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  Inter- and intraspecific conflicts between parasites over host manipulation

Hafer, N., & Milinski, M. (2016). Inter- and intraspecific conflicts between parasites over host manipulation. Proceedings. Biological Sciences / The Royal Society, 283(1824): 20152870. doi:10.1098/rspb.2015.2870.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0029-C0C3-0 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-1F06-D
Genre: Journal Article

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Hafer_Milinski_2016.pdf (Publisher version), 484KB
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 Creators:
Hafer, Nina1, Author              
Milinski, Manfred1, Author              
Affiliations:
1Department Evolutionary Ecology, Max Planck Institute for Evolutionary Biology, Max Planck Society, ou_1445634              

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Free keywords: cestode; host manipulation; interspecific conflict; intraspecific conflict; nematode; sabotage
 Abstract: Host manipulation is a common strategy by which parasites alter the behaviour of their host to enhance their own fitness. In nature, hosts are usually infected by multiple parasites. This can result in a conflict over host manipulation. Studies of such a conflict in experimentally infected hosts are rare. The cestode Schistocephalus solidus (S) and the nematode Camallanus lacustris (C) use copepods as their first intermediate host. They need to grow for some time inside this host before they are infective and ready to be trophically transmitted to their subsequent fish host. Accordingly, not yet infective parasites manipulate to suppress predation. Infective ones manipulate to enhance predation. We experimentally infected laboratory-bred copepods in a manner that resulted in copepods harbouring (i) an infective C plus a not yet infective C or S, or (ii) an infective S plus a not yet infective C. An infective C completely sabotaged host manipulation by any not yet infective parasite. An infective S partially reduced host manipulation by a not yet infective C. We hence show experimentally that a parasite can reduce or even sabotage host manipulation exerted by a parasite from a different species.

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Language(s): eng - English
 Dates: 2015-11-302016-01-122016-02-032016-02
 Publication Status: Published in print
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 Rev. Method: -
 Identifiers: DOI: 10.1098/rspb.2015.2870
BibTex Citekey: hafer_inter-_2016
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Funding organization : Max Planck Society

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Title: Proceedings. Biological Sciences / The Royal Society
Source Genre: Journal
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Pages: 9 Seiten Volume / Issue: 283 (1824) Sequence Number: 20152870 Start / End Page: - Identifier: ISSN: 1471-2954