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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Autores principales: Corriale, M.J., Orozco, M.M., Jiménez Perez, I.
Formato: JOUR
Materias:
Capybara
Cutwaters
Esteros del Iberá
Parasites
Population parameteres
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_03279383_v20_n1_p31_Corriale
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_03279383_v20_n1_p31_Corriale2023-10-03T15:25:02Z Population parameters and sanitary status of capybaras (Hydrochoerus hydrochaeris) in cutwaters of Ibera Wetlands Corriale, M.J. Orozco, M.M. Jiménez Perez, I. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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
Corriale, M.J.
Orozco, M.M.
Jiménez Perez, I.
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.
format JOUR
author Corriale, M.J.
Orozco, M.M.
Jiménez Perez, I.
author_facet Corriale, M.J.
Orozco, M.M.
Jiménez Perez, I.
author_sort Corriale, M.J.
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
url http://hdl.handle.net/20.500.12110/paper_03279383_v20_n1_p31_Corriale
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AT jimenezperezi populationparametersandsanitarystatusofcapybarashydrochoerushydrochaerisincutwatersofiberawetlands
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