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Author Walker, S.
Title An introduction to animal cognition : By . Hillsdale, New Jersey: Lawrence Erlbaum (1988). Pp. viii + 328. Price [pound sign]8.95 paperback Type Journal Article
Year (up) 1989 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.
Volume 37 Issue Part 3 Pages 521-522
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 2922
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Author McCall, C.A.
Title The effect of body condition of horses on discrimination learning abilities Type Journal Article
Year (up) 1989 Publication Applied Animal Behaviour Science Abbreviated Journal Appl. Anim. Behav. Sci.
Volume 22 Issue 3-4 Pages 327-334
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Abstract Discriminative learning abilities were studied in 12 mature, malnourished horses. All horses initially received a condition score (CS) between 2 and 4 on a scale of 1 (poor) to 9 (extremely fat). Then horses were assigned to one of 3 treatments based on their eventual, rehabilitated CS during discrimination testing: thin, CS 1-3; moderate, CS 4-6; and fat, CS 7-9. The discrimination learning task was performed for 14 days with a maximum of 20 trials per day. Daily criterion was set at eight consecutively correct trails. Total trials to first criteria and total errors during testing were recorded. Analysis of variance showed that treatments did not differ (P>0.05) in total trials to first criterion, however horses on the fat treatment did have higher total error scores (P<0.05) than horses on the thin or moderate treatments. This difference was probably owing to lack of motivation in the fat treatment horses, rather than to true learning ability differences. The sex of the horse did not significantly affect either learning score.
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Call Number Equine Behaviour @ team @ Serial 3570
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Author Daniels, T.J.; Bekoff, M.
Title Feralization: The making of wild domestic animals Type Journal Article
Year (up) 1989 Publication Behavioural Processes Abbreviated Journal Behav. Process.
Volume 19 Issue 1-3 Pages 79-94
Keywords feralization; domestication; feral dogs
Abstract The widely accepted viewpoint that feralization is the reverse of domestication requires that the feralization process be restricted to populations of animals and, therefore, cannot occur in individuals. An alternative, ontogenetic approach is presented in which feralization is defined as the process by which individual domestic animals either become desocialized from humans, or never become socialized, and thus behave as untamed, non-domestic animals. Feralization will vary among species and, intraspecifically, will depend upon an individual's age and history of socialization to humans. Because feralization is not equated with morphological change resulting from evolutionary processes, species formation is not an accurate indicator of feral condition.
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Notes Cited By (since 1996): 5; Export Date: 24 October 2008 Approved no
Call Number Admin @ knut @ Serial 4580
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Author Cheney, D.L.; Seyfarth, R.M.
Title Reconciliation and redirected aggression in vervet monkeys, Behaviour Type Journal Article
Year (up) 1989 Publication Behaviour Abbreviated Journal Behaviour
Volume 110 Issue Pages 258-275
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Call Number Equine Behaviour @ team @ Serial 4865
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Author Kondo, S.; Sekine, J.; Okubo, M.; Asahida, Y.
Title The effect of group size and space allowance on the agonistic and spacing behavior of cattle Type Journal Article
Year (up) 1989 Publication Applied Animal Behaviour Science Abbreviated Journal Appl. Anim. Behav. Sci.
Volume 24 Issue 2 Pages 127-135
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Abstract The number of agonistic encounters in a group (frequency per h) and the mean distance to the nearest neighbor in a group (m) were analyzed by a multiple regression on the group size (number of animals in a group) and space allowance (m3 per animal) in each group of calves (6–13 months old, Holstein female and castrated male) and adult cattle (2–12 years old, Holstein heifers and cows or Holstein and Hereford grazing beef cattle). A total of 196 calves and 602 adult animals were used in this analysis. In calves, a significant correlation was found between agonistic behavior and space allowance (r=-0.48, P<0.01), but not between agonistic behavior and group sizes. The mean distance to the nearest neighbor in calf groups increased as the group size decreased and space allowance increased (R2=0.66, P<0.01). In adult cattle, the number of agonistic encounters increased linearly as the group size increased (r=+0.37, P<0.05). The relationship between agonistic behavior and 1(space allowance)2 was significant (r=+0.48, P<0.05). The mean distance to the nearest neighbor tended to increase as the group size decreased and the space allowance increased (R2=0.68, P<0.01). When the space allowance increased beyond 360 m2 per animal, the average distance to the nearest neighbor in the adult group was maintained within the range of 10–12 m.
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ISSN 0168-1591 ISBN Medium
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Call Number Equine Behaviour @ team @ Serial 5473
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Author Rutberg, A.T.; Greenberg, S.A.
Title Dominance, aggression frequencies and modes of aggressive competition in feral pony mares Type Journal Article
Year (up) 1990 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.
