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Author |
Hohmann, G.; Fruth, B. |
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Title |
Use and function of genital contacts among female bonobos |
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Journal Article |
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Year |
2000 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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60 |
Issue |
1 |
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107-120 |
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Abstract |
Female bonobos, Pan paniscus, show a mounting behaviour that differs physically from that in other primate species. They embrace each other ventroventrally and rub their genital swellings against each other. We investigated five hypotheses on the function of ventroventral mounting (genital contacts) that derive from previous studies of both primate and nonprimate species: (1) reconciliation; (2) mate attraction; (3) tension regulation; (4) expression of social status; and (5) social bonding. We collected data in six field seasons (1993-1998) from members of a habituated, unprovisioned community of wild bonobos at Lomako, Democratic Republic of Congo. No single hypothesis could account for the use of genital contacts, which appeared to be multifunctional. We found support for hypotheses 1 and 3. Rates of postconflict genital contacts exceeded preconflict rates suggesting that the display is used in the context of reconciliation. Rates of genital contacts were high when food could be monopolized and tension was high. However, genital contacts also occurred independently of agonistic encounters. Our study shows rank-related asymmetries in initiation and performance of genital contacts supporting the social status hypothesis: low-ranking females solicited genital contacts more often than high-ranking females while the latter were more often mounter than mountee. Although subordinates took more initiative to achieve genital contact, dominants mostly responded to the solicitation (ventral presentation) with mounting, indicating that the performance benefits both individuals. We suggest that genital contacts can be used to investigate both quality and dynamics of dyadic social relationships among female bonobos. Copyright 2000 The Association for the Study of Animal Behaviour. |
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Max Planck Institute of Evolutionary Anthropology, Leipzig |
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0003-3472 |
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PMID:10924210 |
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refbase @ user @ |
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2879 |
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Author |
Livoreil, B.; Giraldeau, L. |
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Title |
Patch departure decisions by spice finches foraging singly or in groups |
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Journal Article |
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Year |
1997 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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Volume |
54 |
Issue |
4 |
Pages |
967-977 |
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Abstract |
The marginal value theorem predicts that when resources are clumped in space, a forager can maximize its rate of intake by deciding to leave a patch when its current feeding rate falls below the average for the habitat. A group version of the model predicts that when rate-maximizing group members share a patch, they should leave sooner, and each with less gain, than single animals exploiting the same patch. We tested these predictions in the laboratory by measuring patch departure decisions of spice finches, Lonchura punctulataexploiting food patches alone or in groups of three under two habitats that require different travel times. As predicted, group members left the patch sooner and with fewer seeds than single foragers. Unlike the model's assumptions, however, birds did not share the patch equally, and their exploitation curves could not be simply derived from those of single foragers. Grouping decreased the effect of travel time on patch exploitation. Moreover, within each group the bird expected to leave first delayed its departure although it collected fewer seeds than the others. This delayed departure could aim to maintain group membership. We noted an increased variability in seed number collected by group members compared with single foragers, which could be a cost of group foraging.Copyright 1997 The Association for the Study of Animal Behaviour1997The Association for the Study of Animal Behaviour |
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Department of Biology, Concordia University |
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PMID:9344448 |
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2138 |
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Anderson JR; Gallup GG |
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Title |
Self-recognition in Saguinus? A critical essay |
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1997 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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54 |
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1563 |
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Equine Behaviour @ team @ |
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2978 |
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Author |
Bugnyar T; Huber L |
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Title |
Push or pull: an experimental study on imitation in marmosets |
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Journal Article |
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Year |
1997 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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54 |
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817 |
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Equine Behaviour @ team @ |
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2984 |
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Author |
Cheney DL; Seyfarth RM |
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Title |
Attending to behaviour versus attending to knowledge: examining monkeys' attribution of mental states |
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Year |
1990 |
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Animal Behaviour. |
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Anim. Behav. |
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40 |
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742 |
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Equine Behaviour @ team @ |
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2987 |
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Author |
Gallup GG; Povinelli DJ; Suarez SD; Anderson JR; Lethmate J; Menzel EW |
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Title |
Further reflections on self-recognition in primates |
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Journal Article |
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Year |
1995 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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Volume |
50 |
Issue |
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Pages |
1525 |
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Equine Behaviour @ team @ |
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2999 |
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Author |
Hauser MD; Kralik J |
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Title |
Life beyond the mirror: a reply to Anderson & Gallup |
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1997 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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54 |
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1568 |
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Equine Behaviour @ team @ |
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3002 |
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Author |
Heyes CM |
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Title |
Reflections on self-recognition in primates |
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Year |
1994 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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47 |
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909 |
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Equine Behaviour @ team @ |
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3005 |
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Heyes CM |
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Title |
Self-recognition in primates: further reflections create a hall of mirrors |
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1995 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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50 |
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1533 |
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Equine Behaviour @ team @ |
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3006 |
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Heyes CM |
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Title |
Self-recognition in primates: irreverence, irrelevance and irony |
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1996 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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51 |
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470 |
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Equine Behaviour @ team @ |
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3007 |
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