Mixed-species associations of Diana and Campbell's monkeys: the costs and benefits of a forest phenomenon

Wolters, Sonja; Zuberbühler, Klaus

doi:10.1163/156853903321826684

Cited by 67 publications

(66 citation statements)

References 29 publications

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“…There is considerable evidence that the high frequencies of polyspecific associations at Taï are not caused by attraction to common dietary resources or the result of chance encounters, but are, rather, a direct adaptation to predator pressure. 24,25,[67][68][69] If predation favors the formation of mixed species groups, then differences in association rates should vary with predation pressure. Two examples provide strong support for this notion.…”

Section: Polyspecific Associationsmentioning

confidence: 99%

Socioecology, predation, and cognition in a community of West African monkeys

McGraw

Zuberbühler

2008

Evolutionary Anthropology

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The Ivory Coast's Taï Forest is home to a diverse primate fauna, including eight monkey species that interact daily with the environment, each other, and a web of predators. These interactions have led to an array of adaptations, some of which conform to theoretical expectations, and others are at odds with current behavioral ecology models. In this paper, we draw on fifteen years of observations to examine two central issues. First, how do broad trends in diet and resource distribution influence group size and levels of sociality? Second, what mechanisms are used to counter pressures exerted by the predator community? The general picture that emerges is that while the pressure exerted by predators at Taï has led to a host of behavioral and cognitive adaptations, it is food preferences and foraging habits, not predation pressure, that are the main determinants, not only of group size, but also its direct consequences ‐ mating systems and sociality levels.

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Section: Polyspecific Associationsmentioning

confidence: 99%

Socioecology, predation, and cognition in a community of West African monkeys

McGraw

Zuberbühler

2008

Evolutionary Anthropology

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“…Zuberbühler, 2003). The following six categories of vocalisations were used as playback stimuli (a) crowned eagle shrieks; (b) leopard growls; (c) Diana monkey eagle alarm calls; (d) Diana monkey leopard alarm calls; (e) Campbell's monkey eagle alarm calls; (f) Campbell's monkey leopard alarm calls.…”

Section: Playback Protocolmentioning

confidence: 99%

“…Slobodchikoff et al, 1991;Naguib et al, 1999;Manser, 2001;Zuberbühler, 2003). In addition, some mammal species are able to discriminate between alarm calls of other species and to respond appropriately to them (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…Although monkey alarm calls have the capacity to encode information about predator type there is currently no evidence that these calls can encode information about the predator's spatial location (Zuberbühler, 2003). Not knowing the predator's whereabouts, however, might have important implications about the best anti-predator strategy to pursue.…”

Section: Introductionmentioning

confidence: 99%

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The responses of black-casqued hornbills to predator vocalisations and primate alarm calls

Rainey

Zuberbühler

Slater

2004

Behav

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SummaryBlack-casqued hornbills (Ceratogymna atrata) forage in small flocks in the tropical forests of West Africa, often in the vicinity of primate groups, including Diana and Campbell's monkeys (Cercopithecus diana, C. campbelli). Previous work has shown that these monkey species produce acoustically distinct alarm calls to crowned eagles (Stephanoaetus coronatus) and leopards (Panthera pardus), two of their main predators. Black-casqued hornbills are highly vulnerable to crowned eagles, but not leopards, suggesting that individuals may respond differently to these two predators. We analysed the vocal response of these birds to field playbacks conducted on different monkey species in Tai National Park, Ivory Coast. We tested six stimuli, three of which related to the presence of a crowned eagle (eagle shrieks, Diana and Campbell's eagle alarm calls) and three to the presence of a leopard (leopard growls, Diana and Campbell's leopard alarm calls). Results showed that hornbills consistently distinguished between eagle-and leopard-related stimuli, suggesting that birds attended to the predator class associated with the various stimuli. Second, within eagle-related stimuli, 4) Corresponding author's e-mail address: kz3@st-and.ac.uk 5) Field research was funded by the Universities of Pennsylvania and Zurich, the European Science Foundation (Origin of Man, Language and Languages), the Swiss and US National Science Foundations, the National Geographic Society, and the British Academy. We thank Dr Jerome Tondoh for providing permits to HJR and the CRE staff in Taï NP for their help. HJR received financial support from St Andrews University. Jennifer McCullough and Leeanne Alonso of Conservation International and Francis Lauginie of Afrique Nature International provided funding opportunities. Ailsa Ritchie and colleagues are thanked also. Susanne Shultz gave details of eagle behaviour. Nazaire Massamba kindly provided the French translation. Published inBehaviour, Volume 141, Issue 10, 2004, pages 1263-1277 which should be used for any reference to this work 1hornbills responded more strongly to the actual predator vocalizations than the associated alarm calls. One interpretation of these data is that birds were sensitive to the precision of information concerning the location of the eagle. We discuss these results in light of previous data on hornbill behaviour and cognitive capacities. . Les résultats montrent que les calaos distinguent régulièrement les stimuli relatifs à l'aigle et à la panthère, laissant supposer que les oiseaux sont attentifs à la classe de prédateurs en rapport avec divers stimuli. Ensuite, dans les stimuli inhérents à l'aigle, les calaos ont répondu plus fortement à la voix réelle du prédateur qu'aux cris d'alarme y relatifs, laissant supposer qu'ils sont sensibles à la variation de l'information ainsi qu'à sa précision sur l'emplacement du prédateur. Nous discuterons de ces résultats à la lumière des données précédentes sur le comportement des calaos et leurs capacités cognitives. Sommaire

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“…The species has already been investigated before, although the attention has been on the adult males (Zuberbü hler et al 1999;Zuberbü hler 2000bZuberbü hler , 2001Zuberbü hler , 2002Wolters & Zuberbü hler 2003). Adult males produce a range of basic call types in response to external events, such as falling trees, leopards, Panthera pardus, and crowned eagles, Stephanoaetus coronatus (Zuberbü hler 2003).…”

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confidence: 99%

The alarm call system of female Campbell's monkeys

et al. 2009

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Keywords:alarm call Campbell's monkey Cercopithecus campbelli evolution of language predation referential semantic Field studies on male forest guenon alarm-calling behaviour have revealed a number of intricacies about how these primates use vocalizations to protect themselves from predation. In these species, the vocal behaviour of adult females is often different from that of the males, but little systematic work has been done. Here, we describe the alarm call system of female Campbell's monkeys, Cercopithecus campbelli, in their natural forest habitat in western Ivory Coast. We found that in response to disturbing events, females produced three basic alarm call types, 'wak-oos', 'hoks' and acoustically variable 'trill' calls, consisting of repeated and rapidly ascending (RRA) pulses, which varied systematically in the temporal and frequency domains. Using observational and experimental data we were able to demonstrate that the RRA calls consisted of four acoustic variants, which could be associated with specific contexts, allowing listeners to draw inferences about the type of disturbance experienced by the caller. We also compared the alarm call behaviour of free-ranging individuals with published results from captivity. As predicted, captive individuals failed to produce predator-specific alarm calls, but they also produced an RRA variant in response to humans that was absent in the wild. We discuss the relevance of these findings in terms of their broader potential impact on evolutionary theories of primate communication. Ó

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Mixed-species associations of Diana and Campbell's monkeys: the costs and benefits of a forest phenomenon

Cited by 67 publications

References 29 publications

Socioecology, predation, and cognition in a community of West African monkeys

Socioecology, predation, and cognition in a community of West African monkeys

The responses of black-casqued hornbills to predator vocalisations and primate alarm calls

The alarm call system of female Campbell's monkeys

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