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Análisis de la evolución del clima y los pastizales naturales en el noroeste de la provincia de Chubut, Argentina, durante el período 2000-2014: identificación de variables asociadas a la disminución de las existencias ganaderas en la región
Garcia Martinez, Guillermo Carlos; Ciari, Georgina; Gaitan, Juan Jose; Caruso, Cecilia Alejandra; Nagahama, Nicolas; Opazo, Walter Javier; Nakamatsu, Viviana Beatriz; Lloyd, Carlos Eduardo; Antiman Cotut, Camila Rosa; Irisarri, Jorge Gonzalo Nicolás; Escobar, Juan Maria (2017-06)Una elevada proporción del territorio argentino corresponde a tierras secas y una tercera parte de éstas se hallan en la Patagonia. Esta región históricamente ha sufrido procesos de deterioro del pastizal. Generalmente, ... -
Germination requirements of two sheep-preferred grasses (Hordeum comosum and Koeleria vurilochensis var. patagonica) from semiarid Patagonian steppes
Gundel, Pedro Emilio; Irisarri, Jorge Gonzalo Nicolás; Sorzoli, N.S.; Mosso, C.E.; Garcia Martinez, Guillermo Carlos; Golluscio, Rodolfo Angel (Elsevier, 2012-03)Grazing by domestic exotic herbivores on native vegetation in Patagonian steppes has led to the deterioration of forage resources, where grasses are replaced by shrubs, and preferred grasses by non-preferred ones. Therefore, ... -
Trends in ANPP response to temperature in wetland meadows across a subcontinental gradient in Patagonia
Irisarri, Jorge Gonzalo Nicolás; Cipriotti, Pablo Ariel; Texeira, Marcos; Curcio, Matías Hernán (Multidisciplinary Digital Publishing Institute (MDPI), 2022-06-17)Due to ongoing global warming, seasonal patterns of aboveground net primary production (ANPP) may be altered by temperature trends. Of particular interest is the seasonal association between ANPP and temperature at the ... -
Trends of aboveground net primary productivity of Patagonian meadows, the omitted ecosystem in desertification studies
Curcio, Matías Hernán; Irisarri, Jorge Gonzalo Nicolás; Garcia Martinez, Guillermo Carlos; Oesterheld, Martin (MDPI, 2023-05-08)The United Nations defines desertification as the loss of productivity in arid and semiarid environments. The extended steppes of Patagonia harbor small meadows whose compounded area is comparatively small, but their ...