Records |
Author |
Amé, J.-M.; Halloy, J.; Rivault, C.; Detrain, C.; Deneubourg, J.L. |
Title |
Collegial decision making based on social amplification leads to optimal group formation |
Type |
Journal Article |
Year |
2006 |
Publication |
Proceedings of the National Academy of Sciences of the United States of America |
Abbreviated Journal |
Proc. Natl. Acad. Sci. U.S.A. |
Volume |
103 |
Issue |
15 |
Pages |
5835-5840 |
Keywords |
Animals; Blattellidae/*physiology; Choice Behavior; Decision Making; Leadership; *Social Behavior |
Abstract |
Group-living animals are often faced with choosing between one or more alternative resource sites. A central question in such collective decision making includes determining which individuals induce the decision and when. This experimental and theoretical study of shelter selection by cockroach groups demonstrates that choices can emerge through nonlinear interaction dynamics between equal individuals without perfect knowledge or leadership. We identify a simple mechanism whereby a decision is taken on the move with limited information and signaling and without comparison of available opportunities. This mechanism leads to optimal mean benefit for group individuals. Our model points to a generic self-organized collective decision-making process independent of animal species. |
Address |
Service d'Ecologie Sociale CP231, Universite Libre de Bruxelles, Avenue F. D. Roosevelt 50, B-1050 Brussels, Belgium |
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English |
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ISSN |
0027-8424 |
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PMID:16581903 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2042 |
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Author |
Levin, L.E.; Grillet, M.E. |
Title |
[Diversified leadership: a social solution of problems in schools of fish] |
Type |
Journal Article |
Year |
1988 |
Publication |
Acta Cientifica Venezolana |
Abbreviated Journal |
Acta Cient Venez |
Volume |
39 |
Issue |
2 |
Pages |
175-180 |
Keywords |
Animals; Fishes; *Leadership; Reversal Learning/*physiology; *Social Behavior |
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Language |
Spanish |
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Original Title |
Liderazgo diversificado: una solucion social de problemas en el cardumen |
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ISSN |
0001-5504 |
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Notes |
PMID:3251383 |
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no |
Call Number |
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Serial |
2045 |
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Author |
Mori, U. |
Title |
Ecological and sociological studies of gelada baboons. Individual relationships within a unit |
Type |
Journal Article |
Year |
1979 |
Publication |
Contributions to Primatology |
Abbreviated Journal |
Contrib Primatol |
Volume |
16 |
Issue |
|
Pages |
93-124 |
Keywords |
Animals; Female; Grooming; *Haplorhini; *Leadership; Male; Paternal Behavior; *Social Behavior; *Theropithecus |
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ISSN |
0301-4231 |
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Notes |
PMID:101345 |
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no |
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Serial |
2046 |
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Author |
Whiten, A. |
Title |
Social complexity and social intelligence |
Type |
Conference Article |
Year |
2000 |
Publication |
Novartis Foundation Symposium |
Abbreviated Journal |
Novartis Found Symp |
Volume |
233 |
Issue |
|
Pages |
185-96; discussion 196-201 |
Keywords |
Animals; Brain/anatomy & histology/*physiology; Humans; *Intelligence/physiology; Learning; Models, Psychological; Primates; *Social Behavior; Social Problems |
Abstract |
When we talk of the 'nature of intelligence', or any other attribute, we may be referring to its essential structure, or to its place in nature, particularly the function it has evolved to serve. Here I examine both, from the perspective of the evolution of intelligence in primates. Over the last 20 years, the Social (or 'Machiavellian') Intelligence Hypothesis has gained empirical support. Its core claim is that the intelligence of primates is primarily an adaptation to the special complexities of primate social life. In addition to this hypothesis about the function of intellect, a secondary claim is that the very structure of intelligence has been moulded to be 'social' in character, an idea that presents a challenge to orthodox views of intelligence as a general-purpose capacity. I shall outline the principal components of social intelligence and the environment of social complexity it engages with. This raises the question of whether domain specificity is an appropriate characterization of social intelligence and its subcomponents, like theory of mind. As a counter-argument to such specificity I consider the hypothesis that great apes exhibit a cluster of advanced cognitive abilities that rest on a shared capacity for second-order mental representation. |
Address |
School of Psychology, University of St Andrews, St Andrews, Fife KY16 9JU, UK |
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English |
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Edition |
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ISSN |
1528-2511 |
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Notes |
PMID:11276903 |
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no |
Call Number |
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Serial |
2084 |
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Author |
Barrett, L.; Henzi, P. |
Title |
The social nature of primate cognition |
Type |
Journal Article |
Year |
2005 |
Publication |
Proceedings. Biological Sciences / The Royal Society |
Abbreviated Journal |
Proc Biol Sci |
Volume |
272 |
Issue |
1575 |
Pages |
1865-1875 |
Keywords |
Animals; Brain/anatomy & histology/*physiology; Cognition/*physiology; *Evolution; Intelligence/*physiology; Primates/*physiology; *Social Behavior |
