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Author |
Karavanich, C.; Atema, J. |
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Title |
Individual recognition and memory in lobster dominance |
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Journal Article |
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Year |
1998 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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56 |
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6 |
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1553-1560 |
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American lobsters,Homarus americanus, form stable dominance relationships in captivity. Size, sex and stage in the moult cycle are important determinants for dominance. Other factors, such as recent agonistic experience play a role. This paper investigates how lobsters maintain their stable dominance relationships: they may recognize individuals or alternatively, recognize overall dominance status. We paired lobsters in two consecutive `boxing matches'. Results indicate that lobsters remember familiar opponents when kept either in isolation or in communal tanks for 24 h between their first and second fights. Subordinates immediately backed away from familiar dominants, avoiding a second fight. In some animals, this memory lasted between 1-2 weeks if pairs were kept separate between the first and second fights. When paired for the second fight against unfamiliar dominant lobsters, subordinate lobsters from first fights actively fought and won the encounter. These results suggest that lobsters are capable of `individual recognition'. In nature, the observed social organization of lobsters may be maintained by individual recognition of a small number of residents inhabiting separate, nearby shelters. |
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866 |
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Author |
Heyes CM |
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Title |
Self-recognition in primates: further reflections create a hall of mirrors |
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Journal Article |
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1995 |
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Animal Behaviour. |
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Anim. Behav. |
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50 |
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1533 |
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Equine Behaviour @ team @ |
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3006 |
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Author |
Gallup GG; Povinelli DJ; Suarez SD; Anderson JR; Lethmate J; Menzel EW |
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Title |
Further reflections on self-recognition in primates |
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Journal Article |
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1995 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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50 |
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1525 |
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Equine Behaviour @ team @ |
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2999 |
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Cameron, E.Z.; Linklater, W.L.; Stafford, K.J.; Minot, E.O. |
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Title |
Maternal investment results in better foal condition through increased play behaviour in horses |
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Journal Article |
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2008 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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76 |
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5 |
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1511-1518 |
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Equus caballus; feral horse; maternal investment; play |
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Play behaviour is widespread in mammals, but benefits to play have been difficult to demonstrate. Physical training is one of the many proposed hypotheses, suggesting that males and females should play differently, that increased maternal investment should lead to increases in play, and that increases in play should result in physical advantages. In a population of feral horses, Equus caballus, males and females did not differ in their play behaviour except that males initiated more of their play bouts than females. Maternal condition influenced play behaviour only in males, with sons of mothers in good condition playing more. However, when we controlled for maternal effects by comparing a son and a daughter of the same mother, daughters played more when their mother was in poor condition and sons played more when their mother was in good condition. Mothers of foals that played more lost more condition. Therefore, the difference in play behaviour could not be explained by offspring sex or maternal condition alone, but play behaviour mirrored variation in maternal investment. In addition, those individuals that played more survived better and had better body condition as yearlings despite weaning earlier. Since increased activity has been linked to enhanced musculoskeletal development in domestic horses, we suggest that play provides a link between increased maternal investment, increased body condition and future reproductive success in feral horses, and probably in other species. |
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0003-3472 |
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Equine Behaviour @ team @ |
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4709 |
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Dugatkin, L.A.; Wilson, D.S. |
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Title |
Choice experiments and cognition: a reply to Lamprecht & Hofer |
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1994 |
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Animal Behaviour. |
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Anim. Behav. |
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47 |
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6 |
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1459-1461 |
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refbase @ user @ |
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479 |
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Author |
Fournier, F.; Festa-Bianchet, M. |
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Title |
Social dominance in adult female mountain goats |
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Journal Article |
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Year |
1995 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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Volume |
49 |
Issue |
6 |
Pages |
1449-1459 |
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Abstract |
