| Records |
| Author |
Søndergaard, E.; Jensen, M.B.; Nicol, C.J. |
| Title |
Motivation for social contact in horses measured by operant conditioning |
Type |
Journal Article |
Year  |
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Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
| Volume |
In Press, Corrected Proof |
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| Keywords |
Horse; Housing; Social behaviour; Operant conditioning; Motivation |
| Abstract |
Although horses are social animals they are often housed individually with limited social contact to other horses and this may compromise their welfare. The present study included eight young female horses and investigated the strength of motivation for access to full social contact, head contact and muzzle contact, respectively, to a familiar companion horse. Horses were housed individually next to their companion horse and separations between pens prevented physical contact. During daily test sessions horses were brought to a test area where they could access an arena allowing social contact. Arena access during 3 min was given after completion of a predetermined number of responses on a panel. Fixed ratios (FR) of 8, 16, 24, 32 and 40 responses per arena access were applied in a random order, one per daily test session, within each test week (Monday to Friday), and the number of rewards per daily test session was recorded. All horses could access all three types of social contact in a cross-over design, and an empty arena was used as control. Motivational strength was assessed using elasticity of demand functions, which were estimated based on the number of rewards earned and FR. Elasticities of demand for the three types of social contact were low (-0.20), and not significantly different, although increasing FR still resulted in a decrease in rewards obtained for all three types of social contact (P < 0.001). Across FR-levels horses earned more rewards for social contact than for an empty arena, as shown by much higher intercept values (2.51 vs. 0.99; P < 0.001). However, the elasticity of demand for infrequent access to an empty arena (-0.08) was lower than for social contact (P < 0.01) and not significantly different from zero (P = 0.07). Horses performed more social behaviour the lesser the restriction on social contact (full > head > muzzle). However, the finding that horses showed a similar and high motivation for all three types of social contact suggests that they are valued equally highly in a situation where the alternative is no social contact. |
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0168-1591 |
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Equine Behaviour @ team @ |
Serial |
5388 |
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| Author |
Hartmann, E.; Søndergaard, E.; Keeling, L.J. |
| Title |
Keeping horses in groups: A review |
Type |
Journal Article |
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Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
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| Keywords |
Equine; Behaviour; Welfare; Housing; Social |
| Abstract |
Although husbandry conditions for horses have improved over the last decades, many horses are still kept singly with limited or no physical contact to other horses. This is surprising, given the fact that keeping horses in groups is recognised best to fulfil their physical and behavioural needs, especially their need for social contact with conspecifics, as well as to have a beneficial effect on horse–human interactions during training. Group housing of farm animals is widely applied in practice. As a consequence, scientists have investigated numerous aspects of group housing to help further improve animal welfare and human–animal interactions under these conditions. However, compared to this literature available in farm animals, and the plentiful studies conducted of feral horse populations, there is much less done when it comes to the management of horses kept in groups in the domestic environment. In particular, limited scientific information is available into the effect of group size and group composition on behaviour and methods of introducing new horses into established groups, even though problems related to social integration are repeatedly taken as arguments against keeping horses in groups. This review, therefore, aims to provide an overview of the current scientific knowledge regarding keeping horses in groups. Furthermore, it aims to give insight into whether or not some of the concerns related to keeping horses in groups are justified and to review scientifically based solutions that could be useful in practice to improve horse welfare and human safety. |
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0168-1591 |
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Equine Behaviour @ team @ |
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5490 |
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| Author |
Hasenjager, M.J.; Dugatkin, L.A. |
| Title |
Social Network Analysis in Behavioral Ecology |
Type |
Book Chapter |
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Animal personalities; Animal social networks; Collective behavior; Cooperation; Dynamic networks; Emergent properties; Network theory; Social behavior; Social learning; Social structure |
| Abstract |
Abstract In recent years, behavioral ecologists have embraced social network analysis (SNA) in order to explore the structure of animal societies and the functional consequences of that structure. We provide a conceptual introduction to the field that focuses on historical developments, as well as on novel insights generated by recent work. First, we discuss major advances in the analysis of nonhuman societies, culminating in the use of SNA by behavioral ecologists. Next, we discuss how network-based approaches have enhanced our understanding of social structure and behavior over the past decade, focusing on: (1) information transmission, (2) collective behaviors, (3) animal personality, and (4) cooperation. These behaviors and phenomena possess several features—e.g., indirect effects, emergent properties—that network analysis is well equipped to handle. Finally, we highlight recent developments in SNA that are allowing behavioral ecologists to address increasingly sophisticated questions regarding the structure and function of animal sociality. |
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Academic Press |
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Advances in the Study of Behavior |
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Equine Behaviour @ team @ Hasenjager |
Serial |
5863 |
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| Author |
Selva, N.; Cortés-Avizanda, A.; Lemus, J.A.; Blanco, G.; Mueller, T.; Heinrich, B.; Donázar, J.A. |
| Title |
Stress associated with group living in a long-lived bird |
