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Keywords: Chimpanzees
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Journal Articles
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Folia Primatol (2021) 92 (3): 164–174.
Published Online: 11 May 2021
... chimpanzees ( Pan troglodytes ). We compared: (1) the number of observed facial and gestural signals per signal type and (2) the number of observed facial and gestural signals produced by each signaler. Both methods identified facial signals, gesture signals, and gesture signalers at similar relative rates...
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Folia Primatol (2009) 80 (5): 353–358.
Published Online: 18 November 2009
...David Brugiere; Iacouba Badjinca; Cristina Silva; Abubacar Serra To clarify the distribution and the status of chimpanzees in Guinea-Bissau and on the border with Guinea, we conducted an interview survey with hunters in 110 and 60 villages in Guinea-Bissau and Guinea, respectively. Based...
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Folia Primatol (2009) 80 (1): 45–62.
Published Online: 27 March 2009
...Tasuku Kimura; Naoko Yaguramaki Development of bipedal walking from the very early stage of walking was studied longitudinally in infant humans and chimpanzees. In contrast to adults, infants of neither species could walk steadily and rhythmically step by step. Short braking duration and small...
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Folia Primatol (1993) 61 (1): 31–34.
Published Online: 16 September 2008
... and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements. Spider monkeys Chimpanzees Party size Association patterns Fission-fusion societies Social organization Brief...
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Folia Primatol (1995) 64 (1-2): 44–48.
Published Online: 16 September 2008
... to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements. Chimpanzees Social referencing Novel stimuli Cognitive abilities Pan troglodytes Mother-infant interaction Brief Report Folia Primalol 1995;64:44-48 © 1995 S. Karger...
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Folia Primatol (1995) 65 (3): 174–180.
Published Online: 16 September 2008
... from any ideas, methods, instructions or products referred to in the content or advertisements. Pan troglodytes Chimpanzees DNA fingerprinting Paternity Kinship Inclusive fitness Social behavior Brief Report Folia Primalol 1995;65:174-180 The Effects of Paternity on Interactions...
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Folia Primatol (1993) 61 (4): 177–185.
Published Online: 16 September 2008
...Linda Brent; Stan Fisher; Jorg W. Eichberg The performance of captive chimpanzees (Pan troglodytes) during a simulated foraging activity was compared to that reported for the foraging behavior of wild chimpanzees. The ability to find hidden fruit in a large outdoor play area was measured for 34...
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Folia Primatol (1990) 54 (3-4): 146–154.
Published Online: 12 September 2008
... with chimpanzees) they never develop an understanding of the requirements of the tool tasks presented. 30 10 1988 1 12 1988 12 9 2008 © 1990 S. Karger AG, Basel 1990 Copyright / Drug Dosage / Disclaimer Copyright: All rights reserved. No part of this publication may be translated...
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Folia Primatol (1990) 55 (3-4): 142–155.
Published Online: 12 September 2008
...Cheryl Miller; Kim A. Bard; Charles J. Juno; Ronald D. Nadler Earlier studies of responses of primate infants to strangers were frequently confounded with separation from the attachment figure and/or removal to an unfamiliar setting. In the present study, young chimpanzees were tested in a familiar...
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Folia Primatol (1990) 55 (2): 62–72.
Published Online: 12 September 2008
...Shozo Kojima Absolute thresholds for pure tones, loudness, frequency and intensity difference thresholds and the resonance of the external auditory meatus were measured in chimpanzees and compared with those in humans. Chimpanzees were more sensitive than humans to frequencies higher than 8 kHz...
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Folia Primatol (1990) 55 (1): 41–44.
Published Online: 12 September 2008
... and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements. Infanticide Chimpanzees Social behaviour Social control Male-infant relationships Brief Reports Folia Primatol...
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Folia Primatol (1991) 57 (2): 83–95.
Published Online: 12 September 2008
...Gen’ichi Idani Social relations and behaviours of adolescent female pygmy chimpanzees (Pan paniscus) that migrated between unit groups were studied at Wamba, Zaïre. Each immigrant female selected one particular resident female, a ‘specific senior female’ (SSF) and frequently approached and followed...
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Folia Primatol (1990) 54 (1-2): 86–99.
Published Online: 12 September 2008
...Christophe Boesch; Hedwige Boesch Reported incidences of tool use and tool making for three wild chimpanzee populations increase from Mahale (12 and 3 types of use and making, respectively), Gombe (16 and 3) to Taï (19 and 6). Sticks are commonly used and prepared at all three sites. However, Taï...
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Folia Primatol (1991) 57 (4): 232–236.
Published Online: 12 September 2008
...(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements. Chimpanzees Pan troglodytes Pan paniscus Vitamin-D-binding protein Group-specific component Isoelectric focussing...
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Folia Primatol (1987) 48 (3-4): 207–210.
Published Online: 11 September 2008
...Marc D. Hauser; Richard W. Wrangham Folia primatol. 48: 207-210 (1987) © 1987 S. Kargcr A G . Basel 0 0 1 5 - 5 7 1 3/87/0484-0207S2.75/0 Manipulation of Food Calls in Captive Chimpanzees A Preliminary Report Marc D. Hauser, Richard W. Wrangham Evolution and Human Behavior Program, University...
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Folia Primatol (1986) 47 (2-3): 128–142.
Published Online: 11 September 2008
...Cheryl Miller; Kim A. Bard; Charles J. Juno; Ronald D. Nadler Behavioral responsiveness to a novel environment was documented in 22 chimpanzees grouped according to age; 6-months, 1-year, 2-years and 5-years. An attachment figure, a human caretaker, accompanied each subject during the 15-min test...
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Folia Primatol (1986) 47 (1): 49–54.
Published Online: 11 September 2008
...Andrea Evans; Michael Tomasello A captive chimpanzee group was observed in order to determine the extent to which the social interactions of the infants and juveniles (18–50 months) were affected by their mothers’ relationships with other adult group members. It was found that the young chimpanzees...
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Folia Primatol (1973) 19 (5): 360–367.
Published Online: 11 September 2008
... of the human blood factors Rh o hr’ as well as rh’ , rh” and hr” are lacking in orangutan red cells which are, therefore, comparable to the human Rh null red cells. In the search for homologues of chimpanzee C-E-F blood groups in other ape species, tests on 15 gorillas disclosed the presence in gorillas...
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Folia Primatol (1977) 27 (1): 68–74.
Published Online: 10 September 2008
...A.S. Wiener; W.W. Socha; J. Moor-Jankowski Erythroblastosis fetalis represents a significant hazard for successful management of pregnancy in man and in marmosets, but not in crab-eating macaques. Materno-fetal blood group incompatibility in chimpanzee is described as a contributing factor...
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Folia Primatol (1978) 29 (2): 86–94.
Published Online: 10 September 2008
...Adrienne L. Zihlman; Douglas L. Cramer Skeletal dimensions of pygmy (Pan paniscus) and common (Pan troglodytes) chimpanzees were compared. Significant differences were found in the clavicles, scapulae, pelvises, and in the humerus/femur and femur head/length ratios. No significant differences were...