Male courtship decisions are influenced by light environment and female receptivity.

Cole, Gemma and Endler, John 2016, Male courtship decisions are influenced by light environment and female receptivity., Proceedings of the Royal Society B: biological sciences, vol. 283, no. 1839, pp. 1-9, doi: 10.1098/rspb.2016.0861.

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Title Male courtship decisions are influenced by light environment and female receptivity.
Author(s) Cole, GemmaORCID iD for Cole, Gemma
Endler, JohnORCID iD for Endler, John
Journal name Proceedings of the Royal Society B: biological sciences
Volume number 283
Issue number 1839
Start page 1
End page 9
Total pages 9
Publisher The Royal Society Publishing
Place of publication London, Eng.
Publication date 2016-09-28
ISSN 0962-8452
Keyword(s) colour signals
light environment
sexual selection
visual contrast
Summary The appearance of animal colour signals depends jointly upon the ambient light spectrum and the signal's reflectance spectra. Light environment heterogeneity might, therefore, allow individuals to enhance their signal by signalling in an environment that increases signal efficacy. We tested this hypothesis by providing male guppies (Poecilia reticulata), a choice of three light environments in which to display their colour signal to females: green, lilac, and clear. We paired males with both receptive and non-receptive females to test whether female response might affect male behavioural decisions. Males preferred the clear environment in all trials and this environment also resulted in males having the highest average visual contrast. Sexual behaviour was influenced by complex interactions between female receptivity, light environment, and male colour pattern contrast. Males spent significantly more time in the environment in which their colour signal had the highest contrast, but only when paired with receptive females. Significant interactions between light environment and individual male colour components were also seen only in receptive trials. Our results suggest that males use light environment to enhance their colour pattern, but only in the presence of receptive females.
Language eng
DOI 10.1098/rspb.2016.0861
Field of Research 060399 Evolutionary Biology not elsewhere classified
Socio Economic Objective 970106 Expanding Knowledge in the Biological Sciences
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2016, The Royal Society Publishing
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Created: Thu, 10 Nov 2016, 13:31:33 EST

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