida; Pontificia Universidad Javeriana-Faculty of Environmental and Rural Studies; mafarahq@gmail.com; Ortiz-Guerrero, Cesar E.; Pontificia Universidad Javeriana; c.ortiz@javeriana.edu.co.
Community-based natural resource management (CBNRM) is a concept critical to managing social-ecological systems but whose implementation needs strengthening. Scenario planning is one approach that may offer benefits relevant to CBNRM but whose potential is not yet well understood. Therefore, we designed, trialed, and evaluated a scenario-planning method intended to support CBNRM in three cases, located in Colombia, Mexico, and Argentina. Implementing scenario planning was judged as worthwhile in all three cases, although aspects of it were challenging to facilitate. The benefits generated were relevant to strengthening CBNRM: encouraging the participation of local people and using their knowledge, enhanced consideration of and adaptation to future change,...
Tipo: Peer-Reviewed Reports
Palavras-chave: Argentina; Climate change; Colombia; Community-based conservation; Futures thinking; Mexico; Participation; Scenario methods; Wicked problems.
Ano: 2015

Why Shade Coffee Does Not Guarantee Biodiversity Conservation.
Provedor de dados: 7
Autores: Silva-Rivera, Evodia; Centro de Investigaciones Tropicales, Universidad Veracruzana; evsilva@uv.mx; Sutherland, William J; Department of Zoology, University of Cambridge; w.sutherland@zoo.cam.ac.uk.
Over the past decade, various strategies have emerged to address critical habitat losses through agricultural expansion. The promotion of shade-grown, premium-priced coffee has been highlighted as one alternative. Our research, based on interviews with farmers in Chiapas, disputes some of the assumptions made by shade coffee campaigners. Results revealed a predisposition to converting forest to shade coffee production due to the socioeconomic challenges farmers face and the potential for increasing incomes. To ensure that their well-being is improved at the same time as reducing environmental impacts, there is clearly a need to provide more detailed information on who is responsible for enforcing certification criteria and how this should take place.
Tipo: Peer-Reviewed Insight
Palavras-chave: Alternative coffee; Conservation; Biodiversity; Mexico.
Ano: 2010

Remote Sensing and Ethnobotanical Assessment of the Mangrove Forest Changes in the Navachiste-San Ignacio-Macapule Lagoon Complex, Sinaloa, Mexico
Provedor de dados: 7
Autores: Koedam, Nico; Vrije Universiteit Brussel; nikoedam@vub.ac.be; Ruiz Luna, Arturo; CIAD-Mazatlan; arluna@victoria.ciad.mx; Troell, Max; Beijer Institute; max@beijer.kva.se; Dahdouh-Guebas, Farid; Vrije Universiteit Brussel; fdahdouh@vub.ac.be.
The present study focuses on the Navachiste-San Ignacio-Macapule lagoon complex in northwest Mexico and evaluates the spatiotemporal change in the mangrove area over the last three decades using Landsat MSS and TM imagery. Local ethnobotanical uses of the mangrove forest and local perceptions about the status and recent development of the mangrove forest cover are also analyzed. The results of interviews with 54 inhabitants of four fishing villages in the study area indicated that, overall, Laguncularia racemosa is the most frequently used species in this region of the Mexican Pacific coast, where it serves as firewood and a construction material, particularly for walls and fences. The next-ranked species were Avicennia germinans, which is used for tea,...
Tipo: Peer-Reviewed Reports
Palavras-chave: Mangrove; Ethnobiology; Remote sensing; Time series; Thematic Mapper; Multi-Spectral Scanner; Mexico.
Ano: 2005

Biodiversity and Modernization in Four Coffee-producing Villages of Mexico
Provedor de dados: 7
Autores: Potvin, Catherine; McGill University; catherine.potvin@mcgill.ca; Owen, Claire T; ;; Melzi, Said; ; melzi1@progression.net.
Tipo: Peer-Reviewed Reports
Palavras-chave: Coffee farming; Ecological and socioeconomic variables; Ecological statistics; Mexico; Modernization; Plant richness; Traditional coffee garden.
Ano: 2005

Shorter Fallow Cycles Affect the Availability of Noncrop Plant Resources in a Shifting Cultivation System
Provedor de dados: 7
Autores: Dalle, Sarah Paule; Department of Plant Science, Macdonald Campus of McGill University; sarah.dalle@mail.mcgill.ca; de Blois, Sylvie; Department of Plant Science and McGill School of Environment, McGill University; sylvie.deblois@mcgill.ca.
Shifting cultivation systems, one of the most widely distributed forms of agriculture in the tropics, provide not only crops of cultural significance, but also medicinal, edible, ritual, fuel, and forage resources, which contribute to the livelihoods, health, and cultural identity of local people. In many regions across the globe, shifting cultivation systems are undergoing important changes, one of the most pervasive being a shortening of the fallow cycle. Although there has been much attention drawn to declines in crop yields in conjunction with reductions in fallow times, little if any research has focused on the dynamics of noncrop plant resources.   In this paper, we use a data set of 26 fields of the same age, i.e., ~1.5 yr, but differing in the...
Tipo: Peer-Reviewed Reports
Palavras-chave: Agricultural intensification; Ethnobotany; Fuelwood; Land-use change; Mexico; Milpa; Quintana Roo; Resource scarcity; Slash-and-burn; Swidden agriculture; Tropical succession; Wild plant resources; Yucatec Maya.
Ano: 2006

Tropical Deforestation, Community Forests, and Protected Areas in the Maya Forest
Provedor de dados: 7
Autores: Bray, David Barton; Florida International University; brayd@fiu.edu; Duran, Elvira; Centro Interdisciplinario de Investigacion para el Desarrollo Integral Regional, Unidad Oaxaca; eduran3@hotmail.com; Ramos, Victor Hugo; Wildlife Conservation Society-Guatemala; vhramos@wcs.org; Mas, Jean-Francois; Universidad Autonoma de Mexico; jfmas@ciga.unam.mx; Velazquez, Alejandro; Universidad Autonoma de Mexico; avmontes@ciga.unam.mx; McNab, Roan Balas; Wildlife Conservation Society-Guatemala; mcnab@wcs.org; Barry, Deborah; Center for International Forestry Research; dbarry@cgiar.org; Radachowsky, Jeremy; University of Florida; radachowsky@hotmail.com.
Community forests and protected areas have each been proposed as strategies to stop deforestation. These management strategies should be regarded as hypotheses to be evaluated for their effectiveness in particular places. We evaluated the community-forestry hypothesis and the protected-area hypothesis in community forests with commercial timber production and strict protected areas in the Maya Forest of Guatemala and Mexico. From land-use and land cover change (LUCC) maps derived from satellite images, we compared deforestation in 19 community forests and 11 protected areas in both countries in varying periods from 1988 to 2005. Deforestation rates were higher in protected areas than in community forests, but the differences were not significant. An...
Tipo: Peer-Reviewed Reports
Palavras-chave: Community forest management; Guatemala; Land-use and land cover change analysis; Logging; Mexico; Protected areas.
Ano: 2008

Adapting prospective structural analysis to strengthen sustainable management and capacity building in community-based natural resource management contexts
Provedor de dados: 7
Local communities collectively managing common pool resources can play an important role in sustainable management, but they often lack the skills and context-specific tools required for such management. The complex dynamics of social-ecological systems (SES), the need for management capacities, and communities&amp;#8217; limited empowerment and participation skills present challenges for community-based natural resource management (CBNRM) strategies. We analyzed the applicability of prospective structural analysis (PSA), a strategic foresight tool, to support decision making and to foster sustainable management and capacity building in CBNRM contexts and the modifications necessary to use the tool in such contexts. By testing PSA in three SES in Colombia,...
Tipo: Peer-Reviewed Reports
Palavras-chave: Argentina; Colombia; Latin America; Local knowledge; Mexico; Participatory techniques; Social-ecological systems; Strategic foresight.
Ano: 2016

Biochemical diagnosis of mucopolysaccharidosis in a Mexican reference center
Provedor de dados: 74
Autores: Mendoza-Ruvalcaba,Sandra del Carmen; Brambila-Tapia,Aniel Jessica Leticia; Juárez-Osuna,Jesús Alejandro; Silva-José,Thiago Donizete Da; García-Ortiz,José Elías.
Abstract Mucopolysaccharidoses (MPS) are a group of genetic disorders, each resulting from the deficiency of one of the lysosomal enzymes that catabolizes mucopolysaccharides. For the accurate diagnosis of the disease, the quantification of a specific enzymatic activity is needed. In the present study, we analyzed seven MPS over several periods of time ranging from 2 to 5 years in a reference center in Mexico. During this time, a total of 761 samples belonging to 505 individuals with suspected MPS were analyzed. A total of 198 (26.01%) positive results were found. Among these, MPS IVA accounted for the highest frequency of positive results (49.10%), followed by MPS III (17.69%, IIIA: 11.80% and IIIB: 5.89%). Adjusting for the number of births per year, the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mucopolysaccharidoses; Leukocyte enzymatic activity; Fluorometric assay; Mexico.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000100106

Complementary description of Neanopidium mexicanum (Coleoptera: Tenebrionidae: Anopidiina)
Provedor de dados: 76
Autores: Aloquio,Sergio; Lopes-Andrade,Cristiano.
ABSTRACT A complementary description for Neanopidium mexicanum Dajoz, 1975, type species of the genus, is provided based on specimens from the type locality Valle Nacional (Oaxaca, Mexico), including description and illustrations of male and female abdominal terminalia, which is provided for the first time to a Neanopidium species.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Abdominal terminalia; Diaperinae; Gnathidiini; Mexico.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212019000100202

Relatório de viagem.
Provedor de dados: 14
Autores: MORAES, G. J. de.
Programa de treinamento realizado; Condições em que participou; reuniões de que participou no congresso.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Relatório de viagem; Evento; Participação; Entomologia; Controle Biológico; Mexico.
Ano: 1979
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/156447

Relatório de viagem aos Estados Unidos e ao México.
Provedor de dados: 14
Autores: AGUIAR FILHO, S. P. de.
bitstream/item/142611/1/ID-31935.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Viagem; Relatório; Estados Unidos; Cultivo.; Mexico; Guayule.
Ano: 1984
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/156023

Relatório técnico de treinamento em salinidade, drenagem e participação na 10. Reunião da Associaçao Latinoamericana de Ciências Agrícolas,
Provedor de dados: 14
Autores: CORDEIRO, G. G.
O treinamento em Salinidade e Drenagem visou particularmente uma avaliação das metodologias de pesquisa adotadas na recuperação de solos afetados por sais, que vem sendo desenvolvidos pelo CPATSA/EMBRAPA Brasil e pela SARH/MÉXICO, visando ainda uma possível transferência de metodologia de pesquisa entre as duas instituições.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Relatório de viagem; Metodologia de pesquisa; Relatório.; Drenagem; Salinidade.; Mexico; Drainage; Salinity.
Ano: 1979
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/156081

Multibeam bathymetry and sidescan imaging of the Rivera Transform-Moctezuma spreading segment junction, northern East Pacific Rise: New constraints on Rivera-Pacific relative plate motion
Provedor de dados: 5
Autores: Bandy, W; Michaud, F; Dyment, Jerome; Mortera Gutierrez, C; Bourgois, J; Calmus, T; Sosson, M; Ortega Ramirez, J; Royer, J; Pontoise, B; Sichler, Bertrand.
To better understand the recent motion of the Pacific plate relative to the Rivera plate and to better define the limitations of the existing Rivera-Pacific plate motion models for accurately predicting this motion, total-field magnetic data, multibeam bathymetric data and sidescan sonar images were collected during the BART and FAMEX campaigns of the N/O L'Atalante conducted in April and May 2002 in the area surrounding the Moctezuma Spreading Segment of the East Pacific Rise, located offshore of Manzanillo, Mexico, at 106 degrees 16'W, between 17.8 degrees N and 18.5 degrees N. Among the main results are: (1) the principle transform displacement zone of the Rivera Transform is narrow and well defined east of 107 degrees 15'W and these azimuths should be...
Tipo: Text
Palavras-chave: Plate motions; Plate boundary morphology; Mexico; Rivera plate; Rivera Transform; East Pacific Rise.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-4486.pdf

Pelvimetry by Reformatted Computed Tomography in 290 Female Pelvis: Morphometric Variations Regarding Age
Provedor de dados: 77
Autores: Vázquez-Barragán,Miguel Ángel; Garza-Báez,Azalea; Morales-Avalos,Rodolfo; Martínez-González,Brenda; Jacobo-Baca,Guillermo; Pinales-Razo,Ricardo; Quiroga-Garza,Alejandro; de la Fuente-Villarreal,David; Elizondo-Riojas,Guillermo; Elizondo-Omaña,Rodrigo E; Guzmán-López,Santos.
The Mexican government passed a new reform of article 11 of the General Law in 2014 regarding Women's Access to a Life Free of Violence, which states that a cesarean section may not be performed if a vaginal birth is viable. Cesarean sections are excessively indicated in Northen Mexico, using the diagnosis of cephalopelvic disproportion due to a narrow pelvis. Currently, there is no standardized morphometry of the female pelvis in a Mexican population to establish adequate diagnostic parameter. Our study measures the pelvic diameters of the birth canal using abdominopelvic computed tomography (CT). Two hundred and ninety CT from Mexican women between the ages of 18 and 50 were collected and 3D reformatted in order to morphologically measure the pelvic...
Tipo: Journal article
Palavras-chave: Pelvimetry; Cesarean; Cephalopelvic disproportion; Reformatted CT; Morphometry; Mexico.
Ano: 2016
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000100043

American trypanosomiasis and associated risk factors in owned dogs from the major city of Yucatan, Mexico
Provedor de dados: 80
Autores: Jiménez-Coello,Matilde; Acosta-Viana,Karla; Guzmán-Marín,Eugenia; Bárcenas-Irabién,Alejandra; Ortega-Pacheco,Antonio.
AbstractBackground The American trypanosomiasis is a zoonosis caused by the protozoaTrypanosoma cruzi (T. cruzi). The disease is widely distributed throughout the American continent, affecting a wide range of hosts, including dogs. It is present in the canine population in the State of Yucatan, Mexico. However, no significant studies in owned dogs have been performed in the metropolitan area of Merida. A transversal study was conducted in 370 owned dogs from Merida, Yucatan, Mexico.Methods A cross-sectional study including 370 dogs was performed in a major city of Yucatan, Mexico, to detect IgG antibodies against T. cruzi. A commercial ELISA test kit was used and a chi-square test used to evaluate associated risk factors; odds ratio (OR) and 95 %...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Trypanosoma cruzi; Epidemiology; Owned dogs; Major city; Mexico.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992015000100343

Food habits of pumas (Puma concolor) in a semiarid region of central Mexico
Provedor de dados: 81
Autores: de la Torre,J. Antonio; de la Riva,Gilfredo.
The puma's diet in a semi-arid region of central Mexico was determined by scat analyses. The study was conducted at two sites in the state of Aguascalientes: the Natural Protected Area of Sierra Fría and the El Muerto and Laurel ranges. Fifty-five prey items were found in thirty-eight scat samples. The white-tailed deer was the main prey item, followed by the collared peccary and raccoon. Livestock was an important prey item in terms of biomass, with a greater incidence of livestock remains in the scats from the El Muerto and Laurel ranges, possibly due to a reduced native prey base caused by human activities.
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Aguascalientes; Cougar; Diet; Mexico.
Ano: 2009
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832009000100018

Early Cretaceous arthropods from plattenkalk facies in Mexico
Provedor de dados: 16
Autores: Vega, Francisco J.; Garcia-Barrera, P.; Coutiño, M.; Nyborg, T.; Cifuentes-Ruiz, P.; González-Rodríguez, K.; Martens, A.; Delgado, C.R.; Carbot, G.
Several well-preserved arthropod faunas have been studied in Mexico during the past few years. The purpose of the present note is to outline advances in the study of these arthropods and of their paleoenvironmental implications, from four localities. The age for these localities ranges from the Early to the Late Cretaceous. At most of these localities lithographic limestones crop out, with fish remains representing the most attractive element of study. However, arthropods constitute a very important tool for reconstructing paleoenvironment (marine crustaceans, freshwater and terrestrial insects and arachnids). Detailed studies of these assemblages will aid in our understanding of ancient coastal dynamics and the paleoecology of these unique environments.
Tipo: Article / Letter to the editor
Palavras-chave: Cretaceous; Plattenkalk; Arthropoda; Mexico.
Ano: 2003
URL: http://www.repository.naturalis.nl/record/534392

