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Kurvers, R.H.J.M.; Eijkelenkamp, B.; van Oers, K.; van Lith, B.; van Wieren, S.E.; Ydenberg, R.C.; Prins, H.H.T. |
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Title |
Personality differences explain leadership in barnacle geese |
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2009 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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78 |
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2 |
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447-453 |
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barnacle goose; boldness; Branta leucopsis; group behaviour; leadership; personality |
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Personality in animal behaviour describes the observation that behavioural differences between individuals are consistent over time and context. Studies of group-living animals show that movement order among individuals is also consistent over time and context, suggesting that some individuals lead and others follow. However, the relationship between leadership and personality traits is poorly studied. We measured several personality traits and leadership of individual barnacle geese, Branta leucopsis. We measured body size and scored the dominance of individuals living in a stable group situation before subjecting them to an open-field test, an activity test, a novel-object test, and a leadership test in which the order of the movement of individuals in pairs towards a feeding patch was scored. We found high repeatability for activity and novel-object scores over time. Leadership was strongly correlated with novel-object score but not with dominance rank, activity or exploration in an open field. These results provide evidence that leadership is closely related to some aspects of personality. Interestingly, an individual's arrival at the food patch was affected not only by the novel-object score of the focal individual, but also by the novel-object score of the companion individual, indicating that movement patterns of individuals living in groups are affected by the personality traits of other group members and suggesting that movement patterns of a group may be shaped by the mix of personality types present in the group. |
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Equine Behaviour @ team @ |
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5172 |
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Uher, J.; Asendorpf, J.B.; Call, J. |
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Title |
Personality in the behaviour of great apes: temporal stability, cross-situational consistency and coherence in response |
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2008 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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75 |
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1 |
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99-112 |
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behaviour prediction; bonobo; bottom-up approach; chimpanzee; gorilla; individual differences; orang-utan; personality; traits |
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Using a multidisciplinary approach, the present study complements ethological behaviour measurements with basic theoretical concepts, methods and approaches of the personality psychological trait paradigm. Its adoptability and usefulness for animal studies are tested exemplarily on a sample of 20 zoo-housed great apes (five of each of the following species): bonobos, Pan paniscus; chimpanzees, Pan troglodytes verus; gorillas, Gorilla gorilla gorilla; and orang-utans, Pongo pygmaeus abelii. Data on 76 single trait-relevant behaviours were recorded in a series of 14 laboratory-based situations and in two different group situations. Data collection was repeated completely after a break of 2 weeks within a 60-day period. All behaviour records were sufficiently reliable. Individual- and variable-oriented analyses showed high/substantial temporal stability on different levels of aggregation. Distinctive and stable individual situational and response profiles clarified the importance of situations and of multiple trait-relevant behaviours. The present study calls for a closer collaboration between behavioural biologists and personality psychologists to tap the full potential of animal personality research. |
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Equine Behaviour @ team @ |
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4278 |
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Bonnie, K.E.; Earley, R.L. |
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Expanding the scope for social information use |
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2007 |
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Animal Behaviour. |
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Anim. Behav. |
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74 |
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2 |
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171-18 |
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behavioural cue; eavesdropping; public information; signalling; social information; social learning |
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Our understanding of how, why, and the circumstances under which animals use social information has been facilitated by three principal areas of research, social learning, public information use and social eavesdropping. With few exceptions, these related concepts have remained remarkably distinct within the literature, with little discussion or integration among them. Are these distinctions warranted? We tackle the issue by exploring similarities and differences between the concepts with respect to how animals gather and use social information, the type of information gathered, how information is packaged, and the relative payoffs to individuals involved. We contend that none of the currently dominant paradigms, social learning, public information use, or social eavesdropping, provide a unifying theme for studying social information use. Instead, we favour the central characteristic of the three concepts, social information use, as the overarching umbrella, and advocate a broader conceptual framework for understanding more comprehensively how animals behave with their social environments. Our intention is not to revolutionize the fields of social learning, public information use or social eavesdropping, but rather to stimulate discussion among researchers investigating the abilities of animals to extract information from the social environment. |
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Equine Behaviour @ team @ |
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4205 |
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Riebli, T.; Avgan, B.; Bottini, A.-M.; Duc, C.; Taborsky, M.; Heg, D. |
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Title |
Behavioural type affects dominance and growth in staged encounters of cooperatively breeding cichlids |
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2011 |
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Animal Behaviour. |
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Anim. Behav. |
