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| Author |
Cloutier, S.; Newberry, R.C.; Honda, K. |
| Title |
Comparison of social ranks based on worm-running and aggressive behaviour in young domestic fowl |
Type |
Journal Article |
| Year |
2004 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
| Volume |
65 |
Issue |
1 |
Pages |
79-86 |
| Keywords |
Aggression; Social behaviour; Dominance; Play; Chickens; Animal welfare |
| Abstract |
Worm-running is behaviour in which a chick runs carrying a worm-like object while flock mates follow and attempt to grab the object from its beak. We hypothesised that social ranks based on worm-running frequency are stable over time and are positively correlated with social ranks based on success in aggressive interactions when older. At 8-12 days of age, we scored worm-running in 17 groups of 12 female White Leghorn chicks during three 10-min tests. Based on instantaneous scans at 5-s intervals, the bird carrying the `worm' most often was placed in rank one and so on down the rank order. These tests were repeated at 68-70 days of age. An aggression index for each bird was calculated as the number of aggressive acts given, divided by the number given and received, during three 1-h observation periods when the birds were 68-70 days. Ranks obtained in worm-running tests were positively correlated over the two age periods (P<0.05) but were not correlated with ranks based on the aggression index (P>0.05). Our results indicate that worm-running ranks are not predictive of success in aggressive interactions. Instead, worm-running fits some criteria for play. |
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Allcroft, D. J.; Tolkamp, B. J.; Glasbey, C. A.; Kyriazakis, I. |
| Title |
The importance of `memory' in statistical models for animal feeding behaviour |
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Journal Article |
| Year |
2004 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
| Volume |
67 |
Issue |
1 |
Pages |
99-109 |
| Keywords |
Cow; Feeding data; Bouts; Memory; Satiety; Latent structure; Model comparison |
| Abstract |
We investigate models for animal feeding behaviour, with the aim of improving understanding of how animals organise their behaviour in the short term. We consider three classes of model: hidden Markov, latent Gaussian and semi-Markov. Each can predict the typical `clustered' feeding behaviour that is generally observed, however they differ in the extent to which `memory' of previous behaviour is allowed to affect future behaviour. The hidden Markov model has `lack of memory', the current behavioural state being dependent on the previous state only. The latent Gaussian model assumes feeding/non-feeding periods to occur by the thresholding of an underlying continuous variable, thereby incorporating some `short-term memory'. The semi-Markov model, by taking into account the duration of time spent in the previous state, can be said to incorporate `longer-term memory'. We fit each of these models to a dataset of cow feeding behaviour. We find the semi-Markov model (longer-term memory) to have the best fit to the data and the hidden Markov model (lack of memory) the worst. We argue that in view of effects of satiety on short-term feeding behaviour of animal species in general, biologically suitable models should allow `memory' to play a role. We conclude that our findings are equally relevant for the analysis of other types of short-term behaviour that are governed by satiety-like principles. |
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Equine Behaviour @ team @ |
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2350 |
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Le Pendu, Y.; Guilhem, C.; Briedermann, L.; Maublanc, M.-L.; Gerard, J.-F. |
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Interactions and associations between age and sex classes in mouflon sheep (Ovis gmelini) during winter |
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Journal Article |
| Year |
2000 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
| Volume |
52 |
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2-3 |
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97-107 |
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Group composition; Interactive behaviour; Sexual segregation; Social organisation; Ungulate; Wild sheep |
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Equine Behaviour @ team @ |
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4248 |
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| Author |
Gärdenfors P. |
| Title |
Cued and detached representations in animal cognition |
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Journal Article |
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1995 |
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Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
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35 |
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263-273 |
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refbase @ user @ |
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3454 |
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| Author |
Beer C.G. |
| Title |
Trial and error in the evolution of cognition |
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Journal Article |
| Year |
1995 |
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Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
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35 |
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215-224 |
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3455 |
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Sutton J.E.; Roberts W.A. |
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Do pigeons show incidental timing? Some experiments and a suggested hierarchical framework for the study of attention in animal cognition |
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Journal Article |
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1998 |
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Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
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44 |
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263-275 |
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refbase @ user @ |
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3463 |
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Mercado E.; Killebrew D.A.; Pack A.A.; Macha I.V.B.; Herman L.M. |
| Title |
Generalization of 'same-different' classification abilities in bottlenosed dolphins |
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Journal Article |
| Year |
2000 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
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50 |
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79-94 |
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3479 |
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Lejeune, H.; Macar, F.; Zakay, D. |
| Title |
Attention and timing: dual-task performance in pigeons |
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Journal Article |
| Year |
1999 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
| Volume |
45 |
Issue |
1-3 |
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141-157 |
| Keywords |
Timing; Dual task; Attention; Pigeons |
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Pigeons were exposed to an analog of a `dual-task' procedure used to test attentional models of timing in humans. After separate training on an auditory duration discrimination and on a variable ratio (VR) schedule, VR episodes lasting for 5 s were superimposed on the stimuli to be timed, either early (E) or late (L) during the trial. Trials with VR yielded underestimation of the target durations (increased % of `short' choices), relative to trials without VR, and this effect was stronger under the L than under the E condition. Data were similar to those collected with humans and support attentional models of timing according to which the simultaneous non-timing task uses processing resources which are diverted from the timing mechanisms. |
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Equine Behaviour @ team @ |
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3582 |
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Le Scolan, N.; Hausberger, M.; Wolff, A. |
| Title |
Stability over situations in temperamental traits of horses as revealed by experimental and scoring approaches |
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Journal Article |
| Year |
1997 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
| Volume |
41 |
Issue |
3 |
Pages |
257-266 |
| Keywords |
Behavioural tests; Horse; Ratings; Temperament |
| Abstract |
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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Byrne, T.; Sutphin, G.; Poling, A. |
| Title |
Acquisition, extinction, and reacquisition of responding with delayed and immediate reinforcement |
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Journal Article |
| Year |
1998 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
| Volume |
43 |
Issue |
1 |
Pages |
97-101 |
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Acquisition; Delayed reinforcement; Extinction; Rats |
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The present study investigated acquisition, extinction, and reacquisition of free-operant responding when rats' lever presses produced water after a resetting delay of 0, 10, 20, or 30 s. Results indicated that: (1) responding was acquired rapidly at all delays without shaping or autoshaping; (2) resistance to extinction was directly related to delay length and inversely related to intermittency of reinforcement; (3) responding acquired with delayed reinforcement recovered less rapidly from extinction, and was less efficient, than responding acquired with immediate reinforcement. Comparing these results with those of studies using discrete-trials and free-operant procedures with no reinforcement delay suggest that the specific conditions under which behavior is maintained determines, in part, the behavioral effects of delay and intermittency of reinforcement. |
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Equine Behaviour @ team @ |
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3601 |
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