Changes in salivary cortisol and testosterone levels in male chimpanzees during the process of reunion with group members
Changes in salivary cortisol and testosterone levels in male chimpanzees during the process of reunion with group members
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DOI：
10.1007/s10211-023-00412-w
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发表时间：
2023-02-10
期刊：
影响因子：
1.1
通讯作者：
Hasegawa，Toshikazu
中科院分区：
文献类型：
--
作者：
Kutsukake，Nobuyuki;Teramoto，Migaku;Hasegawa，Toshikazu
将暂时分离的个体重新引入群体对社会融合和荷尔蒙水平的影响是圈养动物管理和福利方面的一个重要议题。在两个案例中，一只暂时分离的雄性黑猩猩重新加入了圈养黑猩猩的全雄性群体，我们调查了社会团聚如何影响社会互动和唾液类固醇激素水平(C，皮质醇；T，睾酮)。在这两种情况下，社会团聚都经历了分离、适应和团聚三个阶段。在这两种情况下，行为观察显示，重聚后激动感增加，紧张程度降低，这表明重聚导致了社会关系的改革。在这两种情况下，分开的雄性在驯化阶段表现出C水平的升高，在这个阶段，分开的雄性被移到它原来的室内房间，并只释放到室外的院子里。T水平在男性和不同阶段之间没有差异，但在两例中的一例重聚后，重新加入的男性的T水平升高。本研究认为，团圆过程中荷尔蒙与行为的关系可能受多种因素的影响，应特别关注社交团圆的适应，而不是社交团圆的特点，以确保团圆的成功。
The impact of re-introduction of a temporally separated individual to a group on social integration and hormone levels is an important topic in terms of the management and welfare of captive animals. Using two cases in which a temporally separated male re-joined an all-male group of captive chimpanzees,Pan troglodytes, we investigated how social reunion affected social interactions and salivary steroid hormone levels (C, cortisol; T, testosterone). In both cases, social reunion was conducted over three stages, separation, acclimation, and reunion. In both cases, behavioral observations revealed increased agonism and tension reduction after the reunion, suggesting that the reunion induced reformation of social relationships. In both cases, the separated male showed an increased C level at the acclimation stage, in which the separated male was moved to its original indoor room and released solely into an outdoor compound. The T level did not vary among males or stages, but increased for the re-joined male after reunion in one of the two cases. This study suggests that the relationships between hormones and behavior during a reunion could be affected by multiple factors and that special attention should be paid to the acclimation rather than characteristics of social reunion, to ensure the success of member reunion.