Schino G, Troisi A
Dipartimento di Genetica e Biologia Molecolare, Università di Roma La Sapienza, Rome, Italy.
Physiol Behav. 1990 Jun;47(6):1125-8. doi: 10.1016/0031-9384(90)90362-8.
Environmental and behavioral data were collected on a captive group of six long-tailed macaques housed in an outdoor cage to determine whether intragroup spacing behavior would vary in a consistent manner in relation to microclimatic variables. Records were made of ambient temperature, relative humidity, and time of day. Temperature was found to influence proximity between the monkeys. Under cool conditions, the long-tailed macaques of this study increased interindividual body contact, a behavior that lowers the amount of heat lost by radiation. Behavioral thermoregulation exerted a major effect on the expression of social relationships among the individuals. Social preference thresholds that regulate interindividual body contact were dramatically lowered under cool conditions (13-24 degrees C). In contrast, affiliative thresholds for noncontact proximity did not alter as a function of thermal conditions. The effect of temperature on dyadic body contact did not seem to vary with the social characteristics of the dyad. The results support the hypothesis that certain aspects of primate social behavior may also serve some thermoregulatory function.
对圈养在户外笼子里的一群六只长尾猕猴收集了环境和行为数据，以确定组内空间行为是否会根据微气候变量以一致的方式变化。记录了环境温度、相对湿度和一天中的时间。发现温度会影响猴子之间的距离。在凉爽的条件下，本研究中的长尾猕猴增加了个体间的身体接触，这种行为会减少辐射散热的量。行为体温调节对个体间社会关系的表达产生了重大影响。在凉爽条件下（13 - 24摄氏度），调节个体间身体接触的社会偏好阈值大幅降低。相比之下，非接触接近的亲和阈值并没有随着热条件而改变。温度对二元身体接触的影响似乎并不随二元组的社会特征而变化。结果支持了这样的假设，即灵长类动物社会行为的某些方面也可能具有一些体温调节功能。
