| Why join groups? Lessons from parasite-manipulated Artemia. | |
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MedLine Citation:
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PMID: 23351125 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Grouping behaviours (e.g. schooling, shoaling and swarming) are commonly explicated through adaptive hypotheses such as protection against predation, access to mates or improved foraging. However, the hypothesis that aggregation can result from manipulation by parasites to increase their transmission has never been demonstrated. We investigated this hypothesis using natural populations of two crustacean hosts (Artemia franciscana and Artemia parthenogenetica) infected with one cestode and two microsporidian parasites. We found that swarming propensity increased in cestode-infected hosts and that red colour intensity was higher in swarming compared with non-swarming infected hosts. These effects likely result in increased cestode transmission to its final avian host. Furthermore, we found that microsporidian-infected hosts had both increased swarming propensity and surfacing behaviour. Finally, we demonstrated using experimental infections that these concurrent manipulations result in increased spore transmission to new hosts. Hence, this study suggests that parasites can play a prominent role in host grouping behaviours. |
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Authors:
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Nicolas O Rode; Eva J P Lievens; Elodie Flaven; Adeline Segard; Roula Jabbour-Zahab; Marta I Sanchez; Thomas Lenormand |
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Publication Detail:
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Type: LETTER Date: 2013-1-28 |
Journal Detail:
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Title: Ecology letters Volume: - ISSN: 1461-0248 ISO Abbreviation: Ecol. Lett. Publication Date: 2013 Jan |
Date Detail:
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Created Date: 2013-1-28 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101121949 Medline TA: Ecol Lett Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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© 2013 Blackwell Publishing Ltd/CNRS. |
Affiliation:
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Centre d'Ecologie Fonctionnelle et Evolutive - UMR 5175, 1919 route de Mende, 34293, Montpellier Cedex 5, France. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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