| Records |
| Author |
Hampton, R.R.; Sherry, D.F.; Shettleworth, S.J.; Khurgel, M.; Ivy, G. |
| Title |
Hippocampal volume and food-storing behavior are related in parids |
Type |
Journal Article |
| Year |
1995 |
Publication  |
Brain, behavior and evolution |
Abbreviated Journal |
Brain Behav Evol |
| Volume |
45 |
Issue |
1 |
Pages |
54-61 |
| Keywords |
Animals; Appetitive Behavior/*physiology; Birds/*anatomy & histology; Brain Mapping; Evolution; Food Preferences/physiology; Hippocampus/*anatomy & histology; Mental Recall/*physiology; Orientation/*physiology; Predatory Behavior/physiology; Social Environment; Species Specificity |
| Abstract |
The size of the hippocampus has been previously shown to reflect species differences and sex differences in reliance on spatial memory to locate ecologically important resources, such as food and mates. Black-capped chickadees (Parus atricapillus) cached more food than did either Mexican chickadees (P. sclateri) or bridled titmice (P. wollweberi) in two tests of food storing, one conducted in an aviary and another in smaller home cages. Black-capped chickadees were also found to have a larger hippocampus, relative to the size of the telencephalon, than the other two species. Differences in the frequency of food storing behavior among the three species have probably produced differences in the use of hippocampus-dependent memory and spatial information processing to recover stored food, resulting in graded selection for size of the hippocampus. |
| Address |
Department of Psychology, University of Toronto, Ontario, Canada |
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| Language |
English |
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Edition |
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| ISSN |
0006-8977 |
ISBN |
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Medium |
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| Notes |
PMID:7866771 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
379 |
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| Author |
Loveland, K.A. |
| Title |
Self-recognition in the bottlenose dolphin: ecological considerations |
Type |
Journal Article |
| Year |
1995 |
Publication |
Consciousness and Cognition |
Abbreviated Journal |
Conscious Cogn |
| Volume |
4 |
Issue |
2 |
Pages |
254-257 |
| Keywords |
Animals; Attention; *Awareness; Body Image; Dolphins/*psychology; Exploratory Behavior; Female; Male; *Self Concept; *Social Environment; Species Specificity; Television; *Visual Perception |
| Abstract |
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| Address |
Department of Psychiatry and Behavioral Sciences, University of Texas Medical School, Houston 77025, USA |
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English |
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Edition |
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| ISSN |
1053-8100 |
ISBN |
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| Notes |
PMID:8521267 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
4161 |
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| Author |
Hart, D.; Whitlow, J.W.J. |
| Title |
The experience of self in the bottlenose dolphin |
Type |
Journal Article |
| Year |
1995 |
Publication |
Consciousness and Cognition |
Abbreviated Journal |
Conscious Cogn |
| Volume |
4 |
Issue |
2 |
Pages |
244-247 |
| Keywords |
Animal Communication; Animals; *Awareness; Body Image; Dolphins/*psychology; Female; Humans; Male; *Self Concept; Social Behavior; Species Specificity; *Television; *Visual Perception |
| Abstract |
Marten and Psarakos have presented some evidence which suggests that objective self-awareness and possibly representations of self may characterize the dolphins' experience of self. Their research demonstrates the possibility of similarities in the sense of self between primate species and dolphins, although whether dolphins have subjective self-awareness, personal memories, and theories of self--all important facets of the sense of self in humans--was not examined. Clearly, even this limited evidence was difficult to achieve; the difficulties in adapting methods and coding behavior are quite apparent in their report. Future progress, however, may depend upon clarification of what are the necessary components for a sense of self and an explication of how these might be reflected in dolphin behavior. We are mindful of the authors' point (pp. 219 and 220) that the dolphin lives more in an acoustic than a visual environment. Thus, while tasks relying upon vision may reveal the presence or absence of the sense of self in primates, it might well be the case that in dolphins self-related experiences might be better revealed in auditory tasks. But then, what is the nature of human self-awareness in terms of audition? While both conceptual and methodological hurdles remain, Marten and Psarakos have demonstrated that important questions can be asked about the minds and phenomenal worlds of nonanthropoid species. |
| Address |
Department of Psychology, Rutgers University, Camden, New Jersey 08102, USA |
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English |
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| ISSN |
1053-8100 |
ISBN |
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| Notes |
PMID:8521264 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
4162 |
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| Author |
Anderson, J.R. |
| Title |
Self-recognition in dolphins: credible cetaceans; compromised criteria, controls, and conclusions |
Type |
Journal Article |
| Year |
1995 |
Publication |
Consciousness and Cognition |
Abbreviated Journal |
Conscious Cogn |
| Volume |
4 |
Issue |
2 |
Pages |
239-243 |
| Keywords |
Animal Communication; Animals; *Awareness; Discrimination Learning; Dolphins/*psychology; Female; Male; Orientation; *Self Concept; Social Behavior; *Television; *Visual Perception |
