| Records |
| Author |
Koolhaas, J.M.; Korte, S.M.; De Boer, S.F.; Van Der Vegt, B.J.; Van Reenen, C.G.; Hopster, H.; De Jong, I.C.; Ruis, M.A.W.; Blokhuis, H.J. |
| Title |
Coping styles in animals: current status in behavior and stress-physiology |
Type |
Journal Article |
| Year |
1999 |
Publication |
Neuroscience & Biobehavioral Reviews |
Abbreviated Journal |
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| Volume |
23 |
Issue |
7 |
Pages |
925-935 |
| Keywords |
Coping; Aggression; Stress; Disease; Corticosterone |
| Abstract |
This paper summarizes the current views on coping styles as a useful concept in understanding individual adaptive capacity and vulnerability to stress-related disease. Studies in feral populations indicate the existence of a proactive and a reactive coping style. These coping styles seem to play a role in the population ecology of the species. Despite domestication, genetic selection and inbreeding, the same coping styles can, to some extent, also be observed in laboratory and farm animals. Coping styles are characterized by consistent behavioral and neuroendocrine characteristics, some of which seem to be causally linked to each other. Evidence is accumulating that the two coping styles might explain a differential vulnerability to stress mediated disease due to the differential adaptive value of the two coping styles and the accompanying neuroendocrine differentiation. |
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Equine Behaviour @ team @ |
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4416 |
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| Author |
Gosling, S.D.; John, O.P. |
| Title |
Personality Dimensions in Nonhuman Animals: A Cross-Species Review |
Type |
Journal Article |
| Year |
1999 |
Publication |
Current Directions in Psychological Science |
Abbreviated Journal |
Curr. Dir. Psychol. Sci. |
| Volume |
8 |
Issue |
3 |
Pages |
69-75 |
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| Abstract |
The evolutionary continuity between humans and other animals suggests that some dimensions of personality may be common across a wide range of species. Unfortunately, there is no unified body of research on animal personality; studies are dispersed across multiple disciplines and diverse journals. To review 19 studies of personality factors in 12 nonhuman species, we used the human Five-Factor Model plus Dominance and Activity as a preliminary framework. Extraversion, Neuroticism, and Agreeableness showed the strongest cross-speciesgenerality, followed by Openness; a separate Conscientiousness dimension appeared only in chimpanzees, humans` closest relatives. Cross-species evidence was modest for a separate Dominance dimension but scant for Activity. The comparative approach taken here offers a fresh perspective on human personality and should facilitate hypothesis-driven research on the social and biological bases of personality. |
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Equine Behaviour @ team @ |
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4417 |
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| Author |
Lestel, D.; Grundmann, E. |
| Title |
Tools, techniques and animals: the role of mediations of actions in the dynamics of social behaviours |
Type |
Journal Article |
| Year |
1999 |
Publication |
Social Science Information |
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| Volume |
38 |
Issue |
3 |
Pages |
367-407 |
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The definition of tool proposed by Beck (1980) is still the one referred to in ethology when discussing the question of tool-use in animals, and its pertinence is rarely questioned. However, observations on technical behaviours in animals have multiplied over the last 20 years, and these have profoundly altered our earlier representations. In the present article, we show that Beck's definition is insufficient and that it does not, in fact, work. More generally, we replace a theory of tools with a theory of mediations of actions to account for technical behaviours in animals. We show that a culturally overcharged notion such as that of tool hinders our perception of the diversity and the complexity of tool uses. By speaking of mediations of actions and not of tools, we eliminate the problem of first defining the pertinent object (is it a tool or not?) and are free to concentrate on the means by which the animal externalizes its actions and thus procures greater means of acting on these within a group. In so doing, we prepare the ground for a genuine evolutionary understanding of the dynamics of actions within a given animal population. Whereas, with a few exceptions, ethologists have always separated the question of techniques from that of social behaviour, we emphasize the importance of an ecology of mediations of actions for understanding the structure and dynamics of animal societies, in particular by attempting to rethink such notions as “culture” in the perspective of a general analysis of mediations of actions. |
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10.1177/053901899038003002 |
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Equine Behaviour @ team @ |
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4431 |
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| Author |
Heipertz- Hengst, C. |
| Title |
Pferde richtig trainieren |
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1999 |
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Cadmos |
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Lüneburg |
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978-3861273417 |
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no |
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Equine Behaviour @ team @ |
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4444 |
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| Author |
Tschudin, A. |
| Title |
Relative Neocortex Size and Its Correlates in Dolphins: Comparisons with Humans and Implications for Mental Evolution |
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1999 |
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Ph.D. thesis |
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University of Natal |
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Pietermaritzburg, South Africa |
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Equine Behaviour @ team @ |
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4727 |
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| Author |
Whitehead, H.; Dufault, S. |
| Title |
Techniques for Analyzing Vertebrate Social Structure Using Identified Individuals: Review and Recommendations |
