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Behavioral adjustments of a pipefish to bacterial Vibrio challenge
Evolutionary Ecology of Marine Fishes, Helmholtz Centre of Ocean Research Kiel (GEOMAR).
Department of Animal Ecology, Evolutionary Biology Centre (EBC), Uppsala University.
Gotland University, School of Culture, Energy and Environment.
Evolutionary Ecology of Marine Fishes, Helmholtz Centre of Ocean Research Kiel (GEOMAR).
2012 (English)In: Behavioral Ecology and Sociobiology, ISSN 0340-5443, E-ISSN 1432-0762, Vol. 66, no 10, 1399-1405 p.Article in journal (Refereed) Published
Abstract [en]

Animals can profit from increasing temperatures by prolonged breeding seasons and faster growth rates. However, these fitness benefits are traded off against higher parasite load and increased virulence of temperature-sensitive pathogens. In thermally stratified habitats, behavioral plasticity can allow hosts to choose the optimal temperature to enhance individual fitness and to escape parasite pressure. To test this idea, we performed a temperature choice experiment with the host–parasite system of the sex-role reversed broad-nosed pipefish (Syngnathus typhle) and its bacterial pathogen Vibrio spp. In this species, pregnant males are expected to face a trade-off between shortening their brooding period in warm water and decreasing the effect of the infection in cold water. We found that exposure to Vibrio changed the temperature preference for both pregnant and nonpregnant males, as well as females compared to nonchallenged fish that tended to prefer warm water. This study shows that behavioral plasticity is one option for avoidance of higher bacterial prevalence, as expected due to rising ocean temperatures.

Place, publisher, year, edition, pages
Springer, 2012. Vol. 66, no 10, 1399-1405 p.
Keyword [en]
Behavioral chills, Global warming, Temperature, Host–parasite, Syngnathus typhle, Vibrio spp
National Category
Biological Sciences
Identifiers
URN: urn:nbn:se:hgo:diva-1601DOI: 10.1007/s00265-012-1395-3OAI: oai:DiVA.org:hgo-1601DiVA: diva2:560296
Available from: 2012-10-12 Created: 2012-10-12 Last updated: 2017-12-07Bibliographically approved

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Rosenqvist, Gunilla

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