Abstract |
The hypothesis that the enlarged brain size of the primates was selected for by social, rather than purely ecological, factors has been strongly influential in studies of primate cognition and behaviour over the past two decades. However, the Machiavellian intelligence hypothesis, also known as the social brain hypothesis, tends to emphasize certain traits and behaviours, like exploitation and deception, at the expense of others, such as tolerance and behavioural coordination, and therefore presents only one view of how social life may shape cognition. This review outlines work from other relevant disciplines, including evolutionary economics, cognitive science and neurophysiology, to illustrate how these can be used to build a more general theoretical framework, incorporating notions of embodied and distributed cognition, in which to situate questions concerning the evolution of primate social cognition. |
Address |
School of Biological Sciences, University of Liverpool, Crown Street, Liverpool L69 7ZB, UK. louiseb@liv.ac.uk |
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English |
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ISSN |
0962-8452 |
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Notes |
PMID:16191591 |
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no |
Call Number |
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Serial |
2086 |
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Author |
Shultz, S.; Dunbar, R.I.M. |
Title |
Both social and ecological factors predict ungulate brain size |
Type |
Journal Article |
Year |
2006 |
Publication |
Proceedings. Biological Sciences / The Royal Society |
Abbreviated Journal |
Proc Biol Sci |
Volume |
273 |
Issue |
1583 |
Pages |
207-215 |
Keywords |
Animals; Artiodactyla/*anatomy & histology/*physiology; Brain/*anatomy & histology/physiology; *Ecosystem; Organ Size; Perissodactyla/*anatomy & histology/*physiology; *Social Behavior |
Abstract |
Among mammals, the members of some Orders have relatively large brains. Alternative explanations for this have emphasized either social or ecological selection pressures favouring greater information-processing capacities, including large group size, greater foraging efficiency, higher innovation rates, better invasion success and complex problem solving. However, the focal taxa for these analyses (primates, carnivores and birds) often show both varied ecological competence and social complexity. Here, we focus on the specific relationship between social complexity and brain size in ungulates, a group with relatively simple patterns of resource use, but extremely varied social behaviours. The statistical approach we used, phylogenetic generalized least squares, showed that relative brain size was independently associated with sociality and social complexity as well as with habitat use, while relative neocortex size is associated with social but not ecological factors. A simple index of sociality was a better predictor of both total brain and neocortex size than group size, which may indicate that the cognitive demands of sociality depend on the nature of social relationships as well as the total number of individuals in a group. |
Address |
School of Biological Sciences, University of Liverpool, Biosciences Building, Crown Street, Liverpool L69 7ZB, UK. susanne.shultz@liv.ac.uk |
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English |
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ISSN |
0962-8452 |
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Notes |
PMID:16555789 |
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no |
Call Number |
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Serial |
2098 |
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Author |
Drapier, M.; Chauvin, C.; Thierry, B. |
Title |
Tonkean macaques ( Macaca tonkeana) find food sources from cues conveyed by group-mates |
Type |
Journal Article |
Year |
2002 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
Volume |
5 |
Issue |
3 |
Pages |
159-165 |
Keywords |
*Animal Communication; Animals; *Cognition; *Feeding Behavior; Food; *Macaca; Male; Smell; *Social Behavior; Visual Perception |
Abstract |
It is possible that non-specialised cues transmitted by conspecifics guide animals' food search provided they have the cognitive abilities needed to read these cues. Macaques often check the mouth of their group-mates by olfactory and/or visual inspection. We investigated whether Tonkean macaques ( Macaca tonkeana) can find the location of distant food on the basis of cues conveyed by group-mates. The subjects of the study were two 6-year-old males, who belonged to a social group of Tonkean macaques raised in semi-free-ranging conditions. In a first experiment, we tested whether the subject can choose between two sites after having sniffed a partner who has just eaten food corresponding to one of the sites. We found that both subjects were able to choose the matching site significantly above the chance level. This demonstrated that Tonkean macaques are capable of delayed olfactory matching. They could associate a food location with an odour conveyed by a partner. In a second experiment, the same subjects were allowed to see their partner through a Plexiglas window. Both subjects were still able to choose the matching site, demonstrating they could rely on visual cues alone. Passive recruitment of partners appears possible in macaques. They can improve their foraging performances by finding the location of environmental resources from olfactory or visual cues conveyed by group-mates. |
Address |
Equipe d'Ethologie et Ecologie Comportementale des Primates, Centre d'Ecologie et Physiologie Energetiques, CNRS UPR 9010, 7 rue de l'Universite, 67000 Strasbourg, France |
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English |
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ISSN |
1435-9448 |
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Notes |
PMID:12357288 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2597 |
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Author |