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Book Chapter |
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1999 |
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Volume 28 |
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33-74 |
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Academic Press |
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Peter J.B. Slater, J.S.R., Charles T. Snowden and Timothy J. Roper |
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0065-3454 |
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no |
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Equine Behaviour @ team @ |
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4987 |
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Hedrick, P.W.; Parker, K.M.; Miller, E.L.; Miller, P.S. |
| Title |
Major Histocompatibility Complex Variation in the Endangered Przewalski's Horse |
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Journal Article |
| Year |
1999 |
Publication |
Genetics |
Abbreviated Journal |
Genetics |
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152 |
Issue |
4 |
Pages |
1701-1710 |
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The major histocompatibility complex (MHC) is a fundamental part of the vertebrate immune system, and the high variability in many MHC genes is thought to play an essential role in recognition of parasites. The Przewalski's horse is extinct in the wild and all the living individuals descend from 13 founders, most of whom were captured around the turn of the century. One of the primary genetic concerns in endangered species is whether they have ample adaptive variation to respond to novel selective factors. In examining 14 Przewalski's horses that are broadly representative of the living animals, we found six different class II DRB major histocompatibility sequences. The sequences showed extensive nonsynonymous variation, concentrated in the putative antigen-binding sites, and little synonymous variation. Individuals had from two to four sequences as determined by single-stranded conformation polymorphism (SSCP) analysis. On the basis of the SSCP data, phylogenetic analysis of the nucleotide sequences, and segregation in a family group, we conclude that four of these sequences are from one gene (although one sequence codes for a nonfunctional allele because it contains a stop codon) and two other sequences are from another gene. The position of the stop codon is at the same amino-acid position as in a closely related sequence from the domestic horse. Because other organisms have extensive variation at homologous loci, the Przewalski's horse may have quite low variation in this important adaptive region. N1 - |
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Equine Behaviour @ team @ |
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5043 |
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Menke, C.; Waiblinger, S.; Foelsch, D.W.; Wiepkema, P.R. |
| Title |
Social Behaviour and Injuries of Horned Cows in Loose Housing Systems |
Type |
Journal Article |
| Year |
1999 |
Publication |
Animal Welfare |
Abbreviated Journal |
Anim Welfare |
| Volume |
8 |
Issue |
3 |
Pages |
243-258 |
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Animal Welfare; Horned Dairy Cows; Human-Animal Relationship; Injuries; Loose Housing; Management; Social Behaviour |
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The relationship between social behaviour and skin injuries (caused by horns) of loose housed horned cows was investigated on 35 dairy farms. While the frequencies of two agonistic behaviour elements (push and chase away) were positively correlated with the occurrence of skin injuries, the frequencies of butting and homing were not. Butting appears to have an ambivalent motivation, in that its occurrence is correlated positively both with agonistic behaviour and with social licking. Horning showed a positive correlation with social licking only. Four groups of husbandry conditions that may be associated with the occurrence of social behaviour and of injuries were distinguished: i) herd management, with variables including problem solving management by the farmer, integration of new cows, and dealing with periparturient and oestrus cows; ii) human-animal relationship, with variables including ability to identify individual cows, frequency of brushing the cows, number of milkers, and frequency of personnel changes; iii) animal characteristics, with the variable of herd size; and iv) stable characteristics, with the variable of space per cow (m2). The relevance of the husbandry variables investigated here had been confirmed in a previous stepwise regression analysis (Menke 1996). The variables for herd management and human-animal relationship conditions correlated in a consistent way with the occurrence of agonistic behaviour and/or of injuries, while most of them also correlated in the opposite direction with the occurrence of social licking. Herd size correlated positively with agonistic behaviour, but negatively with social licking. Space per cow correlated negatively with agonistic behaviour and injuries. In more than 70 per cent of the herds investigated, the levels of agonistic behaviour and of skin injuries were low, implying that horned dairy cows can be kept with less risk than is often assumed. We argue that such risks strongly depend on management factors that can be improved. |
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Equine Behaviour @ team @ |
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5480 |
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Hopster, H.; van der Werf, J.T.; Erkens, J.H.; Blokhuis, H.J. |
| Title |
Effects of repeated jugular puncture on plasma cortisol concentrations in loose-housed dairy cows |
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Journal Article |
| Year |
1999 |
Publication |
Journal of Animal Science |
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J Anim. Sci |
| Volume |
77 |
Issue |
3 |
Pages |
708-714 |
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Equine Behaviour @ team @ |
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5486 |
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| Author |
Tomasello, M. |
| Title |
The cultural origins of human cognition. |
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1999 |
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Harvard University Press |
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Camebridge,MA. |
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Equine Behaviour @ team @ |
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5597 |
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