REPRODUCTION IN WILD FEMALE OLIVE BABOONS
REPRODUCTION IN WILD FEMALE OLIVE BABOONS
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DOI：
10.1002/ajp.1350190405
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发表时间：
1989-01-01
影响因子：
2.4
通讯作者：
NICOLSON, N
中科院分区：
文献类型：
--
作者：
SMUTS, B;NICOLSON, N
本文的目的是评估影响雌性繁殖的几个因素，在一个大的野生橄榄狒狒（Papio cynocephalus anubis）的基础上，连续4年的人口统计数据。婴儿在下次受孕前死亡的女性的出生间隔明显短于婴儿存活的女性。高级别母亲的存活婴儿的出生间隔明显短于可比的低级别母亲，独立于母亲的年龄。这主要是因为从恢复骑自行车到怀孕的时间间隔对于高级别女性比低级别女性明显更短。优势等级不影响出生性别比、婴儿前2年存活率或成年女性死亡率。年龄也显着相关的生育间隔，与年龄较大的女性有较短的间隔。初产的雌性比经产的雌性有持续更长的生育间隔，但这种差异仅在下一次受孕前婴儿死亡的雌性中达到统计学显著性。初产女性的婴儿死亡率也明显较高。体型和发情周期长度的数据表明，高，低级别的女性之间没有差异。营养和压力相关的机制，可能是高排名的生殖优势的基础进行了讨论。
The purpose of this paper is to evaluate several factors that influence female reproduction in a large troop of wild olive baboons (Papio cynocephalus anubis) based on 4 consecutive years of demographic data. Interbirth intervals were significantly shorter for females whose infants died before their next conception than for females whose infants survived. High-ranking mothers of surviving infants had significantly shorter birth intervals than comparable low-ranking mothers, independent of maternal age. This occurred mainly because the interval from resumption of cycling to conception was significantly shorter for high- vs. low-ranking females. Dominance rank did not influence sex ratio at birth, infant survival in the first 2 years, or adult female mortality. Age was also significantly related to interbirth intervals, with older females having shorter intervals. Primiparous females had consistently longer reproductive intervals than did multiparous females, but this difference reached statistical significance only for females whose infants died before the next conception. Primiparous females also experienced significantly higher infant mortality. Data on body size and estrous cycle length indicated no differences between high- and low-ranking females. Nutritional and stress-related mechanisms that may underlie the reproductive advantages of high rank are discussed.