|
|
|
| Registros recuperados: 125 | |
|
| |
|
|
| GARCÍA-DÁVILA,Carmen Rosa; ALCANTÁRA Β.,Fernando; VASQUEZ R.,Elvis; CHUJANDAMA S.,Miquel. |
| Foi estudada a biologia reprodutiva de Macrobrachium brasiliense (Decapoda: Palaemonidae) com base em 2604 indivíduos coletados entre outubro de 1994 e agosto de 1995, em dois igarapés de terra firme da estrada Iquitos-Nauta, Loreto (Amazônia peruana). A proporção sexual fêmea: macho foi de 1,7:1 sendo que as fêmeas foram um pouco mais abundantes que os machos durante todo o período de coleta. M. brasiliense apresentou dimorfismo sexual no comprimento cefalotorácico, sendo as fêmeas ligeiramente menores que os machos. A reprodução foi contínua, com o pico reprodutivo entre abril e julho. A fecundidade variou de 15 a 168 ovos por fêmea, observando-se uma relação significativa entre a fecundidade e o comprimento cefalotorácico e o peso. O volume do ovo não... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Decapoda; Água doce; Reprodução; Amazônia; Peru. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672000000400653 |
| |
|
| |
|
|
| Aldrete,Alfonso N. García. |
| Seven new species of Lachesilla in the group forcepeta, from the Amazon Basin in Brazil, Colombia and Peru, are here described and illustrated: L. amacayacuensis sp. n. (type locality: Colombia, Amazonas, Leticia, Amacayacú); L.bulbosiforceps sp. n. (type locality: Peru, Cuzco); L. cuzcoensis sp. n. (type locality: Peru, Cuzco); L. marabaensis sp. n. (type locality: Brasil, Pará, Marabá, Serra Norte); L. pilosiforceps sp. n. (type locality: Brasil, Pará, Oriximiná, Rio Trombetas); L. pilosipenna sp. n. (type locality: Peru, Cuzco); L. squamiforceps sp. n. (type locality: Colombia, Amazonas, Leticia). The Amazon Basin is the second most rich world area for species of Lachesilla. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brazil; Colombia; Neotropics; Peru; Taxonomy. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672010000400016 |
| |
|
| |
|
| |
|
| |
|
|
| Iannacone O.,José; Alvariño F.,Lorena. |
| Environmental risk assessment (ERA) of terrestrial environments polluted by heavy metals in Peru requires standardized biological organisms, the use of which is simple, practical, sensitive and repeatable, such as seeds of higher plants used in eco-toxicological bioassays. The aim of this research was to evaluate the phytotoxic effects of Cr6+, Hg2+ and Pb2+ as potassium dichromate (K2Cr(2)0(7)), mercury chloride (Cl2Hg) and lead acetate ((CH3C00)2Pb), respectively, on growing roots of four species of higher terrestrial plants: onions (Allium cepa L., Liliaceae), red beets (Beta vulgaris L., Chenopodiaceae), rice (Oriza sativa L., Poaceae) and radishes (Raphanus sativus L., Brassicaceae) at 192 h (8 days) exposure. Bioassays of static sub-lethal toxicity... |
| Tipo: Journal article |
Palavras-chave: Heavy metals; Peru; Seeds; Vascular plants; Seeds; Mining waste; Chromium; Mercury; Lead. |
| Ano: 2005 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0365-28072005000200009 |
| |
|
|
| GALÁN-DE-MERA,ANTONIO; SÁNCHEZ-VEGA,ISIDORO; LINARES-PEREA,ELIANA; CAMPOS,JOSÉ; MONTOYA,JUAN; VICENTE-ORELLANA,JOSÉ A.. |
| ABSTRACT A phytosociological approach to dry forest and cactus communities on the occidental slopes of the Peruvian Andes is presented in base of 164 plots carried out following the Braun-Blanquet method. From them, 52 have been made recently, and the other 112 were taken from the literature. After a multivariate analysis, using a hierarchical clustering and a detendred correspondence analysis, the Acacio-Prosopidetea class (dry forest and cactus communities, developed on soils with some edaphic humidity or precipitations derived from El Niño Current), the Opuntietea sphaericae class (cactus communities of central and southern Peru, on few stabilized rocky or sandy soils) and the Carico-Caesalpinietea class (dry forests of the Peruvian coastal desert,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Acacio-Prosopidetea; Cactus communities; Dry forests; Opuntietea sphaericae; Peru; Phytosociology.. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000200689 |