| Abstract |
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| Address |
Laboratoire de Psychophysiologie, CNRS URA 1295, Universite Louis Pasteur, Strasbourg, France |
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English |
Summary Language |
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Edition |
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| ISSN |
1053-8100 |
ISBN |
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| Notes |
PMID:8521263 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
4163 |
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| Author |
Marten, K.; Psarakos, S. |
| Title |
Using self-view television to distinguish between self-examination and social behavior in the bottlenose dolphin (Tursiops truncatus) |
Type |
Journal Article |
| Year |
1995 |
Publication |
Consciousness and Cognition |
Abbreviated Journal |
Conscious Cogn |
| Volume |
4 |
Issue |
2 |
Pages |
205-224 |
| Keywords |
Animal Communication; Animals; *Attention; Discrimination Learning; Dolphins/*psychology; Female; Male; *Self Concept; *Social Behavior; *Television; *Visual Perception |
| Abstract |
In mirror mark tests dolphins twist, posture, and engage in open-mouth and head movements, often repetitive. Because postures and an open mouth are also dolphin social behaviors, we used self-view television as a manipulatable mirror to distinguish between self-examination and social behavior. Two dolphins were exposed to alternating real-time self-view (“mirror mode”) and playback of the same to determine if they distinguished between them. The adult male engaged in elaborate open-mouth behaviors in mirror mode, but usually just watched when played back the same material. Mirror mode behavior was also compared to interacting with real dolphins (controls). Mark tests were conducted, as well as switches from front to side self-views to see if the dolphins turned. They presented marked areas to the self-view television and turned. The results suggest self-examination over social behavior. |
| Address |
Earthtrust, Kailua, Hawaii 96734, USA |
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English |
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Edition |
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| ISSN |
1053-8100 |
ISBN |
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Medium |
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Conference |
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| Notes |
PMID:8521259 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
4164 |
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| Author |
Keverne, E.B. |
| Title |
Olfactory learning |
Type |
Journal Article |
| Year |
1995 |
Publication |
Current Opinion in Neurobiology |
Abbreviated Journal |
Curr. Opin. Neurobiol. |
| Volume |
5 |
Issue |
4 |
Pages |
482-488 |
| Keywords |
olfactory perception mammals |
| Abstract |
Unravelling the mechanisms of learning and memory can, and should, be tackled at many levels. Discovery of the huge family of odourant receptor genes provided olfaction with `molecular' respectability similar to that afforded to the visual system. Consequently, molecular studies have dominated the olfactory literature this past year, even to the point of providing a molecular basis of olfactory perception. Needless to say, the molecular approach favours a `hard-wired' system; however, other results suggest that flexibility in the olfactory system provides for certain adaptations that are crucial to the biological needs of mammals. |
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Approved |
no |
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refbase @ user @ |
Serial |
798 |
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| Author |
Saltz,D.; Rubenstein D.I. |
| Title |
Population Dynamics of a Reintroduced Asiatic Wild Ass (Equus Hemionus) Herd |
Type |
Journal Article |
| Year |
1995 |
Publication |
Ecological Applications |
Abbreviated Journal |
Ecol Appl |
| Volume |
5 |
Issue |
2 |
Pages |
327-335 |
| Keywords |
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| Abstract |
Reintroduction is the release of animals into an area where they were extirpated or have significantly declined. Little is known about the factors that determine the success of failure of ungulate reintroduction. We studied the dynamics of a reintroduced Asiatic wild ass (Equus hemionus) population for 10 yr (1983-1993) following the first successful release into the wild. A total of 14 adult females and 14 adult males were released into a nature reserve in the Negev Desert of southern Israel. Over this 10-yr span the female population has grown to only 16 adults. Reproductive success of reintroduced females was low in the first 5 yr following release (0.0-0.8 foals@?female^-^1@?yr^-^1), but increased to 0.5-1.0 foals@?female^-^1@?yr^-^1 in the last 5 yr. Reproductive success of wild-born females @>3 yr old was higher than that of reintroduced females of similar ages, and ranged from 0.5-1.0 foals@?female@?^-^1yr^-^1. Our study and data from the E. hemionus studbook suggest that young nonprimiparous females produced primarily males, while primiparous and old females produced primarily females. We attribute the low reproductive success following reintroduction to the stress caused by capture, transport, and release procedures; we consider the age-dependent progeny sex ratio within the framework of Trivers and Willard's (1973) maternal allocation hypothesis. We conclude that the slow growth of the female population was due to: (a) low reproductive success of females in the early years following reintroduction, and (b) a male-skewed progeny sex ratio among prime-aged reintroduced females. A simple stochastic Leslie matrix model suggests that high survival and improved reproductive success of reintroduced females at later stages of the study, and the reproductive success of wild-born females, make the population relatively unsusceptible to extinction from random demographic processes. In-depth knowledge of the dynamics of reintroduced populations is vital for the correct assessment of their viability. We offer suggestions for increasing the efficacy of future wild ass reintroductions. |