Volume 40 Issue 2 Pages 322-331
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Abstract Feral pony mares, Equus caballus, at Assateague Island, Maryland, formed linear dominance hierarchies within bands. Generally, older mares dominated younger mares, and larger mares dominated smaller mares. Large mares initiated aggression more often than small mares when age was controlled for but, surprisingly, older mares initiated aggression less often than younger mares when size was controlled for. Thus, mares peak in aggressiveness fairly soon after achieving full size and then, while maintaining or improving their rank in the domainance hierarchy, progressively reduce their involvement in aggression as they grow older, Involvement in aggression per mare increased as number of mares in the group increased; this effect was independent of nearest-mare distances. Frequency of involvement in aggression did not differ between mares that had changed bands within the year and mares whose band association had continued for a year or more. Aggression was directed more frequently than expected at subordinate mares who were nursing, and also occurred more frequently than expected at water holes. The proportion of aggressive encounters during grazing closely matched the total proportion of time spent grazing. Subordinate mares with foals received aggression more often than subordinate mares without foals. The high frequency of aggression associated with foals and nursing suggests that interference with reproduction of subordiantes is an important mode of competition between mares. Such interference may be common in animals that feed on dispersed resources and live in small, cohesive groups.
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Call Number refbase @ user @ Serial 755
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Author Janson, C.H.
Title Social correlates of individual spatial choice in foraging groups of brown capuchin monkeys, Cebus apella Type Journal Article
Year (up) 1990 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.
Volume 40 Issue 5 Pages 910-921
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Abstract Individuals in a foraging group of wild bronwn capuchin monkeys choose different spatial positions relative to the rest of the group. Markov analysis of sequencess of individual spatial positions demonstrated significant differnces between individuals, which coul be categorized a posteriori into four homogenous subgroups. An individual's spatial position was related primarily to the amount of aggression it received from the group's dominant male, but also varied with its sex. Spatial choice varied with changes in an individual's social status, but did not vary consistently with seasonal differences in food availability. These results support the hypothesis that individuals compete for preferred spatial positions within a foraging group.
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Call Number refbase @ user @ Serial 773
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Author Janson, C.H.
Title Ecological consequences of individual spatial choice in foraging groups of brown capuchin monkeys, Cebus apella Type Journal Article
Year (up) 1990 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.
Volume 40 Issue 5 Pages 922-934
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Abstract Individuals in a foraging group of brown capuchin monkeys choose different spatial positions relative to the rest of the group. An individual's choice of spatial positiion affects its foraging success and perceived predation risk (as measured by vigilance behaviour). The two most dominant group members preferred to forage where their expected forwaging success was greatest. Juveniles chose to forage where their perceived predation risk was least, not where they would achieve the highest foraging success. The positions used by non-dominant adults neither maximized foraging success nor minimized predation risk. It is likely that subordinate adults accept spatial positions with suboptimal ecological consequences to avoid the costs of frequent confrontations with the dominant members of the group over foraging sites in poreferred positions.
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Call Number refbase @ user @ Serial 774
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Author Becker, C. D.; Ginsberg, J. R.
Title Mother-infant behaviour of wild Grevy's zebra: adaptations for survival in semidesert East Africa Type Journal Article
Year (up) 1990 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.
Volume 40 Issue 6 Pages 1111-1118
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Abstract Mother-infant interactions and patterns of foal behaviour in the Grevy's zebra, Equus grevyi, differe from those reported for other equids. Grevy's zebra foals exhibit longer intervals between suckling bouts, do not drink water until they are 3 months old, and reach independence from the mare sooner than other equids. Furthermore, Grevy's zebra foals advance their acquisition of adult feeding behaviour. A 6-week-old Grevy's zebra foal spends as much time feeding as a 5-month-old wild horse foal. From the time their foals are born until the foals reach an age of 3 months, females form small groups (three females and their foals). These groups are never found further than 2·0 km from surface water and are usually associated with a territorial male. Unlike other equids, the foals of which always follow their mares, when female Grevy's zebra go to drink, they leave their foals in “kindergartens”, which are guarded by a single adult animal, usually a territorial male. It is proposed that many of these differences in behaviour and rates of juvenile development are the result of adaptation to an arid environment. Water requirements during early lactation appear to influence strongly the social behaviour of the Grevy's zebra and should also be a strong influence on the mother-infant behaviour of other arid-living ungulates.
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Notes from Professor Hans Klingels Equine Reference List Approved yes
Call Number Serial 927
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Author Feh, C,
Title Long-term paternity data in relation to different aspects of rank for Camargue stallions, Equus caballus Type Journal Article
Year (up) 1990 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.
Volume 40 Issue 5 Pages 995-996
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Notes from Professor Hans Klingels Equine Reference List Approved yes
Call Number Serial 1081
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