Records |
Author |
Stoinski, T.S.; Wrate, J.L.; Ure, N.; Whiten, A. |
Title |
Imitative learning by captive western lowland gorillas (Gorilla gorilla gorilla) in a simulated food-processing task |
Type |
Journal Article |
Year |
2001 |
Publication |
Journal of comparative psychology (Washington, D.C. : 1983) |
Abbreviated Journal |
J Comp Psychol |
Volume |
115 |
Issue |
3 |
Pages |
272-281 |
Keywords |
Animals; Behavior, Animal/physiology; *Discrimination Learning; Feeding Behavior/*physiology; Gorilla gorilla; *Imitative Behavior; Social Behavior |
Abstract |
Although field studies have suggested the existence of cultural transmission of foraging techniques in primates, identification of transmission mechanisms has remained elusive. To test experimentally for evidence of imitation in the current study, we exposed gorillas (Gorilla gorilla gorilla) to an artificial fruit foraging task designed by A. Whiten and D. M. Custance (1996). Gorillas (n=6) watched a human model remove a series of 3 defenses around a fruit. Each of the defenses was removed using 1 of 2 alternative techniques. Subsequent video analysis of gorillas' behavior showed a significant tendency to copy the observed technique on 1 of the individual defenses and the direction of removal on another defense. This is the first statistically reliable evidence of imitation in gorillas. Sequence of defense removal was not replicated. The gorillas' responses were most similar to those of chimpanzees. |
Address |
TECHlab, Zoo Atlanta, Georgia 30315, USA. stoinskit@mindspring.com |
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ISSN |
0735-7036 |
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PMID:11594496 |
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no |
Call Number |
refbase @ user @ |
Serial |
738 |
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Author |
Soproni, K.; Miklósi, A.; Topál, J.; Csányi, V. |
Title |
Comprehension of human communicative signs in pet dogs (Canis familiaris) |
Type |
Journal Article |
Year |
2001 |
Publication |
Journal of Comparative Psychology (Washington, D.C. : 1983) |
Abbreviated Journal |
J Comp Psychol |
Volume |
115 |
Issue |
2 |
Pages |
122-126 |
Keywords |
Animals; *Behavior, Animal; Choice Behavior; Dogs/*psychology; Female; Humans; Male; Nonverbal Communication/*psychology; *Recognition (Psychology); *Social Behavior |
Abstract |
On the basis of a study by D. J. Povinelli, D. T. Bierschwale, and C. G. Cech (1999), the performance of family dogs (Canis familiaris) was examined in a 2-way food choice task in which 4 types of directional cues were given by the experimenter: pointing and gazing, head-nodding (“at target”), head turning above the correct container (“above target”), and glancing only (“eyes only”). The results showed that the performance of the dogs resembled more closely that of the children in D. J. Povinelli et al.'s study, in contrast to the chimpanzees' performance in the same study. It seems that dogs, like children, interpret the test situation as being a form of communication. The hypothesis is that this similarity is attributable to the social experience and acquired social routines in dogs because they spend more time in close contact with humans than apes do, and as a result dogs are probably more experienced in the recognition of human gestures. |
Address |
Department of Ethology, Budapest, Hungary. lavina@ludens.elte.hu |
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0735-7036 |
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PMID:11459158 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
4963 |
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Author |
Klingel, H. |
Title |
Social organization and reproduction in equids |
Type |
Journal Article |
Year |
1975 |
Publication |
Journal of Reproduction and Fertility. Supplement |
Abbreviated Journal |
J Reprod Fertil Suppl |
Volume |
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Issue |
23 |
Pages |
7-11 |
Keywords |
Animals; Behavior, Animal; Female; Male; Perissodactyla/*physiology; Reproduction; *Sexual Behavior, Animal; Social Behavior; Territoriality |
Abstract |
There are two distinct types of social organization and, accordingly, two types of mating systems in equids. In the horse, Plains zebra and Mountain zebra, the adults live in non-territorial and cohesive one-male groups and in stallion groups. The family stallions have exclusive mating rights which are respected by all others. In Grevy's zebra and in the African and Asiatic wild asses, the stallions are permanently territorial and have exclusive mating rights within their territories. Ecological and evolutionary aspects are discussed. |
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ISSN |
0449-3087 |
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Notes |
PMID:1060868 |
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no |
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Equine Behaviour @ team @ |
Serial |
2303 |
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Author |
Klingel, H. |
Title |
Social organization of feral horses |
Type |
Journal Article |
Year |
1982 |
Publication |
Journal of Reproduction and Fertility. Supplement |
Abbreviated Journal |
J Reprod Fertil Suppl |
Volume |
32 |
Issue |
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Pages |
89-95 |
Keywords |
Animals; Animals, Wild; Female; Horses/*physiology; Male; Sexual Behavior, Animal; *Social Behavior; Territoriality |
Abstract |
The basic social unit in feral horses is the family group consisting of one stallion, one to a few unrelated mares and their foals. Surplus stallions associate in bachelor groups. Stallions are instrumental in bringing mares together in a unit which then persists even without a stallion. The similarity of social organization in populations living in a variety of different habitats indicates that feral horses have reverted to the habits of their wild ancestors, and that domestication has had no influence on this basic behavioural feature. |
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0449-3087 |
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Notes |
PMID:6962906 |
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no |
Call Number |
refbase @ user @ |
Serial |
1958 |
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Author |
Waran, N.K. |
Title |
Can studies of feral horse behaviour be used for assessing domestic horse welfare? |
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Year |
1997 |
Publication |
Equine Veterinary Journal |
Abbreviated Journal |
Equine Vet J |
Volume |
29 |
Issue |
4 |
Pages |
249-251 |
Keywords |
Animal Husbandry/methods; *Animal Welfare; Animals; Animals, Domestic; Animals, Wild; *Behavior, Animal; Horses/*psychology; Social Behavior |
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Edition |
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ISSN |
0425-1644 |
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Notes |
PMID:15338901 |
