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Barton, N. |
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Title |
Evolutionary biology: The geometry of adaptation |
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Journal Article |
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1998 |
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Nature |
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Nature |
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395 |
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6704 |
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751-752 |
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0028-0836 |
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10.1038/27338 |
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Equine Behaviour @ team @ |
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5469 |
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Author |
Chittka, L.; Dyer, A. |
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Title |
Cognition: Your face looks familiar |
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Journal Article |
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2012 |
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Nature |
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Nature |
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481 |
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7380 |
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154-155 |
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Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved. |
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0028-0836 |
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10.1038/481154a |
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Equine Behaviour @ team @ |
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5494 |
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Moon, C.; Baldridge, M.T.; Wallace, M.A.; Burnham, C.-A.D.; Virgin, H.W.; Stappenbeck, T.S. |
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Title |
Vertically transmitted faecal IgA levels determine extra-chromosomal phenotypic variation |
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Journal Article |
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Year |
2015 |
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Nature |
Abbreviated Journal |
Nature |
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Volume |
521 |
Issue |
7550 |
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90-93 |
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Phenotype |
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The proliferation of genetically modified mouse models has exposed phenotypic variation between investigators and institutions that has been challenging to control1-5. In many cases, the microbiota is the presumed culprit of the variation. Current solutions to account for phenotypic variability include littermate and maternal controls or defined microbial consortia in gnotobiotic mice6,7. In conventionally raised mice, the microbiome is transmitted from the dam2,8,9. Here we show that microbially–driven dichotomous fecal IgA levels in WT mice within the same facility mimic the effects of chromosomal mutations. We observed in multiple facilities that vertically-transmissible bacteria in IgA-Low mice dominantly lowered fecal IgA levels in IgA-High mice after cohousing or fecal transplantation. In response to injury, IgA-Low mice showed increased damage that was transferable by fecal transplantation and driven by fecal IgA differences. We found that bacteria from IgA-Low mice degraded the secretory component (SC) of SIgA as well as IgA itself. These data indicate that phenotypic comparisons between mice must take into account the non-chromosomal hereditary variation between different breeders. We propose fecal IgA as one marker of microbial variability and conclude that cohousing and/or fecal transplantation enables analysis of progeny from different dams. |
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Department of Pathology and Immunology, Washington University School of Medicine, St Louis, Missouri 63110, USA. |
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eng |
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0028-0836 |
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Equine Behaviour @ team @ |
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6005 |
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Author |
Buttiker, W. |
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Title |
[Preliminary report on eye-frequenting butterflies in the Ivory Coast] |
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Journal Article |
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Year |
1973 |
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Revue Suisse de Zoologie; Annales de la Societe Zoologique Suisse et du Museum d'Histoire Naturelle de Geneve |
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Rev Suisse Zool |
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80 |
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1 |
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1-43 |
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Keywords |
Animals; Behavior, Animal; Cattle; Cote d'Ivoire; Ecology; Ectoparasitic Infestations/*veterinary; *Eye; Horses; *Insects; *Parasites; Sheep |
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German |
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Vorlaufige Beobachtungen an augenbesuchenden Schmetterlingen in der Elfenbeinkuste |
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0035-418X |
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PMID:4354354 |
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Equine Behaviour @ team @ |
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2716 |
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Author |
Henry, S.; Fureix, C.; Rowberry, R.; Bateson, M.; Hausberger, M. |
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Title |
Do horses with poor welfare show 'pessimistic' cognitive biases? |
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Journal Article |
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2017 |
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The Science of Nature |
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Sci. Nat. |
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104 |
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1 |
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8 |
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This field study tested the hypothesis that domestic horses living under putatively challenging-to-welfare conditions (for example involving social, spatial, feeding constraints) would present signs of poor welfare and co-occurring pessimistic judgement biases. Our subjects were 34 horses who had been housed for over 3 years in either restricted riding school situations (e.g. kept in single boxes, with limited roughage, ridden by inexperienced riders; N = 25) or under more naturalistic conditions (e.g. access to free-range, kept in stable social groups, leisure riding; N = 9). The horses' welfare was assessed by recording health-related, behavioural and postural indicators. Additionally, after learning a location task to discriminate a bucket containing either edible food ('positive' location) or unpalatable food ('negative' location), the horses were presented with a bucket located near the positive position, near the negative position and halfway between the positive and negative positions to assess their judgement biases. The riding school horses displayed the highest levels of behavioural and health-related problems and a pessimistic judgment bias, whereas the horses living under more naturalistic conditions displayed indications of good welfare and an optimistic bias. Moreover, pessimistic bias data strongly correlated with poor welfare data. This suggests that a lowered mood impacts a non-human species' perception of its environment and highlights cognitive biases as an appropriate tool to assess the impact of chronic living conditions on horse welfare. |
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1432-1904 |
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Equine Behaviour @ team @ Henry2017 |
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6665 |
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