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Mostrando ítems 536-555 de 563
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Urolitiasis en caprinos del Departamento Empedrado (Corrientes, Argentina)
(Facultad de Ciencias Veterinarias, Universidad Nacional del Nordeste, 2020)La urolitiasis es un trastorno obstructivo total o parcial de las vías urinarias, frecuente en pequeños rumiantes en producción intensiva. En una población de 58 caprinos confinados, se detectaron 8 casos de urolitiasis, ... -
Urolitiasis en pequeños rumiantes
(Facultad de Agronomía y Veterinaria, Universidad Nacional de Río Cuarto, 2020-06)La urolitiasis es una enfermedad del tracto urinario que afecta a ovinos y caprinos siendo más frecuente en producciones intensivas y semi-intensivas. Clínicamente se caracteriza por depresión, letargia, rechinar de dientes, ... -
Use and management of biodiversity by smallholder farmers in semi-arid West Africa
(Elsevier, 2018-09)Strategies that strengthen and use biodiversity are crucial for sustained food production and livelihoods in semiarid West Africa. The objective of this paper was to examine the role of biodiversity in sustaining diverse ... -
Uso del agua y productividad de los bosques nativos e implantados en el NO de la Patagonia : aproximaciones desde la ecohidrología y la ecofisiología
(2011-12)Existe preocupación por el posible uso excesivo de agua de las forestaciones con especies exóticas de rápido crecimiento en comparación con las especies nativas a las cuales reemplazan en la región NO de la Patagonia. ... -
Uso del compost de biosólidos en la formulación de sustratos para la producción industrial de plantas de Nothofagus alpina = Evaluation of an alternative substrate and a differential nutritional dose on the production and final quality of seedlings of Nothofagus alpina in NW Patagonia
(Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, 2013)Uno de los principales problemas para producir plantas forestales industrialmente es disponer de sustrato de buena calidad en cantidad suficiente. El objetivo de este estudio fue evaluar la factibilidad biológica del uso ... -
Variabilidad de la calidad de lanas en la provincia de Río Negro, Argentina
(Ediciones INTA, 2021-04)En la provincia de Río Negro la producción de lana Merino se realiza en diversas condiciones ambientales. A pesar de esta realidad se desconoce la variabilidad de la calidad de lana a escala regional. El objetivo de este ... -
Variability in seedling emergence traits of Patagonian Cypress marginal steppe populations
(Springer, 2014-01)Genetic information on adaptive traits is crucial for prediction of the evolution of natural populations in relation to global climate change. The seedling emergence process together with germination is a key adaptive stage ... -
Variation in carbon and nitrogen concentrations among peatland categories at the global scale
(PLOS, 2022-11-23)Peatlands account for 15 to 30% of the world’s soil carbon (C) stock and are important controls over global nitrogen (N) cycles. However, C and N concentrations are known to vary among peatlands contributing to the uncertainty ... -
Variation of wood density and hydraulic properties of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) clones related to a heat and drought wave in France
(Elsevier, 2009-01)Drought response of three Douglas-fir clones (slow, intermediate and fast growing) inhabiting two different climatic regimes in France was examined.We used the hydraulic conductivity and the percent loss of conductivity ... -
Vegetation responses to variations in climate: A combined ordinary differential equation and sequential Monte Carlo estimation approach
(Elsevier, 2023-03)Vegetation responses to variation in climate are a current research priority in the context of accelerated shifts generated by climate change. However, the interactions between environmental and biological factors still ... -
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 ... -
Vitrified embryo transfer in Merino sheep under extensive conditions
(Brazilian College of Animal Reproduction, 2019-06)The aim was to evaluate pregnancy success after transfer of embryos vitrified in micropipette tips in Merino sheep under extensive conditions. A second objective was to evaluate the influence of embryo stage in such pregnancy ... -
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 can possibly go wrong? The risks of introducing soil microorganisms from Antarctica into South America = ¿Qué puede salir mal? : Los riesgos de introducir microorganismos del suelo de la Antártida en América del Sur
(2015)Endophytic fungi form mutualistic associations with plant roots which can increase plant survival and resistance to stress. Recently, it has been proposed that endophytic fungi from Antarctica should be used to facilitate ... -
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 ... -
What do we talk about when we talk about Social-Ecological Systems? A Literature Review
(2018-08-20)In the last decade, probably in response to global changes and the environmental crisis, the use of the term “social-ecological system” (SES) in scientific literature has grown. This is certainly a sign that the need and ... -
What is hot in tree rings? The wood density of surviving Douglas-firs to the 2003 drought and heat wave
(Elsevier, 2008-08)In a global warming scenario, drought and heat waves like the one that occurred in 2003 in Europe are expected to become more intense and frequent. This extreme climate event strongly affected the hydraulic balance in many ...