Trypanosoma evansi (Kinetoplastida: Trypanosomatidae) in capybaras (Hydrochoerus hydrochaeris, Rodentia: Hydrochoeridae): prevalence, effect and sexual selection

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 hydroch...

Full description

Bibliographic Details
Authors: Herrera, Emilio A., Castro, Yarlenis
Format: article
Status:Published version
Publication Date:2017
Country:Costa Rica
Institution:Universidad de Costa Rica
Repository:Portal de Revistas UCR
Language:English
OAI Identifier:oai:portal.ucr.ac.cr:article/20110
Online Access:https://revistas.ucr.ac.cr/index.php/rbt/article/view/20110
Access Level:Open access
Keyword:capybara
Hydrochoerus hydrochaeris
parasites
sexual selection
Trypanosoma evansi
id CR_7ba04ec9958bec6baaea5be3462fbfde
oai_identifier_str oai:portal.ucr.ac.cr:article/20110
network_acronym_str CR
network_name_str Costa Rica
repository_id_str
spelling Trypanosoma evansi (Kinetoplastida: Trypanosomatidae) in capybaras (Hydrochoerus hydrochaeris, Rodentia: Hydrochoeridae): prevalence, effect and sexual selectionHerrera, Emilio A.Castro, YarleniscapybaraHydrochoerus hydrochaerisparasitessexual selectionTrypanosoma evansiParasites 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 Rica2017-03-01info:eu-repo/semantics/publishedVersionArticleartículo originalhttp://purl.org/coar/resource_type/c_2df8fbb1info:eu-repo/semantics/articleapplication/pdftext/htmlapplication/pdfhttps://revistas.ucr.ac.cr/index.php/rbt/article/view/2011010.15517/rbt.v64i3.20110Revista de Biología Tropical; Vol. 65 No. 1 (2017): Volume 65 – Regular number 1 – March 2017; 229–237Revista de Biología Tropical; Vol. 65 Núm. 1 (2017): Volumen 65 – Número regular 1 – Marzo 2017; 229–237Revista Biología Tropical; Vol. 65 N.º 1 (2017): Volumen 65 – Número regular 1 – Marzo 2017; 229–2372215-20750034-774410.15517/rbt.v65i1reponame:Portal de Revistas UCRinstname:Universidad de Costa Ricainstacron:UCRenghttps://revistas.ucr.ac.cr/index.php/rbt/article/view/20110/28230https://revistas.ucr.ac.cr/index.php/rbt/article/view/20110/28231https://revistas.ucr.ac.cr/index.php/rbt/article/view/20110/34917Derechos de autor 2017 Revista de Biología Tropicalhttp://creativecommons.org/licenses/by/4.0acceso abiertohttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccess2022-06-09T18:02:38Zoai:portal.ucr.ac.cr:article/20110Portal de revistashttps://revistas.ucr.ac.cr/Universidadhttp://www.ucr.ac.crhttps://revistas.ucr.ac.cr/index.php/index/oaijorge.polanco@ucr.ac.crCosta RicaNo aplicaNo aplicaNo aplicaopendoar:2025-08-13T10:18:46.337Portal de Revistas UCR - Universidad de Costa Ricafalse
dc.title.none.fl_str_mv Trypanosoma evansi (Kinetoplastida: Trypanosomatidae) in capybaras (Hydrochoerus hydrochaeris, Rodentia: Hydrochoeridae): prevalence, effect and sexual selection
title Trypanosoma evansi (Kinetoplastida: Trypanosomatidae) in capybaras (Hydrochoerus hydrochaeris, Rodentia: Hydrochoeridae): prevalence, effect and sexual selection
spellingShingle Trypanosoma evansi (Kinetoplastida: Trypanosomatidae) in capybaras (Hydrochoerus hydrochaeris, Rodentia: Hydrochoeridae): prevalence, effect and sexual selection
Herrera, Emilio A.
capybara
Hydrochoerus hydrochaeris
parasites
sexual selection
Trypanosoma evansi
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
dc.creator.none.fl_str_mv Herrera, Emilio A.
Castro, Yarlenis
author Herrera, Emilio A.
author_facet Herrera, Emilio A.
Castro, Yarlenis
author_role author
author2 Castro, Yarlenis
author2_role author
dc.subject.none.fl_str_mv capybara
Hydrochoerus hydrochaeris
parasites
sexual selection
Trypanosoma evansi
topic capybara
Hydrochoerus hydrochaeris
parasites
sexual selection
Trypanosoma evansi
description 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.
publishDate 2017
dc.date.none.fl_str_mv 2017-03-01
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
Article
artículo original
http://purl.org/coar/resource_type/c_2df8fbb1
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://revistas.ucr.ac.cr/index.php/rbt/article/view/20110
10.15517/rbt.v64i3.20110
url https://revistas.ucr.ac.cr/index.php/rbt/article/view/20110
identifier_str_mv 10.15517/rbt.v64i3.20110
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 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
dc.rights.none.fl_str_mv Derechos de autor 2017 Revista de Biología Tropical
http://creativecommons.org/licenses/by/4.0
acceso abierto
http://purl.org/coar/access_right/c_abf2
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Derechos de autor 2017 Revista de Biología Tropical
http://creativecommons.org/licenses/by/4.0
acceso abierto
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
text/html
application/pdf
dc.publisher.none.fl_str_mv Universidad de Costa Rica
publisher.none.fl_str_mv Universidad de Costa Rica
dc.source.none.fl_str_mv 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): Volumen 65 – Número regular 1 – Marzo 2017; 229–237
2215-2075
0034-7744
10.15517/rbt.v65i1
reponame:Portal de Revistas UCR
instname:Universidad de Costa Rica
instacron:UCR
instname_str Universidad de Costa Rica
instacron_str UCR
institution UCR
reponame_str Portal de Revistas UCR
collection Portal de Revistas UCR
repository.name.fl_str_mv Portal de Revistas UCR - Universidad de Costa Rica
repository.mail.fl_str_mv jorge.polanco@ucr.ac.cr
_version_ 1849325367382245376
score 15,812455

Similar Items