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Author |
Doligez, B.; Danchin, E.; Clobert, J. |
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Title |
Public information and breeding habitat selection in a wild bird population |
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Journal Article |
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Year |
2002 |
Publication |
Science (New York, N.Y.) |
Abbreviated Journal |
Science |
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Volume |
297 |
Issue |
5584 |
Pages |
1168-1170 |
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Keywords |
*Animal Migration; Animals; Animals, Wild/physiology; *Behavior, Animal; Cognition; Cues; *Environment; Female; Male; *Nesting Behavior; Probability; *Reproduction; Songbirds/*physiology; Sweden |
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Abstract  |
According to the “public information” hypothesis, some animal species may monitor the current reproductive success of conspecifics to assess local habitat quality and to choose their own subsequent breeding site. To test this hypothesis experimentally, we manipulated two components of public information, the mean number of offspring raised locally (“quantity”) and their condition (“quality”), in the collared flycatcher Ficedula albicollis. Immigration rate decreased with local offspring quantity but did not depend on local offspring quality, suggesting that immigrants are deprived of information regarding local quality. Conversely, emigration rate increased both when local offspring quantity or quality decreased, suggesting that residents can use both components of public information. |
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Laboratoire d'Ecologie CNRS-UMR 7625, Universite Pierre et Marie Curie, 7 quai Saint Bernard, Batiment A 7eme etage, Case 237, F-75252 Paris Cedex 05, France. blandine.doligez@esh.unibe.ch |
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1095-9203 |
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PMID:12183627 |
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Call Number |
Equine Behaviour @ team @ |
Serial |
2841 |
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Author |
Hemelrijk, C.K. |
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Title |
Understanding Social Behaviour with the Help of Complexity Science (Invited Article) |
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Journal Article |
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Year |
2002 |
Publication |
Ethology |
Abbreviated Journal |
Ethology |
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Volume |
108 |
Issue |
8 |
Pages |
655-671 |
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Abstract In the study of complexity, a new kind of explanation has been developed for social behaviour. It shows how patterns of social behaviour can arise as a side-effect of the interaction of individuals with their social or physical environment (e.g. by self-organization). This development may influence our ideas about the direct causation and evolution of social behaviour. Furthermore, it may influence our theories about the integration of different traits. This new method has been made possible by the increase in computing power. It is now applied in many areas of science, such as physics, chemistry, sociology and economics. However, in zoology and anthropology it is still rare. The major aim of this paper is to make this method more generally accepted among behavioural scientists. |
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Blackwell Verlag, GmbH |
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ISSN |
1439-0310 |
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Equine Behaviour @ team @ |
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5200 |
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Author |
Fujita, K.; Kuroshima, H.; Masuda, T. |
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Title |
Do tufted capuchin monkeys (Cebus apella) spontaneously deceive opponents? A preliminary analysis of an experimental food-competition contest between monkeys |
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Journal Article |
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Year |
2002 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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5 |
Issue |
1 |
Pages |
19-25 |
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Keywords |
Animals; Cebus/*psychology; *Competitive Behavior; *Deception; Dominance-Subordination; Feeding Behavior/*psychology; Female; Male; Predatory Behavior; Social Behavior |
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Abstract |
A new laboratory procedure which allows the study of deceptive behavior in nonhuman primates is described. Pairs of tufted capuchin monkeys faced each other in a food-competition contest. Two feeder boxes were placed between the monkeys. A piece of food was placed in one of the boxes. The subordinate individual was able to see the food and to open the box to obtain the bait. A dominant male was unable to see the food or to open the box but was able to take the food once the box was opened by the subordinate. In experiment 1, two of four subordinate monkeys spontaneously started to open the unbaited box first with increasing frequency. Experiment 2 confirmed that this “deceptive” act was not due to a drop in the rate of reinforcement caused by the usurping dominant male, under the situation in which food sometimes automatically dropped from the opened box. In experiment 3, two subordinate monkeys were rerun in the same situation as experiment 1. One of them showed some recovery of the “deceptive” act but the other did not; instead the latter tended to position himself on the side where there was no food before he started to open the box. Although the results do not clearly indicate spontaneous deception, we suggest that operationally defined spontaneous deceptive behaviors in monkeys can be analyzed with experimental procedures such as those used here. |
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Department of Psychology, Graduate School of Letters, Kyoto University, Yoshida-honmachi, Sakyo, Kyoto 606-8501, Japan. fujita@psy.bun.kyoto-u.ac.jp |
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1435-9448 |
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PMID:11957398 |
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no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
2614 |
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Author |
Boyd, L.; Bandi, N. |
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Title |
Reintroduction of takhi, Equus ferus przewalskii, to Hustai National Park, Mongolia: time budget and synchrony of activity pre- and post-release |
Type |
Journal Article |
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Year |
2002 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
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Volume |
78 |
Issue |
2-4 |
Pages |
87-102 |
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Keywords |
Equids; Przewalski's horses; Takhi; Behaviour patterns; Time budgets; Behavioural synchrony; Reintroduction |
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Abstract |
