| Records |
Author  |
Houpt, K. A.; Kusonose, R. |
| Title |
Genetic of behaviour |
Type |
Book Chapter |
| Year |
2000 |
Publication |
Genetics of the Horse |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
281-306 |
| Keywords |
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| Abstract |
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| Address |
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| Corporate Author |
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Thesis |
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| Publisher |
Cab Intl |
Place of Publication |
Wallingford Oxfordshire |
Editor |
Bowling,A. T. ; Ruvinsky, A. |
| Language |
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Summary Language |
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Original Title |
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Series Title |
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Series Issue |
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Edition |
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| ISSN |
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ISBN |
978-0851994291 |
Medium |
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| Area |
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Expedition |
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Conference |
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| Notes |
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Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
5021 |
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| Author |
Houpt, K.; Kusunose, R. |
| Title |
Genetics of behaviour. |
Type |
Book Chapter |
| Year |
2000 |
Publication |
The Genetics of the Horse |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
281-306 |
| Keywords |
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| Abstract |
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Thesis |
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| Publisher |
CABI Publishing |
Place of Publication |
New York |
Editor |
Bowling, A.T., Ruvinsky, A. |
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ISBN |
9780851994291 |
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| Notes |
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Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
4821 |
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| Author |
Houpt, K.; Marrow, M.; Seeliger, M. |
| Title |
A preliminary study of the effect of music on equine behavior |
Type |
Journal Article |
| Year |
2000 |
Publication |
Journal of Equine Veterinary Science |
Abbreviated Journal |
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| Volume |
20 |
Issue |
11 |
Pages |
691-737 |
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| Notes |
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Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
1988 |
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| Author |
Houpt, K.; Marrow, M.; Seeliger, M. |
| Title |
A preliminary study of the effect of music on equine behavior |
Type |
Journal Article |
| Year |
2000 |
Publication |
Journal of Equine Veterinary Science |
Abbreviated Journal |
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| Volume |
20 |
Issue |
11 |
Pages |
691-737 |
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Edition |
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| ISSN |
0737-0806 |
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| Notes |
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Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
6633 |
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| Author |
Houpt, K.A.; Eggleston, A.; Kunkle, K.; Houpt, T.R. |
| Title |
Effect of water restriction on equine behaviour and physiology |
Type |
Journal Article |
| Year |
2000 |
Publication |
Equine veterinary journal |
Abbreviated Journal |
Equine Vet J |
| Volume |
32 |
Issue |
4 |
Pages |
341-344 |
| Keywords |
Animals; *Behavior, Animal; Blood Proteins/analysis; Energy Intake; Female; Horse Diseases/physiopathology; Horses/*physiology; Osmolar Concentration; Pregnancy; Stress/veterinary; Video Recording; Water Deprivation/*physiology |
| Abstract |
Six pregnant mares were used to determine what level of water restriction causes physiological and/or behavioural changes indicative of stress. Nonlegume hay was fed ad libitum. During the first week of restriction, 5 l water/100 kg bwt was available, during the second week 4 l/100 kg bwt and, during the third week, 3 l/100 kg bwt. Ad libitum water intake was 6.9 l/100 kg bwt; at 3 l/100 kg bwt water intake was 42% of this. Daily hay intake fell significantly with increasing water restriction from 12.9 +/- 0.75 kg to 8.3 +/- 0.54 kg; bodyweight fell significantly for a total loss of 48.5 +/- 8.3 kg in 3 weeks. Daily blood samples were analysed; osmolality rose significantly with increasing water restriction from 282 +/- 0.7 mosmols/kg to 293.3 +/- 0.8 mosmols/kg bwt, but plasma protein and PCV did not change significantly. Cortisol concentrations fell from 8.1 ng/ml to 6.4 ng/ml over the 3 week period. Aldosterone fell from 211.3 +/- 74.2 pg/ml to 92.5 +/- 27.5 pg/ml at the end of the first week. The behaviour of 4 of the 6 mares was recorded 24 h/day for the duration of the study. The only significant difference was in time spent eating, which decreased with increasing water restriction from 46 +/- 3% to 30 +/- 3%. It is concluded that water restriction to 4 l/100 kg bwt dehydrates pregnant mares and may diminish their welfare, but is not life- or pregnancy-threatening. |
