Feeding habits of capybara (Hydrochaeris hydrochaeris) in afforestation areas of the Lower Delta of the Paraná River, Argentina
Seasonal feeding habits of capybaras living in afforestation areas of the Lower Delta region were analyzed. This study was made using a microhistological analysis of faeces. Faeces samples were taken seasonally during 2 years. The results showed that a Cyperaceae, Carex riparia, was the main food it...
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1994
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00251461_v58_n4_p569_Quintana http://hdl.handle.net/20.500.12110/paper_00251461_v58_n4_p569_Quintana |
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paper:paper_00251461_v58_n4_p569_Quintana2023-06-08T14:52:38Z Feeding habits of capybara (Hydrochaeris hydrochaeris) in afforestation areas of the Lower Delta of the Paraná River, Argentina afforestation capybara diet feeding selectivity foraging Argentina, Parana River, Lower Delta Carex riparia Cynodon dactylon Hydrochaeris hydrochaeris Panicum grumosum Paspalum Seasonal feeding habits of capybaras living in afforestation areas of the Lower Delta region were analyzed. This study was made using a microhistological analysis of faeces. Faeces samples were taken seasonally during 2 years. The results showed that a Cyperaceae, Carex riparia, was the main food item in every season. This food item, together with 3 other ones (Panicum grumosum, Cynodon dactylon and Paspalum spp.) represented more than 70 % of the diet. A similar foraging pattern was shown by this rodent during the 2 years, except during Winter time when significant changes in the consumption of food items were observed from one year to the other. The botanical composition of the Winter diet was similar to those of the other three seasons. The trophic niche breadth were relatively narrow in all seasons, defining this rodent as a highly selective species. However, the lowest diet diversity and breadth of trophic niche values were observed in Winter, reflecting the lower forage availability during this season. Capybaras showed an inverse foraging behaviour to that found in other herbivores, becoming more selective during the critical seasons, and more generalist during the remaining seasons. The high consumption of C. riparia, a very abundant species in afforestation cover-types, together with the frequent presence of these rodents in these habitats, implies that capybaras have effectively adapted to the afforestation landscape of the Lower Delta of the Paraná River. © 1994, Walter de Gruyter. All rights reserved. 1994 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00251461_v58_n4_p569_Quintana http://hdl.handle.net/20.500.12110/paper_00251461_v58_n4_p569_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 |
afforestation capybara diet feeding selectivity foraging Argentina, Parana River, Lower Delta Carex riparia Cynodon dactylon Hydrochaeris hydrochaeris Panicum grumosum Paspalum |
| spellingShingle |
afforestation capybara diet feeding selectivity foraging Argentina, Parana River, Lower Delta Carex riparia Cynodon dactylon Hydrochaeris hydrochaeris Panicum grumosum Paspalum Feeding habits of capybara (Hydrochaeris hydrochaeris) in afforestation areas of the Lower Delta of the Paraná River, Argentina |
| topic_facet |
afforestation capybara diet feeding selectivity foraging Argentina, Parana River, Lower Delta Carex riparia Cynodon dactylon Hydrochaeris hydrochaeris Panicum grumosum Paspalum |
| description |
Seasonal feeding habits of capybaras living in afforestation areas of the Lower Delta region were analyzed. This study was made using a microhistological analysis of faeces. Faeces samples were taken seasonally during 2 years. The results showed that a Cyperaceae, Carex riparia, was the main food item in every season. This food item, together with 3 other ones (Panicum grumosum, Cynodon dactylon and Paspalum spp.) represented more than 70 % of the diet. A similar foraging pattern was shown by this rodent during the 2 years, except during Winter time when significant changes in the consumption of food items were observed from one year to the other. The botanical composition of the Winter diet was similar to those of the other three seasons. The trophic niche breadth were relatively narrow in all seasons, defining this rodent as a highly selective species. However, the lowest diet diversity and breadth of trophic niche values were observed in Winter, reflecting the lower forage availability during this season. Capybaras showed an inverse foraging behaviour to that found in other herbivores, becoming more selective during the critical seasons, and more generalist during the remaining seasons. The high consumption of C. riparia, a very abundant species in afforestation cover-types, together with the frequent presence of these rodents in these habitats, implies that capybaras have effectively adapted to the afforestation landscape of the Lower Delta of the Paraná River. © 1994, Walter de Gruyter. All rights reserved. |
| title |
Feeding habits of capybara (Hydrochaeris hydrochaeris) in afforestation areas of the Lower Delta of the Paraná River, Argentina |
| title_short |
Feeding habits of capybara (Hydrochaeris hydrochaeris) in afforestation areas of the Lower Delta of the Paraná River, Argentina |
| title_full |
Feeding habits of capybara (Hydrochaeris hydrochaeris) in afforestation areas of the Lower Delta of the Paraná River, Argentina |
| title_fullStr |
Feeding habits of capybara (Hydrochaeris hydrochaeris) in afforestation areas of the Lower Delta of the Paraná River, Argentina |
| title_full_unstemmed |
Feeding habits of capybara (Hydrochaeris hydrochaeris) in afforestation areas of the Lower Delta of the Paraná River, Argentina |
| title_sort |
feeding habits of capybara (hydrochaeris hydrochaeris) in afforestation areas of the lower delta of the paraná river, argentina |
| publishDate |
1994 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00251461_v58_n4_p569_Quintana http://hdl.handle.net/20.500.12110/paper_00251461_v58_n4_p569_Quintana |
| _version_ |
1768543547679571968 |