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The influence of parasites on faecal glucocorticoid metabolite levels in raccoons: an experimental assessment in a natural setting

2010; Wiley; Volume: 282; Issue: 2 Linguagem: Inglês

10.1111/j.1469-7998.2010.00717.x

1469-7998

Ryan J. Monello, Joshua J. Millspaugh, RAMI J. WOODS, Matthew E. Gompper,

Dermatological diseases and infestations

Journal of ZoologyVolume 282, Issue 2 p. 100-108 The influence of parasites on faecal glucocorticoid metabolite levels in raccoons: an experimental assessment in a natural setting R. J. Monello, R. J. Monello Department of Fisheries and Wildlife Sciences, University of Missouri, Columbia, MO, USASearch for more papers by this authorJ. J. Millspaugh, J. J. Millspaugh Department of Fisheries and Wildlife Sciences, University of Missouri, Columbia, MO, USASearch for more papers by this authorR. J. Woods, R. J. Woods Department of Fisheries and Wildlife Sciences, University of Missouri, Columbia, MO, USASearch for more papers by this authorM. E. Gompper, M. E. Gompper Department of Fisheries and Wildlife Sciences, University of Missouri, Columbia, MO, USASearch for more papers by this author R. J. Monello, R. J. Monello Department of Fisheries and Wildlife Sciences, University of Missouri, Columbia, MO, USASearch for more papers by this authorJ. J. Millspaugh, J. J. Millspaugh Department of Fisheries and Wildlife Sciences, University of Missouri, Columbia, MO, USASearch for more papers by this authorR. J. Woods, R. J. Woods Department of Fisheries and Wildlife Sciences, University of Missouri, Columbia, MO, USASearch for more papers by this authorM. E. Gompper, M. E. Gompper Department of Fisheries and Wildlife Sciences, University of Missouri, Columbia, MO, USASearch for more papers by this author First published: 08 June 2010 https://doi.org/10.1111/j.1469-7998.2010.00717.xCitations: 18 Correspondence Ryan J. Monello, National Park Service, Biological Resource Management Division, 1201 Oak Ridge Dr. Suite 200, Fort Collins, CO 80525, USA.Email: [email protected] Editor: Virginia Hayssen Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinkedInRedditWechat Abstract Parasites and glucocorticoid hormones interact and affect a variety of processes within vertebrates, such as immune system function and reproduction. The nature of the relationship between parasite infection and glucocorticoid levels has received relatively little attention among free-ranging animals and results of experimental research in natural settings are equivocal. We conducted a parasite-reduction experiment to determine if reductions in nematodes or ectoparasites affect levels of faecal glucocorticoid metabolites (FGM) in adult raccoons. Individual raccoons were randomly assigned to a parasite-reduction treatment (ivermectin injection and Frontline Plus® application) or control group (saline injection) and recaptured within 30 days to assess treatment-related differences in parasitism and FGM levels. Treated animals had reduced nematode and ectoparasite communities. The most common and energetically expensive ectoparasite of raccoons in the region, the American dog tick, was reduced five-fold from an average of 19.3 ± 2.5 (se) to 3.4 ± 8 ticks per animal, and was unable to feed to repletion on treated animals. 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Citing Literature Volume282, Issue2October 2010Pages 100-108 ReferencesRelatedInformation