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Female mate choice for male size in a freshwater goby under experimental conditions eliminating inter-male interference

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Quan điểm/Open
Ngày
2024-01-29
Tác giả
Ito, Sayaka
Iguchi, Kei'ichiro
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596
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Cited times in Scopus



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trừu tượng
The preference of females for male body size was examined in an experimental environment where direct interference between males was eliminated. In this environment, females preferred to spawn with larger males. To understand the preference of females for larger males, paternal care and egg defence abilities and paternal cannibalism intensity were further tested with respect to the body size of males. The dead egg rate for an egg mass during the paternal care period was not related to the body size of the paternal males. However, larger males could defend their egg masses more successfully against nest intruders than smaller ones. During the paternal egg care period, paternal males often consumed eggs in their nests. In particular, smaller males compared to females caused paternal brood cannibalism. High egg defence ability and low paternal cannibalism intensity are the most plausible reasons for females to choose larger males.
Keywords
egg defence filial cannibalism freshwater goby intra-sexual competition male size mate choice paternal care Rhinogobius
URI
http://hdl.handle.net/10862/6514
Suggested Citation
Ito, S., & Iguchi, K. (2024). Female mate choice for male size in a freshwater goby under experimental conditions eliminating inter-male interference. Behaviour, 161(3-4), 225-246. https://doi.org/10.1163/1568539X-bja10258 
DOI
10.1163/1568539X-bja10258
Chủ thể
freshwater fishes; spawning; Japan
Taxonomic term
Rhinogobius
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