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Journal Article |
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Publication |
Biology Letters |
Abbreviated Journal |
Biol Lett |
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Biał owież a forest common raven Corvus corax glucocorticoids parasites sociality |
| Abstract |
Many long-lived avian species adopt life strategies that involve a gregarious way of life at juvenile and sub-adult stages and territoriality during adulthood. However, the potential associated costs of these life styles, such as stress, are poorly understood. We examined the effects of group living, sex and parasite load on the baseline concentration of faecal stress hormone (corticosterone) metabolites in a wild population of common ravens (Corvus corax). Corticosterone concentrations were significantly higher in non-breeding gregarious ravens than in territorial adults. Among territorial birds, males showed higher stress levels than their mates. Parasite burdens did not affect hormone levels. Our results suggest a key role of the social context in the stress profiles of the two population fractions, and that group living may be more energetically demanding than maintaining a territory. These findings have implications for understanding hormonal mechanisms under different life styles and may inspire further research on the link between hormone levels and selective pressures modulating gregarious and territorial strategies in long-lived birds. |
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10.1098/rsbl.2010.1204 |
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Equine Behaviour @ team @ |
Serial |
5292 |
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| Author |
Kawamura, S. |
| Title |
Aggression as studied in troops of Japanese monkeys |
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Journal Article |
| Year |
1967 |
Publication |
UCLA Forum in Medical Sciences |
Abbreviated Journal |
UCLA Forum Med Sci |
| Volume |
7 |
Issue |
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Pages |
195-223 |
| 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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English |
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0082-7134 |
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PMID:4972333 |
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no |
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2056 |
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| Author |
Salzen, E.A.; Cornell, J.M. |
| Title |
Self-perception and species recognition in birds |
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Journal Article |
| Year |
1968 |
Publication |
Behaviour |
Abbreviated Journal |
Behaviour |
| Volume |
30 |
Issue |
1 |
Pages |
44-65 |
| Keywords |
Animals; Birds; Color Perception; Discrimination Learning; Generalization, Response; Imprinting (Psychology); *Perception; *Self Concept; Social Isolation; *Species Specificity; Water |
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0005-7959 |
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PMID:5644775 |
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no |
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Equine Behaviour @ team @ |
Serial |
4154 |
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| Author |
Alexander, B.K.; Bowers, J.M. |
| Title |
Social organization of a troop of Japanese monkeys in a two-acre enclosure |
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Journal Article |
| Year |
1969 |
Publication |
Folia Primatologica; International Journal of Primatology |
Abbreviated Journal |
Folia Primatol (Basel) |
| Volume |
10 |
Issue |
3 |
Pages |
230-242 |
| Keywords |
Animals; *Behavior, Animal; *Haplorhini; Leadership; *Social Behavior |
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0015-5713 |
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PMID:4976202 |
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no |
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2055 |
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Saayman, G.S. |
| Title |
Behaviour of the adult males in a troop of free-ranging Chacma baboons (Papio ursinus) |
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Journal Article |
| Year |
1971 |
Publication |
Folia Primatologica; International Journal of Primatology |
Abbreviated Journal |
Folia Primatol (Basel) |
| Volume |
15 |
Issue |
1 |
Pages |
36-57 |
| Keywords |
Aggression; Animals; *Behavior, Animal; Female; Grooming; *Haplorhini; Homing Behavior; Humans; Leadership; Male; Papio; Pregnancy; Sex Factors; *Sexual Behavior, Animal; Social Dominance |
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0015-5713 |
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PMID:5003339 |
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no |
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2053 |
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| Author |
Menzel, E.W.J. |
| Title |
Communication about the environment in a group of young chimpanzees |
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Journal Article |
| Year |
1971 |
Publication |
Folia Primatologica; International Journal of Primatology |
Abbreviated Journal |
Folia Primatol (Basel) |
| Volume |
15 |
Issue |
3 |
Pages |
220-232 |
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*Animal Communication; Animals; Environment; Fear; Leadership; *Pan troglodytes; Problem Solving; Social Behavior; Species Specificity; Vocalization, Animal |
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English |
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0015-5713 |
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PMID:5120654 |
Approved |
no |
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Equine Behaviour @ team @ |
Serial |
4184 |
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| Author |
Kiley, M. |
| Title |
The vocalizations of ungulates, their causation and function |
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Journal Article |
| Year |
1972 |
Publication |
Zeitschrift für Tierpsychologie |
Abbreviated Journal |
Z. Tierpsychol. |
| Volume |
31 |
Issue |
2 |
Pages |
171-222 |
| Keywords |
Aggression; Animals; *Artiodactyla; Cattle; Fear; Female; Frustration; Horses; Humans; Male; Pain; *Perissodactyla; Sexual Behavior, Animal; Social Behavior; Social Dominance; Swine; *Vocalization, Animal |
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English |
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0044-3573 |
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PMID:4674022 |
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no |
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refbase @ user @ |
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681 |
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