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| Author |
Podos, J. |
| Title |
Early perspectives on the evolution of behavior: Charles Otis Whitman and Oskar Heinroth |
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Journal Article |
| Year |
1964 |
Publication |
Ethology Ecology & Evolution (EEE) |
Abbreviated Journal  |
Ethol Ecol Evol |
| Volume |
6 |
Issue |
4 |
Pages |
467-480 |
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Equine Behaviour @ team @ |
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2293 |
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| Author |
Ellis, L. |
| Title |
Dominance and reproductive success among nonhuman animals: A cross-species comparison |
Type |
Journal Article |
| Year |
1995 |
Publication |
Ethology and Sociobiology |
Abbreviated Journal |
Ethol. a. Sociob. |
| Volume |
16 |
Issue |
4 |
Pages |
257-333 |
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| Abstract |
This paper updates and extends Dewsbury's (1982) review of the literature on dominance and reproductive success (RS). The findings from approximately 700 studies are included, over two thirds of which were unavailable to Dewsbury. In order to give a highly condensed and yet meaningful overview, the main findings are represented in four tables, one for male nonprimates, one for female nonprimates, one for male primates, and one for female primates. In the tables for males, findings are analyzed in terms of six different indicators of RS, and in the tables for females, in terms of eight RS indicators. Outside the primate order, evidence largely supported the hypothesis that high-ranking males enjoy greater RS than do subordinate males. For females, studies are more evenly divided between those supporting the hypothesis that high rank and RS are positively correlated and those indicating no significant rank-RS relationship. This may reflect both the lower saliency of hierarchical relationships among females, as well as the lower variability in RS among females, relative to males. Among primates, a complex picture has emerged, especially in the case of males. Much of the complexity appears due to the importance of age and seniority in affecting dominance rank. Also, in some primate species, female preferences for sex partners seem to have little to do with the male's dominance rank, at least at the time mating takes place. Nevertheless, the majority of studies suggest that high- to middle-ranking males have at least a slight lifetime reproductive advantage over the lowest ranking males. |
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refbase @ user @ |
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722 |
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| Author |
Boyd, R.; Richerson, P.J. |
| Title |
Why does culture increase human adaptability? |
Type |
Journal Article |
| Year |
1995 |
Publication |
Ethology and Sociobiology |
Abbreviated Journal |
Ethol. a. Sociob. |
| Volume |
16 |
Issue |
2 |
Pages |
125-143 |
| Keywords |
Social learning; Adaptation; Culture; Sociobiology |
| Abstract |
It is often argued that culture is adaptive because it allows people to acquire useful information without costly learning. In a recent paper Rogers (1989) analyzed a simple mathematical model that showed that this argument is wrong. Here we show that Rogers' result is robust. As long as the only benefit of social learning is that imitators avoid learning costs, social learning does not increase average fitness. However, we also show that social learning can be adaptive if it makes individual learning more accurate or less costly. |
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Equine Behaviour @ team @ |
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4196 |
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Seferta, A.; Guay, P.-J.; Marzinotto, E.; Lefebvre, L. |
| Title |
Learning Differences between Feral Pigeons and Zenaida Doves: The Role of Neophobia and Human Proximity |
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Journal Article |
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2001 |
Publication |
Ethology |
Abbreviated Journal |
Ethology |
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107 |
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281-293 |
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Learning differences predicted from ecological variables can be confounded with differences in wariness of novel stimuli (neophobia). Previous work on feral pigeons (Columba livia), as well as on group-feeding and territorial zenaida doves (Zenaida aurita), reported individual and social learning differences predicted from social foraging mode. In the present study, we show that speed of learning a foraging task covaries with neophobia and latency to feed from a familiar dish in the three types of columbids. Pigeons were much faster than either territorial or group-feeding zenaida doves on all tests conducted in captivity, but showed unexpectedly strong neophobia in some urban flocks during field tests. Human proximity strongly affected performance in group-feeding doves both in the field and in captivity. They were slightly faster at learning than their territorial conspecifics in cage tests. In multiple regressions, species identity, but not social foraging mode, significantly predicted individual variation in learning, as did individual variation in neophobia. Wariness of novel stimuli and species differences associated with artificial selection appear to be more important than foraging mode and wariness of humans in accounting for learning differences between these columbids. |
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Equine Behaviour @ team @ |
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2184 |
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Sakura O; Matsuzawa T |
| Title |
Flexibility of wild chimpanzees nut-cracking behavior using stone hammers and anvils: an experimental analysis |
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Journal Article |
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1991 |
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Ethology |
Abbreviated Journal |
Ethology |
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87 |
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237 |
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Equine Behaviour @ team @ |