Late Cretaceous dwarf decapods from Guerrero, southern Mexico and their migration patterns
Provedor de dados: 16
Autores: Fraaije, R.H.B.; Vega, F.J.; Bakel, B.W.M. van; Garibay-Romero, L.M.
Two new brachyuran species are described for the Upper Cretaceous Mexcala Formation, Guerrero State, Mexico. Longusorbis quadratus new species (Coniacian, Temalac region) is the oldest and southernmost record for the genus. Xanthosia zoquiapensis new species (Campanian, Zoquiapa region) is the first record for the genus in Mexico. In addition, the age for Costacopluma bishopi Vega and Feldmann is discussed (Coniacian, Temalac region) and represents the oldest and southernmost record for Cretaceous representatives of this genus in North America. All specimens are considerably smaller compared to other species of the same genera and are interpreted as the first example of brachyuran dwarfism in the geological record. These species add new insight into...
Tipo: Article / Letter to the editor
Palavras-chave: Dwarfism; Decapoda; Cretaceous; New species; Mexico; 38.22; 42.74.
Ano: 2006
URL: http://www.repository.naturalis.nl/record/214533

New taxa of the subfamily Doryctinae Foerster (Hymenoptera: Braconidae) from French Guiana and Brazil
Provedor de dados: 16
Autores: Braet, Y.; Achterberg, C. van.
Three genera of the subfamily Doryctinae Foerster, 1862 (Hymenoptera: Braconidae) are treated and keyed: Ptesimogaster Marsh, 1965, Caingangia Marsh, 1993, and Leptodoryctes Barbalho &amp; Penteado- Dias, 1999. The latter genus is characterised by the presence of an apical setal comb on the hind tibia. Two new genera are described: Ptesimogastroides gen. nov. (type species: P. cerdai spec. nov. from French Guiana and Brazil) and Dicarinoryctes gen. nov. (type species: D. apicalis spec. nov. from French Guiana). A further three new species are described: Caingangia delicata spec. nov. from French Guiana, Leptodoryctes barbalhoae spec. nov. from French Guiana, and Ptesimogaster lemkoi spec. nov. from Brazil. Pseudorhoptrocentrus platyfemur (Marsh, 1993) is a...
Tipo: Article / Letter to the editor
Palavras-chave: Braconidae; Doryctinae; Caingangia; Leptodoryctes; Heterospathius; Ptesimogaster; Dicarinoryctes; Ptesimogastroides; Pseudorhoptrocentrus; Curtisella; New species; New genus; Neotropical; French Guiana; Brazil; U.S.A.; Mexico; Distribution; Keys; 42.75.
Ano: 2001
URL: http://www.repository.naturalis.nl/record/217438

A new, Neotropical species of Acanthocyclops (Copepoda: Cyclopoida: Cyclopidae)
Provedor de dados: 16
Autores: Reid, Janet W.; Suárez-Morales, Eduardo.
Acanthocyclops smithae, a new species of cyclopoid copepod and a member of the A. vernalis-robustus group, is described from Honduras and southeastern Mexico. The few previous records of species of Acanthocyclops in tropical latitudes apparently refer to isolated populations of a few widespread temperate species. Acanthocyclops smithae is the only known exclusively tropical member of the genus.
Tipo: Article / Letter to the editor
Palavras-chave: Acanthocyclops; Copepoda; Cyclopoida; Taxonomy; Honduras; Mexico; Neotropics.
Ano: 1999
URL: http://www.repository.naturalis.nl/record/504895

Revisionary notes on Bentonia van Achterberg, 1992 (Hymenoptera: Braconidae: Orgilinae) with description of two new species
Provedor de dados: 16
Autores: Braet, Y.; Tignon, M.
Two new species of the genus Bentonia van Achterberg, 1992 (Braconidae: Orgilinae) (B. inca from Peru and B. xochiquetzalis from Mexico) are described and partly illustrated. A third undescribed species was found for which some characters are listed. The distribution of B. scutellaris van Achterberg, 1992, is extended west to Peru and B. longicornis van Achterberg, 1992, north to Venezuela. An identification key is added.
Tipo: Article / Letter to the editor
Palavras-chave: Braconidae; Orgilinae; Bentonia; Peru; Mexico; Venezuela; Key; 42.75.
Ano: 1998
URL: http://www.repository.naturalis.nl/record/215075

New hypogean cyclopoid copepods (Crustacea) from the Yucatán Peninsula, Mexico
Provedor de dados: 16
Autores: Fiers, Frank; Reid, Janet W.; Iliffe, Thomas M.; Suárez-Morales, Eduardo.
Four previously unknown hypogean species of cyclopoid copepods were collected in cenotes and wells of the Yucatán Peninsula, Mexico. Diacyclops chakan sp. n. and D. puuc sp. n. differ from their congeners in combining 3-segmented swimming legs, 11-segmented antennules, and legs 1-4 endopodite segment 2 all with 2 setae. Species of Diacyclops rarely occur in tropical regions, and the Diacyclops described here are only the second and third species recorded from Mexico. The benthic D. puuc was found in the large underground reservoir of a cenote. Diacyclops chakan was encountered in such large open subterranean water basins, but more frequently and abundantly in wells. The two Mesocyclops species, M. chaci sp. n. and M. yutsil sp. n., most closely resemble...
Tipo: Article / Letter to the editor
Palavras-chave: Diacyclops; Mesocyclops; Copepoda; Cyclopoida; Biogeography; Evolution; Hypogean; Karst; Species-flock; Taxonomy; Mexico.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/504240

Circumscription and nomenclature of Hiraea barclayana, H. reclinata, and H. ternifolia (Malpighiaceae), and of seven species misassigned to them
Provedor de dados: 16
Autores: Anderson, C.
A review of collections from Mexico to northern South America that had been primarily determined as H. barclayana, H. reclinata, and H. ternifolia, or synonyms, showed them to include ten species. Misinterpretations were caused by superficial morphological similarities and traditional nomenclatural errors. The species now recognized include six previously described: H. barclayana, H. hookeriana (formerly included in H. reclinata), H. reclinata, H. sanctae-marthae, H. ternifolia, and H. transiens. Four new species are proposed: H. mcvaughii, H. silvicola, and H. venezuelana; H. trianae was previously recognized at varietal level and is elevated to species. A neotype is chosen for H. reclinata. Lectotypes are designated for H. velutina (= H. barclayana) and...
Tipo: Article / Letter to the editor
Palavras-chave: Central America; Colombia; Hiraea; Malpighiaceae; Mexico; Venezuela.
Ano: 2016
URL: http://www.repository.naturalis.nl/record/613731

The Dakoticancridae (Decapoda, Brachyura) from the Late Cretaceous of North America and Mexico
Provedor de dados: 16
Autores: Bishop, G.A.; Feldmann, R.M.; Vega, F.
The podotrematous crab family Dakoticancridae includes four genera: Dakoticancer Rathbun, Tetracarcinus Weller, Avitelmessus Rathbun, and Seorsus Bishop, all known solely from the Late Cretaceous of North America. Lathelicocarcinus Bishop, originally referred to the family, must be reassigned. Fine details of anatomy, preserved on specimens of D. overanus Rathbun and A. grapsoideus Rathbun, permit description of genital openings and interpretation of functional morphology of appendages. Although one species, D. australis Rathbun, has been found associated with burrow structures, all were probably vagrant epifaunal animals on fine- to medium-grained siliciclastic substrata. Food was probably obtained by generalized low-level predation and scavenging....
Tipo: Article / Letter to the editor
Palavras-chave: Dakoticancridae; Brachyura; Paleobiology; Paleobiogeography; Late Cretaceous; North America; Mexico; Taxonomy; Cladistics.
Ano: 1998
URL: http://www.repository.naturalis.nl/record/534324

Re-description of Phymactis papillosa (Lesson, 1830) and Phymanthea pluvia (Drayton in Dana, 1846) (Cnidaria: Anthozoa), two common actiniid sea anemones from the south east Pacific with a discussion of related genera
Provedor de dados: 16
Autores: Häussermann, V.
Actiniid sea anemones possess few characteristics of taxonomic value, which makes columnar outgrowths one of the most important features for systematic work. There are two species of actiniid sea anemones known from Chile and southern Peru that exhibit a column densely covered with non-adhesive vesicles: Phymactis papillosa (Lesson, 1830) (= Phymactis clematis) and Phymanthea pluvia (Drayton in Dana, 1846). Hereby both are re-described in detail. The re-descriptions are based on observations of about 100 living animals in their habitat and in aquaria and on the examination of 21 specimens of P. papillosa and seven specimens of P. pluvia collected in Chile between 1995 and 2003. In Chile, specimens of both species occur in tide-pools, on vertical and...
Tipo: Article / Letter to the editor
Palavras-chave: Actiniaria; Actiniidae; Phymactis papillosa; Phymactis clematis; Phymanthea pluvia; Bunodosoma; Non-adhesive vesicles; Chile; Peru; Mexico; Benthos; 42.79.
Ano: 2004
URL: http://www.repository.naturalis.nl/record/214449

Species or population? Systematic status of Vieja coatlicue (Teleostei: Cichlidae)
Provedor de dados: 83
Autores: McMahan,Caleb D.; Matamoros,Wilfredo A.; Elías,Diego J.; Piller,Kyle R.
ABSTRACT Pacific and Atlantic-slope rivers of the Isthmus of Tehuantepec in Mexico contain two cichlid species of the genus Vieja relevant to the current study, V. zonata and V. coatlicue, respectively. The Atlantic-slope species was initially considered a population of uncertain taxonomic status and recently described as a distinct species based on three putatively diagnostic morphological characters. The objective of this study was to combine new and existing genetic data, along with reanalysis of morphological characters, to test the distinctiveness of V. coatlicue. Little genetic variability and no geographic structuring were recovered. Additionally, putatively diagnostic morphological character states were present across both species, failing to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cichlid; Freshwater; Mexico; River; Taxonomy.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252019000200204

Spatial patterns of diversity at local and regional scales in a tropical lagoon
Provedor de dados: 83
Autores: Caballero-Vázquez,José Adán; Vega-Cendejas,María Eugenia.
The present study reports estimates of alpha (α), beta (β) and gamma (Γ) diversity for the fish community of Chacmochuch Lagoon (SE Mexico), a natural protected area located in the northern portion of the Mesoamerican Barrier Reef System. Fish specimens were sampled in 2004 and 2006. Field work was carried out at three climatic peaks: at 13 stations using a 70 m-long beach seine. The collected data were supplemented with information obtained from a previous work conducted in 2002 and were then analyzed with multivariate statistical methods. In addition, fish composition results from this study were compared to those reported for other similar ecosystems of the region. A total of 68 fish species were recorded, determined as peripheral (high-salinity...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alpha; Beta and gamma diversity; Caribbean; Ichthyofauna; Mexico; Natural protected area.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000100010

Fish diet composition in permanent and semi-permanent pools in tropical wetlands of the Yucatan Peninsula
Provedor de dados: 83
Autores: Hinojosa-Garro,Demián; Arceo-Gómez,Joselito; Zambrano,Luis; Escalera-Vázquez,Luis H.
We compared fish diet composition between permanent (P) and semi-permanent (SP) pools in Petenes Biosphere Reserve (PBR), Campeche. A total of 445 gut contents were examined to determine stomach relative fullness (RF), fish diet as index of niche breadth (INB) and diet overlap. In SP pools, species showed a RF of 1.66 (57.20 % empty stomachs) whereas in P pools, the RF was 2.91 (31.16%). We classified fish diet into six trophic groups: detritivorous, herbivorous-detritivorous, insectivorous, piscivorous, omnivorous and malacophagous. Species in P pools were found to be specialist. Conversely, species present in both habitats shifted to generalist patterns. There was a 54.0% dissimilarity in fish diet composition between pools. From all items identified,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Campeche; Feeding ecology; Freshwater fish; Mexico; Petenes Biosphere Reserve.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000400881

Morphometric variation of the Herichthys bartoni (Bean, 1892) species group (Teleostei: Cichlidae): How many species comprise H. labridens (Pellegrin, 1903)?
Provedor de dados: 83
Autores: Mejía,Omar; Pérez-Miranda,Fabián; León-Romero,Yatzil; Soto-Galera,Eduardo; Luna,Efraín de.
Cichlids of the tribe Heroini have long been a source of taxonomical conflict. In particular, the species included in the Herichthys bartoni group have failed to be recovered as monophyletic in different molecular studies. In this paper we use traditional and geometric morphometrics to evaluate morphological variation in the species included in the H. bartoni complex in order to evaluate the number of species it contains. An update of a previously published DNA barcoding study suggests the existence of three genetic clusters that included the six recognized species analyzed in this study, none of them recovered as monophyletic. On the other hand, geometric morphometrics arise as a useful tool to discriminate species due that traditional morphometrics...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cichlids; COI; DNA barcode; Geometric morphometrics; Mexico.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252015000100061

Range extension and microhabitat of &lt;i&gt;Lightiella incisa&lt;/i&gt; (Cephalocarida)
Provedor de dados: 27
Autores: De Troch, M.; Fiers, F.; Vincx, M.
During an intensive meiofauna sampling campaign in intertidal seagrass beds along the Caribbean coast of the Yucatan Peninsula (Mexico), 131 specimens of &lt;i&gt;Lightiella incisa&lt;/i&gt; (Cephalocarida, Crustacea) were recovered from the sediment. Two-thirds of the specimens were adults, one-third were pre-adults. This collection is the first record of this minute primitive crustacean in the western part of the Caribbean Sea, and extends the known range 3000 km from the type locality of Hastings Bay, Barbados. A detailed sampling protocol and environmental data made it possible to study the microhabitat preferences of this species, and perhaps for cephalocarids in general for the first time. The vertical distribution of &lt;i&gt;L. incisa&lt;/i&gt; in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anoxic sediments Bioturbation Distribution records Ecological distribution Environmental factors Meiobenthos Microhabitats New records Vertical distribution Cephalocarida [horseshoe shrimp] ASW; Mexico; Yucatan Peninsula Mexico.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2097

Ecologie van harpacticoide copepoden: structurele biodiversiteit in tropische zeegrasvelden = Ecology of harpacticoid copepods: structural biodiversity in tropical seagrass beds
Provedor de dados: 27
Autores: De Troch, M.
The term 'biodiversity' is the simple contraction of 'biological diversity', and at first sight the concept is simple too: biodiversity is the total sum of all biotic variation from genes to ecosystems (Purvis &amp; Hector, 2000). The challenge comes in measuring such a broad concept in ways that are useful. The measurement of diversity of one place, group or time is in itself more or less useless. But comparable measurements of diversity from multiple places, groups or times can help us to understand how diversity arose and how we can maintain it. Marine biodiversity is higher in benthic rather than in pelagic systems, and in coasts rather than in open ocean since there is a greater range of habitats near the coast. In addition, losses of marine...
Tipo: Info:eu-repo/semantics/doctoralThesis
Palavras-chave: Meiofauna Seagrass Copepoda [copepods] Halodule wrightii Halophila ovalis Halophila stipulacea Harpacticoida Syringodium isoetifolium Thalassia hemprichii ASW; Mexico; Yucatan; Punta Allen ISEW; Philippines; Mindanao I. ISW; Kenya; Gazi Bay.
Ano: 2001
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8882

Two new species of &lt;i&gt;Mesochra&lt;/i&gt; Boeck, 1865 (Copepoda: Harpacticoida) from a coastal lagoon in Sinaloa State, Mexico
Provedor de dados: 27
Autores: Gomez Noguera, S.E.; Fiers, F.
Two new species of the genus &lt;i&gt;Mesochra, M. pacifica&lt;i&gt; n. sp. and&lt;/i&gt;M. pseudoparva&lt;/i&gt; n. sp. are described from Ensenada del Pabellón Lagoon (southeastern Gulf of California, Mexico). Both species are considered as most closely related to &lt;i&gt;M. parva&lt;/i&gt; Thomson 1946, although they share some features with &lt;i&gt;M. sewelli&lt;/i&gt; Lang 1948. A particular forked structure on the male P3 endopodite of &lt;i&gt;M. pseudoparva&lt;/i&gt; n. sp. was found and the homology of this structure is discussed. An updated key to the species in the genus is provided.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal morphology Coastal lagoons Identification keys New species Shellfish Copepoda [copepods] Harpacticoida Mesochra pacifica Mesochra pseudoparva ISE; Mexico; California Gulf ISE; Mexico; Sinaloa.
Ano: 1997
URL: http://www.vliz.be/imisdocs/publications/303516.pdf

