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Genetic mating patt...
Genetic mating patterns studied in pools with manipulated nest site availability in two populations of Pomatoschistus minutus
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Singer, A. (författare)
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- Kvarnemo, Charlotta, 1963 (författare)
- Gothenburg University,Göteborgs universitet,Zoologiska institutionen, ekologisk zoologi,Department of Zoology, Animal Ecology
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Lindström, K. (författare)
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- Svensson, Ola, 1971 (författare)
- Gothenburg University,Göteborgs universitet,Zoologiska institutionen, ekologisk zoologi,Department of Zoology, Animal Ecology,Department of Zoology, Stockholm University, Stockholm, Sweden
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(creator_code:org_t)
- Wiley, 2006
- 2006
- Engelska.
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Ingår i: Journal of Evolutionary Biology. - : Wiley. - 1010-061X .- 1420-9101. ; 19:5, s. 1641-1650
- Relaterad länk:
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https://gup.ub.gu.se...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Pomatoschistus minutus show paternal care in a resource defence mating system. We investigated the effect of nest-site availability on parasitic spawning. Each experimental pool contained four potentially nest-building males, four females and nests-sites in shortage (2) or excess (6). Both treatments were conducted in two populations; one with natural nest-sites in excess, one with a nest-site shortage. Microsatellite-DNA revealed that all nest-holders had fertilized most of the eggs they tended. Yet, 35% of the nests contained eggs fertilized by another male and 14.4% of the males had performed parasitic spawning. There was no site or treatment effect. Several females spawned in two nests, which coincided with parasitic spawnings, suggesting a cost to the nest-holder in terms of lost mating success. Nest-holders with and without eggs and non-nesting males all spawned parasitically, generating a significantly lower opportunity for sexual selection compared to if there had been no parasitic spawning.
Ämnesord
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
Nyckelord
- alternative mating tactics
- baltic sea
- extra pair paternity
- nest availability
- piracy
- sand goby
- sneaking
- sperm competition
- strategies
- extra-pair paternity
- alternative reproductive tactics
- sexual selection
- sand goby
- sperm competition
- common goby
- poecilia-reticulata
- rhodeus-sericeus
- predation risk
- female mimicry
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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