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Author |
Wingfield, J. C.,; Ramenofsky, M. |
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Title |
Hormones and the behavioral ecology of stress. |
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Book Chapter |
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1999 |
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Stress physiology in animals. |
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1-51 |
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Sheffield Academic Press |
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Sheffield, United Kingdom |
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Balm, P. H. M. |
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Equine Behaviour @ team @ |
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4071 |
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Author |
Laland, K. N.; Richerson, P. J.; Boyd, R. |
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Title |
Developing a theory of animal social learning. |
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Year |
1996 |
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Social learning in animals: the roots of culture. |
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129-154 |
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Academic Press |
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San Diego, California |
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Heyes, C. M.;Galef,B. G. J. |
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Equine Behaviour @ team @ home |
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4093 |
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Author |
Tomasello, M.; Call, J. |
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Title |
Do chimpanzees know what others see ? or only what they are looking at? |
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Book Chapter |
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2006 |
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Rational Animals? |
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371-384 |
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Oxford University Press |
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Oxford |
Editor |
Nudds, M.; Hurley, S. |
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Equine Behaviour @ team @ |
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4094 |
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Author |
Kamil, A.C. |
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Title |
On the Proper Definition of Cognitive Ethology |
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1998 |
Publication |
Animal Cognition in Nature |
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1-28 |
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Summary The last 20-30 years have seen two `scientific revolutions' in the study of animal behavior: the cognitive revolution that originated in psychology, and the Darwinian, behavioral ecology revolution that originated in biology. Among psychologists, the cognitive revolution has had enormous impact. Similarly, among biologists, the Darwinian revolution has had enormous impact. The major theme of this chapter is that these two scientific research programs need to be combined into a single approach, simultaneously cognitive and Darwinian, and that this single approach is most appropriately called cognitive ethology. |
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Academic Press |
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London |
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Russell P. Balda; Irene M. Pepperberg; Alan C. Kamil |
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9780120770304 |
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Equine Behaviour @ team @ |
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4202 |
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Author |
Schneider, J.D.; Tokach, M.D.; Dritz, S.S.; Nelssen, J.L.; DeRouchey, J.M.; Goodband, R.D. |
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Title |
Effects of feeding schedule on body condition, aggressiveness, and reproductive failure in group housed sows |
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Journal Article |
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2007 |
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Journal of Animal Science |
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J. Anim Sci. |
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jas.2007-0345- |
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A total of 208 sows and 288 gilts (PIC Line C29) were used to determine the influence of feeding frequency (2 versus 6 times/d, floor fed) on performance and welfare measurements on a commercial sow farm. Treatments consisted of feeding similar amounts of feed to each sow (2.5 kg) or gilt (2.05 kg) over 2 (0700 and 1530 h) or 6 times daily (0700, 0730, 0800, 1530, 1600, and 1630). There were 8 sows or 12 gilts in each pen. Gilts and sows were moved to pens 1 to 4 d after breeding. In sows, there were no differences (P > 0.10) in ADG, backfat change, or variation in BW. There was a trend (P < 0.08) for sows fed twice a daily to farrow more total pigs born, but number born alive or other reproductive performance traits were not different (P > 0.10) among treatments. Sows fed 6 times per d had increased vocalization during the morning (P < 0.07) and afternoon (P < 0.01) feeding periods compared with sows fed twice daily. Sows fed twice daily had more skin (P < 0.01) and vulva (P < 0.04) lesions as well as a small increase in feet and leg (P < 0.01) and hoof (P < 0.02) problems. In this commercial facility, the standard management protocol required moving gilts to a different gestation facility on d 42. On d 42, 2 pens of gilts with similar breeding dates and treatment were combined and moved to another facility with larger pens until farrowing. Gilts fed 6 times daily had a tendency for greater ADG (P < 0.07) from d 0 to 42, and a tendency for greater (P < 0.09) backfat on d 42. After movement to the larger groups from d 42 to farrowing, ADG was similar (P > 0.10) for gilts fed 2 or 6 times daily. Gilts fed twice daily had lower BW variation at d 42 (P < 0.04) and tended to at farrowing (P < 0.10). In gilts, there were no differences (P > 0.10) for reproductive performance, skin and vulva lesions, and feet, leg scores. In conclusion, there were few growth, farrowing, or aggression differences among gilts fed either 2 or 6 times daily. This suggests that either feeding method is suitable for group housed gilts. Among sows, feeding frequency resulted in few growth or farrowing performance differences. Feeding 6 times daily resulted in a small but significant reduction in skin and vulva lesions and structural problem scores while increasing vocalization. Increasing the feeding frequency from 2 to 6 times daily does not appear to have a negative or positive impact on performance or welfare of group housed gilts and sows. |
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10.2527/jas.2007-0345 |
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Equine Behaviour @ team @ |
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4250 |
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Author |
Lefebvre, L.; Giraldeau, L.-A. |
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Title |
Is social learning an adaptive specialisation? |
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Book Chapter |
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Year |
1996 |
Publication |
Social learning in animals: The root of culture |
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107-128 |
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Academic Press. |
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San Diego |
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Heyes, C. M. ;B. G. Galef B. G..Jr. |
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978-0122739651 |
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Equine Behaviour @ team @ |
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4415 |
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Author |
Dyer, F. C. |
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Title |
Individual cognition and group movement: insights from social insects. |
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Book Chapter |
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2000 |
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Group Movement in Social Primates and Other Animals: Patterns, Processes, and Cognitive Implications. |
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University of Chicago Press |
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Chicago |
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Garber, P.;Boinski, S. |
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Equine Behaviour @ team @ |
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4425 |
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Author |
Grzimek, B. |
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On the Psychology of the Horse |
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1968 |
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Man and Animal: Studies in Behavior |
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37-46 |
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Cited By (since 1996): 4; Export Date: 24 October 2008 |
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Admin @ knut @ |
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4592 |
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Author |
McLean, A.N. |
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Title |
The mental processes of the horse and their consequences for training |
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2004 |
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Animal Welfare Science Centre |
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Cited By (since 1996): 1; Export Date: 24 October 2008 |
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Admin @ knut @ |
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4619 |
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Author |
Horowitz, A.; Hecht, J. |
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Title |
Examining dog–human play: the characteristics, affect, and vocalizations of a unique interspecific interaction |
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2016 |
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Animal Cognition |
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Anim. Cogn. |
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1-10 |
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Despite the growing interest in research on the interaction between humans and dogs, only a very few research projects focus on the routines between dogs and their owners. In this study, we investigated one such routine: dog–human play. Dyadic interspecific play is known to be a common interaction between owner and charge, but the details of what counts as play have not been thoroughly researched. Similarly, though people represent that “play” is pleasurable, no study has yet undertaken to determine whether different forms of play are associated with different affective states. Thus, we aimed to generate an inventory of the forms of dyadic play, the vocalizations within play, and to investigate the relationship of affect to elements of play. Via a global citizen science project, we solicited videotapes of dog–human play sessions from dog owners. We coded 187 play bouts via frame-by-frame video playback. We then assessed the relationship between various intra-bout variables and owner affect (positive or neutral) during play (dog affect was overwhelmingly positive). Amount of physical contact (“touch”), level of activity of owner (“movement”), and physical closeness of dog–owner dyad (“proximity”) were highly correlated with positive affect. Owner vocalizations were found to contain different elements in positive- and neutral-affect play. One novel category of play, “tease”, was found. We conclude that not all play is created equal: the experience of play to the owner participant is strongly related to a few identifiable characteristics of the interaction. |
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1435-9456 |
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Equine Behaviour @ team @ Horowitz.2016 |
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5947 |
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