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Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2230 |
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| Author |
Houpt, K.A. |
| Title |
New perspectives on equine stereotypic behaviour |
Type |
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| Year |
1995 |
Publication |
Equine veterinary journal |
Abbreviated Journal |
Equine Vet J |
| Volume |
27 |
Issue |
2 |
Pages |
82-83 |
| Keywords |
Animals; Horses/*psychology; Stereotyped Behavior/*physiology |
| Abstract |
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English |
Summary Language |
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Series Issue |
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Edition |
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| ISSN |
0425-1644 |
ISBN |
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Medium |
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| Notes |
PMID:7607153 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
34 |
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| Author |
McGreevy, P.D.; Richardson, J.D.; Nicol, C.J.; Lane, J.G. |
| Title |
Radiographic and endoscopic study of horses performing an oral based stereotypy |
Type |
Journal Article |
| Year |
1995 |
Publication |
Equine veterinary journal |
Abbreviated Journal |
Equine Vet J |
| Volume |
27 |
Issue |
2 |
Pages |
92-95 |
| Keywords |
Animals; Endoscopy/*veterinary; Esophagus/physiopathology/radiography; Female; Fluoroscopy/veterinary; Horse Diseases/physiopathology/*psychology/radiography; Horses; Male; Pharynx/physiopathology/radiography; *Stereotyped Behavior; Video Recording |
| Abstract |
There is confusion in the veterinary literature concerning the definition of oral based stereotypies in the horse. This study reports the use of fluoroscopy and endoscopy during cribbiting/wind-sucking in afflicted horses. This permitted observations of movements of the pharyngeal and oesophageal tissues and of the air column within during the stereotypic behaviour. The findings reported show that the sequence of events during crib-biting/wind-sucking is not related to deglutition and that air is not swallowed to the stomach. Transient dilation of the upper oesophagus was recorded and the characteristic noise of wind-sucking coincided with the in-rush of air through the cricopharynx. The oesophageal distension was relieved when the air returned to the pharynx although small quantities passed caudally. It is proposed that the role of contraction of the strap muscles of the neck is to create a pressure gradient in the soft tissues surrounding the oesophagus which provokes movement of air from the pharynx into the oesophagus. The findings suggest that the definitions currently used in the sale of horses are in need of revision. |
| Address |
Department of Clinical Veterinary Science, University of Bristol, Langford, UK |
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English |
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Edition |
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| ISSN |
0425-1644 |
ISBN |
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Medium |
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Conference |
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| Notes |
PMID:7607156 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
90 |
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| Author |
McGreevy, P.D.; Cripps, P.J.; French, N.P.; Green, L.E.; Nicol, C.J. |
| Title |
Management factors associated with stereotypic and redirected behaviour in the thoroughbred horse |
Type |
Journal Article |
| Year |
1995 |
Publication |
Equine veterinary journal |
Abbreviated Journal |
Equine Vet J |
| Volume |
27 |
Issue |
2 |
Pages |
86-91 |
| Keywords |
Animal Husbandry/*methods; Animals; Horse Diseases/psychology/*therapy; Horses; Risk Factors; *Stereotyped Behavior; Time Factors |
| Abstract |
A greater knowledge of the effect of management factors is required to investigate the ontogeny of abnormal behaviour in the stabled horse. A postal survey of racehorse (flat) trainers yielded information about 22 yard and management factors. The relationship of the factors to the prevalence of abnormal behaviour was analysed by logistic regression. Management factors related to the time spent in the stable showed the strongest associations with stereotypic behaviour. The risk of horses performing abnormal behaviour increased: 1) as the amount of forage fell below 6.8 kg/day, 2) when bedding types other than straw were used, 3) when the total number of horses on the yard was fewer than 75, 4) in association with box designs that minimised contact between neighbouring horses, 5) when hay, rather than other types of forage, was used. |
| Address |
Department of Animal Health and Husbandry, School of Veterinary Science, University of Bristol, Langford, UK |
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English |
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Edition |
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| ISSN |
0425-1644 |
ISBN |
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Expedition |
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Conference |
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| Notes |
PMID:7607155 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
91 |
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