A male spider's ornamentation polymorphism maintained by opposing selection with two niches

Bo Deng; Alex Estes; Brett Grieb; Douglas Richard; Brittney Hinds; Eileen Hebets

doi:10.1016/j.jtbi.2014.05.001

A male spider's ornamentation polymorphism maintained by opposing selection with two niches

Bo Deng, Alex Estes, Brett Grieb, Douglas Richard, Brittney Hinds, Eileen Hebets

Research output: Contribution to journal › Article › peer-review

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Abstract

The Levene mechanism to maintain genotypic polymorphism by opposing selection on genotypes in multiple niches was proposed 60. years ago, and yet no systems were found to satisfy the mechanism's rather restrictive conditions. Reported here is such an example that a wolf spider population lives in a habitat of mixed rocks and leafy litter for which the females are phenotypically indistinguishable and the males have two distinct phenotypes subject to opposing selection with respect to the substrates. Census data is best-fitted to a population genetics model of the Levene type. A majority of the best fit support polymorphism, with many fitted parameter values quantitatively consistent with various laboratory studies on two closely related species.

Original language	English (US)
Pages (from-to)	103-111
Number of pages	9
Journal	Journal of Theoretical Biology
Volume	357
DOIs	https://doi.org/10.1016/j.jtbi.2014.05.001
State	Published - Sep 21 2014
Externally published	Yes

Bibliographical note

Funding Information:
The authors were partially supported by an NSF Grant, DUE-0531920, for research experiences in mathematical biology for undergraduate students.

Keywords

Female choice
Population genetics model
S. ocreata
S. rovneri
Schizocosa

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AU - Grieb, Brett

AU - Richard, Douglas

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AU - Hebets, Eileen

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A male spider's ornamentation polymorphism maintained by opposing selection with two niches

Abstract

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Keywords

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