| Records |
| Author |
Paramastri, Y.; Royo, F.; Eberova, J.; Carlsson, H.-E.; Sajuthi, D.; Fernstrom, A.-L.; Pamungkas, J.; Hau, J. |
| Title |
Urinary and fecal immunoglobulin A, cortisol and 11-17 dioxoandrostanes, and serum cortisol in metabolic cage housed female cynomolgus monkeys (Macaca fascicularis) |
Type |
Journal Article |
| Year |
2007 |
Publication |
Journal of Medical Primatology |
Abbreviated Journal |
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| Volume |
36 |
Issue  |
6 |
Pages |
355-364 |
| Keywords |
cortisol; cynomolgus monkey; immunoglobulin A; long tailed macaque; Macaca fascicularis; metabolism cage |
| Abstract |
Background and methods Quantitative enzyme-immunoassays of urinary and fecal immunoglobulin A (IgA), cortisol and 11-17-dioxoandrostanes (11,17-DOA), and serum cortisol in eight metabolic-cage-housed female cynomolgus monkeys were performed. The monkeys were divided into two groups, B and NB. Group B animals were blood sampled every 6 hours, whereas Group NB animals were not handled/blood sampled. Results No differences were recorded between the amounts of feces and urine excreted by the two groups. Group B animals excreted more urinary cortisol than did Group NB animals indicating that restraint-blood sampling resulted in a stress response. Excreted amounts of IgA and 11,17-DOA (urine and feces) did not differ between the groups. Conclusions Urinary cortisol was a reliable marker of the stress associated with repeated blood sampling. Declining amounts of excreted urinary cortisol indicated that cynomolgus monkeys acclimated quickly to repeated blood sampling in metabolism cages. Within and between animal variation in amounts of feces voided demonstrated the importance of expressing fecal markers as ‘amounts excreted per time unit per kg body weight’ rather than just measuring the concentrations in fecal samples. |
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Blackwell Publishing Ltd |
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| ISSN |
1600-0684 |
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Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
5854 |
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| Author |
Robinson, H.C. |
| Title |
Equine interspecies aggression |
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| Year |
2007 |
Publication |
The Veterinary record |
Abbreviated Journal |
Vet. Rec. |
| Volume |
160 |
Issue |
7 |
Pages |
244 |
| Keywords |
*Aggression; Animals; Behavior, Animal; Equidae; Horses/*physiology/*psychology |
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0042-4900 |
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| Notes |
PMID:17308028 |
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no |
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Serial |
1773 |
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| Author |
Warneken, F.; Hare, B.; Melis, A.P.; Hanus, D.; Tomasello, M. |
| Title |
Spontaneous Altruism by Chimpanzees and Young Children |
Type |
Journal Article |
| Year |
2007 |
Publication |
PLoS Biol |
Abbreviated Journal |
PLoS Biol |
| Volume |
5 |
Issue |
7 |
Pages |
e184 EP - |
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| Abstract |
<p>Experimental evidence reveals that chimpanzees will help other unrelated humans and conspecifics without a reward, showing that they share crucial aspects of altruism with humans.</p> |
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Public Library of Science |
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no |
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Equine Behaviour @ team @ |
Serial |
5609 |
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Pfister, J.A.; Stegelmeier, B.L.; Cheney, C.D.; Gardner, D.R. |
| Title |
Effect of previous locoweed (Astragalus and Oxytropis species) intoxication on conditioned taste aversions in horses and sheep |
Type |
Journal Article |
| Year |
2007 |
Publication |
Journal of Animal Science |
Abbreviated Journal |
J. Anim. Sci. |
| Volume |
85 |
Issue |
7 |
Pages |
1836-1841 |
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| Abstract |
Locoweed species (Astragalus and Oxytropis spp.) are a serious toxic plant problem for grazing livestock. Horses and sheep have been conditioned to avoid eating locoweed using the aversive agent LiCl. The objective of this study was to determine if previous locoweed intoxication affects food aversion learning in horses and sheep. Horses and sheep were divided into 3 treatment groups: control (not fed locoweed and not averted to a novel feed); locoweed-novel feed averted (fed locoweed and averted to a novel feed); and averted (not fed locoweed and averted to a novel feed). Animals in the locoweed-novel feed averted groups were fed locoweed during 2 periods of 21 and 14 d, respectively, with each feeding period followed by a 14-d recovery period. Animals were averted to a novel test feed at the end of the first