Organics Olympiad 2012: Global Indices of Leadership in  Organic Agriculture
Provedor de dados: 21
Autores: Paull, John.
One hundred and sixty countries now practice organic agriculture. But where are the pockets of excellence? The Organics Olympiad 2012 presents twelve indices of organics leadership with awards medals of gold, silver and bronze in each category. Twenty seven countries score medals in the Organics Olympiad 2012. Germany leads with four medals, India takes second position with one gold and one silver, and Switzerland and USA are equal third on the medal tally, each with one gold and one bronze medal .
Tipo: Newspaper or magazine article
Palavras-chave: "Organics" in general; Africa; Asia; Australia; Austria; Brazil; China; Denmark; European Union; Finland; France; India; Italy; Latin America; Switzerland; United States; Knowledge management; Germany; Mexico.
Ano: 2012
URL: http://orgprints.org/22527/7/22527.pdf

Manejo de la Fertilidad del Suelo en la Producción Orgánica
Provedor de dados: 21
Autores: Garibay, Salvador V.
La agricultura intensiva ha permitido aumentar los rendimientos de los cultivos sin embargo ha causado severos problemas ambientales. La agricultura sustentable alcanza buenos rendimientos con un mínimo impacto en los factores ecológicos como en la fertilidad del suelo. Un suelo fértil provee los nutrientes esenciales para el crecimiento de la planta, soporta una comunidad biótica diversa y activa, exhibe una estructura del suelo típica y permite una descomposición no disturbada. Los sistemas de producción orgánicos son una alternativa a la agricultura convencional.
Tipo: Conference paper, poster, etc.
Palavras-chave: Soil quality; Soil biology; Mexico.
Ano: 2002
URL: http://orgprints.org/2685/1/garibay%2D2002%2DAbstract%2DFertilidad.pdf

Certified with trust and solidarity? Attitude, benefits and challenges of organic farmers in Participatory Guarantee Systems, Cacahoatán, Mexico
Provedor de dados: 21
Autores: Hochreiter, Claudia.
Organic marketing offers an important income source for many Mexican farmers. However, common certification by external agencies results in high costs and bureaucracy, thus limiting farmers’ access to markets. Participatory Guarantee Systems (PGSs) offer alternatives for farmer associations, organising certification as a process of social learning with broad stakeholder integration. The aim of my thesis is to give a socioeconomic profile of the farmers in PGSs and reveal their motives, agro-ecological attitudes, benefits from and challenges of collective organic certification with a particular emphasis on social aspects. For a comparison of a) participatory and b) externally certified farmers I realised interviews and focus group discussions in two groups...
Tipo: Thesis
Palavras-chave: Systems research and participatory research; Social aspects; Markets and trade; Policy environments and social economy; Mexico; Regulation.
Ano: 2011
URL: http://orgprints.org/20108/1/THESIS_PGS_ClaudiaHochreiter.pdf

Co-operative or coyote? Producers’ choice between intermediary purchasers and Fairtrade and organic co-operatives in Chiapas
Provedor de dados: 21
Autores: Milford, Anna Birgitte.
Coffee producers in many parts of the world have the option of either becoming a member of and selling their coffee to a Fairtrade and organic co-operative, or selling it to a ‘‘coyote’’, the Central American nickname for intermediary purchaser. This study investigates why different producers make different choices, looking at both material and immaterial costs and benefits of the two choices. A qualitative study from Chiapas (Mexico) finds that a main reason for not choosing the co-operatives is the production requirements that follow organic certification. A survey on production costs confirms that members of an organic co-operative have more work hours than nonmembers in the same area. A probit analysis indicates that both coffee plot size and number of...
Tipo: Journal paper
Palavras-chave: Farm economics; Social aspects; Markets and trade; Mexico.
Ano: 2014
URL: http://orgprints.org/31567/1/Milford%20Agri%20Hum%20Values%202014.pdf

Oportunidades de Mercado para productos organicos mexicanos en Europa
Provedor de dados: 21
Autores: Garibay, Salvador V.
Presentation about the opportunities for organic products from Mexico on the European market.
Tipo: Conference paper, poster, etc.
Palavras-chave: Markets and trade; Mexico.
Ano: 2010
URL: http://orgprints.org/20185/1/Foro_int_org_FT_Chiapas%2D2010.pdf

La agricultura orgánica como alternativa a la reactivación del campo mexicano
Provedor de dados: 21
Este es básicamente un proyecto de tesis que me gustaría ir enriqueciendo con las lecturas que se vayan haciendo.
Tipo: Project description
Palavras-chave: Mexico.
Ano: 2023

Organics Olympiad 2016: Global Indices of Leadership in Organic Agriculture
Provedor de dados: 21
Autores: Paull, John.
Organic production (including agriculture, wild culture, forestry and aquaculture) is a worldwide phenomenon that is practiced in at least 172 countries. The Organics Olympiad presents 14 indices of global organics leadership, each at three levels (Gold, Silver and Bronze). The Organics Olympiad of 2016 yields 29 countries as global organics leaders, and confirms that organics leadership is diversely distributed across countries, large and small, rich and poor, developed and less so, and cuts across linguistic, ethnic and cultural boundaries. Australia continues to lead the world in organic agriculture hectares. Australia also leads in the increase of organic hectares over the past four years (since the Organics Olympiad 2012) and in the number of WWOOF...
Tipo: Journal paper
Palavras-chave: Farming Systems; Food systems; Africa; Asia; Australia; China; Denmark; European Union; Finland; France; India; Italy; Latin America; Lithuania; Switzerland; Tunisia; United States; World; Knowledge management; Europe; Germany; Mexico.
Ano: 2016
URL: http://orgprints.org/30369/1/Paull2016.OlympiadJSDS.pdf

Two new species of Novantinoe (Disteniini, Disteniidae), two new species of Eurysthea (Elaphidiini, Cerambycinae, Cerambycidae), and new geographical records
Provedor de dados: 84
Autores: Botero,Juan Pablo; Heffern,Daniel; Santos-Silva,Antonio.
Abstract Two new species of Novantinoe from Mexico, N. oaxaquena and N.fabiolae; and two new species of Eurysthea, E. nogueirai, from Mexico, and E. nakagomei from Colombia are described. Furthermore, geographical distributions of three species are expanded.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cerambycoidea; Colombia; Mexico; Taxonomy.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492018000100257

Greenhouse Tomatoes Change the Dynamics of the North American Fresh Tomato Industry
Provedor de dados: 31
Autores: Cook,   Roberta L.; Calvin,   Linda.
The rapid growth of the North American greenhouse tomato industry has changed the longstanding dynamics of the fresh tomato industry. During the 1990s, Canada emerged as the largest North American producer of greenhouse tomatoes, a prominence it never attained in the fresh field tomato industry. The United States and Mexico have also become important greenhouse tomato producers, consistent with their long dominance in North American fresh field tomato production. Greenhouse tomatoes have changed the look of U.S. retail tomato sales, where they now account for 37 percent of the quantity sold of fresh tomatoes. While the primary U.S. fresh field tomato product, the mature green tomato, long dominated retail sales, its share has decreased significantly due to...
Tipo: Report
Palavras-chave: Greenhouse tomatoes; Field tomatoes; Mature green tomatoes; United States; Canada; Mexico; Market integration; Product differentiation; Seasonality in production; Crop Production/Industries.
Ano: 2005
URL: http://purl.umn.edu/7244

Mexican agricultural export competitiveness
Provedor de dados: 31
Autores: Malaga,   Jaime E.; Williams,   Gary W.
This article analyzes the export performance of the Mexican agricultural and food sector in recent years with emphasis on the changing competitiveness of those exports in the U.S. and world markets. The paper includes an examination of the general trends in Mexican agricultural and food exports, an analysis of the international competitiveness of the major subgroups of Mexican agriculture based on the Revealed Comparative Advantage methodology, an assessment of the competitiveness of Mexican exports of specific agricultural and food products to the United States, and a consideration of the effectiveness of Mexico's agricultural and food export market diversification efforts.
Tipo: Journal Article
Palavras-chave: Mexico; Export; Competitiveness; Agricultural.; Agribusiness.
Ano: 2010
URL: http://purl.umn.edu/93507

Debt, Trade, and Payments Issues of Developing Countries and U.S.-Mexican Economic Interdependencies
Provedor de dados: 31
Debt problems of developing countries seriously constrain their economic and social development as well as the prospects and pace of economic recovery in the developed countries. Debt and trade problems of Mexico are particularly important for the U.S. agricultural economy because of the size and importance of U.S.-Mexican agricultural trade. The importance of Mexico as a U.S. trading partner lends importance to research on Mexican supply, demand, and trade of agricultural commodities and on macroeconomic and monetary policies affecting Mexico's demand and capacity to import. The ninth meeting of the Consortium on Trade Research focused on the debt, trade, and payments problems of developing countries and on U.S.-Mexican economic relationships.
Tipo: Conference Paper or Presentation
Palavras-chave: Debt; Trade; Mexico; United States; Agricultural policy; Research.; International Relations/Trade.
Ano: 1983
URL: http://purl.umn.edu/51270

Disaggregating Mexican Migrant Networks: The Parts are Greater Than the Whole
Provedor de dados: 31
Autores: Winters,   Paul C.; Stecklov,   Guy; Davis,   Benjamin.
In this paper, we explore the role of social networks in the migration decision focusing on the distinct influence networks have on domestic and international migration. The analysis focuses particular attention on the composition of migrant networks in order to improve our understanding of how network composition influences the migration decision. Using data from rural Mexico, we consider migration in a multiple choice context allowing for the possibility that individuals can migrate within Mexico for agricultural and non-agricultural employment as well as to the United States. Our principle result is that the parts are greater than the whole; using disaggregated measures of social networks highlights the complexity of network effects on migration...
Tipo: Working or Discussion Paper
Palavras-chave: Migration; Networks; Mexico; Network composition; Labor and Human Capital.
Ano: 2001
URL: http://purl.umn.edu/12952

Farmers' Subjective Valuation of Subsistence Crops: The Case of Traditional Maize in Mexico
Provedor de dados: 31
Autores: Arslan,   Aslihan; Taylor,   J. Edward.
Shadow prices guide farmers' resource allocations, but for subsistence farmers growing traditional crops, shadow prices may bear little relationship with market prices. We econometrically estimate shadow prices of maize using data from a nationally representative survey of rural households in Mexico. Shadow prices are significantly higher than the market price for traditional but not improved maize varieties. They are particularly high in the indigenous areas of southern and southeastern Mexico, indicating large de facto incentives to maintain traditional maize there.
Tipo: Working or Discussion Paper
Palavras-chave: Shadow prices; Non-market values; Supply response; Traditional crops; Onfarm conservation; Mexico; Agricultural and Food Policy; Community/Rural/Urban Development; International Development; O12; O13; Q12; Q39.
Ano: 2008
URL: http://purl.umn.edu/44488

Natural Resource Dependence in Rural Mexico
Provedor de dados: 31
Autores: Lopez-Feldman,   Alejandro; Taylor,   J. Edward; Yunez-Naude,   Antonio.
The relationship between poverty and natural resources is complex and the empirical evidence to date, mostly from studies of forest activities and poverty, is inconclusive.  The main purpose of this paper is to empirically identify the effects of household characteristics and of inequality at the village level on natural resource extraction and dependence. To do so we use data from the Mexico National Rural Household Survey (ENHRUM). Our results show that in rural Mexico natural resource extraction is predominantly an activity carried out by poor households. The same is true for dependence. We also show that there are important differences across Mexico in terms of both participation and dependence on resource income. These differences are most evident...
Tipo: Conference Paper or Presentation
Palavras-chave: Resource extraction; Dependence; Poverty; Mexico; Community/Rural/Urban Development; Environmental Economics and Policy; International Development.
Ano: 2010
URL: http://purl.umn.edu/61230

The Changing Structure of Pork Trade, Production, and Processing in Mexico
Provedor de dados: 31
Autores: Batres-Marquez,   S. Patricia; Clemens,   Roxanne; Jensen,   Helen H.
The structure of the pork production, slaughter, and processing sectors in Mexico has changed significantly since implementation of the North American Free Trade Agreement (NAFTA) and with rising income and increased urbanization. Today, Mexico'’s pork industry has become more integrated and achieved greater production efficiencies in response to increasing demand for better product quality and stricter sanitary practices in production and processing pork for both the domestic market and for export. However, despite these improvements Mexico’'s pork industry has not kept up with the rising domestic demand, and Mexico has become an increasingly important market for the United States. A key to the development of increased trade in both live animals and pork...
Tipo: Working or Discussion Paper
Palavras-chave: Live hogs and pork trade; Mexico; NAFTA; Pork industry; Pork slaughter; TIF plants; Industrial Organization; Marketing; Agribusiness; International Relations/Trade.
Ano: 2006
URL: http://purl.umn.edu/18713

ALBERTA’S EXPORT EXPERIENCE UNDER FREE TRADE AGREEMENTS, 1989-2008: TWENTY YEARS OF FREE TRADE
Provedor de dados: 31
Autores: Mirus,   Rolf; Emter,   Nicholas A.
The period of free trade from 1989 to 2008 coincided with a strong expansion of Alberta’s exports. Our review shows that several factors contributed to this success. In addition to favorable trends in energy and commodity prices, the improved access to the US and Mexican markets that resulted from the CUSFTA and NAFTA are shown to be major causes of the positive development of Alberta’s exports. In particular, the significant increase in manufacturing exports can be attributed to the free trade agreements because manufacturing products face higher tariffs in export markets than do raw materials and energy products. Alberta’s manufacturing sector, therefore, emerges as a major beneficiary of freer trade. As a result, Alberta’s economy has become more...
Tipo: Report
Palavras-chave: NAFTA; FTA; Free Trade Areas; Preferential trade agreements; Imports; Exports; Alberta; United States; US; Trade patterns; Trade relations; Mexico; International Development; International Relations/Trade.
Ano: 2009
URL: http://purl.umn.edu/60425

Assessing the Vulnerability of Agricultural Households to Macroeconomic Shocks: Evidence from Mexico
Provedor de dados: 31
Autores: Rubio,   Gloria M.; Soloaga,   Isidro.
This paper uses cross-sectional data from Mexico before and after the 1994 peso crisis to analyze rural household vulnerability to macroeconomic shocks. The study suggests that agricultural households are less vulnerable than non-agricultural households. The impacts vary depending on type of production and specialization level. Among agricultural households, those with a higher proportion of corn and bean production for self-consumption fared better than households which engaged in stronger market participation. Although the decline in their monetary income and consumption was more or less similar to that of the more market-oriented agricultural households, they were better able to shield their total income and consumption as well as their food expenditures.
Tipo: Journal Article
Palavras-chave: Economic shocks; Household vulnerability; Mexico; Rural poverty; Consumer/Household Economics; Food Security and Poverty.
Ano: 2004
URL: http://purl.umn.edu/12007

The Exchange Rate and Inward Foreign Direct Investment in Mexico
Provedor de dados: 31
Autores: Parajuli,   Shanta; Kennedy,   P. Lynn.
This paper analyzed the exchange rate and inward foreign direct investment (FDI) in Mexico from the 25 developed countries comprising the Organization for Economic Co-operation and Development (OECD). Our empirical result does not support the significant relationship between exchange rate and exchange rate volatility to determine FDI in Mexico. The wages, export, and distance are found to be significant variables to determine FDI in Mexico which is supported by literatures.
Tipo: Conference Paper or Presentation
Palavras-chave: Exchange rate; Foreign direct investment; Mexico; OECD; International Relations/Trade.
Ano: 2010
URL: http://purl.umn.edu/56459

Increasing the United States Tariff-Rate Sugar Quota for Cuba and Mexico: A Partial-Equilibrium Simulation
Provedor de dados: 31
Autores: Petrolia,   Daniel R.; Kennedy,   P. Lynn.
Increases in the United States tariff-rate quota for sugar are simulated to determine the impact of Cuban market access and an increased Mexican allotment.  The effects on both domestic and international sugar markets, including production, consumption, prices and trade, are determined and welfare effects identified.  This analysis is carried out using a partial-equilibrium simplified world trade model,  Modele International Simplifie de Simulation (MISS), which simulates, in a comparative-static framework, the effects of various policy actions.
Tipo: Journal Article
Palavras-chave: Cuba; Mexico; Sugar; Tariff-rate quota; F13; F17; Q17.
Ano: 2003
URL: http://purl.umn.edu/43200

