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Mostrando ítems 481-493 de 493
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Vegetation structure is as important as climate for explaining ecosystem function across Patagonian rangelands
(2014-11)1. Drylands cover about 41% of Earth’s land surface, and 65% of their area supports domestic livestock that depends on the above-ground net primary productivity (ANPP) of natural vegetation. Thus, understanding how biotic ... -
Vegetative propagation of patagonian cypress, a vulnerable species from the subantarctic forest of South America
(Universidad Austral de Chile, 2009)Increasing risks of loosing forest genetic resources and the need for a sustainable quality wood supply make focusing research efforts on undomesticated tree species necessary. The study of their genetic variation in ... -
Vientiocho años de mejoramiento genético en una majada Merino comparada con una testigo sin selección
(Asociación Argentina de Producción Animal, 2016-12)A los fines de demostrar progreso genético se separaron al azar dos majadas, cada una con 250 ovejas y 10 carneros, a partir de una misma población Merino del norte de la Patagonia argentina. La majada “Testigo” se mantuvo ... -
El vivero forestal de la Estación Experimental Agropecuaria Bariloche
(EEA Bariloche, INTA, 2021-12)El Vivero Forestal del INTA Bariloche produce plantines con fines de investigación y restauración de bosques degradados. También tiene un banco de semillas de especies nativas y produce barbados de álamo para la venta a ... -
Water temperature and microenvironmental factors predict the presence and detection of the snail host of Fasciola hepatica in Andean Patagonia
(Elsevier, 2024-07)The transmission of Fasciola hepatica occurs only where there are -or recently were- aquatic or amphibious snails of the Lymnaeidae family, the intermediate host of this parasite. Direct detection of these snails is ... -
Water-mediated changes in plant–plant and biological soil crust–plant interactions in a temperate forest ecosystem
(Copernicus Publications, 2019-04-09)In the quest to understand how biotic interactions respond to climate change, one area that remains poorly explored is how interactions involving organisms other than vascular plants will respond. However the interactions ... -
Weak trophic links between a crab-spider and the effective pollinators of a rewardless orchid
(2015-01)Sit and wait predators hunting on flowers are considered to be exploiters of plant–pollinator mutualisms. Several studies have shown that plant–pollinator interactions can be highly susceptible to the impact of a third ... -
What do domestic livestock eat in northern Patagonian rangelands?
(CSIRO Publishing, 2013-02)The Patagonian rangelands are dominated by steppes interspersed with meadows (locally called mallines), which are small but permanently humid areas, characterised by high spring–summer quality and productivity of grasses ... -
Where to find structural grade timber: a case study in ponderosa pine based on stand and tree level factors
(Elsevier, 2020-03-01)Using portable acoustic tools, measurements of dynamic modulus of elasticity (Ed) were made in standing ponderosa pine (Pinus ponderosa (Dougl. ex Laws)) trees (n =437) growing in 22 stands encompassing the range of ... -
Yeast and yeast‐like fungi associated with dry indehiscent fruits of Nothofagus nervosa in Patagonia, Argentina
(Oxford Academic Press, 2012-04)Nothofagus nervosa (Raulí) is a native tree species that yields valuable timber. It was overexploited in the past and is currently included in domestication and conservation programs. Several research programs have focused ... -
Yuyos que matan
(Universidad Nacional del Comahue, 2020)Desde principio del siglo pasado se han identificado diferentes plantas tóxicas que afectan al ganado de la región patagónica. Nuevos conocimientos hacen posible mejorar su manejo, para evitar intoxicaciones. -
Zonas genéticas y áreas prioritarias para la conservación de los bosques de lenga en la Patagonia Argentina
(INTA - CIEFAP - CONICET, 2022)Los cambios globales que se están suscitando, tanto climáticos como del uso de los recursos naturales, impactan en la persistencia y dinámica ecológica de los ecosistemas del mundo debido a la gran velocidad con la que ...