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Author |
Fuller, T.K.; Sampson, B.A. |
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Title |
Evaluation of a simulated howling survey for wolves |
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1988 |
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J Widl Manag |
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52 |
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Equine Behaviour @ team @ Fuller1988 |
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6458 |
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Author |
Burch, J.W.; Layne, G.A.; Follmann, E.H.; Rexstad, E.A. |
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Title |
Evaluation of Wolf Density Estimation from Radiotelemetry Data |
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2005 |
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Wildl Soc Bull |
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33 |
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Equine Behaviour @ team @ Burch2005 |
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6477 |
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Author |
Pérez-Barbería, F.J.; Shultz, S.; Dunbar, R.I. |
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Title |
Evidence for coevolution of sociality and relative brain size in three orders of mammals |
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2007 |
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Evolution |
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61 |
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Equine Behaviour @ team @ Pérez-Barbería2007 |
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6221 |
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Fagot, J.; Cook, R.G. |
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Evidence for large long-term memory capacities in baboons and pigeons and its implications for learning and the evolution of cognition |
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2006 |
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Proc Natl Acad Sci U S A |
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103 |
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Equine Behaviour @ team @ Fagot2006 |
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6278 |
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Author |
Marr, I.; Farmer, K.; Krueger, K. |
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Title |
Evidence for Right-Sided Horses Being More Optimistic than Left-Sided Horses |
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Journal Article |
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Year |
2018 |
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Animals |
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Animals |
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8 |
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12 |
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219 |
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Abstract |
An individual's positive or negative perspective when judging an ambiguous stimulus (cognitive bias) can be helpful when assessing animal welfare. Emotionality, as expressed in approach or withdrawal behaviour, is linked to brain asymmetry. The predisposition to process information in the left or right brain hemisphere is displayed in motor laterality. The quality of the information being processed is indicated by the sensory laterality. Consequently, it would be quicker and more repeatable to use motor or sensory laterality to evaluate cognitive bias than to perform the conventional judgment bias test. Therefore, the relationship between cognitive bias and motor or sensory laterality was tested. The horses (n = 17) were trained in a discrimination task involving a box that was placed in either a “positive” or “negative” location. To test for cognitive bias, the box was then placed in the middle, between the trained positive and negative location, in an ambiguous location, and the latency to approach the box was evaluated. Results indicated that horses that were more likely to use the right forelimb when moving off from a standing position were more likely to approach the ambiguous box with a shorter latency (generalized linear mixed model, p < 0.01), and therefore displayed a positive cognitive bias (optimistic). |
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2076-2615 |
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no |
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Equine Behaviour @ team @ ani8120219 |
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6439 |
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Author |
Frank, H. |
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Title |
Evolution of canine information processing under conditions of natural and artificial selection |
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1980 |
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Z Tierpsychol |
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5 |
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Equine Behaviour @ team @ Frank1980 |
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6243 |
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Author |
Van Horik, J.; Emery, N. |
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Title |
Evolution of cognition |
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Year |
2011 |
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Wiley Interdiscip Rev Cogn Sci |
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2 |
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Equine Behaviour @ team @ Van Horik2011 |
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6230 |
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Author |
Bandini , E.; Motes-Rodrigo, A.; Steele, M.P.; Rutz, C.; Tennie, C. |
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Title |
Examining the mechanisms underlying the acquisition of animal tool behaviour |
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Journal Article |
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2020 |
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Biology Letters |
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Biol. Lett. |
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16 |
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2020122 |
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Equine Behaviour @ team @ |
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6660 |
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Author |
Szabó, L.; Heltai, M.; Szucs, E.; Lanszki, J.; Lehoczki, R. |
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Title |
Expansion range of the golden jackal in Hungary between 1997 and 2006 |
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Journal Article |
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2009 |
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Mammalia |
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73 |
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Equine Behaviour @ team @ Szabó2009 |
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6461 |
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Author |
Mottley, K.; Giraldeau, L.A. |
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Experimental evidence that group foragers can converge on predicted producer-scrounger equilibria |
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Journal Article |
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2000 |
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Animal Behaviour. |
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Anim. Behav. |
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60 |
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3 |
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341-350 |
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When foraging together, animals are often observed to feed from food discoveries of others. The producer-scrounger (PS) game predicts how frequently this phenomenon of food parasitism should occur. The game assumes: (1) at any moment all individuals can unambiguously be categorized as either playing producer (searching for undiscovered food resources) or scrounger (searching for exploitation opportunities), and (2) the payoffs received from the scrounger tactic are negatively frequency dependent; a scrounger does better than a producer when the scrounger tactic is rare, but worse when it is common. No study to date has shown that the payoffs of producer and scrounger conform to the game's assumptions or that groups of foragers reach the predicted stable equilibrium frequency (SEF) of scrounger, whereby both tactics obtain the same payoff. The current study of three captive flocks of spice finches, Lonchura punctulata, provides the first test of the PS game using an apparatus in which both assumptions of the PS game are met. The payoffs to the scrounger, measured as feeding rate (seeds/s), were highly negatively frequency dependent on the frequency of scrounger. The feeding rate for scrounger declined linearly while the rate for producer either declined only slightly or not at all with increasing scrounger frequency. When given the opportunity to alternate between tactics, the birds changed their use of each, such that the group converged on the predicted SEF of scrounger after 5-8 days of testing. Individuals in this study, therefore, demonstrated sufficient plasticity in tactic use such that the flock foraged at the SEF of scrounger. Copyright 2000 The Association for the Study of Animal Behaviour. |
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Department of Biology, Concordia University |
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English |
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0003-3472 |
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PMID:11007643 |
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2136 |
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