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タイトル: | Reproductive success of two male morphs in a free-ranging population of Bornean orangutans |
著者: | Tajima, Tomoyuki https://orcid.org/0000-0002-5034-2047 (unconfirmed) Malim, Titol P. Inoue, Eiji |
著者名の別形: | 田島, 知之 井上, 英治 |
キーワード: | Paternity analysis Male dominance Bimaturism Bornean orangutan Pongo pygmaeus Free-ranging population |
発行日: | 2018 |
出版者: | Springer Nature |
誌名: | Primates |
巻: | 59 |
開始ページ: | 127 |
終了ページ: | 133 |
抄録: | The reproductive success of male primates is not always associated with dominance status. For example, even though male orangutans exhibit intra-sexual dimorphism and clear dominance relationships exist among males, previous studies have reported that both morphs are able to sire offspring. The present study aimed to compare the reproductive success of two male morphs, and to determine whether unflanged males sired offspring in a free-ranging population of Bornean orangutans, using 12 microsatellite loci to determine the paternity of eight infants. A single flanged male sired most of the offspring from parous females, and an unflanged male sired a firstborn. This is consistent with our observation that the dominant flanged male showed little interest in nulliparous females, whereas the unflanged males frequently mated with them. This suggests that the dominant flanged male monopolizes the fertilization of parous females and that unflanged males take advantage of any mating opportunities that arise in the absence of the flanged male, even though the conception probability of nulliparous females is relatively low. |
著作権等: | This is a post-peer-review, pre-copyedit version of an article published in Primates. The final authenticated version is available online at: http://dx.doi.org/10.1007/s10329-017-0648-1. This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 |
URI: | http://hdl.handle.net/2433/259300 |
DOI(出版社版): | 10.1007/s10329-017-0648-1 |
PubMed ID: | 29387973 |
出現コレクション: | 学術雑誌掲載論文等 |
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