Speciation via species interactions: the divergence of mating traits within species

Hoskin, C.J., and Higgie, M. (2010) Speciation via species interactions: the divergence of mating traits within species. Ecology Letters, 13 (4). pp. 409-420.

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Abstract

A species may overlap with a mosaic of species across its geographic range. Many types of species interaction cause selection on mating traits, but their role in generating within-species divergence has been neglected. The pattern of reproductive character displacement (RCD) has been classically attributed to reinforcement, a process driven by selection against hybridisation. Recent reinforcement research shows that sexual isolation can result between displaced and non-displaced populations. We argue that RCD (and hence potentially speciation) among populations can be generated by a variety of fundamental species interactions beyond reinforcement. We unify these interactions under one process of mating trait divergence and speciation ('RCD speciation'). This process can occur in many geographic settings. Because selection is acting directly on mating traits, rapid speciation can result involving little differentiation in other traits. This pattern of diversification is seen in many groups and regions, and has previously been attributed to sexual selection alone.

Item ID: 24303
Item Type: Article (Research - C1)
ISSN: 1461-0248
Keywords: Community ecology, disruptive selection, ecological speciation, mating preferences, mating signals, magic traits, reinforcement, reproductive character displacement, sexual selection, sympatric speciation
Date Deposited: 19 Feb 2013 03:01
FoR Codes: 06 BIOLOGICAL SCIENCES > 0603 Evolutionary Biology > 060311 Speciation and Extinction @ 60%
06 BIOLOGICAL SCIENCES > 0603 Evolutionary Biology > 060303 Biological Adaptation @ 40%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970106 Expanding Knowledge in the Biological Sciences @ 100%
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