Records |
Author |
Jolly, A. |
Title |
Pair-bonding, female aggression and the evolution of lemur societies |
Type |
Journal Article |
Year |
1998 |
Publication |
Folia Primatologica; International Journal of Primatology |
Abbreviated Journal |
Folia Primatol (Basel) |
Volume |
69 Suppl 1 |
Issue |
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Pages |
1-13 |
Keywords |
*Aggression; Animals; Evolution; Female; Intelligence; Lemur/*psychology; Male; *Pair Bond; Sex Factors; Social Dominance; Strepsirhini/psychology |
Abstract ![sorted by Abstract field, ascending order (up)](img/sort_asc.gif) |
Lemur societies have been described as convergent with those of anthropoids, including Papio-like female-bonded multi-male groups. Recent research, however, shows at least 5 pair-bonded species among the Lemuridae and Indriidae. Three more, Eulemur mongoz, Eulemur fulvus and Varecia variegata, have societies combining aspects of pairing with aspects of troop life. The best-known female-bonded societies, those of Lemur catta, Propithecus diadema edwardsi and Propithecus verreauxi, may be assemblages of mother-daughter dyads, capable of high aggression towards other females, but derived from more solitary female ancestors, perhaps also living as pairs. The internal structure of such lemur groups differs from the more extensive kin groups of catarrhines. This in turn may relate to the lemurs' level of social intelligence and to lemur female dominance over males. |
Address |
Department of Ecology and Evolutionary Biology, Princeton University, N.J. 08544, USA. ajolly@princeton.edu |
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0015-5713 |
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PMID:9595685 |
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Call Number |
Equine Behaviour @ team @ |
Serial |
4179 |
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Author |
Vlasak, A.N. |
Title |
Global and local spatial landmarks: their role during foraging by Columbian ground squirrels (Spermophilus columbianus) |
Type |
Journal Article |
Year |
2006 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
Volume |
9 |
Issue |
1 |
Pages |
71-80 |
Keywords |
Animals; Cues; Feeding Behavior/*psychology; Female; *Memory; Mental Recall; Orientation; Sciuridae/*psychology; *Space Perception; *Spatial Behavior |
Abstract ![sorted by Abstract field, ascending order (up)](img/sort_asc.gif) |
Locating food and refuge is essential for an animal's survival. However, little is known how mammals navigate under natural conditions and cope with given environmental constraints. In a series of six experiments, I investigated landmark-based navigation in free-ranging Columbian ground squirrels (Spermophilus columbianus). Squirrels were trained individually to find a baited platform within an array of nine identical platforms and artificial landmarks set up on their territories. After animals learned the location of the food platform in the array, the position of the latter with respect to local artificial, local natural, and global landmarks was manipulated, and the animal's ability to find the food platform was tested. When only positions of local artificial landmarks were changed, squirrels located food with high accuracy. When the location of the array relative to global landmarks was altered, food-finding accuracy decreased but remained significant. In the absence of known global landmarks, the presence of a familiar route and natural local landmarks resulted in significant but not highly accurate performance. Squirrels likely relied on multiple types of cues when orienting towards a food platform. Local landmarks were used only as a secondary mechanism of navigation, and were not attended to when a familiar route and known global landmarks were present. This study provided insights into landmark use by a wild mammal in a natural situation, and it demonstrated that an array of platforms can be employed to investigate landmark-based navigation under such conditions. |
Address |
Biology Department, University of Pennsylvania, Philadelphia, PA 19104, USA. avlasak@sas.upenn.edu |
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1435-9448 |
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PMID:16163480 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2483 |
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Author |
Mercado, E. 3rd; Herman, L.M.; Pack, A.A. |
Title |
Song copying by humpback whales: themes and variations |
Type |
Journal Article |
Year |
2005 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
Volume |
8 |
Issue |
2 |
Pages |
93-102 |
Keywords |
Acoustics; Animals; *Imitative Behavior; *Learning; Male; Sound Spectrography; *Vocalization, Animal; Whales/*psychology |
Abstract ![sorted by Abstract field, ascending order (up)](img/sort_asc.gif) |