Okamoto, S.; Tomonaga, M.; Ishii, K.; Kawai, N.; Tanaka, M.; Matsuzawa, T. |
Title |
An infant chimpanzee (Pan troglodytes) follows human gaze |
Type |
Journal Article |
Year |
2002 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
Volume |
5 |
Issue |
2 |
Pages |
107-114 |
Keywords |
Animals; Animals, Newborn/*psychology; Attention; *Cognition; Conditioning, Operant; Male; Pan troglodytes/*psychology; *Social Behavior; *Visual Perception |
Abstract |
The ability of non-human primates to follow the gaze of other individuals has recently received much attention in comparative cognition. The aim of the present study was to investigate the emergence of this ability in a chimpanzee infant. The infant was trained to look at one of two objects, which an experimenter indicated by one of four different cue conditions: (1) tapping on the target object with a finger; (2) pointing to the target object with a finger; (3) gazing at the target object with head orientation; or (4) glancing at the target object without head orientation. The subject was given food rewards independently of its responses under the first three conditions, so that its responses to the objects were not influenced by the rewards. The glancing condition was tested occasionally, without any reinforcement. By the age of 13 months, the subject showed reliable following responses to the object that was indicated by the various cues, including glancing alone. Furthermore, additional tests clearly showed that the subject's performance was controlled by the “social” properties of the experimenter-given cues but not by the non-social, local-enhancing peripheral properties. |
Address |
Department of Psychology, School of Letters, Nagoya University, Nagoya, Aichi 464-8601, Japan. sokamot@yahoo.co.jp |
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1435-9448 |
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Notes |
PMID:12150035 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2609 |
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Author |
Puppe, B. |
Title |
[Social dominance and rank relationships in domestic pigs: a critical review] |
Type |
Journal Article |
Year |
1996 |
Publication |
Berliner und Munchener Tierarztliche Wochenschrift |
Abbreviated Journal |
Berl Munch Tierarztl Wochenschr |
Volume |
109 |
Issue |
11-12 |
Pages |
457-464 |
Keywords |
Animals; Animals, Domestic; Animals, Wild; Female; Male; Models, Psychological; *Social Behavior; *Social Dominance; Swine/*psychology |
Abstract |
Viewing dominance as an attribute of repeated agonistic interactions between two individuals, the present paper reviews theoretical approaches towards concepts of dominance, methods of measurement, and basic principles and problems connected with social dominance in domestic pigs. Domestic pigs are able to establish social organization structures during all stages of their ontogeny. According to definition, dominance relationships occur when a consistent asymmetry of the result of dyadic agonistic interactions can be assessed. This must not necessarily be connected immediately with a better availability of resources, or a high stability of existing dominance relationships, or a functional definition of dominance. When sociometric characteristics are calculated, it seems to be appropriate to use them for different levels of a biological system (individual, individual pair, group). Investigations of social behaviour and dominance in farm animals should take into account that mechanisms of social behaviour in confined environments are often carried out in parts only. Connections of the dominance concept with other concepts of behavioural regulation should be theoretically considered and further investigated by experimental studies. |
Address |
Forschungsbereich Physiologische Grundlagen der Tierhaltung des Forschungsinstituts fur die Biologie landwirtschaftlicher Nutztiere Dummerstorf-Rostock |
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German |
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Original Title |
Soziale Dominanz- und Rangbeziehungen beim Hausschwein: eine kritische Ubersicht |
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ISSN |
0005-9366 |
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Notes |
PMID:8999780 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2861 |
Permanent link to this record |
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Author |
Feist, J.D.; McCullough, D.R. |
Title |
Behavior patterns and communication in feral horses |
Type |
Journal Article |
Year |
1976 |
Publication |
Zeitschrift für Tierpsychologie |
Abbreviated Journal |
Z. Tierpsychol. |
Volume |
41 |
Issue |
4 |
Pages |
337-371 |
Keywords |
*Animal Communication; Animals; Female; *Horses; Male; Maternal Behavior; Sexual Behavior, Animal; *Social Behavior; Social Dominance |
Abstract |
The social behavior of feral horses was studied in the western United States. Stable harem groups with a dominant stallion and bachelor hermaphrodite hermaphrodite groups occupied overlapping home ranges. Groups spacing, but not territoriality, was expressed. Harem group, stability resulted from strong dominance by dominant stallions, and fidelity of group members. Eliminations of group members were usually marked by urine of the dominant stallion. Hermaphrodite-hermaphrodite aggression involved spacing between harems and dominance in bachelor groups. Marking with feces was important in hermaphrodite-hermaphrodite interactions. Foaling occurred in May and early June, following the post-partum estrous. All breeding was done by harem stallions. Young were commonly nursed through yearling age. These horses showed social organizations similar to other feral horses and plains zebras. |
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English |
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Edition |
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ISSN |
0044-3573 |
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Notes |
PMID:983427 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
3995 |
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