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dc.contributor.authorJenkins, William G.
dc.contributor.authorSikkel, Paul C.
dc.contributor.authorDemopoulos, Amanda W.J.
dc.date.accessioned2018-07-26T13:13:56Z
dc.date.available2018-07-26T13:13:56Z
dc.date.issued2018
dc.identifier.citationJenkins, W.G. et al. 2018. Host feeding ecology and trophic position significantly influence isotopic discrimination between a generalist ectoparasite and its hosts: implications for parasite-host trophic studies. Food webs, 16: Article no e00092. [https://doi.org/10.1016/j.fooweb.2018.e00092]en_US
dc.identifier.issn2352-2496 (Online)
dc.identifier.urihttp://hdl.handle.net/10394/28791
dc.identifier.urihttps://doi.org/10.1016/j.fooweb.2018.e00092
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S2352249618300107
dc.description.abstractDespite being one of the most prevalent forms of consumerism in ecological communities, parasitism has largely been excluded from food-web models. Stable isotope analysis of consumers and their diets has been widely used in the study of food webs for decades. However, the amount of information regarding parasite stable isotope ecology is limited, restricting the ability of ecologists to use stable isotope analysis to study parasites in food webs. This study took advantage of distinct differences in the feeding ecology and trophic position of different species of fish known to host the same common micropredatory gnathiid isopod to study the effects of host stable isotope ecology on that of the associated micropredator. Blood engorged juvenile gnathiids were in most cases indistinguishable from their hosts' blood, but significant isotope discrimination was observed for adults. Males were generally lower in δ13C and δ15N than host blood whereas host-specific isotopic discrimination for females varied among the different host species. Model predictions indicated that there is a significant effect of host blood isotope ratios on the rate of carbon and nitrogen isotopic discrimination between gnathiids and their host’s blood. As such, general differences in the feeding ecology and trophic positions of the different host species were reflected in their associated gnathiids, indicating that stable isotope analysis of gnathiids can provide significant details concerning previous hosts. The results presented herein have significant implications for how stable isotopes may be used as a tool to study the trophic dynamics and feeding ecology of gnathiidsen_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.subjectMicropredatoren_US
dc.subjectCoral reef fishen_US
dc.subjectCaribbeanen_US
dc.subjectTrophicen_US
dc.subjectConnectivityen_US
dc.subjectStable isotopesen_US
dc.titleHost feeding ecology and trophic position significantly influence isotopic discrimination between a generalist ectoparasite and its hosts: implications for parasite-host trophic studiesen_US
dc.typeArticleen_US
dc.contributor.researchID26867214 - Sikkel, Paul C.


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