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Mostrando ítems 1-8 de 8
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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 ... -
Defoliation intensity and simulated grazing strategy effects on three C4 rangeland bunchgrasses
Quiroga, Raul Emiliano; Blanco, Lisandro Javier; Namur, Pedro Ramón (2018-01)Defoliation intensity and timing are two important factors determining plants response to grazing. These factors can be managed by adjusting stocking rate and applying a grazing strategy. In a 6-yr clipping experiment ... -
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. ... -
Genetic structure and diversity of the amphitropical disjunct grass Leptochloa crinita (formerly Trichloris crinita) and implications for restoration
Quiroga, Raul Emiliano; Mathiasen, Paula; Quiroga, M. Paula; Fernandez, Roberto J.; Díaz, Dayana G.; Premoli, Andrea Cecilia (Asociación Argentina de Ecología, 2025-08)Amphitropical species have disjunct distributions south and north of the equator. That is the case of Leptochloa crinita, a perennial grass found in dry and warm regions of South and North America, and recommended for ... -
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 ... -
Productividad forrajera y estabilidad productiva de poblaciones de Leptochloa crinita (ex Trichloris crinita) evaluadas en cuatro ambientes del centro-noroeste de Argentina
Quiroga, Raul Emiliano; Namur, Pedro Ramón; Ruiz, Maria De Los Angeles; Chilo, Gladys Natividad (Asociación Argentina de Producción Animal, 2022)En el centro-noroeste de Argentina (C-NOA) existen pocas opciones de especies forrajeras en el mercado de semillas para implantar pasturas en secano, y las pocas que hay son exóticas. En este contexto, surgió el interés ... -
Seed weight and trade-offs: an experiment in false rhodes grasses under different aridity conditions
Marinoni, Lorena del Rosario; Zabala, Juan Marcelo; Quiroga, Raul Emiliano; Richard, Geraldina Alicia; Pensiero, José Francisco (MDPI, 2022)The false Rhodes grasses [Leptochloa crinita (Lag.) P.M. Peterson and N.W. Snow and Leptochloa pluriflora (E. Fourn.) P.M. Peterson and N.W. Snow] are considered valuable native forage resources for arid and semiarid ... -
Vulnerability of mineral-associated soil organic carbon to climate across global drylands
Díaz-Martínez, Paloma; Maestre, Fernando Tomás; Moreno, Eduardo; Delgado-Baquerizo, Manuel; Eldridge, David J.; Ahumada, Rodrigo José; Aramayo, Maria Valeria Del Luján; Bran, Donaldo Eduardo; Ferrante, Daniela; Gaitan, Juan Jose; Oliva, Gabriel Esteban; Quiroga, Raul Emiliano; Plaza de Carlos, César (Springer Nature, 2024-07)Mineral-associated organic carbon (MAOC) constitutes a major fraction of global soil carbon and is assumed less sensitive to climate than particulate organic carbon (POC) due to protection by minerals. Despite its importance ...