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Author |
Leonard, M.L.; Horn, A.G.; Eden, S.F. |
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Title |
Parent-offspring aggression in moorhens |
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Year |
1988 |
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Behav. Ecol. Sociobiol. |
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23 |
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265-270 |
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Abstract |
The purpose of this study was to explain parental aggression to offspring in the moorhen (Gallinula chloropus). Males and females did not feed different subsets of chicks. In addition, there was a positive correlation between feeding rates of each parent to a particular chick and the number of attacks (tousles) directed to that chick, contrary to what was expected if aggression served to divide the brood. In moorhens, large chicks outcompeted small chicks for parental feedings. However, adults were more aggressive to large chicks and as a result small chicks spent significantly more time closer to parents and received more feedings than large chicks. In 84% of broods every chick was attacked at least once, although large chicks were attacked more often than small chicks. The behaviour of chicks changed immediately after an attack (Table 2). Before an attack chicks were <1 m from the parents while after an attack they were >1 m. The apparent effect of parental aggression in moorhens is to reduce demands by chicks for feedings. Aggression appears to reduce sibling competition and to encourage chick independence. |
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10.1007/Bf00302949 |
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Call Number |
Equine Behaviour @ team @ |
Serial |
4905 |
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Author |
Jenks, S. M. |
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Title |
Behavioral regulation of social organization and mating in a captive wolf pack |
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1988 |
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Ph.D. thesis |
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Univ. Conn. Dept. Biobehavioral Sci |
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Equine Behaviour @ team @ |
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5237 |
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Author |
Boyd L. |
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Title |
The behaviour of Przewalski’s horses. |
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1988 |
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Ph.D. thesis |
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Cornell University |
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Ithaca, NY. |
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Equine Behaviour @ team @ |
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5432 |
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Author |
Seyfarth, R. M.; Cheney, D. L. |
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Title |
Do monkeys understand their realtions? |
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1988 |
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Machiavellian Intelligence |
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Oxford University Press |
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Oxford |
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Byrne, R.; Whiten, A. |
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0-19-852175-8 |
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Equine Behaviour @ team @ |
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5457 |
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Author |
Milton, K. |
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Title |
Foraging behaviour and the evolution of primate intelligence. |
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Year |
1988 |
Publication |
Machiavellian Intelligence |
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285–409 |
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Oxford Univ Press |
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Oxford |
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Byrne, Richard ;Whiten, Andrew |
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0-19-852175-8 |
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Equine Behaviour @ team @ |
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5458 |
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Author |
Dukas, Reuven (ed) |
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Title |
Cognitive Ecology |
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Year |
1988 |
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University of Chicago Press. |
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Chicago |
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Dukas, Reuven |
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Call Number |
Equine Behaviour @ team @ |
Serial |
5464 |
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Author |
de Waal, F.B.M.; Luttrell, L.M. |
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Title |
Mechanisms of social reciprocity in three primate species: Symmetrical relationship characteristics or cognition? |
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Year |
1988 |
Publication |
Ethology and Sociobiology |
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Volume |
9 |
Issue |
2–4 |
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101-118 |
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Reciprocity; Agonistic intervention; Cognition; Chimpanzees; Macaques |
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Agonistic intervention behavior was observed in captive groups of chimpanzees (Pan troglodytes), rhesus monkeys (Macaca mulatta), and stumptail monkeys (M. arctoides). Reciprocity correlations of interventions were determined while removing from the data the effects of several symmetrical relationship characteristics, that is, matrillineal kinship, proximity relations, and same-sex combination. It was considered likely that if significant reciprocity persisted after controlling for these characteristics, the reciprocity was based on cognitive mechanisms. Statistical significance was tested by means of recently developed matrix permutation procedures. All three species exhibited significant reciprocity with regard to beneficial interventions, even after controlling for symmetrical traits. Harmful interventions were, however, reciprocal among chimpanzees only. This species showed a “revenge system”, that is, if A often intervened against B, B did the same to A. In contrast, both macaque species showed significantly inversed reciprocity in their harmful interventions: if A often intervened against B, B rarely intervened against A. Further analysis indicates that the strict hierarchy of macaques prevents them from achieving complete reciprocity. Compared to chimpanzees, macaques rarely intervene against higher ranking group members. The observed contrast can be partially explained on the basis of differences in available space, as indicated by a comparison of indoor and outdoor living conditions for the chimpanzee colony. Yet, even when such spatial factors are taken into account, substantial behavior differences between chimpanzees and macaques remain. |
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ISSN |
0162-3095 |
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Call Number |
Equine Behaviour @ team @ |
Serial |
5809 |
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Author |
Kruska, D. |
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Title |
Mammalian domestication and its effect on brain structure and behavior |
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Year |
1988 |
Publication |
Intelligence and Evolutionary Biology |
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Springer-Verlag |
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New York |
Editor |
Jerison, H.J.; Jerison, I. |
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Equine Behaviour @ team @ Kruska1988 |
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6232 |
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Author |
O'Brien, P.H. |
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Title |
Feral goat social organization: a review and comparative analysis |
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1988 |
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Appl Anim Behav Sci |
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21 |
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Equine Behaviour @ team @ O'Brien1988 |
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6270 |
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Author |
Jerison H. J. |
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Title |
Intelligence and Evolutionary Biology |
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1988 |
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Jerison H. J., Jerison, J. |
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Equine Behaviour @ team @ |
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6402 |
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