A harem of takhi (Equus ferus przewalskii) was observed during introduction to the Hustain Nuruu Steppe Reserve of Mongolia. The goals were to examine whether the harem exhibited significant behavioural synchrony, whether release had an effect on time budget, and what the implications might be regarding acclimatisation to the wild. Behaviours were scan sampled every 10 min between the hours of 06:00 and 22:00, twice before release, twice immediately after release, and twice 2 years after reintroduction. Time budgets were constructed from these data. Considerable behavioural synchrony was evidenced both before and after release. Crepuscular grazing and midday resting were typical, regardless of the date relative to release. Upon release, the amount of time spent moving doubled for all age classes. It is suggested that this increase resulted from exploration. The amount of time spent grazing and standing remained unchanged; the increased amount of time spent moving came at the expense of resting. Two years later, the horses still spent more time moving than when captive. Somewhat less time was spent grazing, although the difference was not significant. More time was spent resting in 1996 than immediately after release. These time budgets provide evidence of successful acclimatisation to the wild. Trekking between favoured sites could account for the persistent increase in time spent moving, with concomitantly less time needed to meet nutritional needs by grazing and more time available for resting. Housing captive takhi in large enclosures is evidently insufficient to permit the amount of movement exhibited by this wild harem. The time budget of the 1- and 2-year olds was more similar to that of adults than foals, indicating approaching adulthood. That 1- and 2-year olds were nursed, without loss of body condition by the dam, provided additional evidence that the takhi achieved excellent nutritional status in the wild. |
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Equine Behaviour @ team @ |
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3690 |
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Author |
Wilson, R. |
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Title |
Specific Welfare Problems Associated with Working Horses |
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Book Chapter |
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Year |
2002 |
Publication |
The Welfare of Horses |
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Pages |
203-218 |
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A brief review of the history and uses of workhorses is provided as well as numbers and distributions of working equines at the beginning of the twenty-first century. The problems of using the correct harness and correct alignment of horse and equipment through the harness are considered and care of the feet and especially the necessity of correct shoeing for both welfare and maximum work are discussed. The nutritional needs of working equines in terms of energy, protein, minerals and vitamins and the importance of good health and prevention and management of disease, are examined. Relationships between the animal and his owner or handler and some legal aspects of improving welfare are covered and it is concluded that education of these owners/handlers is essential for improving the welfare of working equids in developing countries. |
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Equine Behaviour @ team @ |
Serial |
4382 |
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Author |
Call, J. |
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Title |
A fish-eye lens for comparative studies: broadening the scope of animal cognition |
Type |
Journal Article |
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Year |
2002 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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Volume |
5 |
Issue |
1 |
Pages |
15-16 |
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Keywords |
Animals; Behavior, Animal/physiology; Cognition/*physiology; Fishes/*physiology; Species Specificity |
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Abstract |
? is the article no longer available? |
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call@eva.mpg.de |
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1435-9448 |
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PMID:11957396 |
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Equine Behaviour @ team @ |
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2616 |
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Author |
Hampton, R.R.; Healy, S.D.; Shettleworth, S.J.; Kamil, A.C. |
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Title |
Neuroecologists' are not made of straw |
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Journal Article |
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Year |
2002 |
Publication |
Trends in Cognitive Sciences |
Abbreviated Journal |
Trends. Cognit. Sci. |
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6 |
Issue |
1 |
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6-7 |
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Laboratory of Neuropsychology, NIH--NIMH, Building 49, Room 1B-80, 20892-4415, Bethesda, MD, USA |
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1364-6613 |
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PMID:11849608 |
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refbase @ user @ |
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371 |
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Author |
Wakeling,E |
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Title |
Feral Horses of the West |
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2002 |
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refbase @ user @ |
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516 |
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Author |
Huebener, E. |
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Title |
Coaxing seat, breathing leg, whispering reins |
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Book Whole |
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2002 |
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2nd edition |
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220 |
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0948-9708 |
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3-487-08408-2 |
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Reiten Lesen Denken @ eberhardhuebener @ |
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875 |
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Author |
Houpt, K.A.; Rudman, R. |
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Title |
Foreword to special issue on equine behavior |
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2002 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
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78 |
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2-4 |
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83-85 |
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1986 |
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