2000
DOI: 10.1006/jare.2000.0658
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Feeding behaviour of Tympanoctomys barrerae, a rodent specialized in consuming Atriplex leaves

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Cited by 16 publications
(11 citation statements)
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“…With respect to another important family of South American rodents, the Octodontidae (octodont rodents), studies of habitat selection are limited to a single species, Tympanoctomys barrerae (Ojeda et al, 1996), whose high degree of trophic specialisation (Giannoni et al, 2000) impedes comparison with closely-related species (Ojeda et al, 1999). Finally, most studies of South American arid-zone rodents have been carried out in the central Monte, where mean annual precipitation is about 325 mm , and practically none of them in the most extremely arid zones, where annual precipitation is below 100 mm.…”
Section: Introductionmentioning
confidence: 99%
“…With respect to another important family of South American rodents, the Octodontidae (octodont rodents), studies of habitat selection are limited to a single species, Tympanoctomys barrerae (Ojeda et al, 1996), whose high degree of trophic specialisation (Giannoni et al, 2000) impedes comparison with closely-related species (Ojeda et al, 1999). Finally, most studies of South American arid-zone rodents have been carried out in the central Monte, where mean annual precipitation is about 325 mm , and practically none of them in the most extremely arid zones, where annual precipitation is below 100 mm.…”
Section: Introductionmentioning
confidence: 99%
“…Even so, when considering species identity there is a clear evenness and distinctiveness of desert assemblages with rare species such as T. barrerae and S. delicatus, which only occur in salt flats and have specific behavioural, morphological and physiological adaptations to that type of habitat (Diaz and Ojeda, 1999;Giannoni et al, 2000;Lanzone et al, 2005). These attributes of distinctiveness and evenness of the Monte Desert highlights the priority of conservation of desert ecosystems (Mares, 1992;Ojeda et al, 2000).…”
Section: Question 1: How Does Small Mammal Diversity Vary Between Habmentioning
confidence: 96%
“…Para alimentarse, T. barrerae limpia la superficie de hojas del género Atriplex mediante un manojo de cerdas rígidas ubicado detrás de los incisivos superiores para remover el exceso de sal en la epidermis vegetal y así reducir su ingesta(Mares et al, 1997a; Berman, 2003). Estudios comportamentales sobre el proceso de limpieza de las hojas han mostrado que el tiempo de "pelado" de las hojas de Atriplex es menor que el registrado para las especies convergentes D. microps y P. obesus(Giannoni et al, 2000). Esta diferencia en el tiempo de "pelado" podría estar explicada por el uso de sus cerdas ubicadas detrás de los incisivos, que actuarían como un "segundo par" de incisivos inferiores(Giannoni et al, 2000).…”
unclassified
“…Estudios comportamentales sobre el proceso de limpieza de las hojas han mostrado que el tiempo de "pelado" de las hojas de Atriplex es menor que el registrado para las especies convergentes D. microps y P. obesus(Giannoni et al, 2000). Esta diferencia en el tiempo de "pelado" podría estar explicada por el uso de sus cerdas ubicadas detrás de los incisivos, que actuarían como un "segundo par" de incisivos inferiores(Giannoni et al, 2000). Sobre la dieta y comportamiento de forrajeo de las otras especies del género no hay estudios específicos, aunque probablemente el mayor porcentaje de su alimen-…”
unclassified