| Address |
Department of Physiology, College of Veterinary Medicine, Cornell University, Ithaca, New York 14853-6401, USA |
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| Language |
English |
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Edition |
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| ISSN |
0425-1644 |
ISBN |
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| Notes |
PMID:10952384 |
Approved |
no |
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refbase @ user @ |
Serial |
32 |
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| Author |
Janik, V.M. |
| Title |
Whistle matching in wild bottlenose dolphins (Tursiops truncatus) |
Type |
Journal Article |
| Year |
2000 |
Publication |
Science (New York, N.Y.) |
Abbreviated Journal |
Science |
| Volume |
289 |
Issue |
5483 |
Pages |
1355-1357 |
| Keywords |
Animals; Animals, Wild/physiology; Dolphins/*physiology; *Imitative Behavior; *Learning; *Social Behavior; *Vocalization, Animal |
| Abstract |
Dolphin communication is suspected to be complex, on the basis of their call repertoires, cognitive abilities, and ability to modify signals through vocal learning. Because of the difficulties involved in observing and recording individual cetaceans, very little is known about how they use their calls. This report shows that wild, unrestrained bottlenose dolphins use their learned whistles in matching interactions, in which an individual responds to a whistle of a conspecific by emitting the same whistle type. Vocal matching occurred over distances of up to 580 meters and is indicative of animals addressing each other individually. |
| Address |
School of Biology, University of St. Andrews, Bute Building, Fife KY16 9TS, UK |
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English |
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| ISSN |
0036-8075 |
ISBN |
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Conference |
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| Notes |
PMID:10958783 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
550 |
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| Author |
Jezierski T., Gorecka A. |
| Title |
Changes in the horses heart rate during different levels of social isolation |
Type |
Journal Article |
| Year |
2000 |
Publication |
Animal Science Papers and Reports |
Abbreviated Journal |
Anim. Sci. Pap. Rep. |
| Volume |
18 |
Issue |
1 |
Pages |
33-41 |
| Keywords |
horse; heart rate; human-animal relation |
| Abstract |
Social isolation in horses may be regarded as a stress factor which implies welfare problems. The aim of the experiment was to examine the effect of different levels of transient social isolation and human presence on the heart rate (HR) in horses. Seven horses were used and the experiment was conducted in a tether-stable without boxes. The HR was recorded electronically, continuously for 40 min during the following test situations: all horses in the stable; experimenter approaches the tested horse, other horses being untied and leaving the stable; tested horse staying alone or in the company of one or two stable-mates; the experimenter attempts to calm the isolated horse; outdoor auditory stimuli from other horses. The HR was significantly higher during the whole period of isolation, and depended on how many horses were left as company for the one tested. The highest HR was observed while other horses were leaving the stable and during perception of outdoor auditory stimuli from others. When in the company of two stable mates, the HR was elevated only while other horses were leaving the stable and during auditory stimuli from outdoors. Human presence evoked a significant increase in HR, probably due to conditioning of horses (expecting to be untied and allowed to join the others), irrespectively whether the tested horse was left alone or with one or two stable-mates. |
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Approved |
no |
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Equine Behaviour @ team @ |
Serial |
4816 |
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| Author |
Johnstone, R.A.; Dugatkin, L.A. |
| Title |
Coalition formation in animals and the nature of winner and loser effects |
Type |
Journal Article |
| Year |
2000 |
Publication |
Proceedings of the Royal Society B: Biological Sciences |
Abbreviated Journal |
Proc. Roy. Soc. Lond. B Biol. Sci. |
| Volume |
267 |
Issue |
1438 |
Pages |
17-21 |
| Keywords |
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| Abstract |
