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Le Scolan, N.; Hausberger, M.; Wolff, A. |
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Title |
Stability over situations in temperamental traits of horses as revealed by experimental and scoring approaches |
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Journal Article |
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1997 |
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Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
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41 |
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3 |
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257-266 |
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Behavioural tests; Horse; Ratings; Temperament |
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Individual behavioural reactions of adult horses in a variety of experimental tests were compared with ratings by riding teachers. The tests were made in a non working situation, with the animals being released in an arena, a box (arena test, new object test, learning tests) or handled (new object/handling situation). The traits rated by teachers were fearfulness, nervousness, gregariousness and learning abilities at work (ridden or handled). Despite a great homogeneity in the reactions exhibited by the horses in the different situations, large individual differences were present. Correlations appeared between the reactivity in the arena test and the score of gregariousness, between the reactivity in the novel object test and the rating of nervousness when ridden, between the results in the handling test and the rating of general fearfulness and between the ability to memorise an instrumental task and the score of general learning ability. Such results strengthen the idea that there are underlying behavioural dispositions that are stable across situations and that the experimental tests may be good predictors of the temperament in untrained animals. |
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Equine Behaviour @ team @ |
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3591 |
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Foster, T.M.; Matthews, L.R.; Temple, W.; Poling, A. |
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Title |
Concurrent schedule performance in domestic goats: persistent undermatching |
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Journal Article |
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Year |
1997 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
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40 |
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3 |
Pages |
231-237 |
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Matching equation; Undermatching; Variable-interval schedule; Nose-press response; Goats |
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Performance of nine domestic goats responding under concurrent variable-interval variable-interval schedules of food delivery was examined, with results analyzed in terms of the generalized matching equation. Substantial undermatching of response and time allocation ratios to obtained reinforcement ratios was evident. Post-reinforcement pause time ratios approximately matched obtained reinforcement ratios. Subtracting these times from total time allocation values yielded net time allocation ratios, which undermatched obtained reinforcement ratios to a greater degree than whole-session time allocation ratios. Slopes of regression lines relating behavioral outputs to environmental inputs characteristically were below 0.6, which is similar to previous findings in dairy cows tested under comparable conditions. |
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Equine Behaviour @ team @ |
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3602 |
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Robinson, T.A.; Foster, T.M.; Temple, W.; Poling, A. |
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Title |
Performance of domestic hens under progressive-ratio schedules of food delivery |
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Journal Article |
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Year |
1995 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
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34 |
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3 |
Pages |
233-239 |
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Progressive-ratio schedule; Domestic hen; Behavioral economics; Satiation |
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Domestic hens were exposed to progressive-ratio 2 and progressive-ratio 10 schedules of food delivery with different initial ratios (2, 10, 20, 30, and 40). Breaking points, defined as the largest ratios completed before responding ceased for 600 consecutive seconds, were recorded under all conditions. In general, breaking points were higher under the PR 10 schedule than under the PR 2 schedule, and the value of the initial ratio did not systematically affect the breaking point. The former finding suggests that relative satiation affected breaking points in the present study, but the latter finding suggests that the primary determinant was the `price' of the reinforcer, defined in terms of the number of responses required to produce it. Breaking points were similar under conditions where initial ratios changed from session to session and under more conventional conditions, where initial ratios remained unchanged over several sessions. |
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Equine Behaviour @ team @ |
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3605 |
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Petherick, J.C.; Seawright, E.; Waddington, D. |
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Title |
Influence of motivational state on choice of food or a dustbathing/foraging substrate by domestic hens |
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Year |
1993 |
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Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
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28 |
Issue |
3 |
Pages |
209-220 |
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Keywords |
Food; Learning; Litter; Motivation; Poultry; Preference |
