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Reproductive behavior of the male rose bitterling Rhodeus ocellatus as influenced by the operational sex ratio
Liao, Cai-Ping1,2; Yu, Dan1; Chen, Yi-Yu1; Liu, Huan-Zhang1; Liu, HZ (reprint author), Chinese Acad Sci, Inst Hydrobiol, Key Lab Aquat Biodivers & Conservat, Wuhan 430072, Peoples R China.
2013-09-01
Source PublicationZOOLOGICAL STUDIES
ISSN1021-5506
Volume52
AbstractBackground:Game theory predicts that as the operational sex ratio (OSR; the ratio of sexually active males to fertilizable females) increases, reproductive males may adopt alternative reproductive behaviors. Empirical studies indicated that alternative behaviors may differ for different species. In the present study, we investigated the influence of different male-biased OSRs on male reproductive behaviors shown by a freshwater fish, the rose bitterling Rhodeus ocellatus. Results:Six levels of the OSR (1:1, 2:1, 3:1, 5:1, 7:1, and 9:1) were established, and male leading, aggression, and preoviposition ejaculation behaviors were recorded. Our experiments showed that at low OSRs, the leading behavior of male rose bitterling increased with an increasing OSR, reaching a maximum at an OSR of 3:1, and then decreased as the OSR further increased. In contrast, aggression and preoviposition ejaculation behavior continually increased with an increasing OSR. Notably, males possibly lost their territorial position to other males and became sneakers when facing more rivals. Conclusions:These observations suggest that at lower OSRs, male rose bitterling mainly rely on leading behavior, while at higher OSRs, they increasingly adopt aggression and preoviposition ejaculation. Therefore, for the rose bitterling, (1) decreased leading behavior and (2) increased aggression and preoviposition ejaculation are two alternative responses in the face of an increasing OSR, which is a more straightforward strategy for facing an increased risk of sperm competition than that adopted by its congener, the European bitterling.; Background:Game theory predicts that as the operational sex ratio (OSR; the ratio of sexually active males to fertilizable females) increases, reproductive males may adopt alternative reproductive behaviors. Empirical studies indicated that alternative behaviors may differ for different species. In the present study, we investigated the influence of different male-biased OSRs on male reproductive behaviors shown by a freshwater fish, the rose bitterling Rhodeus ocellatus.
SubtypeArticle
KeywordGame Theory Alternative Behaviors Male Mating Behavior Rose Bitterling
Department[Liao, Cai-Ping ; Yu, Dan ; Chen, Yi-Yu ; Liu, Huan-Zhang] Chinese Acad Sci, Inst Hydrobiol, Key Lab Aquat Biodivers & Conservat, Wuhan 430072, Peoples R China ; [Liao, Cai-Ping] Univ Chinese Acad Sci, Beijing 100039, Peoples R China
DOI10.1186/1810-522X-52-21
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Funding OrganizationNational Natural Science Foundation of China [30970443] ; National Natural Science Foundation of China [30970443] ; National Natural Science Foundation of China [30970443] ; National Natural Science Foundation of China [30970443]
Indexed BySCI
Language英语
WOS Research AreaZoology
WOS SubjectZoology
WOS IDWOS:000326870000014
WOS KeywordSPERM COMPETITION ; POPULATION-DENSITY ; MATING-BEHAVIOR ; MATE CHOICE ; SERICEUS ; SUCCESS ; FISH ; SELECTION ; AMARUS ; TERRITORIALITY
Funding OrganizationNational Natural Science Foundation of China [30970443] ; National Natural Science Foundation of China [30970443] ; National Natural Science Foundation of China [30970443] ; National Natural Science Foundation of China [30970443]
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Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/19760
Collection水生生物多样性与资源保护研究中心_期刊论文
Corresponding AuthorLiu, HZ (reprint author), Chinese Acad Sci, Inst Hydrobiol, Key Lab Aquat Biodivers & Conservat, Wuhan 430072, Peoples R China.
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, Key Lab Aquat Biodivers & Conservat, Wuhan 430072, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Liao, Cai-Ping,Yu, Dan,Chen, Yi-Yu,et al. Reproductive behavior of the male rose bitterling Rhodeus ocellatus as influenced by the operational sex ratio[J]. ZOOLOGICAL STUDIES,2013,52.
APA Liao, Cai-Ping,Yu, Dan,Chen, Yi-Yu,Liu, Huan-Zhang,&Liu, HZ .(2013).Reproductive behavior of the male rose bitterling Rhodeus ocellatus as influenced by the operational sex ratio.ZOOLOGICAL STUDIES,52.
MLA Liao, Cai-Ping,et al."Reproductive behavior of the male rose bitterling Rhodeus ocellatus as influenced by the operational sex ratio".ZOOLOGICAL STUDIES 52(2013).
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