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  Experimental parasite community ecology: intraspecific variation in a large tapeworm affects community assembly

Benesh, D. P., & Kalbe, M. (2016). Experimental parasite community ecology: intraspecific variation in a large tapeworm affects community assembly. Journal of Animal Ecology, 85(4), 1004-1013. doi:10.1111/1365-2656.12527.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002A-F7B5-0 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-23CD-5
Genre: Journal Article

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Benesh_et_al-2016-Journal_of_Animal_Ecology_Provisional.pdf (Preprint), 620KB
 
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 Creators:
Benesh, Daniel P.1, Author              
Kalbe, Martin2, Author              
Affiliations:
1Department Evolutionary Ecology, Max Planck Institute for Evolutionary Biology, Max Planck Society, ou_1445634              
2Research Group Parasitology, Department Evolutionary Ecology, Max Planck Institute for Evolutionary Biology, Max Planck Society, ou_1445643              

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Free keywords: Apatemon; Diplostomum; Gasterosteus aculeatus; Proteocephalus; Sphaerostomum; exclusion; facilitation; indirect effects; life history strategy; spatial effects
 Abstract: Non-random species associations occur in naturally sampled parasite communities. The processes resulting in predictable community structure (e.g. particular host behaviours, cross-immunity, interspecific competition) could be affected by traits that vary within a parasite species, like growth or antigenicity. We experimentally infected three-spined sticklebacks with a large tapeworm (Schistocephalus solidus) that impacts the energy needs, foraging behaviour and immune reactions of its host. The tapeworms came from two populations, characterized by high or low growth in sticklebacks. Our goal was to evaluate how this parasite, and variation in its growth, affects the acquisition of other parasites. Fish infected with S. solidus were placed into cages in a lake to expose them to the natural parasite community. We also performed a laboratory experiment in which infected fish were exposed to a fixed dose of a common trematode parasite. In the field experiment, infection with S. solidus affected the abundance of four parasite species, relative to controls. For two of the four species, changes occurred only in fish harbouring the high-growth S. solidus; one species increased in abundance and the other decreased. These changes did not appear to be directly linked to S. solidus growth though. The parasite exhibiting elevated abundance was the same trematode used in the laboratory infection. In that experiment, we found a similar infection pattern, suggesting that S. solidus affects the physiological susceptibility of fish to this trematode. Associations between S. solidus and other parasites occur and vary in direction. However, some of these associations were contingent on the S. solidus population, suggesting that intraspecific variability can affect the assembly of parasite communities.

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Language(s): eng - English
 Dates: 2015-05-202016-04-012016-01-092016-07
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Method: Internal
 Identifiers: DOI: 10.1111/1365-2656.12527
BibTex Citekey: Benesh2016
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Project name : DFG fellowship
Grant ID : BE 5336/1-1
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Title: Journal of Animal Ecology
Source Genre: Journal
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Publ. Info: Oxford [etc.] : Blackwell Scientific Publ. [etc.]
Pages: 33 S. Volume / Issue: 85 (4) Sequence Number: - Start / End Page: 1004 - 1013 Identifier: ISSN: 0021-8790
CoNE: /journals/resource/954925410808