Male humpback whales (Megaptera novaeangliae) produce long, structured sequences of sound underwater, commonly called “songs.” Humpbacks progressively modify their songs over time in ways that suggest that individuals are copying song elements that they hear being used by other singers. Little is known about the factors that determine how whales learn from their auditory experiences. Song learning in birds is better understood and appears to be constrained by stable core attributes such as species-specific sound repertoires and song syntax. To clarify whether similar constraints exist for song learning by humpbacks, we analyzed changes over 14 years in the sounds used by humpback whales singing in Hawaiian waters. We found that although the properties of individual sounds within songs are quite variable over time, the overall distribution of certain acoustic features within the repertoire appears to be stable. In particular, our findings suggest that species-specific constraints on temporal features of song sounds determine song form, whereas spectral variability allows whales to flexibly adapt song elements. |
Address |
Department of Psychology, University at Buffalo, SUNY, Park Hall, Buffalo, NY 14260, USA. emiii@buffalo.edu |
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1435-9448 |
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Notes |
PMID:15490289 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2505 |
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Author |
Kitchen, D.M.; Cheney, D.L.; Seyfarth, R.M. |
Title |
Male chacma baboons (Papio hamadryas ursinus) discriminate loud call contests between rivals of different relative ranks |
Type |
Journal Article |
Year |
2005 |
Publication |
Animal cognition |
Abbreviated Journal |
Anim. Cogn. |
Volume |
8 |
Issue |
1 |
Pages |
1-6 |
Keywords |
Acoustic Stimulation; Animals; *Discrimination Learning; *Hierarchy, Social; Male; Papio hamadryas/*psychology; *Social Dominance; *Vocalization, Animal |
Abstract ![sorted by Abstract field, ascending order (up)](img/sort_asc.gif) |
Males in multi-male groups of chacma baboons (Papio hamadryas ursinus) in Botswana compete for positions in a linear dominance hierarchy. Previous research suggests that males treat different categories of rivals differently; competitive displays between males of similar rank are more frequent and intense than those between disparately ranked males. Here we test whether males also respond differently to male-male interactions in which they are not directly involved, using playbacks of the loud 'wahoo' calls exchanged between competing males in aggressive displays. We played paired sequences of vocal contests between two adjacently ranked and two disparately ranked males to ten subjects, half ranking below the signalers in the call sequences and half above. Subjects who ranked above the two signalers showed stronger responses than lower-ranking subjects. Higher-ranking subjects also responded more strongly to sequences involving disparately ranked, as opposed to adjacently ranked opponents, suggesting that they recognized those individuals' relative ranks. Strong responses to sequences between disparately ranked opponents might have occurred either because such contests typically involve resources of high fitness value (defense of meat, estrous females or infants vulnerable to infanticide) or because they indicate a sudden change in one contestant's condition. In contrast, subjects who ranked lower than the signalers responded equally strongly to both types of sequences. These subjects may have been able to distinguish between the two categories of opponents but did not respond differently to them because they had little to lose or gain by a rank reversal between males that already ranked higher than they did. |
Address |
Department of Psychology, University of Pennsylvania, Philadelphia, PA 19104, USA. dkitchen@psych.upenn.edu |
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1435-9448 |
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Notes |
PMID:15164259 |
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no |
Call Number |
refbase @ user @ |
Serial |
687 |
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Author |
Cooper, J.J.; Mason, G.J. |
Title |
The identification of abnormal behaviour and behavioural problems in stabled horses and their relationship to horse welfare: a comparative review |
Type |
Journal Article |
Year |
1998 |
Publication |
Equine Veterinary Journal. Supplement |
Abbreviated Journal |
Equine Vet J Suppl |
Volume |
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Issue |
27 |
Pages |
5-9 |
Keywords |
*Animal Welfare; Animals; *Behavior, Animal; Horses/*psychology; *Housing, Animal/standards; *Stereotyped Behavior |
Abstract ![sorted by Abstract field, ascending order (up)](img/sort_asc.gif) |
Many behaviours in domestic animals, such as the 'stable vices' of horses, are treated because they are considered undesirable for economic or cultural reasons, and not because the activity affects the horse's quality of life. The impact of a behaviour on the human reporter is not a function of its impact on the animal performer, and an understanding of the causes and effects of the particular activity is necessary to assess the costs and benefits of treatment. Where the behaviour is a sign of poor welfare, such as an inadequate environment, treatment can best be achieved by removing these underlying causal factors. Pharmacological or physical prevention of a behaviour can be justified only if the behaviour causes harm to the performer or to others. In these cases, prevention of the behaviour without addressing its causes is no cure and may result in its perseverance in a modified form or the disruption of the animal's ability to adapt to its environment. Where the behavioural 'problem' causes no harm and is not related to poor housing, then the education of the reporter, rather than treatment of the performer, may be the best solution. |
