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Parker, G.A.; MacNair, M.R. |
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Models of parent-offspring conflict. I. Monogamy |
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Journal Article |
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1978 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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26 |
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97-110 |
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Theoretical models for Trivers (1974) concept of parent-offspring conflict are examined for species in which the effects of the conflict are felt by full sibs. A rare conflictor gene will spread if Image , whereÆ’(m) is the fitness gained by a conflictor relative to a non-conflictor offspring (Æ’(m) >1), and m is the amount of parental investment taken by a conflictor relative to m = 1 for a non-conflictor. The range of m alleles which can spread against the parent optimum decreases as the cost to the parent increases until a point is reached where there is no conflict of evolutionary interests. There would be no polymorphism for conflictor: non-conflictor alleles unless special conditions prevail. The conflictor allele which spreads most rapidly as a rare mutant against the parental optimum is not an evolutionarily stable strategy (ESS). The ESS for parent-offspring conflict in monogamous species has m0 = Æ’(m0)/2[dÆ’(m0)/dm0]. The analytical solutions are confirmed throughout by simulations. |
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10.1016/0003-3472(78)90009-X |
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Equine Behaviour @ team @ |
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4901 |
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Murphy, L.B. |
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Title |
The practical problems of recognizing and measuring fear and exploration behaviour in the domestic fowl |
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Year |
1978 |
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Animal Behaviour |
Abbreviated Journal |
Anim. Behav. |
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26, Part 2 |
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422-431 |
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In studying behaviour supposedly motivated by fear or by exploration, consideration should be given to the biological functions of these two systems and to the ways in which the experimental environment may affect the performance of ‘natural’ responses. Extreme caution is needed in comparing the effectiveness of different stimuli and the amounts of fear or exploration represented by different responses. In particular, it should never be assumed when making such comparisons that the relative intensities of different stimuli and responses are constant. |
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0003-3472 |
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Equine Behaviour @ team @ |
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5640 |
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Duncan, P.; Vigne, N. |
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The effect of group size in horses on the rate of attacks by blood-sucking flies |
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Year |
1979 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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27 |
Issue |
Part 2 |
Pages |
623-625 |
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refbase @ user @ |
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763 |
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Clutton-Brock, T.H.; Albon, S.D.; Gibson, R.M.; Guinness, F.E. |
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The logical stag: Adaptive aspects of fighting in red deer (Cervus elaphus L.) |
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Journal Article |
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Year |
1979 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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27 |
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Part 1 |
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211-225 |
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For red deer stags, fighting both has appreciable costs and yields considerable benefits. Up to 6% of rutting stags are permanently injured each year, while fighting success and reproductive success are closely related, within age groups as well as across them. Fighting behaviour is sensitive to changes in the potential benefits of fighting: stags fight most frequently and most intensely where potential benefits are high and tend to avoid fighting with individuals they are unlikely to beat. The relevance of these findings to theoretical models of fighting behaviour is discussed. |
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refbase @ user @ |
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860 |
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Roberts, J.; Kacelnik, A.; Hunter, M.L. |
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Title |
A model of sound interference in relation to acoustic communication |
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Journal Article |
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Year |
1979 |
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Animal Behaviour. |
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Anim. Behav. |
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27 |
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Part 4 |
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1271-1273 |
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2124 |
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Author |
Kacelnik, A. |
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Title |
The foraging efficiency of great tits (Parus major L.) in relation to light intensity |
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Journal Article |
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Year |
1979 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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Volume |
27 |
Issue |
Part 1 |
Pages |
237-241 |
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I report an experiment aimed at testing whether foraging efficiency of great tits is limited by light intensity at the time of the dawn chorus. Captive great tits hunting for prey under different luminance conditions were less successful in finding prey when foraging, hunted for a lower proportion of their time, and handled individual prey items for longer when luminance was under approximately 7 cd/m2. This luminance is not reached in the field until after the time of the dawn chorus, suggesting that in the early morning foraging is limited by light intensity. I suggest that a satisfactory functional explanation of the dawn chorus must take into account the comparatively low foraging opportunity early in the morning, as well as the factors affecting the opportunity for singing and other territorial activities. |
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2125 |
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Author |
Powell, R.A. |
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The dog: Its domestication and behavior : By . New York: Garland STPM Press (1978). 296 pp. $24.50 |
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Journal Article |
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Year |
1979 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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27 |
Issue |
Part 1 |
Pages |
318-1211 |
