Acoustic adaptation in pygmy marmoset contact calls: Locational cues vary with distances between conspecifics

Snowdon, Charles T.; Hodun, Alexandra

doi:10.1007/bf00299886

Cited by 130 publications

(60 citation statements)

References 16 publications

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“…The social framework influences intragroup vocal communication [e.g., Snowdon & Hausberger, 1997]. For example, call usage is developmentally acquired via social learning from adults [e.g., Seyfarth & Cheney, 1986].…”

Section: Further Directionsmentioning

confidence: 99%

Effects of caller activity and habitat visibility on contact call rate of wild Japanese macaques (Macaca fuscata)

Koda

Shimooka

Sugiura

2008

American J Primatol

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A major function of contact calls in nonhuman primates is to maintain spatial cohesion among individuals in a group. The risks of spatial/visual separation from the group are likely to affect auditory contact behavior, in particular by increasing the call rate. We tested whether the risk of separation influences coo call emission by investigating the variation in call rate among behavioral contexts in two wild populations of Japanese macaques (Macaca fuscata). We focused on caller activity and the degree of visibility within the habitat as primary potential factors mediating call rate. We first estimated the habitat visibility of the two research sites at Yakushima Island (YK) and Kinkazan Island (KZ), Japan. The habitat visibility of YK was significantly more restricted than that of KZ. We then compared the call rate of 20 adult and 12 juvenile female macaques between the two wild populations to examine the potential effects of environmental differences. Both populations had a lower call rate during grooming than during feeding and moving, which are behaviors associated to higher interindividual distances. The call rate of YK adult females was significantly greater than that of both juveniles and KZ adult females, independently of activity. The call rate increased as macaques matured in the YK population, but not in the KZ population, suggesting that different developmental processes involved in contact calling of the two populations. Our findings suggest that separation risk influences call rate, and also imply a possibility of social influence that social structure change effects on the call rates.

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Section: Further Directionsmentioning

confidence: 99%

Effects of caller activity and habitat visibility on contact call rate of wild Japanese macaques (Macaca fuscata)

Koda

Shimooka

Sugiura

2008

American J Primatol

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“…Affiliative vocalizations occur in a variety of contexts, including temporary social separation (pygmy marmosets (Cebuella pygmaea) [Snowdon & Hodun, 1981] and bottlenose dolphins (Tursiops truncatus) [Janik & Slater, 1998]); reunion after separation (rhesus macaques (Macaca mulatta) [Kalin et al, 1992]; and ongoing affiliative contact (Japanese macaques (M. fuscata) [Blount, 1985;Masataka, 1989]). While previous work showed that squirrel monkey chuck exchanges occurred mostly during ongoing affiliative contact [Smith et al, 1982a], the present results indicate that the chuck stimulus alone is sufficient to elicit a chuck response in a nearby affiliated partner, independent of ongoing social activity.…”

Section: Social Function Of the Chuckmentioning

confidence: 99%

Squirrel monkey chuck call: vocal response to playback chucks based on acoustic structure and affiliative relationship with the caller

Soltis

Bernhards

Donkin

et al. 2002

American J Primatol

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Adult female squirrel monkeys (genus Saimiri) that are socially familiar often exchange the chuck vocalization, which differs acoustically across individuals. We used behavioral observations, vocalization playback experiments, and analysis of the acoustic properties of vocalizations to investigate the effect of caller identity and acoustic structure on vocal response to playback chucks in two all-female social groups (n=10 females). Females were most likely to respond with a chuck to the playback chucks of their closely affiliated partners compared to those of nonaffiliated group members. This shows for the first time that the chuck stimulus alone is sufficient to elicit a chuck response from a female's affiliated partner. Additionally, females responded with a chuck mostly to familiar playback chucks from their own group and least to playbacks of silent controls. Unfamiliar playback chucks from the same species and a different squirrel monkey species elicited chuck responses intermediate between familiar chucks and silent controls. Post-hoc discriminant function analyses provide preliminary evidence that females are most likely to respond to unfamiliar chucks when those chucks are close in acoustic structure to familiar chucks from their own social group. These results provide a provisional explanation for error in the squirrel monkey signal processing system, in which unfamiliar chucks never heard before nevertheless elicit a chuck response if they are similar in acoustic structure to familiar group chucks.

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“…Examples of usage: (a) see examples a and b for hmm; (b) mixed with hmms by Lcl group young adult and adolescent males while walk ing along a path next to the intermediary fence (seemingly awaiting the arrival of Lc2 group); each male's pace and direction of trav el along the fence was independent of the oth ers, and therefore interindividual distances were frequently greater than during cohesive group progressions; (c) huhs were emitted oc casionally during typical group progressions and were given at these times by immatures. Interferred function: similar to hmm but marks a caller's location more effectively [37], Vocalization: 'Pun [18]. Spectrograms: figure In.…”

Section: Adult Vocalizationsmentioning

confidence: 99%

The Vocal Repertoire of the Ringtailed Lemur (Lemur catta)

Macedonia¹

1993

IJFP

109

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The vocal repertoire of the ringtailed lemur (Lemur cαttα) is described quantitatively and spectrographically. Structure, usage and inferred function of the vocalizations of adults and immatures are examined and discussed. The size, acoustic variability and development of the ringtailed lemur’s vocal repertoire are compared to prior assessments for this species as well as for other primates. With up to 22 different adult call types, the ringtailed lemur has a moderately large vocal repertoire for a primate.

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Acoustic adaptation in pygmy marmoset contact calls: Locational cues vary with distances between conspecifics

Cited by 130 publications

References 16 publications

Effects of caller activity and habitat visibility on contact call rate of wild Japanese macaques (Macaca fuscata)

Effects of caller activity and habitat visibility on contact call rate of wild Japanese macaques (Macaca fuscata)

Squirrel monkey chuck call: vocal response to playback chucks based on acoustic structure and affiliative relationship with the caller

The Vocal Repertoire of the Ringtailed Lemur (Lemur catta)

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