| |
|
|
| Miranda,J.L.P.S.; Oliveira,C.A.; Mahecha,G.A.B.. |
| Fragmentos da junção uterovaginal de 16 exemplares de fêmeas adultas de peru foram examinados, com o objetivo de determinar as modificações morfométricas e histológicas dos túbulos armazenadores de espermatozoides (SST), durante os períodos de atividade e repouso reprodutivo. Os estudos foram realizados a partir de dissecações do oviduto esquerdo, utilizando-se técnicas histológicas, histoquímica e histométricas de rotina. Essas estruturas originam-se de invaginações do epitélio das pregas da região uterovaginal e apresentam-se tubulosas, simples e não ramificadas, com epitélio formado por células prismáticas estreitas, claras e escuras, com núcleo vesiculoso basal e microvilos apicais. As secreções dessas células apresentaram reações negativas para PAS e... |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Peru; Fêmea; Túbulos armazenadores; Espermatozoide; Morfometria. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352009000100011 |
| |
|
|
| Felippe-Bauer,Maria Luiza; Cáceres,Abraham; Silva,Cristiane Santos da; Valderrama-Bazan,William; Gonzales-Perez,Antero; Costa,Janira Martins. |
| Ten species of Culicoides Latreille are reported for the first time from Peruvian Departments of Amazonas, Cajamarca, Loreto, Madre de Dios, Piura and San Martin. The synonymy and distribution of the species in the New World are given. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ceratopogonidae; Neotropical bloodsucking midges; Culicoides; New records; Peru. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032008000200002 |
| |
|
|
| Gutiérrez,Diego G.. |
| Inkaliabum, a new monotypic genus endemic to valleys and slopes of the Andes of Cuzco (Peru), is described. The species of genus Inkaliabum is a slender scandent subshrub with pinnately veined leaves, lacking latex, with few capitula in terminal and/or axillary capitulescences, widely campanulate involucres, many phyllaries, many florets per capitulum, and disc florets with corollas slightly differentiated into tube and throat, long style branches, and a short pubescent part of the style shaft. The new combination Inkaliabum diehlii, based on Liabum diehllii is established, and the species is illustrated. In addition, a key to the genera of Liabeae from Peru plus Oligactis is provided. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Asteraceae; Endemism; Inkaliabum; Inkaliabum diehlii; Liabeae; Liabum; Peru. |
| Ano: 2010 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722010000200014 |
| |
|
| |
|
| |
|
| |
|
| |
|
|
| Paavola , Jouni; Centre for Climate Change Economics and Policy (CCCEP); Sustainability Research Institute, School of Earth and Environment, University of Leeds; j.paavola@leeds.ac.uk; Healey, John R.; School of Environment, Natural Resources and Geography, Bangor University ; j.healey@bangor.ac.uk; Jones, Julia P.G.; School of Environment, Natural Resources and Geography, Bangor University ; julia.jones@bangor.ac.uk; Baker, Timothy R.; School of Geography, University of Leeds; t.r.baker@leeds.ac.uk. |
| Reduced Emissions from Deforestation and Forest Degradation (REDD+) has received strong support as a major component of future global climate change policy. The financial mechanism of REDD+ is payment for the ecosystem service of carbon sequestration in tropical forests that is expected to create incentives for conservation of forest cover and condition. However, the costs of achieving emissions reduction by these means remain largely unknown. We assess the set-up, implementation, and monitoring costs, i.e., collectively the transaction costs, of six of the first seven REDD+ project designs from the Peruvian Amazon and compare them with established projects in Brazil and Bolivia. The estimated costs vary greatly among the assessed projects from US$0.16 to... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Additionality; Amazon; Peru; REDD+; Set-up implementation and monitoring costs; Transaction costs. |
