Temperature influences the coercive mating and swimming performance of male eastern mosquitofish

Wilson, Robbie S. (2005) Temperature influences the coercive mating and swimming performance of male eastern mosquitofish. Animal Behaviour, 70 6: 1387-1394. doi:10.1016/j.anbehav.2004.12.024


Author Wilson, Robbie S.
Title Temperature influences the coercive mating and swimming performance of male eastern mosquitofish
Journal name Animal Behaviour   Check publisher's open access policy
ISSN 0003-3472
Publication date 2005-12-01
Year available 2005
Sub-type Article (original research)
DOI 10.1016/j.anbehav.2004.12.024
Open Access Status
Volume 70
Issue 6
Start page 1387
End page 1394
Total pages 8
Editor L.Barrett
George W Uetz(Executive Editor)
Leigh .Simmons (Executive Editor)
Place of publication London
Publisher Academic Press
Language eng
Subject C1
270604 Comparative Physiology
770403 Living resources (flora and fauna)
Abstract Although the functional consequences of temperature variation have been examined for a wide range of whole-animal performance traits, the implications of thermal variation for reproductive behaviour or performance are poorly known. I examined the acute effects of temperature on the mating behaviour and swimming performance of male eastern mosquitofish, Gambusia holbrooki, which rely on a coercive strategy to obtain matings and are routinely exposed to wide daily temperature fluctuations. Males showed reproductive behaviours across the entire test temperature range of 14-38 degrees C, representing one of the widest reproductively active temperature ranges for any ectotherm. Both the time spent in pursuit of females and the total number of mating attempts increased with temperature to a plateau that started at approximately 22-26 degrees C. However, males maintained a constant level of copulations at 18-34 degrees C, the temperature range they routinely experience in southeast Queensland. In contrast, maximum swimming performance and approach speeds during copulations were highly thermally dependent across this temperature range. Thus, acute temperature variation has important fitness implications for male G. holbrooki, but mating performance was significantly limited only at extreme temperatures. (c) 2005 The Association for the Study of Animal Behaviour. Published by Elsevier Ltd. All rights reserved.
Keyword Behavioral Sciences
Zoology
Frog Limnodynastes-peronii
Gambusia-holbrooki
Thermal Physiology
Sexual Selection
Body-size
Muscle
Acclimation
Ectotherms
Predation
Ecology
Q-Index Code C1
Institutional Status UQ
Additional Notes DOI: 10.1016/j.anbehav.2004.12.024

 
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Created: Wed, 15 Aug 2007, 17:10:22 EST