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Domestic hens were trained to run a Y-maze and make an association between differently coloured doorways and access to food pellets or sand. The hens were tested for their choice of doorway when the goals were not visible from the choice point and when they were food or sand deprived. Hens made the choice appropriate to their deprivation state (correct choice) significantly more often for food than sand and were faster at choosing and entering the goal box when food deprived. In a follow up experiment, the goals were visible from the choice point. Again the hens chose correctly significantly more often when food than sand deprived and made the choice and entered the goal box faster when food deprived. Thus, failure to choose sand in the first experiment was not due to an inability to learn the association, but appears to result from a strong motivation to feed in the Y-maze, even when not food deprived, and a weak motivation to dustbathe or forage, even when sand deprived. |
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Equine Behaviour @ team @ |
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3608 |
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Petherick, J.C.; Waddington, D.; Duncan, I.J.H. |
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Title |
Learning to gain access to a foraging and dustbathing substrate by domestic fowl: is `out of sight out of mind'? |
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Year |
1991 |
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Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
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22 |
Issue |
3 |
Pages |
213-226 |
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Domestic fowl; Dustbathing; Welfare; Learning; Cognition |
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Domestic fowl were deprived of the opportunity to perform litter-related behaviour for three or four days and were tested in a Y-maze (which they had previously been trained to run) for their ability to associate a coloured cue with gaining access to peat. When the goal boxes were within sight of the choice point, most birds chose peat. However, when the birds had to rely solely on the coloured cue only one bird from 12 showed learning. However, the birds seemed to have some expectation of a reward, as they ran faster if, on the previous trial, they had chosen peat. The inability of the birds to learn the association may have been an artefact of the schedule of deprivation and testing, for when they were hungry and tested in the same way they were again unable to learn an association between the same coloured cue and food reward. The experiment with peat was repeated using “massed” trials (several trials in immediate succession) during training and testing and six from 15 birds showed learning. These results suggest that the initial failure to learn was probably due to the training and testing schedule, that access to peat appears to be rewarding and that hens can learn an association between an abstract cue and a rewarding consequence. This is consistent with the possibility that domestic fowls may have some cognitive representation of peat when it is out of sight. |
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Equine Behaviour @ team @ |
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3609 |
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Author |
Lafferty, K.D. |
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Title |
Look what the cat dragged in: do parasites contribute to human cultural diversity? |
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Journal Article |
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Year |
2005 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
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68 |
Issue |
3 |
Pages |
279-282 |
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Adaptation, Physiological/physiology; Adaptation, Psychological/physiology; Animals; Behavior/physiology; *Behavior Control; Cats/*parasitology; Cultural Diversity; Host-Parasite Relations; Humans; Personality/*physiology; Toxoplasma/*physiology; Toxoplasmosis/parasitology/*psychology |
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Western Ecological Research Center, United States Geological Survey, c/o Marine Science Institute, University of California, Santa Barbara, CA 93106, USA. lafferty@lifesci.ucsb.edu |
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English |
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0376-6357 |
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PMID:15792708 |
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Equine Behaviour @ team @ |
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4148 |
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Author |
Feh, C.; Munkhtuya, B. |
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Title |
Male infanticide and paternity analyses in a socially natural herd of Przewalski`s horses: Sexual selection? |
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Journal Article |
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2008 |
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Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
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78 |
Issue |
3 |
Pages |
335-339 |
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Keywords |
DNA paternity analysis; Human disturbance; Male infanticide; Przewalski's horse (Equus ferus przewalskii); Sexual selection |
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The sexual selection hypothesis explains infanticide by males in many mammals. In our 11-year study, we investigated this hypothesis in a herd of Przewalski's horses where we had witnessed infanticidal attacks. Infanticide was highly conditional and not simply linked to takeovers. Attacks occurred in only five of 39 cases following a takeover, and DNA paternity revealed that, although infanticidal stallions were not the genetic fathers in four cases out of five, stallions present at birth did not significantly attempt to kill unrelated foals. Infanticide did not reduce birth intervals; only in one case out of five was the infanticidal stallion, the father of the next foal; mothers whose foals were attacked subsequently avoided associating with infanticidal stallions. Therefore, evidence for the sexual selection hypothesis was weak. The “human disturbance” hypothesis received some support, as only zoo bred stallions which grew up in unnatural social groups attacked foals of mares which were pregnant during takeovers. |