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2146 |
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Author |
Zentall, T.R.; Hogan, D.E.; Edwards, C.A.; Hearst, E. |
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Title |
Oddity learning in the pigeon as a function of the number of incorrect alternatives |
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Journal Article |
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Year |
1980 |
Publication |
Journal of experimental psychology. Animal behavior processes |
Abbreviated Journal |
J Exp Psychol Anim Behav Process |
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6 |
Issue |
3 |
Pages |
278-299 |
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Animals; Choice Behavior; *Color Perception; Columbidae; *Discrimination Learning |
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Pigeons' rate of learning a two-color oddity task increased as a function of the number of incorrect alternatives from 2 to 24 in Experiments 1, 2, and 3. In general, pigeons that were transferred from many-incorrect-alternative to two-incorrect-alternative oddity performed better than controls, but considerably below baseline (Experiments 2 and 3). In Experiment 4, pigeons showed no unconditioned tendency to peck the odd stimulus among 24 incorect alternatives, when pecks were nondifferentially reinforced, and in Experiment 5, when this procedure was preceded by oddity training, a progressive drop in odd-stimulus pecking was found. In Experiment 6, pigeons exposed to a nine-stimulus array in which the odd stimulus appeared (a) in the center or (b) separate from the array learned faster than when the odd stimulus was at the edge. This outcome suggests ththe figure-ground relation between the odd stimulus and the incorrect alternatives plays a role in the facilitation produced by increasing the number of incorrect alternatives but that poor performance on the standard, three-alternative oddity task appears to be due to center-odd trials which provide a difficult size or number discrimination. |
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0097-7403 |
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PMID:7391753 |
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refbase @ user @ |
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268 |
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Author |
Shettleworth, S.J.; Juergensen, M.R. |
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Reinforcement and the organization of behavior in golden hamsters: brain stimulation reinforcement for seven action patterns |
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Journal Article |
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Year |
1980 |
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Journal of experimental psychology. Animal behavior processes |
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J Exp Psychol Anim Behav Process |
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6 |
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4 |
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352-375 |
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Animals; Behavior, Animal/*physiology; Cricetinae; Electric Stimulation; Female; Hypothalamus/*physiology; Male; Medial Forebrain Bundle/physiology; Mesocricetus; *Reinforcement (Psychology) |
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Golden hamsters were reinforced with intracranial electrical stimulation of the lateral hypothalamus (ICS) for spending time engaging in one of seven topographically defined action patterns (APs). The stimulation used as reinforcer elicited hoarding and/or feeding and supported high rates of bar pressing. In Experiment 1, hamsters were reinforced successively for digging, open rearing, and face washing. Digging increased most in time spent, and face washing increased least. Experiments 2-5 examined these effects further and also showed that “scrabbling,” like digging, was performed a large proportion of the time, almost without interruption, for contingent ICS but that scratching the body with a hindleg and scent-marking showed relatively little effect of contingent ICS, the latter even in an environment that facilitated marking. In Experiment 6, naive hamsters received ICS not contingent on behavior every 30 sec (fixed-time 30-sec schedule). Terminal behaviors that developed on this schedule were APs that were easy to reinforce in the other experiments, but a facultative behavior, face washing, was one not so readily reinforced. Experiment 7 confirmed a novel prediction from Experiment 6--that wall rearing, a terminal AP, would be performed at a high level for contingent ICS. All together, the results point to both motivational factors and associative factors being involved in the considerable differences in performance among different reinforced activities. |
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PMID:6968817 |
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386 |
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Author |
Houpt, K.A. |
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Review of some research areas of applied and theoretical interest in domestic animal behavior |
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Journal Article |
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1980 |
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Applied Animal Ethology |
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Appl. Animal. Ethol. |
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6 |
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2 |
Pages |
111-119 |
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There are numerous areas worthy of study in the field of domestic animal behavior or applied ethology. In this paper a few areas are offerred as particularly worthy of attention. These areas are worthwhile either because they have received little or no study and are of basic interest or because they have application to current problems of livestock production. The study of cat behavior falls in the former category. Neither the food and water sources, the reproductive success rate nor even the social interactions of cats in the large populations found in both rural and urban environments are known. Pigs as a species have already been the subjects of many behavior studies; nevertheless, there are still gaps in our knowledge of the underlying principles of swine behavior. The physiological basis of maternal behavior, for example, has not been studied in swine or in any domestic species. The sensory basis of udder location by the neonatal piglet deserves study also. Some aspects of olfactory and vocal communication of pigs have been studied, but only one of what may be a large number of pheromones of pigs has been chemically identified. The message conveyed by the vocal interactions between adult swine of the same sex is unknown, as is the role of facial and postural expressions in porcine communication. The two major problems of pig behavior under conditions of intensive livestock management are tail biting and reproductive failure. The application of behavioral techniques to these problems might help to attenuate those problems as well as broaden our understanding of normal pig behavior. Horse behavior has also been a relatively neglected field of study. Of particular interest is the significance of the flehmen gesture used by both mares and stallions in a variety of situations. Flehmen may be related to the function of the vomeronasal organ, but both observational and physiological studies should be performed to verify the hypothesis. |
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refbase @ user @ |
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