Evaluating Targeted Cash Transfer Programs: A General Equilibrium Framework with an Application to Mexico
Provedor de dados: 31
Autores: Coady,   David P.; Harris,   Rebecca Lee.
It is now widely accepted that social safety nets play a crucial role in any comprehensive poverty alleviation strategy. However, many people perceive that existing social safety nets are not cost effective because they are both badly targeted to poor households and often involve inefficient financing policies. Consequently, many developing-country governments and international development institutions have come to favor direct transfer instruments such as cash transfers or subsidized food rations. But most evaluations of such programs focus solely on the partial equilibrium impacts of program targeting outcomes, and those that focus on the general equilibrium impacts tend to concentrate on their efficiency implications with very limited analysis of income...
Tipo: Report
Palavras-chave: Economic assistance; Domestic; Mexico; Evaluation; Public welfare; Agricultural and Food Policy.
Ano: 2004
URL: http://purl.umn.edu/37893

Panel Data Evidence on the Determinants of Non-Timber Forest Products Extraction: The Case of Xate in Mexico
Provedor de dados: 31
Autores: Lopez-Feldman,   Alejandro.
This paper examines the determinants behind households' decisions regarding non-timber forest products extraction. Data from Mexico is used to estimate a selection model. Results show that individuals with low levels of human capital are more likely to extract than other individuals; the same is true for individuals from poor households.
Tipo: Conference Paper or Presentation
Palavras-chave: Non-timber forest products; Natural resource extraction; Chamaedorea; Mexico; Resource /Energy Economics and Policy; Q21; Q56; D13.
Ano: 2005
URL: http://purl.umn.edu/19410

Intellectual Property Rights and Their Impacts in Developing Countries: An Empirical Analysis of Maize Breeding in Mexico
Provedor de dados: 31
Autores: Leger,   Andreanne.
There is little empirical evidence concerning the effects of intellectual property rights (IPR) on a technologically advanced developing country. Complete enumeration of the Mexican maize breeding industry showed that, contrary to the hypothesis that IPR would provide, in a technologically advanced developing country, incentives for R&amp;D and innovation, IPR play no role for the industry in general, but that they are important for certain breeders' categories. The paper presents the theory on IPR and a short background on the Mexican maize breeding industry. The analysis of the interviews with maize breeders leads to the conclusion that the theory on IPR should be revised and take into account the characteristics of developing countries critical for the...
Tipo: Working or Discussion Paper
Palavras-chave: Intellectual property rights; Developing Country; Empirical Evidence; Transaction costs; Mexico; Maize; Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies; O34; Q16; O31; Q17.
Ano: 2005
URL: http://purl.umn.edu/18835

Evaluating the Cost of Poverty Alleviation Transfer Programs: An Illustration Based on PROGRESA in Mexico
Provedor de dados: 31
Autores: Coady,   David P.; Perez,   Raul; Vera-Illamas,   Hadid.
One of the common criticisms of poverty alleviation programs is that the high share of administrative (nontransfer) costs substantially reduces the programs’ impact on poverty. But very little empirical evidence exists on program costs. For example, a recent extensive international review of targeted poverty alleviation programs in developing countries could find data on costs for only 32 out of the 111 program reviewed. Even then, the numbers available were not always comparable. In this paper, we present a detailed analysis of the cost structure of a program recently introduced in Mexico, called PROGRESA. Our analysis shows how cost data can be used as the basis for an evaluation of the cost efficiency of anti-poverty programs. It cautions, however, that...
Tipo: Working or Discussion Paper
Palavras-chave: Cost efficiency; Poverty alleviation; Human capital; Mexico; Food Security and Poverty.
Ano: 2005
URL: http://purl.umn.edu/59284

POSSIBILITIES AND PERSPECTIVES OF INTEGRATING HOUSEHOLD ANALYSIS IN CGE MODELS: THE CASE OF MEXICO
Provedor de dados: 31
Autores: Mellado,   Aida Gonzalez.
This paper offers a possibility of bringing household analysis into Computable General Equilibrium (CGE) modelling. In this research, the CGE model developed by the Global Trade Analysis Project (GTAP) is extended. The extended GTAP model splits private consumption into ten different household categories according to observed expenditure patterns for Mexico. The extended model is used to simulate possible effects on Mexican household categories which are carried out under three different trade liberalization scenarios.
Tipo: Conference Paper or Presentation
Palavras-chave: Trade liberalization; Mexico; Poverty alleviation; Household analysis; GTAP; Consumer/Household Economics.
Ano: 2006
URL: http://purl.umn.edu/14970

Economic Viability of Polyculture of Nile Tilapia and Australian Redclaw Crayfish in Yucatan State, Mexico
Provedor de dados: 31
Autores: Ponce-Marban,   Donny; Hernandez,   Juan; Gasca-Leyva,   Eucario.
Tilapia culture in rural communities of the state of Yucatan, Mexico, has been increasing in recent decades.  Polyculture of tilapia with other more commercially valuable species is an opportunity to substantially improve the economic yields of rural producers.  The economic viability of implementing a Nile tilapia with Australian redclaw crayfish polyculture was analyzed using profitability indicators such as internal rate of return (IRR) and net present value of the investment (NPV).  A bioeconomic model was developed to simulate three production densities (33/0, 33/20, tilapia and crayfish, respectively), accounting for investment recuperation in time horizons of 5, 10 and 15 years.  The model includes a biological sub-model describing the growth of...
Tipo: Conference Paper or Presentation
Palavras-chave: Economic Viability; Polyculture; Nile Tilapia; Australian Redclaw Crayfish; Yucatan; Mexico; Livestock Production/Industries; O13; Q22.
Ano: 2005
URL: http://purl.umn.edu/56080

Remittances, Inequality and Poverty: Evidence from Rural Mexico
Provedor de dados: 31
Autores: Taylor,   J. Edward; Mora,   Jorge; Adams,   Richard H., Jr.; Lopez-Feldman,   Alejandro.
Remittances
Tipo: Working or Discussion Paper
Palavras-chave: Migration; Remittances; Inequality; Poverty; Mexico; Food Security and Poverty; International Development.
Ano: 2005
URL: http://purl.umn.edu/60287

The Mexican Animal Identification System: Current Situation, Problems, and Potential
Provedor de dados: 31
Autores: Ortega,   Carlos; Peel,   Derrell S.
Mexico initiated a federal animal  identification (ID) system (SINIIGA) in 2003. The program is administered by an agency of the federal Department of Agriculture (SAGARPA) and has been used primarily to support a federal subsidy program for livestock producers. The program is conceptually well designed, but implementation thus far falls short of the potential and needs, most importantly in animal disease management. Although substantial numbers of animals have been tagged, relatively little progress has been made in developing a usable animal ID information system. Animal health officials currently are not actively involved in the development and use of the system.
Tipo: Journal Article
Palavras-chave: Mexican animal ID system; Livestock; Mexico; Agribusiness; Agricultural and Food Policy; Farm Management; International Development; Livestock Production/Industries; Political Economy; Q13; Q18.
Ano: 2010
URL: http://purl.umn.edu/92597

Evidence of non-linear price transmission between maize markets in Mexico and the US
Provedor de dados: 31
Autores: Araujo-Enciso,   Sergio Rene.
The present work provides evidence that non linear co-integration between Mexico and the US maize prices exists, at country and regional level. The models suggest that Mexican prices adjust at changes in US prices. Despite asymmetry was statistically rejected, it is likely that it might occur for thriving parameters different that zero in the error correction term. The results suggest on which way the research might be improved in order to assess such co-integration relationship accurately.
Tipo: Conference Paper or Presentation
Palavras-chave: Co-integration; Asymmetric price transmission; Vector error correction model; Error      correction term; Loading parameter; Mexico; US; Maize; Agricultural and Food Policy; Food Security and Poverty; Research Methods/ Statistical Methods; C32; Q11; Q13.
Ano: 2009
URL: http://purl.umn.edu/51366

Preferential Trade Agreements: The Case of EU-Mexico
Provedor de dados: 31
Autores: Busse,   Matthias; Huth,   Matthias; Koopmann,   Georg.
The paper evaluates the political and economic incentives to conclude the EU-Mexico Free Trade Agreement (FTA). It discusses EU and Mexican trade policy as well as the multilateral context for FTAs. In addition, using a disaggregated approach at the three-digit Standard International Trade Classification, it identifies the commodities that will be particularly affected by the FTA. The results show that considerable trade effects can be expected in a narrow range of products and that the EU is likely to gain much more than Mexico. In diesem Papier werden die politischen und ökonomischen Anreize zur Vereinbarung des Freihandelsabkommens zwischen der EU und Mexiko bewertet. Dafür werden die europäische und mexikanische Handelspolitik analysiert und der...
Tipo: Working or Discussion Paper
Palavras-chave: Free Trade Agreement; European Union; Mexico; International Relations/Trade; F15; F17.
Ano: 2000
URL: http://purl.umn.edu/26269

The Paradox of Agricultural Subsidies: Measurement Issues, Agricultural Dumping, and Policy Reform
Provedor de dados: 31
Autores: Wise,   Timothy A.
World trade talks have foundered recently, in part due to developing country demands that industrialized countries reduce their large farm support programs to allow poor  farmers in the global South to compete more fairly. Claiming that Northern farm subsidies amount to over $1 billion a day, and that the average European cow receives more in subsidies than the nearly three billion people who live on less than two dollars a day, Southern governments, farmer groups, and international aid groups have demanded steep cuts in Northern agricultural subsidies. This paper examines the economic and policy aspects of the subsidy debate. We begin with an examination of the most widely used measure of agricultural support, the OECD's Producer Support Estimate. We...
Tipo: Working or Discussion Paper
Palavras-chave: Trade; Agricultural subsidies; Corn; Mexico; Agricultural and Food Policy.
Ano: 2004
URL: http://purl.umn.edu/15590

Pollution Control in the Informal Sector: The Ciudad Juarez Brickmakers' Project
Provedor de dados: 31
Autores: Blackman,   Allen; Bannister,   Geoffrey J.
Low-technology unlicensed micro-enterprises known as "informal" firms are a significant source of pollution in developing countries that are virtually impossible to regulate in the conventional manner. This paper describes an example of an innovative and promising approach to the problem: the Ciudad Juarez Brickmakers' Project, a private-sector-led initiative aimed at abating highly polluting emissions from Ciudad Juarez, Mexico's approximately 300 informal brick kilns. We draw four lessons from the Project's history. First, private-sector-led initiatives can work -- indeed they may be more effective than public-sector-initiatives -- but they require strong public sector support. Second, necessary conditions for effective environmental management in the...
Tipo: Working or Discussion Paper
Palavras-chave: Informal sector; Air pollution; Mexico; Brickmaking; Community pressure; Environmental Economics and Policy; O17; O22; O33; O54; Q25; L61.
Ano: 1998
URL: http://purl.umn.edu/10478

Must Conditional Cash Transfer Programs Be Conditioned to Be Effective?: The Impact of Conditioning Transfers on School Enrollment In Mexico
Provedor de dados: 31
Autores: de Brauw,   Alan; Hoddinott,   John.
A growing body of evidence suggests that conditional cash transfer (CCT) programs can have strong, positive effects on a range of welfare indicators for poor households in developing countries. However, the contribution of individual program components toward achieving these outcomes is not well understood. This paper contributes to filling this gap by explicitly testing the importance of conditionality on one specific outcome related to human capital formation (namely school enrollment), using data collected during the evaluation of Mexico’s Programa de Educación, Salud, y Alimentación (PROGRESA) CCT program. We exploit the fact that some PROGRESA beneficiaries who received transfers did not receive the forms needed to monitor their children’s attendance...
Tipo: Working or Discussion Paper
Palavras-chave: Conditionality; Cash transfers; School enrollment; School attendance; PROGRESA; Mexico; Community/Rural/Urban Development.
Ano: 2008
URL: http://purl.umn.edu/42814

Production Efficiency and Diversification in Mexican Coffee-Producing Districts
Provedor de dados: 31
Autores: Vedenov,   Dmitry V.; Houston,   Jack E.; Cardenas,   Gabriela.
Coffee production system is analyzed for 24 municipios (districts) in Veracruz, Mexico, from 1997 to 2002.  A stochastic frontier approach is used to estimate an input distance function and to evaluate production efficiency.  Results show the production process to be stable over time despite global price fluctuations.  Production of staple crop (corn) with either coffee or other cash crops results in increased efficiency as a result of the economies of complementarity, while production of coffee with other cash crops leads to lower efficiency.  Factors contributing to higher efficiency included higher population density, road availability, and higher altitude, typically associated with production of higher-quality coffee.
Tipo: Journal Article
Palavras-chave: Coffee production; Distance function; Mexico; Production systems; Stochastic frontier; Technical efficiency; L25; L79; O13; Q12.
Ano: 2007
URL: http://purl.umn.edu/37063

DEFORESTATION AND AGROFORESTRY ADOPTION IN TROPICAL FORESTS: CAN WE GENERALIZE? SOME RESULTS FROM CAMPECHE, MEXICO AND RONDONIA, BRAZIL
Provedor de dados: 31
Autores: Casey,   James F.; Caviglia-Harris,   Jill L.
The adoption of sustainable agriculture and other sustainable forestry  methods that can help to reduce tropical deforestation have received a great deal of attention in  the literature (Adesina and Zinnah 1993, Akinola and Young 1985, Feder and Slade 1984, Holden 1993, Kebede et al. 1990). Although results from different studies can be compared in an absolute sense, there are very few individual studies that compare results and determine, through empirical analysis, whether policy can be universally applied. This paper uses farm-level data to determine whether some universal conclusions can be drawn about the adoption of agroforestry by peasant farmers in developing countries by comparing the land use choices of farmers in Rondônia, Brazil and Campeche,...
Tipo: Conference Paper or Presentation
Palavras-chave: Brazil; Mexico; Agroforestry; Tropical Deforestation; Sustainable Agriculture; Adoption; Amazon; Campeche; Rondonia; Resource /Energy Economics and Policy.
Ano: 2000
URL: http://purl.umn.edu/36466

The Neoliberal Myth in Latin America: The Cases of Mexico and Argentina in the ‘90s
Provedor de dados: 31
Autores: Ronchi,   Veronica.
During the '90s most Latin American countries were submitted to neoliberal structural reform policies. Neoliberal policies imposed market supremacy, reduced the State's role in the economy and deregulated the markets. This paper aims at describing how these policies affected the most important macroeconomic indexes, with special emphasis on Argentina and Mexico, the two countries that suffered most from the economic crises of the '80s and '90s, and where the neoliberal policies were applied with greater orthodoxy. In spite of a slight improvement in some macroeconomic indexes, in Latin America neoliberalism failed to reduce poverty and unemployment, and was unable to guarantee a fair distribution of the wealth and improve welfare.
Tipo: Working or Discussion Paper
Palavras-chave: Latin America; Mexico; Argentina; '90s; Neoliberalism; Political Economy; E21; E22; E24; E26; N16; N26; N36; O16.
Ano: 2007
URL: http://purl.umn.edu/9335

Mexico Agriculture Policy Review
Provedor de dados: 31
Autores: Cahill,   Carmel; Jotanovic,   Aleksandar; Abraham,   Cally.
As a NAFTA partner and Canada's third largest export market for agri-food products, developments in Mexico are of direct interest to Canada. Rural poverty, low productivity, poor infrastructure and unclear property rights for both land and water still inhibit the efforts of Mexico's government to improve competitiveness of its agricultural sector.
Tipo: Report
Palavras-chave: Mexico; Agricultural policy; Liberalization; Resource governance; Infrastructure; Subsistence; Agricultural and Food Policy; Environmental Economics and Policy; International Relations/Trade; Land Economics/Use; Resource /Energy Economics and Policy.
Ano: 2008
URL: http://purl.umn.edu/46509

Adoption of Clean Leather-Tanning Technologies in Mexico
Provedor de dados: 31
Autores: Blackman,   Allen.
In many developing countries, a host of financial, institutional, and political factors hamstring conventional environmental regulation. Given these constraints, a promising strategy for controlling pollution is to promote the voluntary adoption of clean technologies. Although this strategy has received considerable attention in policy circles, empirical research on the adoption of clean technologies in developing countries is limited. This paper presents historical background and original survey data on the adoption of five clean tanning technologies by a sample of 137 leather tanneries in Leon, Guanajuato, Mexico, a city where tanneries have serious environmental impacts and conventional environmental regulation has repeatedly failed to mitigate the...
Tipo: Working or Discussion Paper
Palavras-chave: Clean technology; Leather tanning; Developing country; Mexico; Environmental Economics and Policy; Q53; Q55; Q56; 013; 033.
Ano: 2005
URL: http://purl.umn.edu/10881