Coalition formation has been documented in a diverse array of taxa, yet there has been little formal analysis of polyadic interactions such as coalitions. Here, we develop an optimality model which examines the role of winner and loser effects in shaping coalition formation. We demonstrate that the predicted patterns of alliances are strongly dependent on the way in which winner and loser effects change with contestant strength. When winner and loser effects decrease with the resource-holding power (RHP) of the combatants, coalitions will be favoured between the strongest members of a group, but not between the weakest. If, in contrast, winner and loser effects increase with RHP, exactly the opposite predictions emerge. All other things being equal, intervention is more likely to prove worthwhile when the beneficiary of the aid is weaker (and its opponent is stronger), because the beneficiary is then less likely to win without help. Consequently, intervention is more probable when the impact of victory on the subsequent performance of a combatant increases with that individual's strength because this selects for intervention in favour of weaker combatants. The published literature on hierarchy formation does not reveal how winner and loser effects actually change with contestant strength and we therefore hope that our model will spur others to collect such data; in this light we suggest an experiment which will help to elucidate the nature of winner and loser effects and their impact on coalition formation in animals. |
| Address |
* aggression * dominance * hierarchy * intervention * reciprocity |
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| Notes |
10.1098/rspb.2000.0960 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
5290 |
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| Author |
Kirkwood, J.K. |
| Title |
Animal minds and animal welfare |
Type |
Journal Article |
| Year |
2000 |
Publication |
The Veterinary Record |
Abbreviated Journal |
Vet. Rec. |
| Volume |
146 |
Issue |
11 |
Pages |
327 |
| Keywords |
*Animal Welfare; Animals; Animals, Domestic/*psychology; *Cognition; Consciousness; Veterinary Medicine/standards |
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English |
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Edition |
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| ISSN |
0042-4900 |
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| Notes |
PMID:10766123 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2856 |
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| Author |
Krause Hoare; Hemelrijk; Rubenstein |
| Title |
Leadership in fish shoals |
Type |
Journal Article |
| Year |
2000 |
Publication |
Fish and Fisheries |
Abbreviated Journal |
Fish Fish |
| Volume |
1 |
Issue |
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Pages |
82-89 |
| Keywords |
directional locomotion; fish schools; front fish; nutritional state; schooling; shoal leadership; swimming direction |
| Abstract |
Leadership is not an inherent quality of animal groups that show directional locomotion. However, there are other factors that may be responsible for the occurrence of leadership in fish shoals, such as individual differences in nutritional state between group members. It appears that front fish have a strong influence on directional shoal movements and that individuals that occupy such positions are often characterised by larger body lengths and lower nutritional state. Potential interactions between the two factors and their importance for positioning within shoals need further attention. Initiation of directional movement in stationary shoals and position preferences in mobile shoals need to be addressed separately because they are potentially subject to different constraints. Individuals that initiate a swimming direction may not necessarily be capable of the sustained high swimming performance required to keep the front position or have the motivation to do so, for that matter. More empirical and theoretical work is necessary to look at the factors controlling positioning behaviour within shoals, as well as overall shoal shape and structure. Tracking of marked individuals whose positioning behaviour is monitored over extended time periods of hours or days would be useful. There is an indication that shoal positions are rotated by individuals according to their nutritional needs, with hungry fish occupying front positions only for as long as necessary to regain their nutritional balance. This suggests that shoal members effectively take turns at being leaders. There is a need for three-dimensional recordings of shoaling behaviour using high-speed video systems that allow a detailed analysis of information transfer in shoals of different size. The relationship between leadership and shoal size might provide an interesting field for future research. Most studies to date have been restricted to shoals of small and medium size and more information on larger shoals would be useful. |
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no |
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2067 |
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