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The influence of territoriality and mating system for the evolution of male care, a phylogenetic study on fish
Zoologiska institutionen, Stockholms universitet.
Zoologiska institutionen, Stockholms universitet.
Zoologiska institutionen, Stockholms universitet.
2005 (English)In: Journal of Evolutionary Biology, ISSN 1010-061X, E-ISSN 1420-9101Article in journal (Refereed) Published
Abstract [en]

Evolution of male care is still poorly understood. Using phylogeneticallymatched-pairs comparisons we tested for effects of territoriality and matingsystem on male care evolution in fish. All origins of male care were found inpair-spawning species (with or without additional males such as sneakers) andnone were found in group-spawning species. However, excluding groupspawners, male care originated equally often in pair-spawning species withadditional males as in strict pair-spawning species. Evolution of male care wasalso significantly related to territoriality. Yet, most pair-spawning taxa withmale care are also territorial, making their relative influence difficult toseparate. Furthermore, territoriality also occurs in group-spawning species.Hence, territoriality is not sufficient for male care to evolve. Rather, we arguethat it is the combination of territoriality and pair spawning with sequentialpolygyny that favours the evolution of male care, and we discuss our results inrelation to paternity assurance and sexual selection.

Place, publisher, year, edition, pages
2005.
Keyword [en]
certainty of paternity; paternal care; sneaking; sperm competition; Teleostei; territory
National Category
Ecology
Research subject
Biology with specialization in Animal Ecology
Identifiers
URN: urn:nbn:se:uu:diva-138919OAI: oai:DiVA.org:uu-138919DiVA: diva2:380299
Available from: 2010-12-21 Created: 2010-12-21 Last updated: 2017-12-11

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