locoweed-feeding period, and periodically evaluated for the strength and persistence of the aversion. During the first recovery period, locoweed-novel feed averted horses ate less (9.5% of amount offered) of the test feed than did control horses (99.8%) and did not generally differ from averted horses (0%). During recovery period 2, locoweed-novel feed averted horses (4.3%) differed (P = 0.001) in consumption (% of offered) of the test feed from controls (100%) and the averted group (0%). Locoweed-novel feed averted sheep differed (P = 0.001) from controls (14.4 vs. 99.5%, respectively, during recovery period 1), whereas locoweed-novel feed averted sheep did not differ (P > 0.50) from averted sheep (0.6%). During the second recovery period, control sheep (100%) differed (P < 0.05) from averted (0%) and locoweed-novel feed averted (12.2%) groups. Two intoxicated sheep (locoweed-novel feed averted) partially extinguished the aversion during the first recovery period, but an additional dose of LiCl restored the aversion. Two of 3 intoxicated horses had strong aversions that persisted without extinction; 1 horse in the locoweed-novel feed averted group had a weaker aversion. These findings suggest that horses and sheep previously intoxicated by locoweeds can form strong and persistent aversions to a novel feed, but in some animals, those aversions may not be as strong as in animals that were never intoxicated. |
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| Notes |
10.2527/jas.2007-0046 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
5683 |
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| Author |
Grosenick, L.; Clement, T.S.; Fernald, R.D. |
| Title |
Fish can infer social rank by observation alone |
Type |
Journal Article |
| Year |
2007 |
Publication |
Nature |
Abbreviated Journal |
Nature |
| Volume |
445 |
Issue |
7126 |
Pages |
429-432 |
| Keywords |
Aggression/physiology; Animals; Cognition/*physiology; Female; Fishes/*physiology; Learning/*physiology; Male; Models, Biological; *Social Dominance; Territoriality |
| Abstract |
Transitive inference (TI) involves using known relationships to deduce unknown ones (for example, using A > B and B > C to infer A > C), and is thus essential to logical reasoning. First described as a developmental milestone in children, TI has since been reported in nonhuman primates, rats and birds. Still, how animals acquire and represent transitive relationships and why such abilities might have evolved remain open problems. Here we show that male fish (Astatotilapia burtoni) can successfully make inferences on a hierarchy implied by pairwise fights between rival males. These fish learned the implied hierarchy vicariously (as 'bystanders'), by watching fights between rivals arranged around them in separate tank units. Our findings show that fish use TI when trained on socially relevant stimuli, and that they can make such inferences by using indirect information alone. Further, these bystanders seem to have both spatial and featural representations related to rival abilities, which they can use to make correct inferences depending on what kind of information is available to them. Beyond extending TI to fish and experimentally demonstrating indirect TI learning in animals, these results indicate that a universal mechanism underlying TI is unlikely. Rather, animals probably use multiple domain-specific representations adapted to different social and ecological pressures that they encounter during the course of their natural lives. |
| Address |
Department of Biological Sciences, Stanford University, Stanford, California, 94305, USA. logang@stanford.edu |
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English |
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1476-4687 |
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| Notes |
PMID:17251980 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
600 |
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| Author |
Shettleworth, S.J. |
| Title |
Animal behaviour: planning for breakfast |
Type |
Journal Article |
| Year |
2007 |
Publication |
Nature |
Abbreviated Journal |
Nature |
| Volume |
445 |
Issue |
7130 |
Pages |
825-826 |
| Keywords |
Animals; Feeding Behavior/*physiology; *Food; Haplorhini/physiology; Memory/physiology; Songbirds/*physiology; Thinking/*physiology |
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English |
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1476-4687 |
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| Notes |
PMID:17314961 |
Approved |
no |
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refbase @ user @ |
Serial |
356 |
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| Author |
Wolf, M.; van Doorn, G.S.; Leimar, O.; Weissing, F.J. |
| Title |
Life-history trade-offs favour the evolution of animal personalities |
Type |
Journal Article |
| Year |
2007 |
Publication |
Nature |
Abbreviated Journal |
Nature |
