Social determinants of physiological stress and health aspects in wild femalecrested macaques (Macaca nigra)

社会关系的质量和数量影响着人类和动物的个体死亡风险。社会关系对急性和慢性压力源可能产生的缓冲作用在这方面被特别援引。长期升高的糖皮质激素水平已被证明会抑制免疫系统，从而增加对寄生虫和疾病的易感性，从而导致各种分类群的死亡率。此外，最近关于人格的研究表明，某些人格特征也会影响个体的免疫反应和健康。然而，到目前为止，只有少数关于野生哺乳动物的研究直接调查了社会性、个性、压力水平和个体健康之间的联系。因此，在我们的研究中，我们的目标是在一种高度耐受性的灵长类动物——冠猕猴的野生种群中研究这种关系。这项研究将结合对行为数据的详细分析，包括社会网络分析，生理压力数据，以及一套非侵入性收集的健康标记进行。

The quality and quantity of social relationships influences the individual risk of mortality in humans and animals alike. The buffering effect social relationships may have on acute and chronic stressors have been particularly invoked in this respect. Chronically elevated glucocorticoid levels have been shown to suppress the immune system and, thus, to increase susceptibility to parasites and disease, and thereby mortality in a variety of taxa. Furthermore, more recent studies on personality suggest that certain personality traits also impact individual immune response and healthiness. However, only a few studies on wild mammals have so far directly investigated the link between sociality, personality, stress levels and individual health. In our study, we therefore aim at investigating this relationship in a wild population of a highly tolerant primate species, the crested macaque. The study will be carried out by combining detailed analysis of behavioural data, including social network analysis, with data on physiological stress, and from a set of non-invasively collected health markers.