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Author |
Feist, J.D.; McCullough, D.R. |
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Title |
Reproduction in feral horses |
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Journal Article |
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Year |
1975 |
Publication |
Journal of Reproduction and Fertility. Supplement |
Abbreviated Journal |
J Reprod Fertil Suppl |
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Volume |
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Issue |
23 |
Pages |
13-18 |
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Keywords |
Age Factors; Animals; Female; Horses/*physiology; Leadership; Male; Maternal Behavior; Population; Reproduction; *Sexual Behavior, Animal; Social Dominance; Sucking Behavior |
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Abstract |
A behavioural study of feral horses was conducted on the Pryor Mountain Wild Horse Range in the western United States. All 270 horses on the Range were identified individually. The sex ratio was nearly balanced. Foal to adult female ratio was 43-2:100. Morality was concentrated among foals and old horses. Horses were organized as forty-four harem groups each with a dominant stallion, one to two immature stallions, one to three immature mares, one to three adult mares and their yearling and foal offspring, and 23 bachelor groups of one to eight stallions. Harem groups were quite stable year-round because of dominance and leadership by the stallions and group fidelity by mares and their offsring. Most changes occurred during the breeding season and involved immature females. Defeat of dominant stallions was infrequent. Immature males were tolerated because of their submissive behaviour. Bachelor stallion groups were inherently unstable. Mares came into heat after foaling in May/June, and were mated by harem stallions only. |
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0449-3087 |
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PMID:1060766 |
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refbase @ user @ |
Serial |
1964 |
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Author |
Mori, U. |
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Title |
Ecological and sociological studies of gelada baboons. Inter-unit relationships |
Type |
Journal Article |
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Year |
1979 |
Publication |
Contributions to Primatology |
Abbreviated Journal |
Contrib Primatol |
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Volume |
16 |
Issue |
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Pages |
83-92 |
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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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2047 |
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Author |
Mori, U. |
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Title |
Ecological and sociological studies of gelada baboons. Unit formation and the emergence of a new leader |
Type |
Journal Article |
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Year |
1979 |
Publication |
Contributions to Primatology |
Abbreviated Journal |
Contrib Primatol |
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Volume |
16 |
Issue |
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Pages |
155-181 |
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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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2048 |
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Author |
Hinde, R.A. |
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Title |
Analyzing the roles of the partners in a behavioral interaction--mother-infant relations in rhesus macaques |
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Journal Article |
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Year |
1969 |
Publication |
Annals of the New York Academy of Sciences |
Abbreviated Journal |
Ann N Y Acad Sci |
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Volume |
159 |
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3 |
Pages |
651-667 |
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Keywords |
Age Factors; Animals; *Behavior, Animal; Female; Group Processes; Haplorhini; Leadership; Maternal Deprivation; *Mother-Child Relations; *Role; Time Factors |
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0077-8923 |
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Notes |
PMID:4981882 |
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2054 |
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Author |
Alexander, B.K.; Bowers, J.M. |
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Title |
Social organization of a troop of Japanese monkeys in a two-acre enclosure |
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Journal Article |
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Year |
1969 |
Publication |
Folia Primatologica; International Journal of Primatology |
Abbreviated Journal |
Folia Primatol (Basel) |
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10 |
Issue |
3 |
Pages |
230-242 |
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Keywords |
Animals; *Behavior, Animal; *Haplorhini; Leadership; *Social Behavior |
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0015-5713 |
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Notes |
PMID:4976202 |
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2055 |
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Author |
Kawamura, S. |
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Title |
Aggression as studied in troops of Japanese monkeys |
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Journal Article |
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Year |
1967 |
Publication |
UCLA Forum in Medical Sciences |
Abbreviated Journal |
UCLA Forum Med Sci |