Gender, Networks and Mexico-U.S. Migration
Provedor de dados: 31
Autores: Winters,   Paul C.; Davis,   Benjamin.
In this paper, we examine whether the causes and patterns of Mexican rural female migration differ significantly from rural male migration. A number of hypotheses are discussed to explain why female migration may differ from male migration, with a particular emphasis on the role of migrant networks. Using data from a national survey of rural Mexican households in the ejido sector, significant differences between the determinants of male and female migration are found. While evidence suggests that networks play an important role in female migration, we find that, contrary to case study evidence, female networks are not more influential than male networks in female migration. In fact, female and male networks are found to be substitutes, suggesting they...
Tipo: Working or Discussion Paper
Palavras-chave: Migration; Networks; Gender; Mexico; Labor and Human Capital.
Ano: 2000
URL: http://purl.umn.edu/12901

Successful organizational learning in the management of agricultural research and innovation: the Mexican produce foundations
Provedor de dados: 31
Autores: Ekboir,   Javier M.; Dutrenit,   Gabriela; Martinez V.,   Griselda; Vargas,   Arturo Torres; Vera-Cruz,   Alexandre O.
Since the 1980s, developing countries’ agriculture has become more complex and diversified. In general, the public research and extension institutions in these countries were criticized for not participating in the emergence of the most dynamic agricultural markets. In recent years, many of these institutions have struggled to adapt to the new environment but they could not overcome the hurdles posed by organizational rigidities, strict public regulations, deteriorating human capital, shrinking budgets and a model of science that hampered their integration into dynamic innovation processes.  In general, developing countries applied similar agricultural research policies: separation of financing and implementation of research, reductions in direct budgetary...
Tipo: Report
Palavras-chave: Agricultural Research; Mexico; Finance; Agricultural Innovations; Organizational Learning; Research and Development/Tech Change/Emerging Technologies.
Ano: 2009
URL: http://purl.umn.edu/55511

Informal Sector Pollution Control: What Policy Options Do We Have?
Provedor de dados: 31
Autores: Blackman,   Allen.
In developing countries, urban clusters of informal firms such as brick kilns and leather tanneries can create severe pollution problems. However, these firms are quite difficult to regulate for a variety of technical and political reasons. Drawing on the literature, this paper first develops a list of feasible environmental management policies. It then examines how these policies have fared in four independent efforts to control emissions from informal brick kilns in northern Mexico. The case studies suggest that: (i) conventional command and control process standards are generally only enforceable when buttressed by peer monitoring, (ii) surprisingly, clean technologies can be successfully diffused even when they raise variable costs, in part because...
Tipo: Working or Discussion Paper
Palavras-chave: Informal sector; Environmental policy; Latin America; Mexico; Environmental Economics and Policy.
Ano: 2000
URL: http://purl.umn.edu/10634

Economic Analysis of the Liberalization of Red Meat Markets in the Pacific Region from 1988 to 2007
Provedor de dados: 31
Autores: Charlebois,   Pierre; Gagne,   Stephan; Gendron,   Carole.
The liberalization of red meat (beef and pork) markets since 1988 is a good example of government action that has led to significant gains for the Canadian and American agri-food industries. Japan, South Korea and Mexico are the main countries that have liberalized their red meat markets since 1988. This industry has also benefited from the agreement between Canada and the United States. It has also made gain from the liberalization of the pork market in Australia and the Philippines, and the beef market in Indonesia.  This analysis captures the impact on the price received by farmers as well as on Canadian production in the absence of these increased market access. The combination of lower prices and lower production would have caused annual average...
Tipo: Report
Palavras-chave: Liberalization; Benefits; Red meats; Pork; Beef; Japan; Korea; Mexico; Agribusiness; Agricultural and Food Policy; International Relations/Trade; Livestock Production/Industries.
Ano: 2008
URL: http://purl.umn.edu/47133

IMPACTO DEL TLCAN EN EL COMERCIO AGRÍCOLA
Provedor de dados: 31
Autores: Crawford,   Terry L.
The North American Free Trade Agreement (NAFTA) is a comprehensive trade liberalizing agreement among Canada, Mexico, and the United States. This is especially true for Agricultural trade between Mexico, and the United States. Agricultural trade barriers between Mexico and the United States were completely eliminated on January 1, 2008. The agreement facilitates cross-border investment, phytosanitary standards, cooperation regarding the environment and labor, and set up a dispute resolution procedure, and regular consultation procedures. Each of the countries entered NAFTA hoping to gain greater market access and growth in trade, as well as access to capital, technology, a favorable trade advantage and other gains. The question is, were these expectations...
Tipo: Journal Article
Palavras-chave: NAFTA; Agriculture; Trade; Mexico; Canada; United States; Investment.; Agribusiness.
Ano: 2011
URL: http://purl.umn.edu/99463

INTEGRATION AND BEHAVIOR IN THE U.S. WINTER MARKET FOR FRESH TOMATOES
Provedor de dados: 31
Autores: Jordan,   Kenrick H.; VanSickle,   John J.
Alternative hypotheses of market integration in the U.S. winter market for fresh tomatoes were evaluated using a dynamic model of spatial price adjustment.  The results showed that while Florida and Mexico were integrated in the same market, a price change in one area was not instantaneously reflected in the other.  Lagged effects were important with long-run integration being supported for both Florida and Mexico and short-run integration for Mexico.  However, the information flow, while relatively efficient, was not symmetric.  Florida was found to be dominant in the price formation process with Mexico responding to changes in the Florida price.
Tipo: Journal Article
Palavras-chave: Florida; Market integration; Mexico; Pricing; Tomatoes; Marketing.
Ano: 1995
URL: http://purl.umn.edu/15349

Collective Action for the Conservation of On-Farm Genetic Diversity in a Center of Crop Diversity: An Assessment of the Role of Traditional Farmers’ Networks
Provedor de dados: 31
Autores: Badstue,   Lone B.; Bellon,   Mauricio R.; Berthaud,   Julien; Ramirez,   Alejandro; Flores,   Dagoberto; Juarez,   Xochitl; Ramirez,   Fabiola.
This project explored the possible role of collective action among small-scale farmers in managing and maintaining genetic resources in a center of crop diversity. It focused on the local institutions that ensure the supply of seed of diverse maize landraces to small-scale farmers in the Central Valleys of Oaxaca, Mexico. The key hypothesis was that the medium-to-long-term supply of a diverse set of varieties to any individual smallscale maize farmer depends on an agreement among a group of farmers to manage and supply the seed of these landraces to each other, if the need arises, and that this constitutes a form of collective action. Six communities were studied, three of them indepth. Methodologies used included in-depth semi-structured interviews with...
Tipo: Working or Discussion Paper
Palavras-chave: Maize; Small-scale farmers; Informal seed systems; Genetic resources; Mexico; Collective action; Crop Production/Industries; Resource /Energy Economics and Policy.
Ano: 2005
URL: http://purl.umn.edu/50067

The impact of the Mexican crisis on trade, agriculture, and migration
Provedor de dados: 31
Autores: Robinson,   Sherman; Burfisher,   Mary E.; Thierfelder,   Karen.
"September 1995." Includes bibliographical references (leaf 17).
Tipo: Working or Discussion Paper
Palavras-chave: Mexico; Balance of trade; Equilibrium (Economics) -- Econometric models; Economic conditions; International Relations/Trade.
Ano: 1995
URL: http://purl.umn.edu/97771

Collective Action for Water Harvesting Irrigation in Lerma-Chapala Basin, Mexico
Provedor de dados: 31
Autores: Scott,   Christopher A.; Silva-Ochoa,   Paula.
Water and watersheds are difficult to separate for management purposes. Providing irrigation as a supplement to rainfall for crop production requires considerable collective action at the watershed level to mobilize labor and other resources, as well as to make decisions and implement the distribution of benefits. Small- scale water harvesting irrigation systems in Mexico have endured for centuries. They now face considerable challenges with changes in the ejido property rights over land and water, the growing importance of alternative sources of livelihoods, and increasing scarcity and competition for water within the river basins. Two case studies of water harvesting irrigation systems in the Lerma-Chapala Basin illustrate the response of communities to...
Tipo: Working or Discussion Paper
Palavras-chave: Irrigation; Watershed; Water harvesting; Water; Collective action; Property rights; Mexico; Resource /Energy Economics and Policy.
Ano: 2001
URL: http://purl.umn.edu/50057

Land Abandonment in an Agricultural Frontier After a Plant Invasion: The Case of Bracken Fern in Southern Yucatan, Mexico
Provedor de dados: 31
Autores: Schneider,   Laura; Geoghegan,   Jacqueline.
Plant invasions and their impact on land use pose difficult research questions, due to the complex relationships between the ecological nature of the invasion and the human responses to the invasion. This paper focuses on the linkages between an invasion of bracken fern and land use decisions in an agricultural frontier in southern Mexico. Agriculture in this region is practiced on an extensive basis, using traditional slash-and-burn techniques of temporary cultivation and continuous rotation through forest fallow. We investigate the factors that affect the decision of a subsistence farmer to either continue cultivating an invaded agricultural plot or permanently abandon the plot and cultivate elsewhere. We develop an agricultural household model of land...
Tipo: Journal Article
Palavras-chave: Bracken fern invasion; Land abandonment; Agricultural household model; Mexico; Land Economics/Use.
Ano: 2006
URL: http://purl.umn.edu/10184

Populism and Neopopulism in Latin America: Clientelism, Trade Union Organisation and Electoral Support in Mexico and Argentina in the '90s
Provedor de dados: 31
Autores: Ronchi,   Veronica.
The state of anomie that has characterised and still characterises most Latin American countries, resulting from the fragmentation of the social fabric, has encouraged the rise of successful personalist leaderships in the ‘90s. This paper aims at investigating how neopopulism developed in Latin America, considering as main actors the two Presidents who have best embodied this ideal: Carlos Salinas de Gortari, (Mexico 1988-1994) and Carlos Menem (Argentina 1989-1999).  Neopopulism is based on an economic project, the neoliberal policy based on cuts in the welfare, which seems very far from the populist positions of the past. Populism revives through the charisma of these Presidents, bypassing institutional or organisational forms of mediation between the...
Tipo: Working or Discussion Paper
Palavras-chave: Latin America; Mexico; Argentina; ’90s; Populism; Neopopulism; Political Economy; I38; J88; N16; N26; N36; N46.
Ano: 2007
URL: http://purl.umn.edu/9336

Liberalizacion y reformas al agro: lecciones de Mexico
Provedor de dados: 31
Autores: Naude,   Antonio Yunez.
Este artículo examina los Acuerdos de la liberalización del mercado de Norteamérica (NAFTA) con el objeto de analizar el impacto sobre la agricultura y la economía rural en México, y evaluar las políticas introducidas por México para acompañar el proceso. La primera conclusión es que, el NAFTA ha cubierto las predicciones e intensificado las tendencias pre-NAFTA en la agricultura mexicana. La segunda es que la liberalización del mercado promueve y facilita la difícil transición hacia una economía más abierta, y simultáneamente las  políticas sectoriales que promueven un desarrollo rural integrado. La experiencia mexicana, sin embargo, muestra que la visión polarizada que presentan varios agentes políticos con respecto a la elección de políticas públicas...
Tipo: Journal Article
Palavras-chave: Effects free trade agreements; Agriculture; Mexico; Public policies; International Relations/Trade; Q17.
Ano: 2006
URL: http://purl.umn.edu/7990

PROGRESA and Its Impacts on the Welfare of Rural Households in Mexico
Provedor de dados: 31
Autores: Skoufias,   Emmanuel.
In the second half of the twentieth century, many developing countries adopted broad social assistance programs, like food subsidies, ostensibly designed to help poor people. Their effectiveness was mixed and, unfortunately, many of these expensive programs did not make much difference in the lives of poor people, much less help them climb permanently out of poverty. In the 1990s Mexico took a completely new approach. It launched a social program— PROGRESA—that was revolutionary in two ways. First, PROGRESA aimed to integrate interventions in health, education, and nutrition simultaneously, based on an understanding that these dimensions of human welfare are interdependent and that poor health, education, and nutrition are both causes and consequences of...
Tipo: Report
Palavras-chave: Rural poor; Government policy; Programa de Educación; Salud y Alimentación (Mexico City; Mexico); Evaluation; Poverty; Government policy; Mexico; Social policy; Consumer/Household Economics.
Ano: 2005
URL: http://purl.umn.edu/37891

THE IMPACT OF IMPROVED MAIZE GERMPLASM ON POVERTY ALLEVIATION: THE CASE OF TUXPENO-DERIVED MATERIAL IN MEXICO
Provedor de dados: 31
Autores: Bellon,   Mauricio R.; Adato,   Michelle; Becerril,   Javier; Mindek,   Dubravka.
This study documents how poor small-scale farmers in lowland tropical Mexico use improved maize germplasm and how this contributes to their well-being. It does this by assessing both the direct adoption of improved varieties and examining the process of their “creolization.” By exposing improved varieties for replanting, and in some cases promoting their hybridization with landraces, either by design or by accident, farmers produce what they recognize as “creolized” varieties. Our key hypothesis is that poor farmers benefit from improved germplasm through creolization. Creolization provides farmers with new options, as they deliberately modify an improved technology generated by the formal research system to suit their own circumstances and needs....
Tipo: Working or Discussion Paper
Palavras-chave: Poverty; Agricultural research; Sustainable livelihoods; Vulnerability; Agricultural extension; Maize germplasm; Creolization; Mexico; Crop Production/Industries; Food Security and Poverty.
Ano: 2003
URL: http://purl.umn.edu/16471

An Overview of Mexico’s Citrus Industry
Provedor de dados: 31
Autores: Castro-Anzola,   Juan D.
This report looks at Mexico’s citrus industry and its relationship to the United States.  Information on Mexico’s citrus production, utilization and trade are discussed.
Tipo: Report
Palavras-chave: Mexico; Citrus industry; International Relations/Trade.
Ano: 2006
URL: http://purl.umn.edu/36832

Conversion from Staple to Cash Crop Production in Mexico After NAFTA: Effects of PROCAMPO and Credit Constraints
Provedor de dados: 31
Autores: Henderson,   Joanne; Baylis,   Katherine R.; Barton,   Jason.
In this paper, we ask whether PROCAMPO helped Mexican agricultural producers benefit from NAFTA. Specifically, we explore the effect of these decoupled income payments (PROCAMPO) on producers’ ability to switch to cash crop production, and whether these payments help alleviate credit constraints for poorer producers. Given that WTO negotiations are currently stalled in part because of the trade concerns of developing nations, exploring the constraints that small producers face and whether decoupled subsidies can assist those producers in benefiting from new markets is important. Unlike previous studies, who concentrated on specific regions and ejidal lands, we use nationwide county-level data, which allows for us to see the regional distribution of change...
Tipo: Conference Paper or Presentation
Palavras-chave: NAFTA; PROCAMPO; Credit Constraint; Mexico; Staple production; Crop choice; International Relations/Trade.
Ano: 2010
URL: http://purl.umn.edu/61525

THE IMPACT OF CONSERVATION TILLAGE ON THE PRODUCTIVITY AND STABILITY OF MAIZE CROPPING SYSTEMS: A CASE STUDY IN WESTERN MEXICO
Provedor de dados: 31
Autores: Jourdain,   Damien; Scopel,   Eric; Affholder,   Francois.
This paper examines the economics of introducing conservation tillage into maize cropping systems in the state of Jalisco, in the western part of Mexico. A stochastic cost-benefit analysis (SCBA) of introducing conservation tillage in two contrasting agro-climatic zones in the four main maize management systems in the area was carried out. The SCBA takes into account the effects of conservation tillage on average returns and fully evaluates its potential risk-reducing aspect. The SCBA results were then used for a stochastic dominance analysis to evaluate farmers' incentives, characterized by their aversion to risk. The analysis reveals that although conservation tillage is economically viable, cash-constrained farmers, especially in the dry areas, may not...
Tipo: Working or Discussion Paper
Palavras-chave: Mexico; Jalisco; Plant production; Production factors; Cropping systems; Conservation tillage; Innovation adoption; Input output analysis; Economic analysis; Small farms; Productivity Analysis.
Ano: 2001
URL: http://purl.umn.edu/46549

