Influence of livestock grazing on the capybara's trophic niche and forage preferences

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. Si...

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Publicado:	2002
Materias:	Argentina Feeding habits Hydrochaeris hydrochaeris Paraná River Wetlands food preference grazing livestock niche wetland Animalia Bos taurus Carex Carex hyalinolepis Carex riparia Cynodon Cynodon dactylon Ovis aries Panicum Panicum grumosum Panicum milioides Riparia
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00017051_v47_n2_p175_Quintana http://hdl.handle.net/20.500.12110/paper_00017051_v47_n2_p175_Quintana
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_00017051_v47_n2_p175_Quintana
record_format	dspace
spelling	paper:paper_00017051_v47_n2_p175_Quintana2023-06-08T14:21:06Z Influence of livestock grazing on the capybara's trophic niche and forage preferences 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 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. 2002 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00017051_v47_n2_p175_Quintana http://hdl.handle.net/20.500.12110/paper_00017051_v47_n2_p175_Quintana
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	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
spellingShingle	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 Influence of livestock grazing on the capybara's trophic niche and forage preferences
topic_facet	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
description	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.
title	Influence of livestock grazing on the capybara's trophic niche and forage preferences
title_short	Influence of livestock grazing on the capybara's trophic niche and forage preferences
title_full	Influence of livestock grazing on the capybara's trophic niche and forage preferences
title_fullStr	Influence of livestock grazing on the capybara's trophic niche and forage preferences
title_full_unstemmed	Influence of livestock grazing on the capybara's trophic niche and forage preferences
title_sort	influence of livestock grazing on the capybara's trophic niche and forage preferences
publishDate	2002
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00017051_v47_n2_p175_Quintana http://hdl.handle.net/20.500.12110/paper_00017051_v47_n2_p175_Quintana
_version_	1768544936090664960

Influence of livestock grazing on the capybara's trophic niche and forage preferences

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