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Abstract:

Trophic niche parameters and forage preferences of capybara Hydrochaeris hydrochaeris Linnaeus, 1766 were studied at three areas of east-central Argentina: Lower Delta Islands (LDI), only capybara present; Puerto Constanza (PC), capybara and cattle, and Villaguay (VI), capybara, cattle and sheep. Significant correlation was found in the annual botanical composition of capybara faeces at LDI and PC, but no correlation was found between faecal composition at these two areas and those at VI. The narrowest trophic niche corresponded to LDI, while the widest corresponded to VI, with significant differences in the values among the three areas. Capybara consumed Carex riparia, Cynodon dactylon and Panicum grumosum in LDI, and P. milioides in VI in proportion greater than availability. Three and eight food items were consumed less than availability in VI and PC, respectively. The greater the species number and density of livestock animals, the more generalist the behavior of capybara, possibly due to direct interaction in the use of grazing resources. Changes in availability of foraging species may influence the capybara's preference patterns and the consumption of suboptimal feeding items may indicate a greater pressure on foraging resources in the areas where capybaras share their habitat with livestock.

Registro:

Documento: Artículo
Título:Influence of livestock grazing on the capybara's trophic niche and forage preferences
Autor:Quintana, R.D.
Filiación:Laboratorio de Ecologia Regional, Departamento de Ciencas Biologicas, Ciudad Universitaria, (1428) Buenos Aires, Argentina
Palabras clave:Argentina; Feeding habits; Hydrochaeris hydrochaeris; Paraná; River; Wetlands; food preference; grazing; livestock; niche; wetland; Argentina; Animalia; Bos taurus; Carex; Carex hyalinolepis; Carex riparia; Cynodon; Cynodon dactylon; Cynodon dactylon; Hydrochaeris hydrochaeris; Hydrochaeris hydrochaeris; Ovis aries; Panicum; Panicum grumosum; Panicum grumosum; Panicum milioides; Panicum milioides; Riparia
Año:2002
Volumen:47
Número:2
Página de inicio:175
Página de fin:183
DOI: http://dx.doi.org/10.1007/BF03192457
Título revista:Acta Theriologica
Título revista abreviado:Acta Theriol.
ISSN:00017051
CODEN:ATRLA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00017051_v47_n2_p175_Quintana

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Citas:

---------- APA ----------
(2002) . Influence of livestock grazing on the capybara's trophic niche and forage preferences. Acta Theriologica, 47(2), 175-183.
http://dx.doi.org/10.1007/BF03192457
---------- CHICAGO ----------
Quintana, R.D. "Influence of livestock grazing on the capybara's trophic niche and forage preferences" . Acta Theriologica 47, no. 2 (2002) : 175-183.
http://dx.doi.org/10.1007/BF03192457
---------- MLA ----------
Quintana, R.D. "Influence of livestock grazing on the capybara's trophic niche and forage preferences" . Acta Theriologica, vol. 47, no. 2, 2002, pp. 175-183.
http://dx.doi.org/10.1007/BF03192457
---------- VANCOUVER ----------
Quintana, R.D. Influence of livestock grazing on the capybara's trophic niche and forage preferences. Acta Theriol. 2002;47(2):175-183.
http://dx.doi.org/10.1007/BF03192457