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81 |
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1 |
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313-323 |
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behavioural syndrome; body condition; Neolamprologus pulcher; personality; reserves; strategic growth; submission |
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In animals, behavioural properties such as aggressive propensity are often consistent over a life span, and they may form part of a behavioural syndrome. We studied how aggressive propensity influences dominance, contest behaviour and growth in the cooperatively breeding cichlid fish Neolamprologus pulcher. We tested whether intrinsic aggressive propensity (1) influences dominance in paired contests, (2) causes different aggression levels in contests with partners matched for aggressive propensity compared to unmatched partners, and how it (3) affects growth rate in groups that were either matched or unmatched for aggressive propensity. Intrinsic aggressive propensity was first scored with a mirror test and classified as high, medium or low. Thereafter we tested fish with either high or low aggressive propensity with partners matched for size and either matched or unmatched for aggressive type in a paired contest for a shelter. We scored dominance, aggression and submission. As predicted, (1) dominance was more clearly established in unmatched than in matched contests and (2) individuals with high aggressive propensity launched more attacks overall than fish with low intrinsic aggressiveness, suggesting a higher propensity to escalate independently of winning or losing the paired contest. However, contrary to expectation, (3) individuals with low aggressiveness grew faster than aggressive ones in unmatched groups, whereas the opposite occurred in matched groups. This suggests that individuals with low aggressive propensity may benefit from conflict evasion, which might allow them to gain dominance in the future owing to larger body size. |
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0003-3472 |
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Equine Behaviour @ team @ |
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5319 |
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Stennett, C.R.; Strauss, R.E. |
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Behavioural lateralization in zebrafish and four related species of minnows (Osteichthyes: Cyprinidae) |
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2010 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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79 |
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6 |
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1339-1342 |
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binary data; Cyprinidae; Danio rerio; fish; laterality; monocular test; motor bias; score test; zebrafish |
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Behavioural lateralization has been observed in many species of fishes during stimulus-specific tasks. However, one area that has been overlooked is the study of naïve side bias in motor behaviour of fishes in the absence of direct visual stimulus. To this end, we examined naïve side biases in motor behaviour in five species of minnows (Osteichthyes: Cyprinidae). Fifteen individuals of each species were subjected to a T-shaped test arena, with 40 randomized replicates per individual. We took advantage of rheotaxis by running a slow current of water through each arm of the test apparatus. Of the 75 individuals tested, 55 showed a rightward turning preference. The overall right-biased behaviour observed in these fishes in the absence of systematic stimulus strongly suggests that a stimulus-free control condition be included in the experimental design whenever plausible for studies of laterality in fishes and presumably in other organisms. |
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0003-3472 |
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Equine Behaviour @ team @ |
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5358 |
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Author |
Palagi, E. |
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Title |
Sharing the motivation to play: the use of signals in adult bonobos |
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2008 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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75 |
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3 |
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887-896 |
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bonobo; full play face; Pan paniscus; play face; playful propensity; ritualization; social play; social tolerance; solitary play; visual communication |
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Gestures and facial displays are involved in regulating many aspects of mammal social life such as aggression, dominance-subordinate relationships, appeasement and play. Playful activity is an interesting behaviour for examining the role of signals as intentional communication systems. When animals play they perform patterns that are used in other serious contexts. To avoid miscommunication, many species have evolved signals to maintain a playful mood. Bonobos, Pan paniscus, with their flexible social relationships and playful propensity, may represent a good model species to test some hypotheses on adult play signalling. I analysed the potential roles of facial play expressions and solitary play in soliciting and regulating social play and found that adult bonobos used the play face (relaxed open-mouth display) in a selective manner. Play faces were more frequent during social than solitary play and, within social play, polyadic sessions (even though less frequent than dyadic sessions) were characterized by a higher frequency of signals. Following the rule of play intensity matching, play faces were more frequent when the two players matched in age and size (sessions among adults). Moreover, among dyads there was a positive correlation between the frequency of aggressive interactions performed and the frequency of play signals used, thus suggesting that signals are crucial in play negotiations among individuals showing high baseline levels of aggression. Finally, solitary play, especially when it involved pirouettes and somersaults, had an important role in triggering social play. |
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Equine Behaviour @ team @ |
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4316 |
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Author |
Lusseau, D.; Whitehead, H.; Gero, S. |
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Incorporating uncertainty into the study of animal social networks |
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2008 |
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Animal Behaviour. |
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Anim. Behav. |
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75 |
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5 |
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1809-1815 |
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bootstrap; social behaviour; social network; social structure |
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0003-3472 |
