NDLI: Male Choice in the Stream-Anadromous Stickleback Complex

Content Provider	PubMed Central
Author	Mckinnon, Jeffrey S. Nick, Hamele Frey, Nicole Chou, Jennifer Leia, Mcaleavey Greene, Jess Paulson, Windi
Editor	Daniel, Ortiz-barrientos
Copyright Year	2012
Abstract	Studies of mating preferences and pre-mating reproductive isolation have often focused on females, but the potential importance of male preferences is increasingly appreciated. We investigated male behavior in the context of reproductive isolation between divergent anadromous and stream-resident populations of threespine stickleback, Gasterosteus aculeatus, using size-manipulated females of both ecotypes. Specifically, we asked if male courtship preferences are present, and if they are based on relative body size, non-size aspects of ecotype, or other traits. Because male behaviors were correlated with each other, we conducted a principal components analysis on the correlations and ran subsequent analyses on the principal components. The two male ecotypes differed in overall behavioral frequencies, with stream-resident males exhibiting consistently more vigorous and positive courtship than anadromous males, and an otherwise aggressive behavior playing a more positive role in anadromous than stream-resident courtship. We observed more vigorous courtship toward smaller females by (relatively small) stream-resident males and the reverse pattern for (relatively large) anadromous males. Thus size-assortative male courtship preferences may contribute to reproductive isolation in this system, although preferences are far from absolute. We found little indication of males responding preferentially to females of their own ecotype independent of body size.
Related Links	http://dx.doi.org/10.1371/journal.pone.0037951
Starting Page	37951
File Format	PDF
ISSN	19326203
e-ISSN	19326203
Journal	PLoS ONE
Issue Number	6
Volume Number	7
Language	English
Publisher	Public Library of Science
Publisher Date	2012-06-01
Access Restriction	Open
Rights Holder	Public Library of Science
Subject Keyword	Biochemistry, Genetics and Molecular Biology(all) Agricultural and Biological Sciences(all) Medicine(all) Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

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Data from: Male choice in the stream-anadromous stickleback complex (Dataset)

Repeated Lake-Stream Divergence in Stickleback Life History within a Central European Lake Basin

Divergent Macroparasite Infections in Parapatric Swiss Lake-Stream Pairs of Threespine Stickleback (Gasterosteus aculeatus)

Can gene flow have negative demographic consequences? Mixed evidence from stream threespine stickleback

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Data from: Male choice in the stream-anadromous stickleback complex (Dataset)

Repeated Lake-Stream Divergence in Stickleback Life History within a Central European Lake Basin

Divergent Macroparasite Infections in Parapatric Swiss Lake-Stream Pairs of Threespine Stickleback (Gasterosteus aculeatus)

Can gene flow have negative demographic consequences? Mixed evidence from stream threespine stickleback

A receiver bias in the origin of three-spined stickleback mate choice.

Population-Specific Covariation between Immune Function and Color of Nesting Male Threespine Stickleback

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