Results 71 to 80 of about 3,622 (187)

The impact of local extinction on genetic structure of wild populations of lima beans (Phaseolus lunatus) in the Central Valley of Costa Rica: consequences for the conservation of plant genetic resources

Revista de Biología Tropical, 2008
Plant populations may experience local extinction and at the same time new populations may appear in nearby suitable locations. Species may also colonize the same site on multiple occasions.
Daniel Barrantes, Gabriel Macaya, Luigi Guarino, Jean Pierre Baudoin, Oscar J Rocha   +4 more
doaj  

IDENTIFICACIÓN DE ÁREAS DE ALTA PRIORIDAD PARA LA CONSERVACIÓN IN SITU DE PARIENTES SILVESTRES DE LA PAPA EN EL PERÚ [PDF]

, 2018
13 PáginasLos parientes silvestres de cultivos son fuentes importantes de genes útiles para mejorar las especies cultivadas, especialmente frente a los desafíos mundiales actuales. La conservación in situ se refiere a aquella que se realiza en el entorno
Zorrilla Cisneros, Cinthya, Sotomayor Melo, Diego Alejandro   +1 more
core  

Subsistence hunting shapes the spatial variation of jaguar densities in community‐managed forests

Journal of Zoology, EarlyView.
Jaguars and people can coexist in community‐managed forests, but distance matters. In Guatemala's Maya Biosphere Reserve, jaguar numbers increased markedly in areas harder to reach on foot, yet jaguars were still found near communities, showing that responsibly managed forests can support jaguar populations while allowing people to maintain traditional
L. Perera‐Romero, R. McNab, R. Garcia‐Anleu, J. Polisar, C. Sutherland, D. Thornton   +5 more
wiley   +1 more source

Los jardines botánicos y la crisis de la biodiversidad

Botan‪ical Sciences, 2013
Históricamente, los jardines botánicos se enfocaban sobre especies con interés económico, y no había mención alguna de la conservación hasta mediados del siglo XX. La destrucción de las selvas y bosques, pérdida de biodiversidad y el cambio climático son
Andrew P. Vovides, Carlos Iglesias, Victor Luna, Teodolinda Balcázar   +3 more
doaj   +1 more source

Secadores de maiz

, 2008
Proyecto Perú: Conservación in situ de los cultivos nativos y sus parientes silvestres PER/98/G33Se presenta la tecnología de secador de maíz, pautas para su construcción y utilización, resultados, efectos e ...
Instituto Nacional de Investigación Agraria - INIA
core  

Employing a Hysteresis Approach to Analyze Shifts in Tree Physiological Thresholds in Response to Drought

Plant, Cell &Environment, EarlyView.
ABSTRACT Drought‐induced tree mortality underscores the need for improved physiological models to predict tree responses to water stress. We employed a hysteresis modelling approach analyzing diel water absorption and desorption cycles to understand drought‐induced shifts in physiological thresholds.
Mauro Brum, Annie Deslauriers, Matthew Vadeboncoeur, Tanner Frost, David Moore, Caroline Rodrigues da Silva, Daniel B. Metcalfe, Heidi Asbjornsen   +7 more
wiley   +1 more source

Preliminary genetic evaluation of in situ populations of the Orinoco Crocodile (Crocodylus intermedius) in the Colombian Orinoquía

, 2023
ilustraciones, diagramas, mapasEl Caimán Llanero o Cocodrilo del Orinoco (Crocodylus intermedius) se encuentra críticamente amenazado debido a la caza indiscriminada que sufrió durante el siglo pasado con el fin de satisfacer la empresa curtiembre ...
Castillo Rodríguez, Nicolás
core   +1 more source

Differences in characteristics between naturalized threatened plants and other threatened plants

Conservation Biology, Volume 40, Issue 3, June 2026.
Abstract Many non‐native plant species introduced by humans have become naturalized. At the same time many species are threatened in their native range. However, the number of plant species threatened in their native range that are naturalized elsewhere remains unknown.
Weihan Zhao, Trevor S. Fristoe, Amy J. S. Davis, Wayne Dawson, Franz Essl, Holger Kreft, Jan Pergl, Petr Pyšek, Patrick Weigelt, Marten Winter, Mark van Kleunen   +10 more
wiley   +1 more source

Potato diversity at height: multiple dimensions of farmer-driven in-situ conservation in the Andes

, 2009
In-situ conservation Two types of in-situ conservation of crop genetic resources can be distinguished: farmer-driven and externally driven. The first is subject of this thesis and refers to the persistence of potato genetic resources in areas where ...
de Haan, S., Haan, S., de
core  

Conservación de recursos genéticos de Caña de azúcar (Saccharum spp.) [PDF]

Los recursos genéticos de caña de azúcar constituyen la base del desarrollo de programas de mejoramiento genético y producción de semilla certificada en esta especie. Cuando se habla de conservación de los recursos fitogenéticos, el objetivo es preservar
Morales-Ramos, V., Bello-Bello, J.J., Gómez-Merino, F.C.   +2 more
core   +1 more source