Brown M M, Kreiter N A, Maple J T, Sinnott J M
Indiana University.
J Comp Psychol. 1992 Dec;106(4):350-9. doi: 10.1037/0735-7036.106.4.350.
In Part 1, we analyzed alarm calls produced by captive vervets (Cercopithecus aethiops) in response to naturally occurring stimuli. Females and juveniles regularly alarm called to airplanes, birds, and barking dogs. Juvenile females accounted for 60% of these alarm calls. In Part 2, we isolated several monkeys from the colony and presented them with life-sized silhouettes of a leopard, snake, eagle, baboon, vervet, and goose. Adult monkeys alarm called more than did juveniles. Alarm calls were elicited by leopard, snake, baboon, and vervet silhouettes, but none were elicited by eagle or goose silhouettes. Some leopard and snake alarm calls matched those recorded in the wild in the context of the vervets' natural predators. Results indicate that silhouette stimuli are a useful technique for eliciting monkey vocalizations in the laboratory.
在第一部分中，我们分析了圈养的绿猴（非洲绿猴）对自然刺激产生的警报叫声。雌性和幼年绿猴经常会对飞机、鸟类和吠叫的狗发出警报叫声。幼年雌性绿猴发出的这类警报叫声占60%。在第二部分中，我们从群体中隔离出几只猴子，并向它们展示了豹、蛇、鹰、狒狒、绿猴和鹅的真人大小的剪影。成年猴子发出的警报叫声比幼年猴子更多。豹、蛇、狒狒和绿猴的剪影引发了警报叫声，但鹰或鹅的剪影没有引发任何警报叫声。一些对豹和蛇的警报叫声与在野外记录到的绿猴面对自然天敌时的叫声相匹配。结果表明，剪影刺激是在实验室中引发猴子发声的一种有用技术。
