Natural Selection and the Reinforcement of Mate Recognition

Author:

Higgie Megan1,Chenoweth Steve2,Blows Mark W.1

Affiliation:

1. Department of Zoology and Entomology, University of Queensland, St. Lucia 4072, Australia.

2. Faculty of Environmental Sciences, Griffith University, Nathan 4111, Australia.

Abstract

Natural selection on mate recognition may often contribute to speciation, resulting in reproductive character displacement. Field populations of Drosophila serrata display reproductive character displacement in cuticular hydrocarbons when sympatric with Drosophila birchii . We exposed field sympatric and allopatric populations of D. serrata to experimental sympatry with D. birchii for nine generations. Cuticular hydrocarbons of field allopatric D. serrata populations evolved to resemble the field sympatric populations, whereas field sympatric D. serrata populations remained unchanged. Our experiment indicates that natural selection on mate recognition resulted in the field pattern of reproductive character displacement.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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2. Butlin R., Trends Ecol. Evol. 2, 8 (1987).

3. D. J. Howard in Hybrid Zones and the Evolutionary Process R. G. Harrison Ed. (Oxford Univ. Press New York 1993) pp.46–69.

4. R. Butlin in Speciation and the Recognition Concept D. M. Lambert H. G. Spencer Eds. (John Hopkins Univ. Press Baltimore 1995) pp. 327–366.

5. How Often Does Sympatry Affect Sexual Isolation inDrosophila?

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