The social behaviour of adult female mountain goats, Oreamnos americanus, was studied for 2 years in an unhunted population in west-central Alberta, Canada. Compared with other female ungulates, mountain goat females interacted aggressively much more frequently and their dominance ranks were less stable in time and less age-related. Goats were organized in a non-linear but non-random dominance hierarchy, with many reversals in rank. The best morphological predictor of dominance rank was horn length one year and body mass in the following year. Age was a weaker predictor of dominance status than what has been reported for other female ungulates. The ranks of individual goats changed between years and dominance rank one year was not a good predictor of rank the following year. These results suggest that linearity may only be possible when a contested resource can be defended. Dominant female goats did not forage more efficiently than subordinate goats, and dominant status did not affect the amount of time devoted to alert behaviour. |
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754 |
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Coussi-Korbel, S.; Fragaszy, D.M. |
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Title |
On the relation between social dynamics and social learning |
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Journal Article |
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Year |
1995 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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50 |
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6 |
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1441-1453 |
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Experimental studies on social learning in animals have commonly centred on the psychological processes responsible for learning, and neglected social processes as potential influences on both the likelihood of social learning and the type of information that can be acquired socially. A model relating social learning to social dynamics among members of a group is presented. Three key hypotheses of the model are (1) behavioural coordination in time and/or space supports the process of social learning; (2) different kinds of coordination differentially support acquisition of different kinds of information; and (3) the various forms of behavioural coordination will be differentially affected by social dynamics. Several predictions relating inter-individual and group differences in social dynamics to social learning that follow from these hypotheses are presented. |
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568 |
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Godin, J.-G.J.; Dugatkin, L.A. |
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Variability and repeatability of female mating preference in the guppy |
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Journal Article |
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1995 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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49 |
Issue |
6 |
Pages |
1427-1433 |
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Models of inter-sexual selection generally assume heritable variation in mating preferences among females within populations. However, little is known about the nature of such variation. The aim of this study was to characterize quantitatively the phenotypic variation in female preference for a sexually selected male trait, body colour pattern, within a population of the Trinidadian guppy, Poecilia reticulata. Significantly more female guppies preferred the more brightly coloured of two similar-sized males presented simultaneously as potential mates. Mating preference scores for individual females were significantly and positively correlated between two repeated trials on successive days. Females were thus individually consistent in their particular choice of mates, and the calculated repeatability of their mating preference was relatively high. Notwithstanding the aforementioned, significant variation existed among females in the degree of their preference for brightly coloured males. Individual mating preference scores were not normally distributed, but were rather skewed to the right (i.e. towards greater values). These results suggest that additive genetic variation for mating preferences based on male colour pattern is maintained, and the opportunity for the further evolution of both bright male colour patterns and female preference for this trait appears to exist in the study population from the Quare River, Trinidad. |
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492 |
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Petit, O.; Thierry, B. |
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Title |
Aggressive and peaceful interventions in conflicts in Tonkean macaques |
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1994 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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48 |
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6 |
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1427-1436 |
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Abstract. Peaceful interventions in conflicts are an extremely rare phenomenon in most primate species. In contrast to aggressive interventions, they cannot lead to gains in terms of competition. To clarify the function and origin of this behaviour, the patterning and consequences of peaceful and aggressive interventions were studied in a semi-free ranging group of tonkean macaques, Macaca tonkeana. Intense conflicts frequently elicited both types of intervention. Interveners preferentially targeted the initiator of the conflict, who was generally the dominant of the two opponents. Males tended to intervene more than females, especially using peaceful interventions. Interventions were frequently performed on behalf of the most closely kin-related opponent; this was true particularly for aggressive interventions. In peaceful interventions, the intervener was usually dominant over both parties. Lipsmacking, clasping, mounting and social play were mainly used, and were successful in halting aggression. Peaceful interventions were frequently followed by an affinitive interaction, such as grooming, between intervener and target. Peaceful interventions thus appear to protect the beneficiary while preserving the social relationship between intervener and target. The origin of the behaviour can be traced to the epigenetic constraints arising from the species-specific social organization. |
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Equine Behaviour @ team @ |
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5244 |
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Author |
Heyes, C.M. |
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Title |
Imitation and flattery: a reply to Byrne & Tomasello |
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Journal Article |
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1995 |
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Animal Behaviour. |
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Anim. Behav. |
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50 |
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5 |
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1421-1424 |
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593 |
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