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Equine Behaviour @ team @ |
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4632 |
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Author |
Reid, P.J. |
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Title |
Adapting to the human world: Dogs' responsiveness to our social cues |
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Journal Article |
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2009 |
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Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
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80 |
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3 |
Pages |
325-333 |
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Domestic dog; Social cognition; Communicative gestures |
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Dogs are more skilful than a host of other species at tasks which require they respond to human communicative gestures in order to locate hidden food. Four basic interpretations for this proficiency surface from distilling the research findings. One possibility is that dogs simply have more opportunity than other species to learn to be responsive to human social cues. A different analysis suggests that the domestication process provided an opening for dogs to apply general cognitive problem-solving skills to a novel social niche. Some researchers go beyond this account and propose that dogs' co-evolution with humans equipped them with a theory of mind for social exchanges. Finally, a more prudent approach suggests that sensitivity to the behaviours of both humans and conspecifics would be particularly advantageous for a social scavenger like the dog. A predisposition to attend to human actions allows for rapid early learning of the association between gestures and the availability of food. |
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0376-6357 |
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Equine Behaviour @ team @ |
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4755 |
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Author |
Kotrschal, K.; Schöberl, I.; Bauer, B.; Thibeaut, A.-M.; Wedl, M. |
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Title |
Dyadic relationships and operational performance of male and female owners and their male dogs |
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Journal Article |
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Year |
2009 |
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Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
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81 |
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3 |
Pages |
383-391 |
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Dyadic interactions; Human-animal companions; Human-animal relationships; Human-dog dyads; Personality; Social stress |
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In the paper we investigate how owner personality, attitude and gender influence dog behavior, dyadic practical functionality and the level of dog salivary cortisol. In three meetings, 12 female and 10 male owners of male dogs answered questionnaires including the Neo-FFI human personality inventory. Their dyadic behavior was video-taped in a number of test situations, and saliva samples were collected. Owners who scored highly in neuroticism (Neo-FFI dimension one) viewed their dogs as social supporters and spent much time with them. Their dogs had low baseline cortisol levels, but such dyads were less successful in the operational task. Owners who scored highly in extroversion (Neo-FFI dimension two) appreciated shared activities with their dogs which had relatively high baseline cortisol values. Dogs that had female owners were less sociable-active (dog personality axis 1) than dogs that had male owners. Therefore, it appears that owner gender and personality influences dyadic interaction style, dog behavior and dyadic practical functionality. |
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0376-6357 |
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Equine Behaviour @ team @ |
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4947 |
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Author |
Wolff, A.; Hausberger, M.; Le Scolan, N. |
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Title |
Experimental tests to assess emotionality in horses |
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Year |
1997 |
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Behavioural Processes |
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Behav. Process. |
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40 |
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3 |
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209-221 |
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Emotivity; Gregariousness; Horse; Neophobia; Open-field |
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Different tests were used to assess different aspects of the emotionality of 1-3 year-old horses: arena test; a [`]novel object' test; and a handling test. In reaction to the test situations no important differences were observed according to age or sex in the behaviour patterns, but clear individual differences were observed within these classes. The arena test seemed to reveal the degree of gregariousness of the animals whereas the results in the two other tests were correlated and seemed to reflect an inherent degree of fearfulness in the horse. Indices were developed that enabled to rank the animals, by taking into account all behaviour patterns shown. Such individual characteristics might have some genetic basis: half-siblings tended to behave the same way in most cases. |
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0376-6357 |
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Equine Behaviour @ team @ |
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5018 |
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