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Assortative Mating ...
Assortative Mating in an Ecological Context : Effects of Mate Choice Errors and Relative Species Abundance on the Frequency and Asymmetry of Hybridization
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- Qvarnström, Anna (författare)
- Uppsala universitet,Zooekologi
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- Veen, Thor (författare)
- Quest Univ Canada, Life Sci, Squamish, BC V8B 0N8, Canada.
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- Husby, Arild, Associate Senior Lecturer (författare)
- Uppsala universitet,Evolutionsbiologi
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- Ålund, Murielle (författare)
- Uppsala universitet,Zooekologi
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- Weissing, Franz J. (författare)
- Univ Groningen, Groningen Inst Evolutionary Life Sci, Nijenborgh 7, NL-9747 AG Groningen, Netherlands.
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(creator_code:org_t)
- University of Chicago Press, 2023
- 2023
- Engelska.
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Ingår i: American Naturalist. - : University of Chicago Press. - 0003-0147 .- 1537-5323. ; 201:1, s. 125-137
- Relaterad länk:
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https://doi.org/10.1...
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https://uu.diva-port... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The frequency and asymmetry of mixed-species mating set the initial stage for the ecological and evolutionary implications of hybridization. How such patterns of mixed-species mating, in turn, are influenced by the combination of mate choice errors and relative species abundance remains largely unknown. We develop a mathematical model that generates predictions for how relative species abundances and mate choice errors affect hybridization patterns. When mate choice errors are small (<5%), the highest frequency of hybridization occurs when one of the hybridizing species is at low abundance, but when mate choice errors are high (>5%), the highest hybridization frequency occurs when species occur in equal proportions. Furthermore, females of the less abundant species are overrepresented in mixed-species matings. We compare our theoretical predictions with empirical data on naturally hybridizing Ficedula flycatchers and find that hybridization is highest when the two species occur in equal abundance, implying rather high mate choice errors. We discuss ecological and evolutionary implications of our findings and encourage future work on hybrid zone dynamics that take demographic aspects, such as relative species abundance, into account.
Ämnesord
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
- NATURVETENSKAP -- Biologi -- Evolutionsbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Evolutionary Biology (hsv//eng)
Nyckelord
- mate choice model
- unidirectional hybridization
- prezygotic isolation
- speciation
- sexual isolation
- discrimination ability
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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