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Rapid evolution of ...
Rapid evolution of ecological sexual dimorphism driven by resource competition
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- De Lisle, Stephen P. (författare)
- Lund University,Lunds universitet,Evolutionär ekologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Populationsbiologi, mikro- och makroevolution,Forskargrupper vid Lunds universitet,Evolutionary ecology,Department of Biology,Faculty of Science,Population biology, micro- and macroevolution,Lund University Research Groups
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(creator_code:org_t)
- 2022-11-10
- 2023
- Engelska.
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Ingår i: Ecology Letters. - : John Wiley & Sons. - 1461-023X .- 1461-0248. ; 26:1, s. 124-131
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Abstract
Ämnesord
Stäng
- Sex differences in ecologically important traits are common in animals and plants, and prompted Darwin to first propose an ecological cause of sexual dimorphism. Despite theoretical plausibility and Darwin's original notion, a role for ecological resource competition in the evolution of sexual dimorphism has never been directly demonstrated and remains controversial. I used experimental evolution in Drosophila melanogaster to test the hypothesis that resource competition can drive the evolution of sex differences in diet. Following just three generations of adaptation, offspring from flies evolved in low-resource, high-competition environments show elevated sexual dimorphism in diet preference compared to both the ancestor and populations evolved on high-resource availability. This increased sexual dimorphism was the result of divergence in male sucrose intake and female yeast intake consistent with the differential nutritional requirements of the sexes. These results provide the first real-time direct evidence for evolution of sexual dimorphism driven by resource competition.
Ämnesord
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
- NATURVETENSKAP -- Biologi -- Evolutionsbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Evolutionary Biology (hsv//eng)
Nyckelord
- Drosophila melanogaster
- ecological character displacement
- experimental evolution
- nutritional geometry
- resource competition
- sex-specific selection
- Biology
- Biologi
- Drosophila melanogaster
- ecological character displacement
- experimental evolution
- nutritional geometry
- resource competition
- sex-specific selection
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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