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Sympatry and parapa...
Sympatry and parapatry among rocky reef cichlids of Lake Victoria explained by female mating preferences
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- Svensson, Ola, 1971- (author)
- Högskolan i Borås,Akademin för bibliotek, information, pedagogik och IT,The Linnaeus Centre for Marine Evolutionary Biology, University of Gothenburg, Gothenburg, Sweden,SONOMA
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- Woodhouse, Katie (author)
- Department of Biology, School of Natural Sciences, University of Hull , Hull , United Kingdom
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- Smith, Alan (author)
- Department of Biology, School of Natural Sciences, University of Hull , Hull , United Kingdom
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- Seehausen, Ole (author)
- Department of Fish Ecology and Evolution, Center for Ecology, Evolution and Biogeochemistry, Eawag—Swiss Federal Institute of Aquatic Science and Technology , Kastanienbaum , Switzerland;Division of Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern , Bern , Switzerland
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- Turner, George F (author)
- School of Natural and Environmental Sciences, Bangor University , Bangor , United Kingdom
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(creator_code:org_t)
- 2023
- 2023
- English.
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In: Journal of Evolutionary Biology. - 1010-061X .- 1420-9101.
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https://hb.diva-port... (primary) (Raw object)
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Abstract
Subject headings
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- Work on the Lake Victoria cichlids Pundamilia nyererei (red dorsum males, deeper water), Pundamilia pundamilia (blue males, shallower water) and related species pairs has provided insights into processes of speciation. Here, we investigate the female mating behaviour of 5 Pundamilia species and 4 of their F1 hybrids through mate choice trials and paternity testing. Complete assortative mating was observed among all sympatric species. Parapatric species with similar depth habitat distributions interbred whereas other parapatric and allopatric species showed complete assortative mating. F1 hybrids mated exclusively with species accepted by females of the parental species. The existence of complete assortative mating among some currently allopatric species suggests that pre-existing mating barriers could be sufficient to explain current patterns of co-existence, although, of course, many other factors may be involved. Regardless of the mechanism, mating preferences may influence species distribution in potentially hybridizing taxa, such as in the adaptive radiation of cichlid fish. We suggest that this at least partly explains why some species fail to establish breeding populations in locations where they are occasionally recorded. Our results support the notion that the mating preferences of potentially cross-breeding species ought to be included in coexistence theory.
Subject headings
- 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)
- NATURVETENSKAP -- Biologi -- Genetik (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Genetics (hsv//eng)
- NATURVETENSKAP -- Biologi -- Zoologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Zoology (hsv//eng)
Keyword
- Lärarutbildning och pedagogisk yrkesverksamhet
- Teacher Education and Education Work
Publication and Content Type
- ref (subject category)
- art (subject category)
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