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Abstract:

We analyzed different aspects of the foraging behavior and habitat use for feeding of the capybara (Hydrochoerus hydrochaeris) using carbon stable isotopes (13C/12C) measured in bone collagen and by direct observation. Stable carbon isotope ratio analysis is used to determine the proportion of plant functional types consumed (C3 and C4 photosynthetic patterns). These data were further compared with the distribution of the plant functional types available in the different environments of the study area. There was a high variability in bone isotope values, and although some specimens showed a C4-based diet, data suggested a tendency toward a predominant consumption of C3 plants. The proportion of functional types in the diet of capybaras differed from their availability in the study area indicating a differential use of environments. We obtained similar conclusions by direct observation of capybaras. The high variability in isotope values and foraging behavior of the species may explain its high ecological plasticity in terms of both diet composition and selection of foraging sites. © 2014 Deutsche Gesellschaft für Säugetierkunde.

Registro:

Documento: Artículo
Título:Use of stable carbon isotope ratio for foraging behavior analysis of capybara (Hydrochoerus hydrochaeris) from Esteros del Iberá, Argentina
Autor:Corriale, M.J.; Loponte, D.
Filiación:Grupo de Estudios sobre Biodiversidad en Agroeco., Dept. de Biodiv. y Biología Exp., Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires - IEGEBA, Consejo Nacional de Investigaciones Científicas y Técnicas, Av. Cantilo s/n Ciudad Univ., Pabellón, 4to Piso, Ciudad Autónoma de Buenos Aires, C1428 EHA, Argentina
Instituto Nacional de Antropología y Pensamiento Latinoamericano, Consejo Nacional de Investigaciones Científicas y Técnicas, Ciudad Autónoma de Buenos Aires, Argentina
Palabras clave:Food selection; Functional types; Habitat use; Large herbivores; Wetlands; adaptation; behavioral response; carbon isotope; collagen; environmental response; foraging behavior; phenotypic plasticity; plant community; rodent; stable isotope; Argentina; Argentina; Corrientes; Ibera Wetlands; Hydrochaeris hydrochaeris
Año:2015
Volumen:80
Número:2
Página de inicio:73
Página de fin:80
DOI: http://dx.doi.org/10.1016/j.mambio.2014.12.007
Título revista:Mammalian Biology
ISSN:16165047
CODEN:MBAIC
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_16165047_v80_n2_p73_Corriale

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Citas:

---------- APA ----------
Corriale, M.J. & Loponte, D. (2015) . Use of stable carbon isotope ratio for foraging behavior analysis of capybara (Hydrochoerus hydrochaeris) from Esteros del Iberá, Argentina. Mammalian Biology, 80(2), 73-80.
http://dx.doi.org/10.1016/j.mambio.2014.12.007
---------- CHICAGO ----------
Corriale, M.J., Loponte, D. "Use of stable carbon isotope ratio for foraging behavior analysis of capybara (Hydrochoerus hydrochaeris) from Esteros del Iberá, Argentina" . Mammalian Biology 80, no. 2 (2015) : 73-80.
http://dx.doi.org/10.1016/j.mambio.2014.12.007
---------- MLA ----------
Corriale, M.J., Loponte, D. "Use of stable carbon isotope ratio for foraging behavior analysis of capybara (Hydrochoerus hydrochaeris) from Esteros del Iberá, Argentina" . Mammalian Biology, vol. 80, no. 2, 2015, pp. 73-80.
http://dx.doi.org/10.1016/j.mambio.2014.12.007
---------- VANCOUVER ----------
Corriale, M.J., Loponte, D. Use of stable carbon isotope ratio for foraging behavior analysis of capybara (Hydrochoerus hydrochaeris) from Esteros del Iberá, Argentina. 2015;80(2):73-80.
http://dx.doi.org/10.1016/j.mambio.2014.12.007