Population parameters and sanitary status of capybaras (Hydrochoerus hydrochaeris) in cutwaters of Ibera Wetlands
High rates of morbidity/mortality have been recorded in capybaras populations of Iberá Wetlands during the winter seasons, especially in artificial habitats. In this study we estimated population parameters of capybaras that inhabit the cutwaters within this region and analyzed their health status....
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2013
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03279383_v20_n1_p31_Corriale http://hdl.handle.net/20.500.12110/paper_03279383_v20_n1_p31_Corriale |
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paper:paper_03279383_v20_n1_p31_Corriale2023-06-08T15:33:31Z Population parameters and sanitary status of capybaras (Hydrochoerus hydrochaeris) in cutwaters of Ibera Wetlands Capybara Cutwaters Esteros del Iberá Parasites Population parameteres High rates of morbidity/mortality have been recorded in capybaras populations of Iberá Wetlands during the winter seasons, especially in artificial habitats. In this study we estimated population parameters of capybaras that inhabit the cutwaters within this region and analyzed their health status. We estimated the abundance, group size, sex ratio, physical condition and age structure, and we evaluated the sanitary status of 25 randomly selected capybaras. We carried out haematological, serological (brucellosis, trypanosomiasis and leptospirosis), ectoparasite and endoparasite studies. Local density of capybaras was high (141.7 ± 55.9 individuals/km) and group size for adults was 13.9 ± 1.9 individuals. The health condition index of sampled capybaras was low (2.96). A high prevalence of ectoparasites (Sarcoptes scabiei 90%; Amblyomma dubitatum 95%) and endoparasites (100%) was found. Serological tests for brucellosis and trypanosomiasis were negative, while 45.5 % of sera samples studied for leptospirosis were seropositive for at least one serovar. Females had higher values of hemoglobin and mean cell hemoglobin concentration. Physical and biological characteristics of artificial environments, combined with high population density of capybaras could have a significant impact on population structure and its sanitary conditions. High parasitic loads and mortality associated with possible secondary infections could modulate populations of capybaras, especially in protected areas without hunting or large predators. © SAREM, 2013. 2013 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03279383_v20_n1_p31_Corriale http://hdl.handle.net/20.500.12110/paper_03279383_v20_n1_p31_Corriale |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Capybara Cutwaters Esteros del Iberá Parasites Population parameteres |
| spellingShingle |
Capybara Cutwaters Esteros del Iberá Parasites Population parameteres Population parameters and sanitary status of capybaras (Hydrochoerus hydrochaeris) in cutwaters of Ibera Wetlands |
| topic_facet |
Capybara Cutwaters Esteros del Iberá Parasites Population parameteres |
| description |
High rates of morbidity/mortality have been recorded in capybaras populations of Iberá Wetlands during the winter seasons, especially in artificial habitats. In this study we estimated population parameters of capybaras that inhabit the cutwaters within this region and analyzed their health status. We estimated the abundance, group size, sex ratio, physical condition and age structure, and we evaluated the sanitary status of 25 randomly selected capybaras. We carried out haematological, serological (brucellosis, trypanosomiasis and leptospirosis), ectoparasite and endoparasite studies. Local density of capybaras was high (141.7 ± 55.9 individuals/km) and group size for adults was 13.9 ± 1.9 individuals. The health condition index of sampled capybaras was low (2.96). A high prevalence of ectoparasites (Sarcoptes scabiei 90%; Amblyomma dubitatum 95%) and endoparasites (100%) was found. Serological tests for brucellosis and trypanosomiasis were negative, while 45.5 % of sera samples studied for leptospirosis were seropositive for at least one serovar. Females had higher values of hemoglobin and mean cell hemoglobin concentration. Physical and biological characteristics of artificial environments, combined with high population density of capybaras could have a significant impact on population structure and its sanitary conditions. High parasitic loads and mortality associated with possible secondary infections could modulate populations of capybaras, especially in protected areas without hunting or large predators. © SAREM, 2013. |
| title |
Population parameters and sanitary status of capybaras (Hydrochoerus hydrochaeris) in cutwaters of Ibera Wetlands |
| title_short |
Population parameters and sanitary status of capybaras (Hydrochoerus hydrochaeris) in cutwaters of Ibera Wetlands |
| title_full |
Population parameters and sanitary status of capybaras (Hydrochoerus hydrochaeris) in cutwaters of Ibera Wetlands |
| title_fullStr |
Population parameters and sanitary status of capybaras (Hydrochoerus hydrochaeris) in cutwaters of Ibera Wetlands |
| title_full_unstemmed |
Population parameters and sanitary status of capybaras (Hydrochoerus hydrochaeris) in cutwaters of Ibera Wetlands |
| title_sort |
population parameters and sanitary status of capybaras (hydrochoerus hydrochaeris) in cutwaters of ibera wetlands |
| publishDate |
2013 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03279383_v20_n1_p31_Corriale http://hdl.handle.net/20.500.12110/paper_03279383_v20_n1_p31_Corriale |
| _version_ |
1768543370675748864 |