autores 

Autores

Mostrando ítems 21-23 de 23

    • Phylogenetic relationships and intraspecific diversity of a North Patagonian Fescue: evidence of differentiation and interspecific introgression at peripheral populations 

      Lopez, Aldana; Azpilicueta, Maria Marta; Lopez, Dardo Ruben; Siffredi, Guillermo Lorenzo; Marchelli, Paula (2018-03)
      Peripheral sites usually offer suboptimal conditions for species with wide distributions, where expression of phenotypic variability and potential interspecific hybridization might be enhanced. The Patagonian steppe, the ...

    • Provincia de Río Negro 

      Cremona, Maria Victoria; Enriquez, Andrea Soledad; Ayesa, Javier Alejandro; Siffredi, Guillermo Lorenzo; Aramayo, Maria Valeria Del Luján; Izquierdo, Fernanda Celina; Velasco, Virginia; Bran, Donaldo Eduardo (Fundación Ciencia, Educación y Cultura. FECIC, 2019)
      La importante heterogeneidad natural de la Provincia de Río Negro (203.013km2) está dada principalmente por sus gradientes climáticos. La precipitación media anual, influenciada por la presencia de la Cordillera de los ...

    • What do domestic livestock eat in northern Patagonian rangelands? 

      Villagra, Edgar Sebastian; Pelliza, Alicia; Willems, Priscila Mabel; Siffredi, Guillermo Lorenzo; Bonvissuto, Griselda (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 ...