| Ano: 2013 |
|
| |
|
|
| Arias Schreiber, Milena; Leibniz Center for Tropical Marine Ecology (ZMT), Bremen, Germany; milena@uni-bremen.de; Halliday, Andrew; Freelance Writer and Researcher;. |
| The term "commons" refers to collectively exploited resources and their systems of usage; a synonymous term is common pool resources. Fisheries are typical common pool resources and also one of the most conspicuous examples of unsustainable use of natural resources. We examine one of the few globally important fisheries that is held to be sustainable, the Peruvian anchovy fishery, and considers the extent to which the institutional characteristics of the fishery conform to design principles that are considered prerequisites for long-term, successful, community-based common pool resources. Results showed that greater conformity to the principles was found in the sustainable phase of the fishery, compared to its unsustainable phase. For this case study, the... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Anchovy fishery; Common pool resources; Design principles; Peru; Sustainabilityanchoveta peruana; Recursos comunes; Diseñ O de principios; Perú ; Sostenibilidad. |
| Ano: 2013 |
|
| |
|
|
| Cundill, Georgina N. R.; Rhodes University; gcundill@rides.cl; Fabricius, Christo; Rhodes University; c.fabricius@ru.ac.za; Marti, Neus; Autonomous University; neus@amauta.rcp.net.pe. |
| Complex systems are shaped by cross-scale interactions, nonlinear feedbacks, and uncertainty, among other factors. Transdisciplinary approaches that combine participatory and conventional methods and democratize knowledge to enable diverse inputs, including those from local, informal experts, are essential tools in understanding such systems. The metaphor of a “bridge” to overcome the divide between different disciplines and knowledge systems is often used to advocate for more inclusive approaches. However, there is a shortage of information and consensus on the process, methodologies, and techniques that are appropriate to achieve this. This paper compares two case studies from Peru and South Africa in which community-level assessments... |
| Tipo: Peer-Reviewed Synthesis |
Palavras-chave: Ecological assessment; Community-based assessment; Complexity; Scale; Epistemology; Methodology; Millennium Ecosystem Assessment; Complex systems; Uncertainty; Peru; South Africa; Case studies; Transdisciplinary research. |
| Ano: 2005 |
|
| |
|
|
| Kometter, Roberto F; Universidad Nacional Agraria La Molina; kometter@lamolina01.lamolina.edu.pe; Martinez, Martha; Center for Applied Biodiversity Science, Conservation International; m.martinez@conservation.org; Blundell, Arthur G; EGAT Forest Team, USAID; art.blundell@alum.dartmouth.org; Gullison, Raymond E; Hardner & Gullison Associates; ted@hg-llc.com; Steininger, Marc K; Center for Applied Biodiversity Science, Conservation International; m.steininger@conservation.org; Rice, Richard E; Center for Applied Biodiversity Science, Conservation International; d.rice@conservation.org. |
| Although bigleaf mahogany [Swietenia macrophylla King (Meliaceae)] is the premier timber species of Latin America, its exploitation is unsustainable because of a pattern of local depletion and shifting supply. We surveyed experts on the status of mahogany in Bolivia and Peru, the world's past and present largest exporters. Bolivia no longer has commercially viable mahogany (trees > 60 cm diameter at breast height) across 79% of its range. In Peru, mahogany's range has shrunk by 50%, and, within a decade, a further 28% will be logged out. Approximately 15% of the mahogany range in these two countries is protected, but low densities and illegal logging mean that this overestimates the extent of mahogany under protection. The international community... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Bolivia; Latin America; Peru; Expert survey; Forest conservation; Forest inventories; Forest regeneration; Mahogany; Protected areas; Questionnaire; Range; Sustainable forestry. |
| Ano: 2004 |
|
| |
| Registros recuperados: 125 | |
|
|
|
