Publication:
The physiological cost of male-biased parasitism in a nearly monomorphic mammal

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Date
2017-04-21
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Authors
Oliver Guimerá, Arturo ; Martínez Carrasco-Pleite, Carlos ; Tvarijonaviciute, Asta ; Ruiz de Ybáñez Carnero, María del Rocío ; Martínez Guijosa, Jordi ; López Olvera, Jorge Ramón ; Fernández Aguilar, Xavier ; Colom Cadena, Andreu ; Mentaberre, Gregorio ; Velarde, Roser ; Gassó, Diana ; Garel, Mathieu ; Rossi, Luca ; Lavin, Santiago ; Serrano, Emmanuel
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Publisher
BMC
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Sanidad Animal
DOI
https://doi.org/10.1186/s13071-017-2060-5
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info:eu-repo/semantics/article
Description
© 2017. The authors. This document is made available under the CC-BY 4.0 license http://creativecommons.org/licenses/by /4.0/ This document is the published version of a published work that appeared in final form in Parasites & Vectors. To access the final work, see DOI: https://doi.org/10.1186/s13071-017-2060-5
Abstract
Background: Even though male-biased parasitism is common in mammals, little effort has been made to evaluate whether higher parasitic burden in males results in an extra biological cost, and thus a decrease in fitness. Body condition impairment and the augmentation of oxidative stress can be used as indicators of the cost of parasite infections. Here, we examined relationships between gastrointestinal and respiratory helminths, body condition and oxidative stress markers (glutathione peroxidase, paraoxonase-1) in 28 Pyrenean chamois (Rupicapra p. pyrenaica) sampled in autumn. Results: Only male chamois showed a reduction in body condition and higher oxidative stress due to parasite infection, likely because of the extremely high parasite burdens observed in males. Conclusions: This study made evident a disparity in the physiological cost of multiple parasitism between sexes in a wild mammal, mainly due to parasitic richness. Because of the similar life expectancy in male and female chamois, we suggest that males may have developed natural mechanisms to compensate for higher parasite loads during the rut. Keywords: Gastrointestinal nematodes, Lung nematodes, Kidney fat reserves, Oxidant/antioxidant status, Rupicapra pyrenaica pyrenaica
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Gastrointestinal nematodes , Lung nematodes , Kidney fat reserves , Oxidant/antioxidant status , Rupicapra pyrenaica pyrenaica
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http://hdl.handle.net/10201/140043
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