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Aridity and grazing as convergent selective forces: an experiment with an Arid Chaco bunchgrass
Quiroga, Raul Emiliano; Golluscio, Rodolfo Angel; Blanco, Lisandro Javier; Fernandez, Roberto J. (Wiley, 2010-10)It has been proposed that aridity and grazing are convergent selective forces: each one selects for traits conferring resistance to both. However, this conceptual model has not yet been experimentally validated. The aim ... -
Climatic niche shift in the amphitropical disjunct grass Trichloris crinita
Quiroga, Raul Emiliano; Premoli, Andrea Cecilia; Fernandez, Roberto J. (2018-06)Plant species disjunctions have attracted the interest of ecologists for decades. We investigated Trichloris crinita, a native C4 perennial grass with disjunct distribution between subtropical regions of North and South ... -
Differential water-use strategies and drought resistance in Trichloris crinita plants from contrasting aridity origins
Quiroga, Raul Emiliano; Fernandez, Roberto J.; Golluscio, Rodolfo Angel; Blanco, Lisandro Javier (2013-08)In arid environments, water availability is the main limiting factor for primary production, and it is expected that not only drought-resistance, but also plant strategies for soil water use will be under natural selection. ... -
Niche dynamics in amphitropical desert disjunct plants: Seeking for ecological and species‐specific influences
Quiroga, Raul Emiliano; Premoli, Andrea Cecilia; Fernandez, Roberto J. (Wiley, 2020-11)Numerous studies have assessed whether species niches are conserved in geographically separated regions. However, most of them were performed on invasive species, with the limitation that such species have likely not yet ... -
Patterns and controls of carbon dioxide and water vapor fluxes in a dry forest of central Argentina
Garcia, Alfredo Gabriel; Di Bella, Carlos Marcelo; Houspanossian, Javier; Magliano, Patricio Nicolás; Jobbagy Gampel, Esteban Gabriel; Posse Beaulieu, Gabriela; Fernandez, Roberto J.; Nosetto, Marcelo Daniel (Elsevier, 2017-12)Covering 16% of global land surface, dry forests play a key role in the global carbon budget. The Southern Hemisphere still preserves a high proportion of its native dry forest cover, but deforestation rates have increased ... -
Progress in creating a joint research agenda that allows networked long-term socio-ecological research in southern South America : addressing crucial technological and human capacity gaps limiting its application in Chile and Argentina
Anderson, Christopher B.; Celis-Diez, Juan L.; Bond, Barbara J.; Martinez Pastur, Guillermo José; Little, Christian; Armesto, Juan J.; Ghersa, Claudio Marco; Austin, Amy Theresa; Schlichter, Tomas Miguel; Lara, Antonio; Carmona, Martin; Chaneton, Enrique José; Gutierrez, Julio R.; Rozzi, Ricardo; Vanderbilt, Kristin; Oyarce, Guillermo; Fernandez, Roberto J. (2012-08)Since 1980, more than 40 countries have implemented long-term ecological research (LTER) programs, which have shown their power to affect advances in basic science to understand the natural world at meaningful temporal and ... -
Soil physical changes after conversion of woodlands to pastures in dry Chaco rangelands (Argentina)
Magliano, Patricio Nicolás; Fernandez, Roberto J.; Florio, Eva Laura; Murray, Francisco; Jobbagy Gampel, Esteban Gabriel (2017-03)The conversion of dry woody rangelands into pastures can alter key soil physical properties that regulate ecosystem water circulation and storage. Based on three paired stands of native woodlands and pastures established ...