Farmer Preferences for Milpa Diversity and Genetically Modified Maize in Mexico:  A Latent Class Approach
Provedor de dados: 31
Autores: Birol,   Ekin; Villalba,   Eric Rayn; Smale,   Melinda.
Maize, the second most globally important staple crop after wheat, originated in Mexico, where it is typically grown as part of a set of associated crops and practices called the milpa system. This ancient mode of production is practiced today in ways that vary by cultural context and agro-environment. Milpas generate private economic value, in terms of food security, diet quality and livelihoods, for the two-million farm households who manage them. Furthermore, milpas generate public economic value by conserving agrobiodiversity, especially that of maize landraces, which have the potential to contribute unique traits needed by plant breeders for future crop improvement. In this way, milpas contribute to global food security in maize. However, the...
Tipo: Working or Discussion Paper
Palavras-chave: Mexico; Maize; Genetically modified crops; Conservation; Crop Production/Industries.
Ano: 2007
URL: http://purl.umn.edu/42373

Community Pressure and Clean Technology in the Informal Sector: An Econometric Analysis of the Adoption of Propane by Traditional Mexican Brickmakers
Provedor de dados: 31
Autores: Blackman,   Allen; Bannister,   Geoffrey J.
In many developing countries the informal sector, comprised of low-technology unlicensed micro-enterprises, is a major source of pollution. Environmental management in this sector is exceptionally challenging. Though clean technologies offer a means of mitigating the problem, to our knowledge there has been no rigorous empirical research on why informal (or even small-scale) firms do and do not adopt them. As a first step towards filling this gap, this paper presents the results of an econometric analysis of the diffusion of propane among informal 'traditional' brickmakers in Cd. Juárez, Mexico--a leading source of air pollution owing to their reliance on cheap, highly polluting fuels such as used tires and scrap wood. The two key policy implications of...
Tipo: Working or Discussion Paper
Palavras-chave: Environment; Community pressure; Clean technology; Informal sector; Technology adoption; Brickmaking; Mexico; Environmental Economics and Policy; O17; O22; O33; Q25; C25; L61.
Ano: 1998
URL: http://purl.umn.edu/10529

ALBERTA’S EXPORT EXPERIENCE UNDER FREE TRADE AGREEMENTS: 1988 - 2007
Provedor de dados: 31
Autores: Mirus,   Rolf; Tanerguclu,   Hande.
The international involvement of Alberta-based businesses covers trade in goods, trade in services, and Foreign Direct Investment (FDI), both inward and outward. Increasingly FDI is linked to trade in goods and services. Indeed, the export of services like consulting or construction engineering tends to involve the setting up of supporting facilities abroad (outward FDI), and exports of goods frequently necessitate the provision of maintenance services in their wake, either across the border or through an office abroad. Data on outward FDI by Alberta-based firms are not available, nor are data on exports of services by province of origin. Therefore an analysis of what has been happening to Alberta’s international commercial relations is of necessity...
Tipo: Report
Palavras-chave: Alberta; NAFTA; FTA; Free trade agreement; Free trade; Imports; Exports; Mexico; United States; Israel; Chile; Costa Rica; Energy sector; FDI; Investment; International Relations/Trade; Political Economy; Public Economics; Resource /Energy Economics and Policy.
Ano: 2008
URL: http://purl.umn.edu/60431

Mexico Grapefruit Production, Utilization, and Trade
Provedor de dados: 31
Autores: Guci,   Ledia.
This report provides production, utilization and trade data regarding Mexico’s grapefruit industry and an in-depth look into the Mexico’s share growth for both fresh and processed products.
Tipo: Report
Palavras-chave: Mexico; Grapefruit; Production; Trade; Agribusiness; International Relations/Trade.
Ano: 2006
URL: http://purl.umn.edu/36838

CONSUMPTION INSURANCE AND VULNERABILITY TO POVERTY: A SYNTHESIS OF THE EVIDENCE FROM BANGLADESH, ETHIOPIA, MALI, MEXICO, AND RUSSIA
Provedor de dados: 31
Autores: Skoufias,   Emmanuel; Quisumbing,   Agnes R.
This paper synthesizes the results of five studies using household panel data from Bangladesh, Ethiopia, Mali, Mexico and Russia, which examine the extent to which households are able through formal and/or informal arrangements to insure their consumption from specific economic shocks and fluctuations in their real income. Building on the recent literature of consumption smoothing and risk sharing, the degree of consumption insurance is defined by the degree to which the growth rate of household consumption covaries with the growth rate of household income. All the cases studies show that food consumption is better insured than nonfood consumption from idiosyncratic shocks. Adjustments in nonfood consumption appear to act as a mechanism for partially...
Tipo: Working or Discussion Paper
Palavras-chave: Bangladesh; Consumption; Ethiopia; Income; Mali; Mexico; Poverty; Risk-sharing; Russia; Vulnerability; Food Security and Poverty.
Ano: 2003
URL: http://purl.umn.edu/16424

IDENTIFYING APPROPRIATE GERMPLASM FOR PARTICIPATORY BREEDING: AN EXAMPLE FROM THE CENTRAL VALLEYS OF OAXACA, MEXICO
Provedor de dados: 31
Autores: Bellon,   Mauricio R.; Smale,   Melinda; Aguirre,   Alfonso; Taba,   Suketoshi; Aragon,   Flavio; Diaz,   Jaime; Castro,   Humberto.
Identifying the appropriate germplasm to be improved is a key component of any participatory breeding effort because of its implications for impacts on social welfare and genetic diversity. This paper describes a method developed to select a subset of 17 populations for a participatory breeding project from a set of 152 maize landraces. The larger set of landraces was collected in order to characterize, for conservation purposes, the maize diversity present in the Central Valleys of Oaxaca, Mexico. The method combines data representing the perspectives of both men and women members of farm households and those of genetic resources specialists, including professional plant breeders, gene bank managers, and social scientists. The different perspectives...
Tipo: Working or Discussion Paper
Palavras-chave: Mexico; Oaxaca; Maize; Zea mays; Land race; Germplasm conservation; Plant breeding; Selecting; Innovation adoption; Social welfare; Welfare economics; On farm research; Participatory research; Farm Management.
Ano: 2000
URL: http://purl.umn.edu/46524

Irrigation management transfer in Mexico:  A strategy to achieve irrigation district sustainability
Provedor de dados: 31
Autores: Johnson,   Sam H., III.
Describes the process of transfer of irrigation districts in Mexico from public ownership to joint management, where responsibility for irrigation O&amp;M is shared between the public irrigation agency and water user associations. It evaluates the sustainability of transferred systems and discusses needed changes.
Tipo: Report
Palavras-chave: Irrigation management; Privatization; Participatory management; Agricultural production; Sustainability; Private sector; Public sector; Economic aspects; Water users' associations; Investment; Agricultural policy; Irrigated farming; Water law; User charges; Land ownership; Mexico; Agribusiness; Agricultural and Food Policy; Agricultural Finance; Community/Rural/Urban Development; Crop Production/Industries; Food Consumption/Nutrition/Food Safety; Institutional and Behavioral Economics; Land Economics/Use; Marketing; Production Economics.
Ano: 1997
URL: http://purl.umn.edu/52799

Appellation of Origin Status and Economic Development: A Case Study of the Mezcal Industry
Provedor de dados: 31
Autores: Trejo-Pech,   Carlos Omar; Lopez-Reyna,   Carmen; House,   Lisa; Messina,   William A., Jr.
Mezcal is an alcoholic beverage produced only in selected regions of Mexico under appellation of origin status from the Word Intellectual Property Organization. While it has been produced in Mexico for many centuries, mezcal’s appellation of origin was only granted in 1995. Therefore efforts to produce and market it as a premium product have a relatively short history. This case study examines developments in the production and marketing of this unique product, and the activities of the marketing cooperative El Tecuán in Guerrero State in this process.
Tipo: Journal Article
Palavras-chave: Mezcal; Mexico; Appellation; Marketing; Cooperative; Community/Rural/Urban Development; Marketing.
Ano: 2010
URL: http://purl.umn.edu/93346

NAFTA AND U.S.-MEXICAN BEEF TRADE: LONG-RUN IMPLICATIONS FOR CHANGES IN TRADE FLOWS FROM TECHNOLOGY TRANSFERS
Provedor de dados: 31
Autores: Melton,   Bryan E.; Huffman,   Wallace E.
This study examines potential long-term impacts on the U.S. and Mexican beef industries of the reduction in trade barriers under NAFTA and likely associated international technology transfers (of beef cattle, feeding methods, and meat packing) and foreign capital investments.  The beef industry is represented as four subsectors: cow-calf production, post-weaning beef production, meat packing, and leather production.  The analysis is accomplished through a multi-sector model of the U.S. and Mexican beef industries, estimation of key parameters, and simulation of long-run outcomes under three alternative scenarios.  Our results show that Mexico will dramatically expand the size of its cow herd.  The expanded supply and lower post-slaughter processing cost in...
Tipo: Working or Discussion Paper
Palavras-chave: North American Free Trade Agreement; Beef industry; Meat packing; Technology transfer; Tariffs; United States; Mexico; International Relations/Trade; Research and Development/Tech Change/Emerging Technologies.
Ano: 1997
URL: http://purl.umn.edu/18256

Assets, Activities and Income Generation in Rural Mexico: Factoring in Social and Public Capital
Provedor de dados: 31
Autores: Winters,   Paul C.; Davis,   Benjamin; Corral,   Leonardo.
In recent years, there has been increasing emphasis in the rural development literature on the multiple income-generating activities undertaken by rural households and the importance of assets in determining the capacity to undertake these activities.  Controlling for endogeneity choice and applying Lee's generalization of Amemiya's two-step estimator to a simultaneous equation model, household returns to assets from multiple activities are explored for the Mexico ejido sector. To incorporate the multiple variables representing social and public capital into the analysis, factor analysis is used. The results indicate that the asset position of the household has a significant effect on household participation in income generating activities and returns to...
Tipo: Working or Discussion Paper
Palavras-chave: Livelihoods; Mexico; Social capital; Public capital; Agricultural households; Censored regression; Community/Rural/Urban Development; Consumer/Household Economics; Labor and Human Capital.
Ano: 2001
URL: http://purl.umn.edu/12898

The distributional effects of NAFTA in Mexico: evidence from a panel of municipalities
Provedor de dados: 31
Autores: Baylis,   Katherine R.; Garduno-Rivera,   Rafael; Piras,   Gianfranco.
This paper studies the regional distribution of the benefits from trade in Mexico after NAFTA. Specifically, we ask whether or not NAFTA has increased the concentration of economic activity in Mexico. Unlike previous work which uses state-level data, we identify the effect of NAFTA on economic activity at the municipal level allowing us to observe detailed growth patterns across space. Further, to explicitly identify the effect of the trade agreement, we compare results for growth in traded and non-traded sectors. Given the spatial nature of these data, we make explicit use of spatial econometrics methods. We find that NAFTA caused the wealthy regions nearest to the border to grow faster than others, increasing regional disparity. Second, we find that...
Tipo: Conference Paper or Presentation
Palavras-chave: Regional Disparities; Trade Liberalization; Agglomeration Economies; Economic Growth; Mexico; Transport Cost; Spatial econometrics; Community/Rural/Urban Development; International Development; International Relations/Trade.
Ano: 2009
URL: http://purl.umn.edu/49463

FAMILY AND COMMUNITY NETWORKS IN MEXICO-U.S. MIGRATION
Provedor de dados: 31
Autores: Winters,   Paul C.; de Janvry,   Alain; Sadoulet,   Elisabeth.
A household's decision to send migrants is based on information the household has on the expected returns and the costs of migration.  Information on migration flows from both family migrant networks and community migrant networks. Direct assistance - in the form of money, housing, transportation, and food - is often provided to migrants by these networks, thus reducing the costs of migration.  Using data from a national survey of rural Mexican households, we show the importance of networks in both the decision to migrate and the level of migration. We find that community and family networks are substitutes in the production of information and assistance suggesting that, once migration is well established in a community, family networks become less...
Tipo: Working or Discussion Paper
Palavras-chave: Migration; Networks; Mexico; Consumer/Household Economics; Labor and Human Capital.
Ano: 1999
URL: http://purl.umn.edu/12907

PROCESSED FOOD TRADE AND FOREIGN DIRECT INVESTMENT UNDER NAFTA
Provedor de dados: 31
Autores: Koo,   Won W.; Mattson,   Jeremy W.
Trade in processed food products is rapidly growing.  Trade with Canada and Mexico has especially been growing since free trade agreements have been implemented.  The U.S. presence in the processed food industry in other countries through foreign direct investment (FDI) is also large and has been expanding.  The relationship between trade and FDI is uncertain and subject to much debate.  Japan and Canada are the largest importers of processed foods from the United States, followed by Mexico and Korea.  Canada is the leading exporter of food products to the United States, followed by France, Mexico, and Italy.  Canada and Mexico have, in recent years, become increasingly important trading partners in processed foods.  Results from this study do not...
Tipo: Working or Discussion Paper
Palavras-chave: Trade; Processed foods; Foreign direct investment; Canada; Mexico; International Relations/Trade.
Ano: 2002
URL: http://purl.umn.edu/23566

Poverty and environmental degradation under trade liberalization: searching for second-best policy options.
Provedor de dados: 31
Autores: Pascual,   Unai; Martinez-Espineira,   Roberto.
Forest based agricultural systems in the tropics are being opened up to international trade at an unprecedented rate. This is the case of tropical agriculture in Mexico under the North American Free Trade Agreement (NAFTA), which is also having significant impacts on the decentralized land use decisions of small-scale farmers and on the natural resource base on which they depend. This paper develops a bioeconomic model of a typical forest-land based farming system that is integrated with the non-farm labour sector, as typically found in tropical regions. The data used to generate the simulations were gathered in two communities of Yucatan (Mexico) in 1998-2000. Through a systemdynamics framework, the agro-ecological and farming economic subsystems are...
Tipo: Journal Article
Palavras-chave: Rural povery; Soil degradation; Slash-and-burn; Land-use model; Liberalization; Mexico; Environmental Economics and Policy; International Relations/Trade; Q12; Q23; D13; I3.
Ano: 2006
URL: http://purl.umn.edu/7992

IMPACTS OF AGRICULTURAL RESEARCH ON POVERTY: FINDINGS OF AN INTEGRATED ECONOMIC AND SOCIAL ANALYSIS
Provedor de dados: 31
Autores: Meinzen-Dick,   Ruth Suseela; Adato,   Michelle; Haddad,   Lawrence James; Hazell,   Peter B.R.
The extent to which agricultural research has reduced poverty has become an increasing concern of policymakers, donors, and researchers. Until recently, poverty reduction was a secondary goal of agricultural research. The primary focus was on increasing food supplies and reducing food prices, a strategy that was successful in increasing the yields of important food staples. When increased productivity is combined with increased agricultural employment, lower food prices, and increased off-farm employment, agricultural research can be credited with significant reductions in rural poverty. However, these benefits do not necessarily materialize, and thus it is essential to understand how agricultural technologies influence and are influenced by the diverse...
Tipo: Working or Discussion Paper
Palavras-chave: Poverty; Agricultural research; Sustainable livelihoods; Vulnerability; Agricultural extension; Bangladesh; China; India; Mexico; Kenya; Zimbabwe; Research and Development/Tech Change/Emerging Technologies.
Ano: 2003
URL: http://purl.umn.edu/16088

Determining the Feasibility of Yellow Corn Production in Mexico
Provedor de dados: 31
Autores: Mejia,   Maria; Peel,   Derrell S.
Mexico produces large quantities of white corn for human consumption. Yellow corn production, mostly used for feed, has increased lately. Driving factors include higher domestic demand (growing livestock industry) and greater international demand (ethanol industry). This study uses enterprise budgeting to determine the feasibility of producing yellow corn in Mexico.
Tipo: Conference Paper or Presentation
Palavras-chave: Yellow corn; White corn; Mexico; Production Economics.
Ano: 2009
URL: http://purl.umn.edu/46741

Farmer Organization, Collective Action and Market Access in Meso-America
Provedor de dados: 31
Autores: Hellin,   Jonathan; Lundy,   Mark; Meijer,   Madelon.
The global agricultural economy is changing. Commodity prices are declining, and producers increasingly supply complex value chains. There is growing interest in how farmers can benefit from emerging market opportunities. Farmers are encouraged to produce high value crops and engage in value-adding activities such as agro-processing. Farmer organization and collective action are often seen as key factors in enhancing farmers’ access to markets. Often too little attention is directed at a) the most appropriate types of organization, b) whether the public and/or private sector is best placed to support their formation, and c) the conditions necessary for ensuring their economic viability. This paper reports on research in Mexico and Central America that...
Tipo: Journal Article
Palavras-chave: Smallholder farmers; Maize; High value agricultural products; Mexico; Central America; Business development services; Value chains; Pro-poor growth; Agribusiness.
Ano: 2007
URL: http://purl.umn.edu/47907