| Volume |
447 |
Issue |
7144 |
Pages |
581-584 |
| Keywords |
Aggression/physiology/psychology; Animals; Behavior, Animal/*physiology; *Evolution; Exploratory Behavior/physiology; Models, Biological; Personality/*physiology; Predatory Behavior/physiology; Reproduction/physiology; Risk-Taking; Selection (Genetics) |
| Abstract |
In recent years evidence has been accumulating that personalities are not only found in humans but also in a wide range of other animal species. Individuals differ consistently in their behavioural tendencies and the behaviour in one context is correlated with the behaviour in multiple other contexts. From an adaptive perspective, the evolution of animal personalities is still a mystery, because a more flexible structure of behaviour should provide a selective advantage. Accordingly, many researchers view personalities as resulting from constraints imposed by the architecture of behaviour (but see ref. 12). In contrast, we show here that animal personalities can be given an adaptive explanation. Our argument is based on the insight that the trade-off between current and future reproduction often results in polymorphic populations in which some individuals put more emphasis on future fitness returns than others. Life-history theory predicts that such differences in fitness expectations should result in systematic differences in risk-taking behaviour. Individuals with high future expectations (who have much to lose) should be more risk-averse than individuals with low expectations. This applies to all kinds of risky situations, so individuals should consistently differ in their behaviour. By means of an evolutionary model we demonstrate that this basic principle results in the evolution of animal personalities. It simultaneously explains the coexistence of behavioural types, the consistency of behaviour through time and the structure of behavioural correlations across contexts. Moreover, it explains the common finding that explorative behaviour and risk-related traits like boldness and aggressiveness are common characteristics of animal personalities. |
| Address |
Theoretical Biology Group, Centre for Ecological and Evolutionary Studies, University of Groningen, Kerklaan 30, 9751 NN Haren, The Netherlands |
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1476-4687 |
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PMID:17538618 |
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no |
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Equine Behaviour @ team @ |
Serial |
4098 |
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| Author |
Bell, A.M. |
| Title |
Evolutionary biology: animal personalities |
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| Year |
2007 |
Publication |
Nature |
Abbreviated Journal |
Nature |
| Volume |
447 |
Issue |
7144 |
Pages |
539-540 |
| Keywords |
Aggression/physiology/psychology; Animals; Behavior, Animal/*physiology; *Evolution; Humans; *Models, Biological; Personality/genetics/*physiology; Reproduction/genetics/physiology; Risk-Taking; Selection (Genetics) |
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1476-4687 |
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PMID:17538607 |
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no |
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Equine Behaviour @ team @ |
Serial |
4099 |
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| Author |
McElreath, R.; Luttbeg, B.; Fogarty, S.P.; Brodin, T.; Sih, A. |
| Title |
Evolution of animal personalities |
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Journal Article |
| Year |
2007 |
Publication |
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Abbreviated Journal |
Nature |
| Volume |
450 |
Issue |
7167 |
Pages |
E5-E5 |
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Nature Publishing Group |
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0028-0836 |
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10.1038/nature06326 |
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no |
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Equine Behaviour @ team @ |
Serial |
4295 |
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| Author |
Wolf, M.; van Doorn, G.S.; Leimar, O.; Weissing, F.J. |
| Title |
Wolf et al. reply |
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Journal Article |
| Year |
2007 |
Publication |
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Abbreviated Journal |
Nature |
| Volume |
450 |
Issue |
7167 |
Pages |
E5-E6 |
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Nature Publishing Group |
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0028-0836 |
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10.1038/nature06327 |
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no |
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Equine Behaviour @ team @ |
Serial |
4297 |
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