Trypanosoma evansi (Kinetoplastida: Trypanosomatidae) in capybaras (Hydrochoerus hydrochaeris, Rodentia: Hydrochoeridae): prevalence, effect and sexual selection
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| Formato: | Online |
| Idioma: | eng |
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Universidad de Costa Rica
2017
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| Acceso en línea: | https://revistas.ucr.ac.cr/index.php/rbt/article/view/20110 |
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RBT201102022-06-09T18:02:38Z Trypanosoma evansi (Kinetoplastida: Trypanosomatidae) in capybaras (Hydrochoerus hydrochaeris, Rodentia: Hydrochoeridae): prevalence, effect and sexual selection Herrera, Emilio A. Castro, Yarlenis capybara Hydrochoerus hydrochaeris parasites sexual selection Trypanosoma evansi Parasites play a crucial role in the ecology of animals. They also appear to be important in mechanisms underlying sexual selection processes. In this article we study the prevalence, effect and potential role in sexual selection of the protozoon Trypanosoma evansi in capybaras, Hydrochoerus hydrochaeris. We collected our samples from the annual capybara cull of a ranch in Venezuela, using the volume of the snout scent gland as an indicator of dominance; the residuals of body weight as indicators of condition; and the residuals of the spleen mass as indicators of immune function. Overall prevalence was 30.9% (N=97) with no difference between males and females and no relation between infection with T. evansi and condition. However, we found that infected animals had larger spleens (residuals), indicating an immunological cost of the infection. Further, males with larger snout scent glands (more dominant) were less likely to be infected than males with smaller glands (less dominant) suggesting that by choosing males with a large gland, females may be using the gland as an indicator of health, which is consistent with the “good genes” view of sexual selection. Universidad de Costa Rica 2017-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Article application/pdf text/html application/pdf https://revistas.ucr.ac.cr/index.php/rbt/article/view/20110 10.15517/rbt.v64i3.20110 Revista de Biología Tropical; Vol. 65 No. 1 (2017): Volume 65 – Regular number 1 – March 2017; 229–237 Revista de Biología Tropical; Vol. 65 Núm. 1 (2017): Volumen 65 – Número regular 1 – Marzo 2017; 229–237 Revista Biología Tropical; Vol. 65 N.º 1 (2017): Volume 65 – Regular number 1 – March 2017; 229–237 2215-2075 0034-7744 10.15517/rbt.v65i1 eng https://revistas.ucr.ac.cr/index.php/rbt/article/view/20110/28230 https://revistas.ucr.ac.cr/index.php/rbt/article/view/20110/28231 https://revistas.ucr.ac.cr/index.php/rbt/article/view/20110/34917 Copyright (c) 2017 Revista de Biología Tropical http://creativecommons.org/licenses/by/4.0 |
| institution |
Universidad de Costa Rica |
| collection |
Revista de Biología Tropical |
| language |
eng |
| format |
Online |
| author |
Herrera, Emilio A. Castro, Yarlenis |
| spellingShingle |
Herrera, Emilio A. Castro, Yarlenis Trypanosoma evansi (Kinetoplastida: Trypanosomatidae) in capybaras (Hydrochoerus hydrochaeris, Rodentia: Hydrochoeridae): prevalence, effect and sexual selection |
| author_facet |
Herrera, Emilio A. Castro, Yarlenis |
| author_sort |
Herrera, Emilio A. |
| title |
Trypanosoma evansi (Kinetoplastida: Trypanosomatidae) in capybaras (Hydrochoerus hydrochaeris, Rodentia: Hydrochoeridae): prevalence, effect and sexual selection |
| title_short |
Trypanosoma evansi (Kinetoplastida: Trypanosomatidae) in capybaras (Hydrochoerus hydrochaeris, Rodentia: Hydrochoeridae): prevalence, effect and sexual selection |
| title_full |
Trypanosoma evansi (Kinetoplastida: Trypanosomatidae) in capybaras (Hydrochoerus hydrochaeris, Rodentia: Hydrochoeridae): prevalence, effect and sexual selection |
| title_fullStr |
Trypanosoma evansi (Kinetoplastida: Trypanosomatidae) in capybaras (Hydrochoerus hydrochaeris, Rodentia: Hydrochoeridae): prevalence, effect and sexual selection |
| title_full_unstemmed |
Trypanosoma evansi (Kinetoplastida: Trypanosomatidae) in capybaras (Hydrochoerus hydrochaeris, Rodentia: Hydrochoeridae): prevalence, effect and sexual selection |
| title_sort |
trypanosoma evansi (kinetoplastida: trypanosomatidae) in capybaras (hydrochoerus hydrochaeris, rodentia: hydrochoeridae): prevalence, effect and sexual selection |
| publisher |
Universidad de Costa Rica |
| publishDate |
2017 |
| url |
https://revistas.ucr.ac.cr/index.php/rbt/article/view/20110 |
| work_keys_str_mv |
AT herreraemilioa trypanosomaevansikinetoplastidatrypanosomatidaeincapybarashydrochoerushydrochaerisrodentiahydrochoeridaeprevalenceeffectandsexualselection AT castroyarlenis trypanosomaevansikinetoplastidatrypanosomatidaeincapybarashydrochoerushydrochaerisrodentiahydrochoeridaeprevalenceeffectandsexualselection |
| _version_ |
1810114811746320384 |