| Records |
| Author |
Owren, M.J.; Dieter, J.A.; Seyfarth, R.M.; Cheney, D.L. |
| Title |
Vocalizations of rhesus (Macaca mulatta) and Japanese (M. fuscata) macaques cross-fostered between species show evidence of only limited modification |
Type |
Journal Article |
| Year |
1993 |
Publication |
Developmental psychobiology |
Abbreviated Journal |
Dev Psychobiol |
| Volume |
26 |
Issue |
7 |
Pages |
389-406 |
| Keywords |
Animals; Animals, Newborn; Behavior, Animal; Discrimination Learning; Environment; Female; *Macaca; *Macaca mulatta; Male; Sound Spectrography; *Vocalization, Animal |
| Abstract |
Two rhesus and two Japanese macaque infants were cross-fostered between species in order to study the effects of auditory experience on vocal development. Both the cross-fostered and normally raised control subjects were observed over the first 2 years of life and their vocalizations were tape-recorded. We classified 8053 calls by ear, placed each call in one of six acoustic categories, and calculated the rates at which different call-types were used in different social contexts. Species differences were found in the use of “coo” and “gruff” vocalizations among control subjects. Japanese macaques invariably produced coos almost exclusively. In contrast, rhesus macaques produced a mixture of coos and gruffs and showed considerable interindividual variation in the relative use of one call type or the other. Cross-fostered Japanese macaques adhered to their species-typical behavior, rarely using gruffs. Cross-fostered rhesus subjects also exhibited species-typical behavior in many contexts, but in some situations produced coos and gruffs at rates that were intermediate between those shown by normally raised animals of the two species. This outcome suggests that environmentally mediated modification of vocal behavior may have occurred, but that the resulting changes were quite limited. |
| Address |
California Regional Primate Research Center, University of California, Davis |
| Corporate Author |
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Thesis |
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| Publisher |
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Place of Publication |
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Editor |
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| Language |
English |
Summary Language |
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Original Title |
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| Series Editor |
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Series Title |
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Abbreviated Series Title |
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| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
0012-1630 |
ISBN |
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Medium |
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| Area |
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Expedition |
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| Notes |
PMID:8270122 |
Approved  |
no |
| Call Number |
refbase @ user @ |
Serial |
700 |
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| Author |
Seyfarth, R.M.; Cheney, D.L. |
| Title |
Meaning and mind in monkeys |
Type |
Journal Article |
| Year |
1992 |
Publication |
Scientific American |
Abbreviated Journal |
Sci Am |
| Volume |
267 |
Issue |
6 |
Pages |
122-128 |
| Keywords |
Animals; Behavior, Animal; Female; *Haplorhini; Male; Speech; *Vocalization, Animal |
| Abstract |
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| Address |
University of Pennsylvania |
| Corporate Author |
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Thesis |
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| Publisher |
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Place of Publication |
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Editor |
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| Language |
English |
Summary Language |
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Original Title |
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Series Title |
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Abbreviated Series Title |
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| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
0036-8733 |
ISBN |
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Medium |
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| Area |
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Expedition |
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Conference |
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| Notes |
PMID:1439710 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
701 |
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| Author |
Cheney, D.L.; Seyfarth, R.M. |
| Title |
The representation of social relations by monkeys |
Type |
Journal Article |
| Year |
1990 |
Publication |
Cognition |
Abbreviated Journal |
Cognition |
| Volume |
37 |
Issue |
1-2 |
Pages |
167-196 |
| Keywords |
Animals; Cercopithecus aethiops/*psychology; Concept Formation; *Dominance-Subordination; Female; Macaca fascicularis/*psychology; Male; *Social Behavior; *Social Environment |
| Abstract |
Monkeys recognize the social relations that exist among others in their group. They know who associates with whom, for example, and other animals' relative dominance ranks. In addition, monkeys appear to compare types of social relations and make same/different judgments about them. In captivity, longtailed macaques (Macaca fascicularis) trained to recognize the relation between one adult female and her offspring can identify the same relation among other mother-offspring pairs, and distinguish this relation from bonds between individuals who are related in a different way. In the wild, if a vervet monkey (Cercopithecus aethiops) has seen a fight between a member of its own family and a member of Family X, this increases the likelihood that it will act aggressively toward another member of Family X. Vervets act as if they recognize some similarity between their own close associates and the close associates of others. To make such comparisons the monkeys must have some way of representing the properties of social relationships. We discuss the adaptive value of such representations, the information they contain, their structure, and their limitations. |
| Address |
Department of Anthropology, University of Pennsylvania, Philadelphia 19104 |
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Place of Publication |
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Editor |
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| Language |
English |
Summary Language |
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Original Title |
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Series Title |
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Abbreviated Series Title |
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Series Issue |
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Edition |
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| ISSN |
0010-0277 |
ISBN |
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Medium |
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| Area |
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Expedition |
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Conference |
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| Notes |
PMID:2269006 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
702 |
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| Author |
Seyfarth, R.M.; Cheney, D.L. |
| Title |
The acoustic features of vervet monkey grunts |
Type |
Journal Article |
| Year |
1984 |
Publication |
The Journal of the Acoustical Society of America |
Abbreviated Journal |
J Acoust Soc Am |
| Volume |
75 |
Issue |
5 |
Pages |
1623-1628 |
| Keywords |
*Acoustics; Animals; Auditory Perception; Cercopithecus/*physiology; Cercopithecus aethiops/*physiology; Cues; Dominance-Subordination; Female; Male; Social Behavior; Sound Spectrography; *Vocalization, Animal |
| Abstract |
East African vervet monkeys give short (125 ms), harsh-sounding grunts to each other in a variety of social situations: when approaching a dominant or subordinate member of their group, when moving into a new area of their range, or upon seeing another group. Although all these vocalizations sound similar to humans, field playback experiments have shown that the monkeys distinguish at least four different calls. Acoustic analysis reveals that grunts have an aperiodic F0, at roughly 240 Hz. Most grunts exhibit a spectral peak close to this irregular F0. Grunts may also contain a second, rising or falling frequency peak, between 550 and 900 Hz. The location and changes in these two frequency peaks are the cues most likely to be used by vervets when distinguishing different grunt types. |
