期刊
ETHOLOGY
卷 126, 期 1, 页码 68-75出版社
WILEY
DOI: 10.1111/eth.12961
关键词
choosiness; claw-waving; energy allocation; male mate choice; reproductive investment; signalling cost
资金
- Faculty of Science and Technology, Nakhon Si Thammarat Rajabhat University, Thailand
In many animals, females prefer large males to small males, which allow large males to be choosier than small males when selecting a mate. We investigated the courtship intensity of small- and large-sized male fiddler crabs (Austruca perplexa) by examining their claw-waving rates (waves/min) towards small- and large-sized females. We found that large males showed a greater preference for large females by producing more waves/min towards them, whereas small males did not show any apparent preference for either large or small females. Moreover, the waving rate of large males was positively correlated with female size, but there was no correlation between waving rate and female size in small males. These results indicate that large males in a population become choosier and show strong mate choice, which is most likely due to their greater preference among females.
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