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no |
Call Number |
refbase @ user @ |
Serial |
1936 |
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Author |
Kaseda, Y.; Ogawa, H.; Khalil, A.M. |
Title |
Causes of natal dispersal and emigration and their effects on harem formation in Misaki feral horses |
Type |
Journal Article |
Year |
1997 |
Publication |
Equine Veterinary Journal |
Abbreviated Journal |
Equine Vet J |
Volume |
29 |
Issue |
4 |
Pages |
262-266 |
Keywords |
Age Factors; Animal Migration; Animals; Animals, Wild; *Behavior, Animal/physiology; Female; Horses/*physiology/psychology; Male; Reproduction; Seasons; Sexual Behavior, Animal; *Social Behavior |
Abstract |
Misaki feral horses were separated into 2 herds and the difference between dispersal from natal group (natal dispersal) and dispersal from natal area (natal emigration) was studied. The causes of dispersal and emigration and their effects on harem formation were studied 1979-1994. The number of horses ranged from 73 (mature males: 8, mature females: 26, young males: 8, young females: 3, colt foals: 6, filly foals: 10 and geldings: 12) in 1979 and 86 (mature males: 14, mature females: 37, young males: 12, young females: 7, colt foals: 5, filly foals: 7 and geldings: 4) in 1994 when the present study ended. All 29 males which survived to age 4 years and 58 females which survived to age 3 years left their natal or mother groups at age one to 3. Seventeen of 22 dispersing males and 29 of 39 dispersing females left their natal groups around the birth of their siblings and significant correlations were found between natal dispersal and birth of a sibling. The number of emigrating young males correlated negatively and significantly with the total number of young males in another herd and the number of emigrating young females correlated positively and significantly with the total number of young females in the natal herd. All 13 emigrating stallions which survived to age 5 years formed stable harem groups and a significant correlation was found between natal emigration and harem formation. Twenty-three of 35 resident mares formed stable consort relations with harem stallions and a significant correlation was found between residence and formation of stable consort relations. |
Address |
Faculty of Agriculture, Miyazaki University, Miyazaki-shi, 889-21, Japan |
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0425-1644 |
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Notes |
PMID:15338905 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
4630 |
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Author |
Hirata, S. |
Title |
A note on the responses of chimpanzees (Pan troglodytes) to live self-images on television monitors |
Type |
Journal Article |
Year |
2007 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
Volume |
75 |
Issue |
1 |
Pages |
85-90 |
Keywords |
Animals; *Discrimination Learning; Female; Male; Pan troglodytes/*psychology; *Self Concept; Self Psychology; Social Behavior; Television |
Abstract |
The majority of studies on self-recognition in animals have been conducted using a mirror as the test device; little is known, however, about the responses of non-human primates toward their own images in media other than mirrors. This study provides preliminary data on the reactions of 10 chimpanzees to live self-images projected on two television monitors, each connected to a different video camera. Chimpanzees could see live images of their own faces, which were approximately life-sized, on one monitor. On the other monitor, they could see live images of their whole body, which were approximately one-fifth life-size, viewed diagonally from behind. In addition, several objects were introduced into the test situation. Out of 10 chimpanzees tested, 2 individuals performed self-exploratory behaviors while watching their own images on the monitors. One of these two chimpanzees successively picked up two of the provided objects in front of a monitor, and watched the images of these objects on the monitor. The results indicate that these chimpanzees were able to immediately recognize live images of themselves or objects on the monitors, even though several features of these images differed from those of their previous experience with mirrors. |
Address |
Great Ape Research Institute, Hayashibara Biochemical Laboratories Inc., Okayama, Japan. hirata@gari.be.to |
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0376-6357 |
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PMID:17324534 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
4145 |
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Author |
Mori, U. |
Title |
Ecological and sociological studies of gelada baboons. Individual relationships within a unit |
Type |
Journal Article |
Year |
1979 |
Publication |
Contributions to Primatology |
Abbreviated Journal |
Contrib Primatol |
Volume |
16 |
Issue |
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Pages |
93-124 |
Keywords |
Animals; Female; Grooming; *Haplorhini; *Leadership; Male; Paternal Behavior; *Social Behavior; *Theropithecus |
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0301-4231 |
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PMID:101345 |
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no |
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2046 |
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Author |
Mori, U. |
Title |
Ecological and sociological studies of gelada baboons. Inter-unit relationships |
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Journal Article |
Year |
1979 |
Publication |
Contributions to Primatology |
Abbreviated Journal |
Contrib Primatol |
Volume |
16 |
Issue |
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Pages |
83-92 |
Keywords |
Animals; Female; *Haplorhini; Leadership; Sex Factors; *Social Behavior; Social Distance; *Theropithecus |
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0301-4231 |
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PMID:101344 |
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Call Number |
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Serial |
2047 |
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Author |
Mori, U. |
Title |
Ecological and sociological studies of gelada baboons. Unit formation and the emergence of a new leader |
Type |
Journal Article |
Year |
1979 |
Publication |
Contributions to Primatology |
Abbreviated Journal |
Contrib Primatol |
Volume |
16 |
Issue |
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Pages |
155-181 |
Keywords |
Animals; Female; Grooming; *Haplorhini; Leadership; Male; *Social Behavior; Social Distance; *Theropithecus |
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0301-4231 |
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PMID:101335 |
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Call Number |
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Serial |
2048 |
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