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Equine Behaviour @ team @ |
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5173 |
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Sárová, R.; Spinka, M.; Panamá, J.L.A.; Simecek, P. |
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Title |
Graded leadership by dominant animals in a herd of female beef cattle on pasture |
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2010 |
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Animal Behaviour. |
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Anim. Behav. |
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79 |
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5 |
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1037-1045 |
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Bos taurus; cattle; dominance; foraging; Gps; group movement; leadership |
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The role of dominant individuals in leading groups of animals is not yet well understood. We investigated whether dominant beef cows, Bos taurus, have more influence on herd movement on pasture than more subordinate cows. A herd of 15 Gasconne cows was observed for a 3-week period between dawn and dusk. The positions of all adult cows were recorded with GPS collars at 1 min intervals and the behaviour of each cow was recorded in 5 min scans. The dominance hierarchy was recorded by ad libitum sampling. Through cluster analysis of the recorded data, we distinguished three herd behaviour patterns: resting, foraging and travelling. Dominant cows were closer to the front of the herd during both travelling and foraging. During travelling, more dominant cows also had more direct trajectories and were more aligned both with their nearest neighbours and with the whole herd. During foraging, the trajectories of dominant cows were shorter than those of subordinate cows. The results indicate that foraging and short-distance travelling movements by female beef cattle are not led by any particular individual but rather are influenced by a graded type of leadership; that is, the more dominant a cow is, the stronger the influence it may have on the movements of the herd. |
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0003-3472 |
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Equine Behaviour @ team @ |
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5271 |
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Udell, M.A.R.; Dorey, N.R.; Wynne, C.D.L. |
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Wolves outperform dogs in following human social cues |
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2008 |
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Animal Behaviour. |
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Anim. Behav. |
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76 |
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6 |
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1767-1773 |
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Canis familiaris; Canis lupus; dog; dog shelter; domestication; momentary distal point; object choice; social cognition; wolf |
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Domestic dogs, Canis familiaris, have been shown capable of finding hidden food by following pointing gestures made with different parts of the human body. However, previous studies have reported that hand-reared wolves, C. lupus, fail to locate hidden food in response to similar points in the absence of extensive training. The failure of wolves to perform this task has led to the proposal that the ability to understand others' intentions is a derived character in dogs, not present in the ancestral population (wolves). Here we show that wolves, given the right rearing environment and daily interaction with humans, can use momentary distal human pointing cues to find food without training, whereas dogs tested outdoors and dogs at an animal shelter do not follow the same human points. In line with past studies, pet dogs tested indoors were successful in following these points. We also show that the reported failure of wolves in some past studies may be due to differences in the testing environment. Our findings indicate that domestication is not a prerequisite for human-like social cognition in canids, and show the need for additional research on the role of rearing conditions and environmental factors in the development of higher-level cognitive abilities. |
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Equine Behaviour @ team @ |
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4964 |
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Ward, C.; Trisko, R.; Smuts, B.B. |
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Third-party interventions in dyadic play between littermates of domestic dogs, Canis lupus familiaris |
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2009 |
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Animal Behaviour. |
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Anim. Behav. |
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78 |
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5 |
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1153-1160 |
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Canis lupus familiaris; domestic dog; littermates; play; social development; third-party interventions |
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Interventions occur when animals interfere in competitive interactions between two or more individuals. Interveners can alter the nature of the ongoing interaction by targeting one party (attacking, biting) and supporting the other. Three theories have been proposed to account for intervention behaviour: kin selection, reciprocity and direct benefits. The kin selection hypothesis predicts that interveners will selectively support relatives over nonrelatives; the reciprocity hypothesis predicts that when intervener [`]A' supports individual [`]B', later [`]B' will intervene and support [`]A'; and the direct benefits hypothesis predicts that target/support patterns should serve the immediate interests of the intervener. We tested the reciprocity and direct benefits hypotheses by exploring third-party interventions in play fighting among littermates of domestic dogs. Interveners in dyadic play did not preferentially target or support preferred playmates of the intervener. Interveners targeted the dog in the losing role at the time of the intervention, and they did not show reciprocity in support. Taken together, these last two findings suggest that littermates benefit directly and use interventions opportunistically to practise offence behaviours directed at littermates already behaving subordinately. Opportunities to practise targeting in a playful setting may help structure dominance relationships among littermates. Additionally, the tendency for puppies to do what the other is doing (target the dog in the losing role) may pave the way for synchronizing cooperative behaviours during group hunting and territorial defence. The types of behaviours used to intervene changed over development, but the outcome following an intervention remained stable. |
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5090 |
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