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Author Krueger, K.; Trager, L.; Farmer, K.; Byrne, R.
Title Tool Use in Horses Type Journal Article
Year 2022 Publication (up) Animals Abbreviated Journal Animals
Volume 12 Issue 15 Pages 1876
Keywords crowdsourcing; horse; innovation; mule; management; tool use
Abstract Tool use has not yet been confirmed in horses, mules or donkeys. As this subject is difficult to research with conventional methods, we used a crowdsourcing approach to gather data. We contacted equid owners and carers and asked them to report and video examples of �unusual� behaviour via a dedicated website. We also searched YouTube and Facebook for videos of equids showing tool use. From 635 reports, including 1014 behaviours, we found 20 cases of tool use, 13 of which were unambiguous in that it was clear that the behaviour was not trained, caused by reduced welfare, incidental or accidental. We then assessed (a) the effect of management conditions on tool use and (b) whether the animals used tools alone, or socially, involving other equids or humans. We found that management restrictions were associated with corresponding tool use in 12 of the 13 cases (p = 0.01), e.g., equids using sticks to scrape hay within reach when feed was restricted. Furthermore, 8 of the 13 cases involved other equids or humans, such as horses using brushes to groom others. The most frequent tool use was for foraging, with seven examples, tool use for social purposes was seen in four cases, and there was just one case of tool use for escape. There was just one case of tool use for comfort, and in this instance, there were no management restrictions. Equids therefore can develop tool use, especially when management conditions are restricted, but it is a rare occurrence.
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Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title Animals
Series Volume 12 Series Issue 15 Edition
ISSN 2076-2615 ISBN Medium
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 6695
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Author Dunbar, R.I.M.
Title The social brain hypothesis and its implications for social evolution Type Journal Article
Year 2009 Publication (up) Annals of Human Biology Abbreviated Journal Annals of Human Biology
Volume 36 Issue 5 Pages 562-572
Keywords
Abstract The social brain hypothesis was proposed as an explanation for the fact that primates have unusually large brains for body size compared to all other vertebrates: Primates evolved large brains to manage their unusually complex social systems. Although this proposal has been generalized to all vertebrate taxa as an explanation for brain evolution, recent analyses suggest that the social brain hypothesis takes a very different form in other mammals and birds than it does in anthropoid primates. In primates, there is a quantitative relationship between brain size and social group size (group size is a monotonic function of brain size), presumably because the cognitive demands of sociality place a constraint on the number of individuals that can be maintained in a coherent group. In other mammals and birds, the relationship is a qualitative one: Large brains are associated with categorical differences in mating system, with species that have pairbonded mating systems having the largest brains. It seems that anthropoid primates may have generalized the bonding processes that characterize monogamous pairbonds to other non-reproductive relationships (?friendships?), thereby giving rise to the quantitative relationship between group size and brain size that we find in this taxon. This raises issues about why bonded relationships are cognitively so demanding (and, indeed, raises questions about what a bonded relationship actually is), and when and why primates undertook this change in social style.
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Publisher Taylor & Francis Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0301-4460 ISBN Medium
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Notes doi: 10.1080/03014460902960289 Approved no
Call Number Equine Behaviour @ team @ Serial 6546
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Author Galef, B.G.
Title Enduring social enhancement of rats' preferences for the palatable and the piquant Type Journal Article
Year 1989 Publication (up) Appetite Abbreviated Journal Appetite
Volume 13 Issue 2 Pages 81-92
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Abstract In three experiments on the social induction of food preferences in rats, I found: (a) that eight 30-min exposures of a naive “observer” rat to a “demonstrator” rat fed one of two approximately equipalatable diets produced observer preference for the diet fed to its demonstrator that lasted for more than a month, (b) that simple exposure of naive subjects to a diet itself, rather than to a rat that had eaten a diet, was not sufficient to enhance preference for that diet, and (c) that lasting preference for an unpalatable, piquant diet could also be established by exposing naive rats to demonstrators that had eaten the piquant diet, but not by simply exposure to the piquant diet itself. These findings are consistent with the hypothesis proposed by both Birch and Rozin that social-affective contexts are important in establishing stable, learned preferences for foods.
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Series Volume Series Issue Edition
ISSN 0195-6663 ISBN Medium
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 6567
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Author Blakeman, N.E.; Friend, T.H.
Title Visual discrimination at varying distances in Spanish goats Type Journal Article
Year 1986 Publication (up) Appl Anim Behav Sci Abbreviated Journal
Volume 16 Issue Pages
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Call Number Equine Behaviour @ team @ Blakeman1986 Serial 6251
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Author O'Brien, P.H.
Title Feral goat social organization: a review and comparative analysis Type Journal Article
Year 1988 Publication (up) Appl Anim Behav Sci Abbreviated Journal
Volume 21 Issue Pages
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Notes Approved no
Call Number Equine Behaviour @ team @ O'Brien1988 Serial 6270
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Author Briefer, E.F.; McElligott, A.G.
Title Rescued goats at a sanctuary display positive mood after former neglect Type Journal Article
Year 2013 Publication (up) Appl Anim Behav Sci Abbreviated Journal
Volume 146 Issue Pages
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Notes Approved no
Call Number Equine Behaviour @ team @ Briefer2013 Serial 6287
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Author Albiach-Serrano, A.; Bräuer, J.; Cacchione, T.; Zickert, N.; Amici, F.
Title The effect of domestication and ontogeny in swine cognition (Sus scrofa scrofa and S. s. domestica) Type Journal Article
Year 2012 Publication (up) Appl Anim Behav Sci Abbreviated Journal
Volume 141 Issue Pages
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Notes Approved no
Call Number Equine Behaviour @ team @ Albiach-Serrano2012 Serial 6329
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Author Frank, H.; Frank, M.G.
Title On the effects of domestication on canine social development and behavior Type Journal Article
Year 1982 Publication (up) Appl Anim Ethol Abbreviated Journal
Volume 8 Issue Pages
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Notes Approved no
Call Number Equine Behaviour @ team @ Frank1982 Serial 6259
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Author Dugnol, B.; Fernández, C.; Galiano, G.
Title Wolf population counting by spectrogram image processing Type Journal Article
Year 2007 Publication (up) Appl Math Comput Abbreviated Journal
Volume 186 Issue Pages
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Notes Approved no
Call Number Equine Behaviour @ team @ Dugnol2007 Serial 6464
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Author Dugnol, B.; Fernández, C.; Galiano, G.; Velasco, J.
Title Implementation of a diffusive differential reassignment method for signal enhancement: An application to wolf population counting Type Journal Article
Year 2007 Publication (up) Appl Math Comput Abbreviated Journal
Volume 193 Issue Pages
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Notes Approved no
Call Number Equine Behaviour @ team @ Dugnol2007 Serial 6465
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