| Address |
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Thesis |
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Place of Publication |
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Editor |
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| Language |
English |
Summary Language |
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Original Title |
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Series Title |
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Series Issue |
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Edition |
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| ISSN |
0001-4966 |
ISBN |
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Medium |
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Expedition |
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Conference |
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| Notes |
PMID:6736426 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
703 |
| Permanent link to this record |
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| Author |
Seyfarth, R.M.; Cheney, D.L. |
| Title |
Grooming, alliances and reciprocal altruism in vervet monkeys |
Type |
Journal Article |
| Year |
1984 |
Publication |
Nature |
Abbreviated Journal |
Nature |
| Volume |
308 |
Issue |
5959 |
Pages |
541-543 |
| Keywords |
*Altruism; Animals; Cercopithecus/*physiology; Cercopithecus aethiops/*physiology; *Grooming; *Social Behavior; Vocalization, Animal |
| Abstract |
Reciprocal altruism refers to the exchange of beneficial acts between individuals, in which the benefits to the recipient exceed the cost to the altruist. Theory predicts that cooperation among unrelated animals can occur whenever individuals encounter each other regularly and are capable of adjusting their cooperative behaviour according to experience. Although the potential for reciprocal altruism exists in many animal societies, most interactions occur between closely related individuals, and examples of reciprocity among non-kin are rare. The field experiments on vervet monkeys which we present here demonstrate that grooming between unrelated individuals increases the probability that they will subsequently attend to each others' solicitations for aid. Vervets appear to be more willing to aid unrelated individuals if those individuals have behaved affinitively toward them in the recent past. In contrast, recent grooming between close genetic relatives appears to have no effect on their willingness to respond to each other's solicitations for aid. |
| Address |
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Thesis |
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Place of Publication |
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Editor |
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| Language |
English |
Summary Language |
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Original Title |
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| Series Editor |
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Series Title |
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Abbreviated Series Title |
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| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
0028-0836 |
ISBN |
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Medium |
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| Area |
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Expedition |
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Conference |
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| Notes |
PMID:6709060 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
704 |
| Permanent link to this record |
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| Author |
Crockford, C.; Wittig, R.M.; Seyfarth, R.M.; Cheney, D.L. |
| Title |
Baboons eavesdrop to deduce mating opportunities |
Type |
Journal Article |
| Year |
2007 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
73 |
Issue |
5 |
Pages |
885-890 |
| Keywords |
baboon; cognition; eavesdropping; extrapair copulation; mate guarding; Papio hamadryas ursinus; primate; social intelligence; third-party relationships; transient relationships |
| Abstract |
Many animals appear to monitor changes in other individuals' dominance ranks and social relationships and to track changes in them. However, it is not known whether they also track changes in very transient relationships. Rapid recognition of a temporary separation between a dominant male and a sexually receptive female, for example, should be adaptive in species where subordinate males use opportunistic strategies to achieve mating success. Dominant male baboons (Papio hamadryas ursinus) form sexual consortships with oestrous females that are characterized by mate guarding and close proximity. To assess whether subordinate males track temporary changes in the status of other males' consortships, we conducted playback experiments using a two-speaker paradigm. In the test condition, subjects heard the consort male's grunts played from one speaker and his consort female's copulation call played from a speaker approximately 40 m away. This sequence suggested that the male and female had temporarily separated and that the female was mating with another male. In a control trial, subjects heard another dominant male's grunts played from one speaker and the female's copulation call played from the other. In a second control trial, conducted within 24 h after the consortship had ended, subjects again heard the consort male's grunt and the female's copulation call played from separate speakers. As predicted, subjects responded strongly only in the test condition. Eavesdropping upon the temporal and spatial juxtaposition of other individuals' vocalizations may be one strategy by which male baboons achieve sneaky matings. |
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| Notes |
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Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
816 |
| Permanent link to this record |
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| Author |
Cheney, D.L.; Seyfarth, R.M |
| Title |
Social and non.social knowledge in vervet monkeys |
Type |
Book Chapter |
| Year |
1988 |
Publication |
Machiavellian Intelligence |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
255-270 |
| Keywords |
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| Abstract |
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| Publisher |
Oxford Univ Press |
Place of Publication |
Oxford |
Editor |
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| Language |
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Summary Language |
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Original Title |
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ISBN |
0-19-852175-8 |
Medium |
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| Notes |
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Approved |
no |
| Call Number |
Equine Behaviour @ team @ Byrne+Whiten1988 |
Serial |
4787 |
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| Author |
Cheney, D.L.; Seyfarth, R.M. |
| Title |
The recognition of social alliances among vervet monkeys |
Type |
Journal Article |
| Year |
1986 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
34 |
Issue |
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Pages |
1722-1731 |
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no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
4864 |
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| Author |
Cheney, D.L.; Seyfarth, R.M. |
| Title |
Reconciliation and redirected aggression in vervet monkeys, Behaviour |
Type |
Journal Article |
| Year |
1989 |
Publication |
Behaviour |
Abbreviated Journal |
Behaviour |
| Volume |
110 |
Issue |
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Pages |
258-275 |
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no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
4865 |
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| Author |
Cheney, D.L.; Seyfarth, R.M. |
| Title |
How Monkeys See the World |
Type |
Miscellaneous |
| Year |
1990 |
Publication |
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Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
4866 |
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