Program Participation under Means-Testing and Self-Selection Targeting Methods
Provedor de dados: 31
Autores: Coady,   David P.; Parker,   Susan W.
Using data that enables us to distinguish between the different components of program participation (i.e., knowledge, application, and acceptance), we investigate the determinants of household behavior and program implementation in a social safety-net program that combines administrative and self-selection targeting methods. High undercoverage of eligible households primarily reflects lack of knowledge and binding budget constraints in poor areas. High leakage to ineligible households reflects the combination of their high levels of knowledge, application, and acceptance. Lowering undercoverage will require greater program awareness among the poor living in nonpoor areas and this is likely to come at the expense of substantial leakage to the nonpoor unless...
Tipo: Working or Discussion Paper
Palavras-chave: Means testing; Targeting performance; Mexico; Labor and Human Capital.
Ano: 2005
URL: http://purl.umn.edu/59593

Effective Marketing of Hass Avocados: The Impacts of Changing Trade Policy and Promotion/Information Programs
Provedor de dados: 31
Autores: Carman,   Hoy F.; Sexton,   Richard J.
www.ifama.org
Tipo: Journal Article
Palavras-chave: Avocado; Promotion; Mexico; Agribusiness; Agricultural and Food Policy; Demand and Price Analysis; Financial Economics; Food Consumption/Nutrition/Food Safety; Production Economics.
Ano: 2011
URL: http://purl.umn.edu/117600

Land Cover in a Managed Forest Ecosystem: Mexican Shade Coffee
Provedor de dados: 31
Autores: Blackman,   Allen; Albers,   Heidi J.; Sartorio,   Beatriz Avalos; Crooks,   Lisa.
Managed forest ecosystems-agroforestry systems in which crops such as coffee and bananas are planted side-by-side with woody perennials-are being touted as a means of safeguarding forests along with the ecological services they provide. Yet we know little about the determinants of land cover in such systems, information needed to design effective forest conservation policies. This paper presents a first-ever spatial regression analysis of land cover in a managed forest ecosystem-a shade coffee region of coastal Mexico. Using high-resolution land cover data derived from aerial photographs, along with data on the institutional, geophysical, socioeconomic, and agronomic characteristics of the study area, we find that plots in close proximity to urban centers...
Tipo: Working or Discussion Paper
Palavras-chave: Deforestation; Managed forest ecosystem; Agroforestry; Shade-grown coffee; Mexico; Spatial econometrics; Land cover; Resource /Energy Economics and Policy; O13; Q15; Q23.
Ano: 2003
URL: http://purl.umn.edu/10493

Impact assessment of irrigation management transfer in the Alto Rio Lerma Irrigation District, Mexico
Provedor de dados: 31
Autores: Kloezen,   Wim H.; Garces-Restrepo,   Carlos; Johnson,   Sam H., III.
Tests the hypothesis that, in general, irrigation management transfer has positive impacts on operation performance, managerial accountability, O&amp;M budgeting and expenditures, costs of water to farmers, and agricultural and economic productivity in the Alto Rio Lerma Irrigation District in Mexico. Evaluates the potential of the Mexican IMT process as a model for other countries.
Tipo: Report
Palavras-chave: Irrigation management; Privatization; Assessment; Economic aspects; Legal aspects; Data collection; Water rights; Water allocation; Water distribution; Groundwater; Financing; Maintenance; Operations; Agricultural production; Water users' associations; Farmer participation; Mexico; Alto Rio Lerma Irrigation District; Agricultural and Food Policy; Community/Rural/Urban Development; Crop Production/Industries; Farm Management; Resource /Energy Economics and Policy.
Ano: 1997
URL: http://purl.umn.edu/61110

Deforestation and Shade Coffee in Oaxaca, Mexico: Key Research Findings
Provedor de dados: 31
Autores: Blackman,   Allen; Albers,   Heidi J.; Avalos-Sartorio,   Beatriz; Crooks,   Lisa.
More than three-quarters of Mexico's coffee is grown on small plots shaded by the existing forest. Because they preserve forest cover, shade coffee farms provide vital ecological services including harboring biodiversity and preventing soil erosion. Unfortunately, tree cover in Mexico's shade coffee areas is increasingly being cleared to make way for subsistence agriculture, a direct result of the unprecedented decline of international coffee prices over the past decade. This paper summarizes the key findings of a three-year study of deforestation in Oaxaca, one of Mexico's prime regions for growing shade coffee. First, we find that deforestation during the 1990s was significant. Second, the loss of tree cover can likely be slowed by promoting...
Tipo: Working or Discussion Paper
Palavras-chave: Deforestation; Agroforestry; Shade-grown coffee; Mexico; Land cover; Resource /Energy Economics and Policy; O13; Q15; Q23.
Ano: 2005
URL: http://purl.umn.edu/10799

Forest Conservation and Slippage: Evidence from Mexico's National Payments for Ecosystem Services Program
Provedor de dados: 31
Autores: Alix-Garcia,   Jennifer Marie; Shapiro,   Elizabeth N.; Sims,   Katharine R.E.
Incentive-based programs to reduce deforestation are expected to play an increasingly important role in global efforts to protect ecosystems and sequester carbon but their environmental effectiveness is not clear. We investigate program effectiveness and slippage in the context of Mexico's national payments for hydrological services program, which pays private and communal landowners to maintain forest cover on enrolled lands. To measure program impacts, we use matched controls drawn from the program applicant pool to establish counterfactual deforestation rates in the absence of payments. We find statistically significant but small to moderate avoided deforestation impacts. To examine slippage of deforestation to nonenrolled lands, we develop a model of...
Tipo: Working or Discussion Paper
Palavras-chave: Payments for environmental services; Payments for ecosystem services; Program evaluation; Slippage; Leakage; Incentive-based mechanisms; Mexico; Land use; Deforestation; Environmental Economics and Policy; Q12; Q24; Q57; R14; O13.
Ano: 2010
URL: http://purl.umn.edu/93045

The relationship between trade and price volatility in the Mexican and US maize markets
Provedor de dados: 31
Autores: Araujo-Enciso,   Sergio Rene.
The supply of maize in the Mexican market depends to a large extent from the US imports which represent a large share of the domestic consumption. Furthermore imports exhibit a seasonal pattern, and peaks are often found close to low levels of domestic production and stocks. The present research suggests that there is a link between imports and prices volatility. Below a threshold value, imports and volatility are not related, but beyond the threshold it is volatility the variable driving imports. From the results one can argue that imports have served as a measure to stabilize prices when the domestic supply is scarce.
Tipo: Presentation
Palavras-chave: Volatility; Maize; Imports; Mexico; Risk and Uncertainty; Q11; Q17.
Ano: 2012
URL: http://purl.umn.edu/122544

Economic and livelihood impacts of maize research in hill regions in Mexico and Nepal: Including a method for collecting and analyzing spatial data using Google Earth
Provedor de dados: 31
Autores: La Rovere,   Roberto; Mathema,   Sudarshan; Dixon,   John; Aquino-Mercado,   Pedro; Gurung,   Kamala; Hodson,   Dave P.; Flores Velasquez,   Dagoberto.
Tipo: Report
Palavras-chave: Economic impact; Livelihood Impacts; Maize; Hill Regions; Mexico; Nepal; Spatial Analysis; Google EarthTM; Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies.
Ano: 2009
URL: http://purl.umn.edu/56090

Muddling Through while Environmental Regulatory Capacity Evolves: What Role for Voluntary Agreements?
Provedor de dados: 31
Autores: Blackman,   Allen; Sisto,   Nicholas.
The city of Leon, Guanajuato, is Mexico's leather goods capital and a notorious environmental hotspot. Over the past two decades, four high-profile voluntary agreements aimed at controlling pollution from Leon's tanneries have yielded few concrete results. To understand why, this paper reconstructs the history of these initiatives, along with that of local environmental regulatory capacity. Juxtaposing these two timelines suggests that the voluntary pollution control agreements were both motivated by-and undermined by-gaps in the legal, institutional, physical, and civic infrastructures needed to make regulation effective. Our analysis offers a concrete definition of environmental regulatory capacity, provides insights into how it evolves, and demonstrates...
Tipo: Working or Discussion Paper
Palavras-chave: Environment; Voluntary agreement; Regulatory capacity; Latin America; Mexico; Environmental Economics and Policy; Q53; Q56; Q58; O13; O54.
Ano: 2005
URL: http://purl.umn.edu/10570

MEASURING THE EFFECT OF INCREASED HORTICULTURAL IMPORTS: AN APPLICATION TO WINTER VEGETABLES
Provedor de dados: 31
Autores: Haley,   Stephen L.
This report describes and applies a methodology to measure the impact of increased horticultural imports on U.S. vegetable producers. The methodology is applied to a hypothetical surge in winter vegetable imports. The paper describes how Florida winter vegetables could be affected by both short-term and long-term changes in import availabilities.
Tipo: Working or Discussion Paper
Palavras-chave: Florida; Imports; Mexico; Trade model; Winter vegetables; Crop Production/Industries; International Relations/Trade.
Ano: 1997
URL: http://purl.umn.edu/51208

The Effect of Protection and Exchange Rate Policies on Agricultural Trade: Implications for Argentina, Brazil, and Mexico
Provedor de dados: 31
Autores: Krissoff,   Barry; Ballenger,   Nicole.
The impacts of reducing both agricultural and nonagricultural protection on the agricultural sector are assessed with emphasis placed on Argentina, Brazil, and Mexico. By modeling simultaneously all goods sectors of the economy in a multi-country framework, we evaluate the importance of (1) the relative rates of protection between sectors and (2) exchange rate adjustments that follow trade liberalization in a world of floating rates. We find substantial improvements in net agricultural trade for Argentina and Brazil, particularly following a multilateral trade and exchange rate liberalization. Additionally, the value of gross domestic product improves for all three countries following multilateral liberalization suggesting that these countries experience...
Tipo: Working or Discussion Paper
Palavras-chave: Trade liberalization; Protection; Exchange rates; Simulation model; Argentina. Brazil; Mexico; International Relations/Trade.
Ano: 1987
URL: http://purl.umn.edu/51820

Clean Technological Change in Developing-Country Industrial Clusters: Mexican Leather Tanning
Provedor de dados: 31
Autores: Blackman,   Allen; Kildegaard,   Arne.
In many developing country cities, clusters of small and medium enterprises create severe pollution problems. Because conventional regulatory approaches are typically ineffective in such situations, policy responses have increasingly focused on promoting voluntary clean technological change. Yet the data and analysis needed to guide such efforts are scarce. This paper uses original firm-level survey data on a cluster of small- and medium-scale leather tanneries in Leon, Guanajuato -Mexico's leather capital-to econometrically identify the factors that drive the adoption of two clean tanning technologies. Using a multivariate probit model to estimate a system of seemingly unrelated regressions, we find-in contrast to conventional wisdom-that neither firm...
Tipo: Working or Discussion Paper
Palavras-chave: Clean technology; Developing country; Small and medium enterprises; Mexico; Multivariate probit; Research and Development/Tech Change/Emerging Technologies.
Ano: 2004
URL: http://purl.umn.edu/10545

ON- AND OFF-FARM LABOR DECISIONS BY SLASH-AND-BURN FARMERS IN YUCATAN (MEXICO)
Provedor de dados: 31
Autores: Pascual,   Unai; Barbier,   Edward B.
The availability of basic assets influences peasants’ economic behavior, their livelihood diversification strategies and their responses to land degradation. In addition, when pressed by economic hardships households can also expected to work more than better off ones. Whether this implies more or less on- or off-farm labor supply is an empirical question. This in turn can have an asymmetric effect on poverty traps and the extent of forest clearing under slash-and-burn farming. This paper examines the determinants of labor allocation among forest based shifting cultivating households in two communities from Yucatan (Mexico). The effects of wage rates and structural socio-economic factors are tested for both farming household heads and other family members...
Tipo: Working or Discussion Paper
Palavras-chave: Deforestation; Shifting cultivation; Livelihood diversification; Off-farm labor supply; Mexico; Consumer/Household Economics; Labor and Human Capital.
Ano: 2005
URL: http://purl.umn.edu/31926

Parasites in feces of the endemic rattlesnake, Crotalus triseriatus (Serpentes: Viperidae), from Mexican highlands
Provedor de dados: 103
Autores: Soria-Díaz,Leroy; Rábago-Castro,Jaime Luis; Domínguez-Vega,Hublester; Gómez-Ortiz,Yuriana; Manjarrez,Javier; Garrido-Olvera,Lorena.
ABSTRACT There are few studies about parasitic infections in Crotalus triseriatus (Wagler, 1830), an endemic rattlesnake from the highlands of central Mexico. This species occupies several habitats, from conserved forested regions to heavily impacted landscapes. To increase the parasitological knowledge of this reptile species without impacting populations, we obtained fecal samples of 16 rattlesnakes between 2012 and 2014 from Toluca Valley, Mexico. By using flotation technique, we found oocysts of Eimeria sp. and eggs of Capillariidae sp. The most frequent parasite was Eimeria sp. (62.5%). This study provides the first records of occurrence of parasites in reptilian feces from Mexico. Our results may be important for wildlife conservation purposes, for...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Coccidia; Mexico; Nematoda; Reptile; Urban wildlife.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702019000100503

Lamotheoxyuris ackerti n. gen., n. comb. (Nematoda: Heteroxynematidae) parasite of Neotoma spp. (Rodentia: Muridae)
Provedor de dados: 97
Autores: FALCÓN-ORDAZ,JORGE; FERNÁNDEZ,JESÚS A; GARCÍA-PRIETO,LUIS.
On the basis of the revision of the type material of Aspiculuris ackerti Kruidenier &amp;amp; Mehra, 1959, and new specimens collected from Neotoma nelsoni Goldman, 1905 (Rodentia: Cricetidae), in Veracruz, Mexico, we herein to which A. ackerti is transferred as Lamotheoxyuris ackerti This new genus differs from all other genera included in 1) mouth surrounded by six lips; 2) extension of lateral alae describe a new genus (Lamotheoxyuris n. gen.), (Kruidener &amp;amp; Mehra, 1959) n. gen., n. comb. Heteroxynematinae by the following main traits: reduced; and 3) lack of caudal alae.
Tipo: Journal article
Palavras-chave: Aspiculuris ackerti; Mexico; Nematoda; Rodentia; USA.
Ano: 2010
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2010000200007

Mysoria affinis (Herrich-Schäffer): morphological variation and synonymy (Lepidoptera, Hesperiidae, Pyrrhopyginae)
Provedor de dados: 104
Autores: Warren,Andrew D.; Mielke,Olaf H. H.
Mysoria wilsoni H.A. Freeman, 1969, is established as a new junior synonym of Mysoria affinis (Herrich-Schäffer, 1869). A lectotype for Pyrrhopyga [sic] affinis Herrich-Schäffer, 1869 is designated.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Guatemala; Mexico; Neotropical; Seasonality; Type specimens.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752004000200025

Synonymic notes on North and Central American Lerodea Scudder and Corticea Evans (Lepidoptera, Hesperiidae, Hesperiinae)
Provedor de dados: 104
Autores: Warren,Andrew D.; Mielke,Olaf H. H.
Lerodea dysaules Godman, 1900 is confirmed as a synonym of Lerodea arabus (W. H. Edwards, 1882). A lectotype for Lerodea dysaules is designated. Corticea similea (Bell, 1942), comb. nov. is removed from Lerodea Scudder, 1872.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Arizona; Texas; Mexico; Neotropical; Variation.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752005000100030

Solanaceae composition, pollination and seed dispersal syndromes in Mexican mountain cloud forest
Provedor de dados: 39
Autores: Albuquerque,Lidiamar Barbosa; Velázquez,Alejandro; Mayorga-Saucedo,Rafel.
In this work we hypothesised that Solanaceae species composition and pollination and seed dispersal syndromes change according to the degree of disturbance. Hence, the aim of this study is to analyze how the species composition of Solanaceae changes along disturbance gradients of mountain cloud forest, and to establish how Solanaceae pollination and seed dispersal syndromes vary along the same gradients. The study concentrates on the mountain cloud forests in Hidalgo, Mexico. Solanaceae species collection was carried out along transects, laid out alongside paths and secondary roads. Pollination and seed dispersal syndromes for all species were recorded based on floral and fruit morphological traits. From the 500 sample units surveyed, 392 contained 25...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Forest disturbance; Ornithochory; Chiropterochory; Melittophily; Mexico.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062006000300010

