Vervet monkeys (Cercopithecus aethiops) at Amboseli, Kenya, give acoustically different alarm calls to different predators.Each alarm evokes contrasting, seemingly adaptive, responses. Dorothy Cheney & Robert Seyfarth. Male leopard alarm call . The discussion on animal vocalizations in the 1980s concerned affective communication (), and Dawkins & Krebs (1978) argued that communication in animals should not be seen as information transfer, but as the process by which senders manipulate receivers.Two years later, in their seminal paper ‘Vervet monkey alarm calls: semantic communication in a … Vervet Monkey Classification and Evolution. VERVET Page 2 of 2 VERVET MONKEY FACT SHEET 2018 Vervet monkeys communicate with facial expressions, posturing, and vocalizations. Subadult male eagle alarm call Adult female eagle alarm call Vervet monkey (Chlorocebus pygerythrus) vocalizations have been the subject of considerable research, most notably for their putative language-like qualities. Three different alarm calls used by vervet monkeys to warn other individuals in the group exactly what type of predator to beware of. The Vervet Monkey is a medium to large sized monkey that is primarily found in Eastern Africa. Diana monkeys make different vocalizations for different predators. Departments of Biology and Psychology, University of Pennsylvania Publications, Grad Students, Post-Docs. Vervet Monkey Vocalizations (click on the sound diagram to hear each alarm call; Dorothy Cheney & Robert Seyfarth; University of Pennsylvania) Visual communication is also used between vervets to signal the presence of a predator. Research starting in the 1960s, for example, established that vervet monkeys have specific calls when they see leopards, eagles, and snakes, all of which requires different kinds of evasive action. Vocalizations; Gallery; Select Page. Diana monkeys alter their alarm calls based on the attack strategy of a predator. Vervet Monkey Vocalizations. Similarly, tamarin monkeys have one alarm call to warn of aerial predators and one to warn of ground-based predators. An often-cited example is the alarm repertoire of vervet monkeys. Vervet Monkey Vocalizations . In the seminal study on vervet monkeys, researchers played recordings of three different types of vocalizations they use as alarm calls for leopards, eagles, and pythons. Animals on the ground respond to leopard alarms by running into trees, to eagle alarms by looking up, and to snake alarms by looking down. Male leopard alarm call. The varied alarm calls of the vervet monkey. A remarkable example of multilingual primates is seen in Clever Monkeys, with eight different monkey species living together and listening to each other. Wanting calls that are medium-intensity with drawn-out gargles serve to attract infants to their mothers. The Vervet Monkey is thought to be a species of Grivet, another tree-dwelling African monkey that has very similar characteristics to the Vervet, along with the Malbrouck which is considered by some to be a sub-species of Vervet Monkey. Their calls are grouped into three main categories: wanting, aggression and alarm. Listeners treat vocalizations associated with one type of predator the same way that they treat sounds from that predator. Chattering is used to show In this system, receivers respond differently to different calls: for example, they look up and move down or into cover just after an eagle alarm call, and they run into the trees just after a leopard call (Struhsaker, 1967; Seyfarth et al., 1980). One type of predator to beware of notably for their putative language-like qualities most... Calls that are medium-intensity with drawn-out gargles serve to attract infants to their mothers warn of aerial and... 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