ENDOCRINE MONITORING OF WILD PRIMATES

这个子项目是利用由NIH/NCRR资助的中心拨款提供的资源的许多研究子项目之一。子项目和调查员(PI)可能从另一个NIH来源获得了主要资金，因此可能会出现在其他CRISE条目中。列出的机构是针对中心的，而不一定是针对调查员的机构。获取濒危灵长类动物在野外条件下的重要生殖数据。斯特里尔和齐格勒研究了与卵巢周期开始相关的繁殖季节的时间。我们发现，早期受孕与雄激素和雌二醇水平有关。与没有怀孕的女性相比，早期受孕与较低的雄激素水平和较高的雌二醇水平有关。费迪根和齐格勒发现，对于白面卷尾猴(Cebus Capucinus)，没有明显的排卵迹象。确定排卵时间的方法是有限的。对受孕组中的男性的行为观察表明，卵巢状态的最佳指标是受孕阶段男性从属行为和性行为的两倍增加。古尔德和齐格勒发现，对于原猴、狐猴或环尾狐猴来说，与密度较高的雄性相比，雄性较少群居的雄性表现出较低的皮质醇水平和攻击性。然而，在繁殖季节竞争期间，雄性环尾狐猴的皮质醇水平并不明显较高。这些研究指出了在完全自由的条件下可以从非人类灵长类动物身上获得的内分泌数据的类型。这项研究使用了WNPRC Assay Services。注：未列入NCRR APR系统物种名录。研究人员除了研究白面卷尾猴或白喉卷尾猴外，还研究了小卷尾猴。这项工作使用了以前的进度报告中提到的私人基金会支持，也依赖于WNRPC Assay Services。

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. To obtain important reproductive data on endangered primates under field conditions. For the muriqui (Brachyteles hypoxanthus), Strier and Ziegler examined the timing of the breeding season with respect to the onset of ovarian cycling. We found that early conception was related to the amount of androgen and estradiol levels. Early conception was associated with lower androgen levels and higher estradiol levels then in females who did not conceive. Fedigan and Ziegler found for the white-faced capuchin (Cebus capucinus), there is a lack of overt signs of ovulation. A means to determine the timing of ovulation is limited. Behavioral observations on the males in the groups indicated that the best indicator of ovarian state was the two-fold increase in male affiliative and sexual behaviors during the conceptive phase. Gould and Ziegler found that for the prosimian, Lemur catta, or the ringtailed lemur that males who live in groups with fewer males show lower cortisol levels and aggression than males who live with a higher density. However, during breeding season competition, male ring tailed lemurs do not show significantly higher levels of cortisol. These studies indicate the type of endocrine data that can be obtained from nonhuman primates under totally free conditions. This research used WNPRC Assay Services. Note: Brachyteles hypoxanthus is not included on NCRR APR system species list. The investigators studied muriquis in addition to white-faced, or white-throated capuchins. This work used private foundation support, mentioned in previous progress reports, and also relied on WNRPC Assay Services.