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Volume |
7 |
Issue |
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Pages |
195-223 |
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Keywords |
*Aggression; Animals; Behavior, Animal; Defense Mechanisms; Female; *Haplorhini; Homosexuality; Humans; Japan; Leadership; Male; Play and Playthings; Sexual Behavior, Animal; Social Behavior; Socialization |
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0082-7134 |
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Notes |
PMID:4972333 |
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Serial |
2056 |
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Author |
Gilbert, B.K.; Hailman, J.P. |
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Title |
Uncertainty of leadership-rank in fallow deer |
Type |
Journal Article |
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Year |
1966 |
Publication |
Nature |
Abbreviated Journal |
Nature |
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Volume |
209 |
Issue |
5027 |
Pages |
1041-1042 |
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Keywords |
Animals; Artiodactyla; *Behavior, Animal; Female; *Leadership; Pregnancy |
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0028-0836 |
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Notes |
PMID:5927524 |
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Serial |
2057 |
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Author |
Rudran, R. |
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Title |
Adult male replacement in one-male troops of purple-faced langurs (Presbytis senex senex) and its effect on population structure |
Type |
Journal Article |
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Year |
1973 |
Publication |
Folia Primatologica; International Journal of Primatology |
Abbreviated Journal |
Folia Primatol (Basel) |
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Volume |
19 |
Issue |
2 |
Pages |
166-192 |
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Keywords |
Age Factors; Aggression; Animals; *Behavior, Animal; Female; *Haplorhini; Humans; Leadership; Male; Maternal Behavior; Population Density; Sex Factors; *Social Behavior; Social Dominance |
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0015-5713 |
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Notes |
PMID:4201908 |
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Call Number |
Equine Behaviour @ team @ |
Serial |
4182 |
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Author |
Menzel, E.W.J. |
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Title |
Communication about the environment in a group of young chimpanzees |
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Journal Article |
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Year |
1971 |
Publication |
Folia Primatologica; International Journal of Primatology |
Abbreviated Journal |
Folia Primatol (Basel) |
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Volume |
15 |
Issue |
3 |
Pages |
220-232 |
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Keywords |
*Animal Communication; Animals; Environment; Fear; Leadership; *Pan troglodytes; Problem Solving; Social Behavior; Species Specificity; Vocalization, Animal |
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0015-5713 |
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PMID:5120654 |
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Equine Behaviour @ team @ |
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4184 |
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Author |
Sarova, R.; Spinka, M.; Panama, J.L.A. |
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Title |
Synchronization and leadership in switches between resting and activity in a beef cattle herd--A case study |
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Journal Article |
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Year |
2007 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
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Volume |
108 |
Issue |
3-4 |
Pages |
327-331 |
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Keywords |
Beef cattle; Activity synchronization; Leadership; Dominance |
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Abstract |
The mechanisms of activity synchronization in group living ungulates are not well understood. In a case study on herd of 15 Gasconne beef cows with calves observed during a total of 25 summer daylight periods in 2004 and 2005, we examined whether cows similar to each other in body weight or in reproductive status were more synchronized and whether the timing of activity switches were determined by specific leading animals. We calculated the synchronization of all possible pairs of cows in the herd and tested the effects of similarity in body weight and in reproductive status (lactating versus non-lactating) on synchronization in the pair. Further, we assessed whether any specific individuals, and especially the dominant cows, were more able, through their own activity switch, to incite another cow to follow shortly with her switch in activity. We found that body weight differences had a negative influence on pair synchronization (GLMM, F1,65 = 6.79; p < 0.05), but reproductive status did not affect the synchronization. Cows' individual identity explained only a small proportion (<2%) of variability in intervals between switches of subsequent cows. Furthermore, dominance status of an individual cow did not correlate with mean interval between her activity switches and activity switches of the next cow (lying down: Spearman correlation, rs = -0.16, n = 14, p > 0.10; standing up: Spearman correlation, rs = -0.38, n = 14, p > 0.10), indicating that there were no leading animals initiating switches in activity in our herd. |
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2025 |
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