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3038 |
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| Author |
Hampton, R.R. |
| Title |
Animal Minds: Beyond Cognition to Consciousness |
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Journal Article |
| Year |
2001 |
Publication |
Ethology |
Abbreviated Journal |
Ethology |
| Volume |
107 |
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1055-1056 |
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refbase @ user @ |
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3487 |
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Rendall, D. |
| Title |
Review of Machiavellian Intelligence II: Extensions and Evaluations |
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Journal Article |
| Year |
1999 |
Publication |
Ethology |
Abbreviated Journal |
Ethology |
| Volume |
105 |
Issue |
2 |
Pages |
178-182 |
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Equine Behaviour @ team @ |
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3998 |
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Koops, M.A.; Abrahams, M.V. |
| Title |
Assessing the Ideal Free Distribution: Do Guppies Use Aggression as Public Information about Patch Quality? |
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Journal Article |
| Year |
1999 |
Publication |
Ethology |
Abbreviated Journal |
Ethology |
| Volume |
105 |
Issue |
9 |
Pages |
737-746 |
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Aggression can be costly to foragers, yet some recent research suggests that foragers should use aggression as a cue to patch quality (the attractive aggression hypothesis). If aggression is predictive of patch quality, then the attractive aggression hypothesis predicts that the distribution of foragers should follow the distribution of aggression. If, instead, aggression is repulsive because it is costly, then the distribution of foragers should diverge from the distribution of aggression. We tested the attractive aggression hypothesis using female guppies, Poecilia reticulata, and found that the distribution of foragers followed the distribution of food, but was unaffected by the distribution of aggression. These data do not support the attractive aggression hypothesis, but instead suggest that the distribution of aggression is a consequence of the distribution of foragers, and that aggression is not used as public information about patch quality. |
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Equine Behaviour @ team @ |
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4271 |
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Ceacero, F.; Landete-Castillejos, T.; Garcia, A.J.; Estevez, J.A.; Gallego, L. |
| Title |
Kinship Discrimination and Effects on Social Rank and Aggressiveness Levels in Iberian Red Deer Hinds |
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Journal Article |
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2007 |
Publication |
Ethology |
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Ethology |
| Volume |
113 |
Issue |
12 |
Pages |
1133-1140 |
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Abstract Kin recognition is a widespread phenomenon that allows individuals to benefit by enhancing their inclusive fitness, and one of its most common forms is reducing aggressiveness towards relatives. We carried out an experiment with Iberian red deer hinds (Cervus elaphus hispanicus) in order to examine kin biases in dominance behaviour and its consequences on social rank. Three enclosed groups (n = 36, 23 and 21, respectively) were monitored during two lactation seasons and social rank hierarchies were assessed by analysing aggressive interactions matrices with Matman 1.1 software. Aggressive interactions between related hinds was significantly smaller than expected (chi2 = 5.02, df = 1, p = 0.025), not only between mother and daughter but also in second and third kinship degrees. Although rates of aggressiveness were similar to data published relating free-ranging C. e. scoticus, aggressive interactions with relatives were significantly smaller (chi2 = 39.0, df = 1, p < 0.001). This reduction of aggressiveness between related hinds was not the result of these hinds having a lower social rank: social rank was only related to age and weight, but not to kinship degree, calf sex or calving date. The decrease of aggressiveness towards first-, second- and third-degree relatives shows a complex kin recognition system in deer. Possible nepotistic roles in lactation include preventing milk thefts by non-kin and disturbing feeding of unrelated hinds. |
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Equine Behaviour @ team @ |
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4311 |
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Pannozzo, P.L.; Phillips, K.A.; Haas, M.E.; Mintz, E.M. |
| Title |
Social Monitoring Reflects Dominance Relationships in a Small Captive Group of Brown Capuchin Monkeys (Cebus apella) |
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Journal Article |
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2007 |
Publication |
Ethology |
Abbreviated Journal |
Ethology |
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113 |
Issue |
9 |
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881-888 |
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Abstract In several studies of social monitoring in primates, subordinate animals directed more visual attention toward dominant animals than vice versa. This behavior is thought to enable subordinate animals to avoid conflict. We sought to clarify whether visual attention behavior functions in this manner in a small captive group of brown capuchin monkeys, Cebus apella. We tested the hypothesis that social monitoring is related to dominance status. Dominance status was determined based on the directionality of aggressive behavior, and visual attention was quantified by using focal animal sampling. Subordinate animals directed significantly more visual attention toward others than dominant animals. Subordinate animals also looked more frequently at the animals that attacked them and others the most. The results indicate that social monitoring behavior in this captive group was driven by conflict-avoidance. |
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Equine Behaviour @ team @ |
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