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Registros recuperados: 154
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A new, Neotropical species of Acanthocyclops (Copepoda: Cyclopoida: Cyclopidae) Naturalis
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
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Adapting prospective structural analysis to strengthen sustainable management and capacity building in community-based natural resource management contexts Ecology and Society
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’ 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
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Adoption of Clean Leather-Tanning Technologies in Mexico AgEcon
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
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ALBERTA’S EXPORT EXPERIENCE UNDER FREE TRADE AGREEMENTS: 1988 - 2007 AgEcon
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
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ALBERTA’S EXPORT EXPERIENCE UNDER FREE TRADE AGREEMENTS, 1989-2008: TWENTY YEARS OF FREE TRADE AgEcon
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
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American trypanosomiasis and associated risk factors in owned dogs from the major city of Yucatan, Mexico J. Venom. Anim. Toxins incl. Trop. Dis.
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
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An alternative species taxonomy of the birds of Mexico Biota Neotropica
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
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An Overview of Mexico’s Citrus Industry AgEcon
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
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Appellation of Origin Status and Economic Development: A Case Study of the Mezcal Industry AgEcon
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
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Applying Retrospective Demographic Models to Assess Sustainable Use: the Maya Management of Xa’an Palms Ecology and Society
Xa’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 (λ). 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 λ. In this study, we assess whether ecologically sustainable use of xa’an occurs in...
Tipo: Peer-Reviewed Reports Palavras-chave: Ethnoecology; LTRE; Mexico; NTFP; Sabal yapa; Traditional management; Xa&#8217an palm; Yucatan..
Ano: 2005
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Assessing the Vulnerability of Agricultural Households to Macroeconomic Shocks: Evidence from Mexico AgEcon
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
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Assets, Activities and Income Generation in Rural Mexico: Factoring in Social and Public Capital AgEcon
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
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Atributos demográficos y biología reproductiva de Coryphantha cornifera y Stenocactus anfractuosus con fines de conservación. Colegio de Postgraduados
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
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Biochemical diagnosis of mucopolysaccharidosis in a Mexican reference center Genet. Mol. Biol.
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
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Biodiversity and Modernization in Four Coffee-producing Villages of Mexico Ecology and Society
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
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Biological and Ecological Mechanisms Supporting Marine Self-Governance: the Seri Callo de Hacha Fishery in Mexico Ecology and Society
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
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Building ties: social capital network analysis of a forest community in a biosphere reserve in Chiapas, Mexico Ecology and Society
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
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Can scenario-planning support community-based natural resource management? Experiences from three countries in Latin America Ecology and Society
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
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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. Colegio de Postgraduados
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
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Certified with trust and solidarity? Attitude, benefits and challenges of organic farmers in Participatory Guarantee Systems, Cacahoatán, Mexico Organic Eprints
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
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