Temas
Mostrando ítems 1-14 de 14
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Archetypal temporal dynamics of arid and semi-arid rangelands
(Elsevier, 2021-03)The way in which temporal dynamics structure ecological systems under the influence of a changing environment has long interested ecologists. Tackling the hierarchical structure of complex temporal patterns is a necessary ... -
Assessing the magnitude of impact of volcanic ash deposits on Merino wool production and fibre traits in the context of a drought in North-west Patagonia, Argentina
(CSIRO Publishing, 2014-02)Environmental variability is a key feature of arid and semiarid rangelands worldwide. Drought is one of the main sources of variation in most extensive livestock production systems in arid environments, with biophysical ... -
Bases para una ley de pastizales de regiones áridas y semiáridas de la Argentina
(Asociación Argentina de Ecología, 2021-08)Los pastizales proveen múltiples servicios ecosistémicos de alto valor para la sociedad, tanto local como globalmente, pero se encuentran amenazados por procesos de degradación, el impacto del cambio climático y modificaciones ... -
Comportamiento hidrológico de un paisaje con diferentes estados del pastizal en la Patagonia árida
(Asociación Argentina de la Ciencia del Suelo, 2023-12)En Patagonia árida, la forma de uso de la tierra más extendida es el pastoreo por ganado doméstico. A pesar de ello, la región carece de un entendimiento acabado sobre la generación de los flujos de escorrentía en áreas ... -
Convergence between satellite information and farmers’ perception of drought in rangelands of North-West Patagonia, Argentina
(Elsevier, 2020-09)Drought is a complex natural hazard with social and environmental implications. Satellite information is increasingly used to support decision-makers in preventing or coping with the negative impacts of drought. The ... -
Evaluación de pastizales patagónicos con imágenes de satélites y de vehículos aéreos no tripulados
(Asociación Argentina de Ecología, 2019-12)La evaluación de pastizales en regiones áridas y semiáridas es una herramienta clave tanto para planificar el manejo ganadero como para realizar diagnósticos ambientales. Si bien hay un consenso sobre la utilidad de dicha ... -
Germination response to water availability in populations of Festuca pallescens along a Patagonian rainfall gradient based on hydrotime model parameters
(Springer Nature, 2021-05)Sensitivity to water availability is a key physiological trait for grassland species located in arid and semiarid environments, where successful germination is closely related to rainfall dynamics. Festuca pallescens ... -
Local adaptation along a sharp rainfall gradient occurs in a native Patagonian grass, Festuca pallescens, regardless of extensive gene flow
(Elsevier, 2020-03)Increasing global aridity combined with changing environmental conditions might cause irreparable alterations in arid and semiarid ecosystems. Knowledge of within-species genetic diversity and adaptive responses, especially ... -
Perspectives on Rangeland Management Education and Research in Argentina
(Society for Range Management, 2011-02)Rangelands account for over two-thirds of Argentina’s land area and contribute uniquely to its biodiversity, agricultural livelihood, and cultural identity. Colossal mountain ranges and regional air mass movements create ... -
Plant species richness and shrub cover attenuate drought effects on ecosystem functioning across Patagonian rangelands
(2014-10-22)Drought is an increasingly common phenomenon in drylands as a consequence of climate change. We used 311 sites across a broad range of environmental conditions in Patagonian rangelands to evaluate how drought severity and ... -
Relationship between NDVI of Patches and Cover Area of Grasses, Shrubs and Bare Soil Components of a Semi-Arid Steppe from North-West Patagonia, Argentina
(MDPI, 2023-02)Distinguishing the contributions of different vegetation cover such as shrubs and grasses components into the primary production in arid and semi-arid rangelands is a key step to understanding changes at a landscape scale. ... -
Rhythm of change of trend-cycles of vegetation dynamics as an early warning indicator for land management
(Elsevier, 2021-07)The use of time series of vegetation indices obtained from satellites has become a highly relevant source of data in studies of land degradation assessment and monitoring. However, information about future vegetation ... -
The application of ecologically intensive principles to the systemic redesign of livestock farms on native grasslands: A case of co-innovation in Rocha, Uruguay
(Elsevier, 2021-06)CONTEXT: Family-run cow-calf farms based on native grasslands exhibit low economic and social sustainability, as reflected in low family incomes and high workloads. Experimental results have shown that pasture–herd interaction ... -
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 ...