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Mostrando ítems 41-60 de 205
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Coping or adapting strategies? The importance of distinguishing between climatic shift and drought events for proper management of the pastoral systems in Northern Patagonia
(Springer, 2024-02)Drier conditions have been observed in Northern Patagonia, Argentina, in the last decades, affecting the pastoralism production system. In this context, two laws were promoted to foster goat and sheep production. This ... -
Deciphering the transcriptomic regulation of heat stress responses in Nothofagus pumilio
(Plos One, 2021-03-30)Global warming is predicted to exert negative impacts on plant growth due to the damaging effect of high temperatures on plant physiology. Revealing the genetic architecture underlying the heat stress response is therefore ... -
Dendrogeomorphic reconstruction of flash floods in the Patagonian Andes
(Elsevier, 2015-01-01)Flash floods represent a significant natural hazard in small mountainous catchments of the Patagonian Andes and have repeatedly caused loss to life and infrastructure. At the same time, however, documentary records of past ... -
Detection of swainsonine-producing endophytes in Patagonian Astragalus species
(Elsevier, 2019-12)Swainsonine has been identified as the toxin in legumes belonging to the genera Astragalus and Oxytropis throughout the world including China, North America, and South America. Several South American Astragalus species ... -
Development and evaluation of a species-specific PCR assay for the detection of Brucella ovis infection in rams
(Elsevier, 2010)Brucella ovis infection is a major cause of epididymitis and infertility in rams, resulting in reproductive failure and significant economic losses worldwide. The goal of this study was to develop a PCR test targeting ... -
Different drought‑adaptive capacity of a native Patagonian tree species (Nothofagus pumilio) resulting from local adaptation
(Springer, 2021-06)The resistance of different genotypes to abiotic stress may be due to genetic effects and/or to phenotypic plasticity allowing them to acclimate to variable conditions. The contribution of one or the other mechanism ... -
Differential response of natural regeneration to silvopastoral use intensity in mixed forests of northern Patagonia, Argentina
(Elsevier, 2022-07-07)Silvopastoral use (combined livestock and forestry) is widely distributed in South America’s native forests. Without medium to long-term planning, this activity may affect the population dynamics of the dominant canopy ... -
Direct and indirect effects of climate and vegetation on sheep production across Patagonian rangelands (Argentina)
(Elsevier, 2021-05)Extensive sheep production is an important agricultural industry in the Patagonia region of Argentina, where the most important production metric is the effective lambing rate of the sheep (L%). Climate factors can affect ... -
Distribución natural de Nothofagus alpina y Nothofagus obliqua (nothofagaceae) en Argentina, dos especies de primera importancia forestal de los bosques templados norpatagónicos
(Sociedad Argentina de Botánica, 2011-06)Conocer la distribución natural de cualquier especie es esencial para poder planificar su conservación o uso. El Raulí [Nothofagus alpina (Poepp. & Endl.) Oerst. = Nothofagus nervosa (Phil.) Dim. et Mil.] y el Roble Pellín ... -
Does competition management improve the ecophysiological response to water shortage of mixed woodland species of North Patagonia?
(Elsevier, 2023-08)Globally, the increasing forests vulnerability and drought-induced forest mortality events, extended to a larger scale, may have the potential to rapidly alter forest functioning and the provision of ecosystem services. ... -
Droughts drive outbreak dynamics of an invasive forest insect on an exotic host
(Elsevier, 2019-02)Insect outbreaks are among the most important biotic disturbances in forest ecosystems and can exert immense economic and ecological impacts. Understanding the spatio-temporal patterns of eruptive insects can provide ... -
Drylands becoming drier: evidence from North Patagonia, Argentina
(Springer, 2023-12)In the last decades, Northern Patagonia (Argentina) has shown linear trends to drier conditions in distinct hydrological variables. Therefore, North Patagonia climate changes were studied using streamfow data of Neuquén ... -
Ecosystem services and disservices associated with pastoral systems from Patagonia, Argentina –A review
(EDP Sciences, 2021-11-11)Pastoral systems worldwide secure rural livelihoods in the harshest environments on Earth. Their low productivity per area unit or head makes them the subject of much criticism with regard to their environmental impact, ... -
Ecosystem services to support environmental and socially sustainable decision-making
(Asociación Argentina de Ecología, 2017-04)The theory of ecosystem services (ES) needs to be operationalized to contribute to practices leading to sustainable use of ecosystems, which includes solving trade-offs between private and public benefits and incorporating ... -
Ectomycorrhizal fungal communities in Nothofagus nervosa [Rauli] : a comparison between domesticated and naturally established specimens in a native forest of Patagonia, Argentina
(2015-12)Due to its overexploitation during the past century, Nothofagus nervosa is currently included in conservation and domestication programs, in which ectomycorrhizas play an important role. We aimed to describe the abundance ... -
Ecuaciones para la estimación de biomasa aérea y volumen de fuste de algunas especies leñosas nativas en el valle del río Foyel, NO de la Patagonia argentina = Equations for above-ground biomass and stem volume of some native woody species growing in Foyel valley, NW Patagonia Argentina
(Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, 2009-08-31)Los bosques y matorrales dominados por ñire (Nothofagus antarctica) se encuentran entre los ecosistemas de mayor distribución latitudinal dentro de los bosques andino patagónicos, conformando gran parte del ecotono ... -
Efecto de la fertilización con distintas concentraciones de nitrógeno y potasio en el crecimiento de plantines de ciprés de la cordillera (Austrocedrus chilensis) en vivero
(Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, 2018-12)El nitrógeno es uno de los nutrientes más influyentes sobre el crecimiento de los plantines en un vivero. Sin embargo, la concentración de cada nutriente carece de importancia si no se la analiza en relación al conjunto ... -
Efecto de los gradientes de pastoreo ovino sobre la vegetación y el suelo en Península Valdés, Patagonia Argentina
(2016-08)La introducción de ganado doméstico provocó modificaciones en la vegetación y en el suelo de la Patagonia extra-andina. Estos cambios alteraron procesos ecosistémicos, aumentaron la desertificación y causaron pérdida de ... -
Efecto del manejo silvicultural sobre la regeneración de un bosque de Nothofagus dombeyi, N. alpina y N. obliqua en la Reserva Nacional Lanín (Argentina) = Effect of silvicultural management on the Nothofagus dombeyi, N. alpina and N. obliqua forest regeneration within the Lanín Natural Reserve (Argentina)
(Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, 2015)Las prácticas silviculturales constituyen un importante agente de disturbio y su inadecuada implementación afecta la sostenibilidad de los bosques naturales. En la Reserva Nacional Lanín, el manejo silvicultural del bosque ... -
Efecto del nivel de alimentación sobre la producción de lana de dos líneas genéticas de ovinos
(Asociación Argentina de Producción Animal, 2010-07)A los fines de estudiar si ovinos genéticamente más productivos son también más eficientes en la conversión de alimento en lana y si esa eficiencia se mantiene en diferentes ambientes nutricionales se realizó un ensayo con ...