Palynomorph assemblages of the Cuayuca Formation (Paleogene), Puebla, southern Mexico. Part 1: trilete spores, monolete spores and gymnosperm pollen
Provedor de dados: 41
Autores: Ramírez-Arriaga,Elia; Martínez-Hernández,Enrique; Prámparo,Mercedes B.
This publication presents the systematics of monolete and trilete spores, and polyplicate, inaperturate and bisaccate pollen grains recovered from outcrops of the Cuayuca Formation, State of Puebla, southern Mexico. Species belonging to the following genera are described and illustrated: Cicatricosisporites, Deltoidospora, Foveotriletes, Leptolepidites, Lusatisporis, Retitriletes, Stereigranisporis, Verrucingulatisporites, Polypodiisporites, Pinuspollenites, Pityosporites, Ephedripites , and Cupressacites . Pteridophytes and bryophytes spores constitute 13.5% of the assemblages and gymnosperms 7.3%. Angiosperms, to be discussed on later papers, dominate the assemblage.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Palynology; Systematic descriptions; Tertiary; Cuayuca Formation; Paleogene; Mexico.
Ano: 2005
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0002-70142005000300005

Oligocene Scorpion and insects (Plecoptera and Coleoptera) from the Los Ahuehuetes Locality, Puebla, Mexico
Provedor de dados: 41
Autores: Cifuentes-Ruiz,Paulina; Vega,Francisco J.; Cevallos-Ferriz,Sergio R.S.; González-Soriano,Enrique; Zaragoza-Caballero,Santiago; Garibayromero,Luis.
A scorpion prosoma, a plecopteran nymph, Euperlida parvicercifera Cifuentes-Ruiz gen. et sp. nov., and the elytra of an adult beetle (Coleoptera) are described from the Oligocene Coatzingo Formation, Puebla, Mexico. Specimens were found at the Los Ahuehuetes locality, Puebla, from where numerous plant remains have been previously described. A lacustrine paleoenvironment for these sediments is confirmed based on habitat of recent Plecoptera. This report represents the first record of Oligocene continental arthropods from Central Mexico, and the first for a fossil Plecoptera in this country. It is the first record for a Nearctic extinct genus of Perlidae.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Scorpionida; Insecta; Oligocene; Puebla; Mexico.
Ano: 2007
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0002-70142007000400003

New data on the Late Cretaceous lizard Dicothodon bajaensis (Squamata, Borioteiioidea) from Baja California, Mexico reveals an unusual tooth replacement pattern in squamates
Provedor de dados: 42
Autores: CHAVARRÍA-ARELLANO,MARÍA LUISA; SIMÕES,TIAGO R.; MONTELLANO-BALLESTEROS,MARISOL.
Abstract Borioteiioids comprise an extinct family of squamates that inhabited the Northern Hemisphere during the Cretaceous and were characterized by varying patterns of tooth replacement and dental morphology. Understanding the evolution of these tooth replacement patterns has, however, been largely hampered by an extremely fragmentary fossil record. Here we present new information on Dicothodon bajaensisfrom the Campanian of Baja California (Mexico), so far known only from isolated teeth and jaw fragments. Among abundant new materials there are ten maxillae and five dentaries belonging to distinct ontogenetic stages. Whereas juveniles display active tooth replacement, older specimens show no evidence of replacement. Dicothodon bajaensis is therefore...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Campanian; Dental morphology; Mexico; North America; Squamata; Tooth replacement.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000602781

Isolation and identification of main mastitis pathogens in Mexico
Provedor de dados: 45
Autores: Castañeda Vázquez,H.; Jäger,S.; Wolter,W.; Zschöck,M.; Castañeda Vazquez,M.A.; El-Sayed,A.
The present work is a large epidemiological study aiming to detect the prevalence of subclinical mastitis and to investigate the major udder pathogens in Jalisco State, western Mexico. For this purpose, 2205 dairy cows, representing 33 Mexican dairy herds, were involved. Of 2205 cows, 752 mastitic animals were diagnosed and only 2,979 milk samples could be obtained for further investigation. All 2979 milk samples were subjected to California Mastitis Test (CMT) to differentiate clinical cases from subclinical ones where 1996 samples (67 %) reacted positively. Of these, 1087 samples (54.5%) came from cows suffering from clinical cases of mastitis. Bacteriological identification of the causative agents revealed the presence of a major group of pathogens...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine mastitis; Corynebact spp.; Mexico; S.aureus; S.agalactiae.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352013000200012

Karyotype description of Pomacea patula catemacensis (Caenogastropoda, Ampullariidae), with an assessment of the taxonomic status of Pomacea patula
Provedor de dados: 47
Autores: Diupotex-Chong,María Esther; Cazzaniga,Néstor J.; Hernández-Santoyo,Alejandra; Betancourt-Rule,José Miguel.
Mitotic chromosomes of the freshwater snail Pomacea patula catemacensis (Baker 1922) were analyzed on gill tissue of specimens from the type locality (Lake Catemaco, Mexico). The diploid number of chromosomes is 2n = 26, including nine metacentric and four submetacentric pairs; therefore, the fundamental number is FN = 52. No sex chromosomes could be identified. The same chromosome number and morphology were already reported for P. flagellata, i.e., the other species of the genus living in Mexico. The basic haploid number for family Ampullariidae was reported to be n = 14 in the literature; so, its reduction to n = 13 is probably an apomorphy of the Mexican Pomacea snails. Lanistes bolteni, from Egypt, also shows n = 13, but its karyotype is much more...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apple snails; Chromosomes; Taxonomy; Phylogeny; Mexico.
Ano: 2004
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452004000300004

Karyological and electrophoretic differences between Pomacea flagellata and P. patula catemacensis: Caenogastropoda: Ampullariidae
Provedor de dados: 47
Autores: Diupotex-Chong,María Esther; Cazzaniga,Néstor J; Uribe-Alcocer,Manuel.
The widespread Mexican apple snail Pomacea flagellata (Say 1827) and the strictly endemic "tegogolo" P. patula catemacensis (Baker 1922) (restricted to Lake Catemaco), are the only known American Ampullariidae that have haploid complements n=13. Pomacea patula catemacensis has suffered a critical reduction in abundance due to immoderate fishing for human consumption. Chromosome slides were obtained from colchicine-injected Pomacea snails collected from nine locations along the coastal zone of the Gulf of Mexico, including Lake Catemaco, for use in principal component analysis (PCA). Total proteins in foot homogenates were analyzed through isoelectric focusing (IEF) and native-PAGE electrophoresis on polyacrylamide gels. The chromosome number 2n=26 was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apple snails; Endangered species; Isoelectric focusing; Karyotype; Mexico; Native-PAGE electrophoresis.
Ano: 2007
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452007000300002

An alternative species taxonomy of the birds of Mexico
Provedor de dados: 49
Autores: Navarro-Sigüenza,Adolfo G.; Peterson,A. Townsend.
Extensive debate has surrounded the application of alternative species concepts in Ornithology. The biological species concept (BSC) and phylogenetic species concept (PSC) have typically been set in opposition, with extensive debate on the relative merits of each. An alternative is the evolutionary species concept (ESC), which offers a perspective similar to that of the PSC, yet with several significant differences. To date, no major avifauna has been examined and compared among taxonomic viewpoints. Herein, we develop an alternative phylogenetic/evolutionary species taxonomy to the current BSC treatment for the more than 1000 bird species of Mexico. A total of 135 biological species was divided to produce a total of 323 phylogenetic/evolutionary species,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Species concepts; Avifauna; Mexico.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032004000200013

Inventory of benthic marine and estuarine algae and Cyanobacteria for Tabasco, México
Provedor de dados: 49
Autores: Mendoza-González,Angela Catalina; Mateo-Cid,Luz Elena; García-López,Deisy Yazmin.
Abstract Studies of benthic marine and estuarine algae as well as Cyanobacteria are in their early stages in the littoral of the state of Tabasco. Sixty seven taxa of seaweeds are currently known from Tabasco. The inventory of these organisms was made based on samples obtained in six localities, three of them in marine and three in estuarine environments. We found 147 species and subspecific taxa with Rhodophyta having the greatest number with 84, followed by Chlorophyta 44, and finally Phaeophyceae 19. In addition, the 26 species of Cyanobacteria collected are recorded for the first time for the coast of Tabasco since there are no previous reports. The presence of 115 species of benthic marine and estuarine algae is reported for the first time for...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tabasco; Mexico; New records; Marine; Estuarine; Algae; Cyanobacteria.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032017000400303

Notes on Vampyressa thyone (Chiroptera: Phyllostomidae): distribution, genetics and hypopigmentation
Provedor de dados: 49
Autores: Hernández-Canchola,Giovani; Gómez-Jiménez,Yire A.; Hernández-Chávez,Iván; Lucero-Verdugo,Sara Carolina; León-Paniagua,Livia.
Abstract: The frugivorous bats of the genus Vampyressa include five neotropical species, and some of them are considered relatively rare and uncommonly encountered. The northernmost distribution of this genus is in Mexico where only one species, the monotypic Vampyressa thyone, is found. Here, we report the Northwesternmost record for this species, extending its distribution range to the state of Guerrero, Mexico. This record extends the limit of the species distribution by more than 153 km. We also compared this specimens with other V. thyone, and using mitochondrial cytochrome-b sequences we detected three geographic clades within the species. The new Mexican specimen represent the most divergent cytochrome-b sequence within V. thyone. We recommend a...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Mexico; Northern little yellow-eared bat; Pigmentation disorder; Range extension; Stenodermatinae.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032019000200501

Four seasons abundance changes of Zalophus californianus californianus (Lesson 1828), Allen, 1880, in the Gulf of California, Mexico
Provedor de dados: 52
Autores: Maravilla-Chávez,M. Octavio; Zavala-González,Alfredo; Ortega-Rubio,Alfredo.
This paper describes for the first time the relative abundance, population structure and numeric variation of California sea lions in the Gulf of California, Mexico, during four different seasons. The relative abundance estimates varied from the highest 17,162 sea lions in July of 1990 (summer) to a minimum 7,470 in February of 1992 (winter), representing a reduction of 10,000 sea lions. Hypotheses about the migration of part of the population to the Pacific Ocean were compared and discussed against their residency inside the Gulf, and seasonal dispersion of individuals along this inner sea.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zalophus californianus californianus; Seasonal variations; Relative abundance; Migration; Gulf of California; Mexico.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000100013

Changes in lizard abundance on protected versus grazed desert scrub in Baja California Sur, Mexico
Provedor de dados: 52
Autores: Romero-Schmidt,Heidi L; Ortega-Rubio,Alfredo.
The changes in abundance of three species of lizards were determined and compared between grazed and ungrazed desert scrub near La Paz, in the Cape Region, Baja California Sur, Mexico, from April 1992 to March 1993. A total of 54 censuses were taken of these species over two transect systems, one inside and one outside livestock enclosure. Urosaurus nigricaudus were negatively affected by the grazing activities, but Uta stansburiana exhibited an apparently positive effect by such activities. Cnemidophorus hyperythrus population apparently showed no effect by the livestock grazing. The paper discusses the possible relationship between the microhabitat specificity of each species and their population number individuals response.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Baja California Sur; Lizard abundance; Livestock grazing; Mexico.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131999000200007

Clostridium difficile outbreak caused by NAP1/BI/027 strain and non-027 strains in a Mexican hospital
Provedor de dados: 55
Autores: Morfin-Otero,Rayo; Garza-Gonzalez,Elvira; Aguirre-Diaz,Sara A.; Escobedo-Sanchez,Rodrigo; Esparza-Ahumada,Sergio; Perez-Gomez,Hector R.; Petersen-Morfin,Santiago; Gonzalez-Diaz,Esteban; Martinez-Melendez,Adrian; Rodriguez-Noriega,Eduardo.
Abstract  Background Clostridium difficile infections caused by the NAP1/B1/027 strain are more severe, difficult to treat, and frequently associated with relapses.  Methods A case–control study was designed to examine a C. difficileinfection (CDI) outbreak over a 12-month period in a Mexican hospital. The diagnosis of toxigenic CDI was confirmed by real-time polymerase chain reaction, PCR (Cepheid Xpert C. difficile/Epi).  Results During the study period, 288 adult patients were evaluated and 79 (27.4%) patients had confirmed CDI (PCR positive). C. difficilestrain NAP1/B1/027 was identified in 31 (39%) of the patients with confirmed CDI (240 controls were included). Significant risk factors for CDI included any underlying disease (p &lt; 0.001), prior...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Clostridium difficile; Outbreak; 027 strain; Mexico.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702016000100008

Monetary costs and hospital burden associated with the management of invasive fungal infections in Mexico: a multicenter study
Provedor de dados: 55
Autores: Corzo-León,Dora Edith; Perales-Martínez,Diana; Martin-Onraet,Alexandra; Rivera-Martínez,Norma; Camacho-Ortiz,Adrian; Villanueva-Lozano,Hiram.
ABSTRACT  Background: Invasive fungal infections (IFIs) affect &gt;1.5 million people per year. Nevertheless, IFIs are usually neglected and underdiagnosed. IFIs should be considered as a public-health problem and major actions should be taken to tackle them and their associated costs. Aim To report the incidence of IFIs in four Mexican hospitals, to describe the economic cost associated with IFIs therapy and the impact of adverse events such as acute kidney injury (AKI), liver damage (LD), and ICU stay.  Methods: This was a retrospective, transversal study carried-out in four Mexican hospitals. All IFIs occurring during 2016 were included. Incidence rates and estimation of antifungal therapy's expenditure for one year were calculated. Adjustments for...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fungal infections; Antifungal therapy; Cost; Acute kidney injury; Incidence rate; Mexico.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702018000500360

Human papillomavirus infection in women from Tlaxcala, Mexico
Provedor de dados: 58
Autores: Velázquez-Márquez,Noé; Jiménez-Aranda,Lucio Jaime; Sánchez-Alonso,Patricia; Santos-López,Gerardo; Reyes-Leyva,Julio; Vallejo-Ruiz,Verónica.
Cervical cancer is an important health problem in women living in developing countries. Infection with some genotypes of human papillomavirus (HPV) is the most important risk factor associated with cervical cancer. Little information exists about HPV genotype distribution in rural and suburban regions of Mexico. Thus, we determined the prevalence of HPV genotypes in women from Tlaxcala, one of the poorest states in central Mexico, and we evaluated age infection prevalence and risk factors associated with cervical neoplasm. A cross-sectional study was conducted in 236 women seeking gynecological care at the Mexican Institute for Social Security in Tlaxcala, Mexico. Cervical scrapings were diagnosed as normal, low-grade, and high-grade squamous...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Epidemiology; Human papillomavirus; Mexico; PCR; Squamous intraepithelial lesions.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000300027

Identification of co-infection by rotavirus and parvovirus in dogs with gastroenteritis in Mexico
Provedor de dados: 58
Autores: Ortega,Ariadna Flores; Martínez-Castañeda,José Simón; Bautista-Gómez,Linda G.; Muñoz,Raúl Fajardo; Hernández,Israel Quijano.
ABSTRACT This is the first report on circulating canine rotavirus in Mexico. Fifty samples from dogs with gastroenteritis were analyzed used polymerase chain reaction and reverse transcription polymerase chain reaction in order to identify parvovirus and rotavirus, respectively; 7% of dogs were infected with rotavirus exclusively, while 14% were co-infected with both rotavirus and parvovirus; clinical signs in co-infected dogs were more severe.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dog; Mexico; Parvovirus; Rotavirus.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822017000400769

Epidemiology of oral HPV in the oral mucosa in women without signs of oral disease from Yucatan, Mexico
Provedor de dados: 58
Autores: Gonzalez-Losa,María del Refugio; Barrera,Ernesto Soria; Herrera-Pech,Verónica; Conde-Ferráez,Laura; Puerto-Solís,Marylin; Ayora-Talavera,Guadalupe.
High-risk human papillomaviruses (HR-HPV) are considered necessary for the development of cervical cancer. Furthermore, there is no doubt that some types of oral squamous cell carcinoma are associated with HR-HPV. The epidemiology of oral HPV infections in healthy subjects remains unclear due to a lack of knowledge. The objective of this study was to investigate the epidemiology of human papillomavirus infections of the oral mucosa without pathology. A cross-sectional study was performed; samples from 390 women seeking prenatal care, Pap smears, family planning or gynecological diseases were studied. Oral cells were collected by direct swab sampling. Information regarding sociodemographic status, sexual behavior, infectious diseases, contraceptive history...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Papillomavirus; Oral mucosa; HPV13; Mexico.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000100301