Assessment of female reproductive status by male longtailed macaques, Macaca fascicularis, under natural conditions
Assessment of female reproductive status by male longtailed macaques, Macaca fascicularis, under natural conditions
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DOI：
10.1016/j.anbehav.2003.09.006
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发表时间：
2004-05-01
期刊：
影响因子：
2.5
通讯作者：
Hodges, JK
中科院分区：
文献类型：
--
作者：
Engelhardt, A;Pfeifer, AB;Hodges, JK
近年来，灵长类性选择理论越来越重视多雌体群体中雌性生殖策略的重要性。然而，在何种程度上，女性能够有效地隐藏或宣传排卵时间作为这些策略的一部分仍然不清楚。很少有研究调查男性在自然条件下辨别女性生殖状态的能力，也没有考虑到男性等级的差异，从而获得女性或线索的能力。在自然条件下，我们在长尾猕猴中测试了雄性对雌性生育期的评估。我们使用的时间配偶守卫占主导地位的男性和下属男性对女性交配呼叫的重复播放的反应，以衡量男性在整个卵巢周期的女性的兴趣。男性的兴趣，女性生殖状态的程度，确定非侵入性的粪便激素分析，我们发现，在女性表现出的优势和从属男性的兴趣是最强的生育期期间和周围。我们的研究结果还表明，男性能够更好地认识到受孕期比非受孕周期。此外，我们发现男性的兴趣和女性雌激素水平在所有周期之间的强正相关表明，至少有一些男性用来评估女性生殖状态的线索是雌激素相关的。(C)2004年，动物行为研究协会。由爱思唯尔有限公司出版。保留所有权利。
Recent theories on primate sexual selection have paid increasing attention to the importance of reproductive strategies of females living in multimale groups. However, the extent to which females are able effectively to conceal or advertise the time of ovulation as part of these strategies remains unclear. Few studies have investigated the ability of males to discern female reproductive status under natural conditions, and none has taken into account differences in male rank, and thus ability to gain access to females or cues. We tested male assessment of a female's fertile phase under natural conditions in longtailed macaques. We used timing of mate guarding by dominant males and the response of subordinate males towards the repeated playback of a female copulation call to measure male interest in females throughout the ovarian cycle. Relating the degree of male interest to female reproductive status, as determined noninvasively by faecal hormone analysis, we found that interest in females shown by both dominant and subordinate males was strongest during and around the fertile phase. Our results also indicate that males were better able to recognize the fertile period in conception than in nonconception cycles. Furthermore, our finding of a strong positive relation between male interest and female oestrogen levels in all cycles indicates that at least some of the cues used by males to assess female reproductive status are oestrogen related. (C) 2004 The Association for the Study of Animal Behaviour. Published by Elsevier Ltd. All rights reserved.