Title |
Sexual conflict promotes speciation in insects
|
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Published in |
Proceedings of the National Academy of Sciences of the United States of America, September 2000
|
DOI | 10.1073/pnas.97.19.10460 |
Pubmed ID | |
Authors |
Göran Arnqvist, Martin Edvardsson, Urban Friberg, Tina Nilsson |
Abstract |
Speciation rates among extant lineages of organisms vary extensively, but our understanding of the causes of this variation and, therefore, the processes of speciation is still remarkably incomplete. Both theoretical and empirical studies have indicated that sexual selection is important in speciation, but earlier discussions have focused almost exclusively on the potential role of female mate choice. Recent findings of postmating reproductive conflicts of interest between the sexes suggest a quite different route to speciation. Such conflicts may lead to perpetual antagonistic coevolution between males and females and may thus generate rapid evolutionary divergence of traits involved in reproduction. Here, we assess this hypothesis by contrasting pairs of related groups of insect species differing in the opportunity for postmating sexual conflict. Groups where females mate with many males exhibited speciation rates four times as high as in related groups where females mate only once. Our results not only highlight the general importance of postmating sexual selection in speciation, but also support the recent suggestion that sexual conflict is a key engine of speciation. |
X Demographics
Geographical breakdown
Country | Count | As % |
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United Kingdom | 1 | 100% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 1 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
United States | 12 | 2% |
United Kingdom | 6 | 1% |
Germany | 5 | 1% |
Brazil | 5 | 1% |
Spain | 4 | <1% |
France | 3 | <1% |
Hungary | 3 | <1% |
Colombia | 2 | <1% |
Canada | 2 | <1% |
Other | 14 | 3% |
Unknown | 442 | 89% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 108 | 22% |
Researcher | 102 | 20% |
Student > Master | 47 | 9% |
Student > Bachelor | 47 | 9% |
Professor | 40 | 8% |
Other | 108 | 22% |
Unknown | 46 | 9% |
Readers by discipline | Count | As % |
---|---|---|
Agricultural and Biological Sciences | 374 | 75% |
Environmental Science | 23 | 5% |
Biochemistry, Genetics and Molecular Biology | 18 | 4% |
Earth and Planetary Sciences | 12 | 2% |
Social Sciences | 3 | <1% |
Other | 10 | 2% |
Unknown | 58 | 12% |