Title: FESTERING FOOD: CHYTRIDIOMYCETE PATHOGEN REDUCES QUALITY OF<i>DAPHNIA</i>HOST AS A FOOD RESOURCE
Abstract: EcologyVolume 89, Issue 10 p. 2692-2699 Report FESTERING FOOD: CHYTRIDIOMYCETE PATHOGEN REDUCES QUALITY OF DAPHNIA HOST AS A FOOD RESOURCE Kenneth J. Forshay, Corresponding Author Kenneth J. Forshay [email protected] Department of Zoology, Birge Hall, 430 Lincoln Drive, University of Wisconsin, Madison, Wisconsin 53706-1492 USA Present address: U.S. Environmental Protection Agency, Office of Research and Development, Robert S. Kerr Environmental Research Center, 919 Kerr Research Drive, Ada, Oklahoma 74820 USA. E-mail: [email protected]Search for more papers by this authorPieter T. J. Johnson, Pieter T. J. Johnson Ecology and Evolutionary Biology, Ramaley N122, Campus Box 334, University of Colorado, Boulder, Colorado 80309 USASearch for more papers by this authorMelanie Stock, Melanie Stock Department of Zoology, Birge Hall, 430 Lincoln Drive, University of Wisconsin, Madison, Wisconsin 53706-1492 USASearch for more papers by this authorCarolina Peñalva, Carolina Peñalva Department of Biology, Indiana University, Bloomington, Indiana 47405 USASearch for more papers by this authorStanley I. Dodson, Stanley I. Dodson Department of Zoology, Birge Hall, 430 Lincoln Drive, University of Wisconsin, Madison, Wisconsin 53706-1492 USASearch for more papers by this author Kenneth J. Forshay, Corresponding Author Kenneth J. Forshay [email protected] Department of Zoology, Birge Hall, 430 Lincoln Drive, University of Wisconsin, Madison, Wisconsin 53706-1492 USA Present address: U.S. Environmental Protection Agency, Office of Research and Development, Robert S. Kerr Environmental Research Center, 919 Kerr Research Drive, Ada, Oklahoma 74820 USA. E-mail: [email protected]Search for more papers by this authorPieter T. J. Johnson, Pieter T. J. Johnson Ecology and Evolutionary Biology, Ramaley N122, Campus Box 334, University of Colorado, Boulder, Colorado 80309 USASearch for more papers by this authorMelanie Stock, Melanie Stock Department of Zoology, Birge Hall, 430 Lincoln Drive, University of Wisconsin, Madison, Wisconsin 53706-1492 USASearch for more papers by this authorCarolina Peñalva, Carolina Peñalva Department of Biology, Indiana University, Bloomington, Indiana 47405 USASearch for more papers by this authorStanley I. Dodson, Stanley I. Dodson Department of Zoology, Birge Hall, 430 Lincoln Drive, University of Wisconsin, Madison, Wisconsin 53706-1492 USASearch for more papers by this author First published: 01 October 2008 https://doi.org/10.1890/07-1984.1Citations: 17 Corresponding Editor: M. F. Antolin. 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 When parasitic infections are severe or highly prevalent among prey, a significant component of the predator's diet may consist of parasitized hosts. However, despite the ubiquity of parasites in most food webs, comparisons of the nutritional quality of prey as a function of infection status are largely absent. We measured the nutritional consequences of chytridiomycete infections in Daphnia, which achieve high prevalence in lake ecosystems (>80%), and tested the hypothesis that Daphnia pulicaria infected with Polycaryum laeve are diminished in food quality relative to uninfected hosts. Compared with uninfected adults, infected individuals were smaller, contained less nitrogen and phosphorus, and were lower in several important fatty acids. Infected zooplankton had significantly shorter carapace lengths (8%) and lower mass (8–20%) than uninfected individuals. Parasitized animals contained significantly less phosphorus (16–18% less by dry mass) and nitrogen (4–6% less) than did healthy individuals. Infected individuals also contained 26–34% less saturated fatty acid and 31–42% less docosahexaenoic acid, an essential fatty acid that is typically low in cladocera, but critical to fish growth. 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Publication Year: 2008
Publication Date: 2008-10-01
Language: en
Type: article
Indexed In: ['crossref', 'pubmed']
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Cited By Count: 22
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