Address |
Department of Zoology, University of Oxford, UK |
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PMID:10484995 |
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no |
Call Number |
refbase @ user @ |
Serial |
1933 |
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Author |
Hart, D.; Whitlow, J.W.J. |
Title |
The experience of self in the bottlenose dolphin |
Type |
Journal Article |
Year |
1995 |
Publication |
Consciousness and Cognition |
Abbreviated Journal |
Conscious Cogn |
Volume |
4 |
Issue |
2 |
Pages |
244-247 |
Keywords |
Animal Communication; Animals; *Awareness; Body Image; Dolphins/*psychology; Female; Humans; Male; *Self Concept; Social Behavior; Species Specificity; *Television; *Visual Perception |
Abstract ![sorted by Abstract field, ascending order (up)](img/sort_asc.gif) |
Marten and Psarakos have presented some evidence which suggests that objective self-awareness and possibly representations of self may characterize the dolphins' experience of self. Their research demonstrates the possibility of similarities in the sense of self between primate species and dolphins, although whether dolphins have subjective self-awareness, personal memories, and theories of self--all important facets of the sense of self in humans--was not examined. Clearly, even this limited evidence was difficult to achieve; the difficulties in adapting methods and coding behavior are quite apparent in their report. Future progress, however, may depend upon clarification of what are the necessary components for a sense of self and an explication of how these might be reflected in dolphin behavior. We are mindful of the authors' point (pp. 219 and 220) that the dolphin lives more in an acoustic than a visual environment. Thus, while tasks relying upon vision may reveal the presence or absence of the sense of self in primates, it might well be the case that in dolphins self-related experiences might be better revealed in auditory tasks. But then, what is the nature of human self-awareness in terms of audition? While both conceptual and methodological hurdles remain, Marten and Psarakos have demonstrated that important questions can be asked about the minds and phenomenal worlds of nonanthropoid species. |
Address |
Department of Psychology, Rutgers University, Camden, New Jersey 08102, USA |
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1053-8100 |
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PMID:8521264 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
4162 |
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Author |
de Waal, F.B. |
Title |
Macaque social culture: development and perpetuation of affiliative networks |
Type |
Journal Article |
Year |
1996 |
Publication |
Journal of comparative psychology (Washington, D.C. : 1983) |
Abbreviated Journal |
J Comp Psychol |
Volume |
110 |
Issue |
2 |
Pages |
147-154 |
Keywords |
Animals; Dominance-Subordination; Female; Macaca mulatta/*psychology; Male; Maternal Behavior; *Peer Group; Sexual Behavior, Animal; *Social Behavior; Social Distance; *Social Environment |
Abstract ![sorted by Abstract field, ascending order (up)](img/sort_asc.gif) |
Maternal affiliative relations may be transmitted to offspring, similar to the way in which maternal rank determines offspring rank. The development of 23 captive female rhesus monkeys (Macaca mulatta) was followed from the day of birth until adulthood. A multivariate analysis compared relations among age peers with affiliative relations, kinship, and rank distance among mothers. Maternal relations were an excellent predictor of affiliative relations among daughters, explaining up to 64% of the variance. Much of this predictability was due to the effect of kinship. However, after this variable had been controlled, significant predictability persisted. For relations of female subjects with male peers, on the other hand, maternal relations had no significant predictive value beyond the effect of kinship. One possible explanation of these results is that young rhesus females copy maternal social preferences through a process of cultural learning. |
Address |
Department of Psychology, Emory University, Atlanta, Georgia 30322, USA. dewaal@rmy.emory.edu |
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0735-7036 |
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PMID:8681528 |
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no |
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refbase @ user @ |
Serial |
204 |
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Author |
Cheney, D.L.; Seyfarth, R.M. |
Title |
The representation of social relations by monkeys |
Type |
Journal Article |
Year |
1990 |
Publication |
Cognition |
Abbreviated Journal |
Cognition |
Volume |
37 |
Issue |
1-2 |
Pages |
167-196 |
Keywords |
Animals; Cercopithecus aethiops/*psychology; Concept Formation; *Dominance-Subordination; Female; Macaca fascicularis/*psychology; Male; *Social Behavior; *Social Environment |
Abstract ![sorted by Abstract field, ascending order (up)](img/sort_asc.gif) |
Monkeys recognize the social relations that exist among others in their group. They know who associates with whom, for example, and other animals' relative dominance ranks. In addition, monkeys appear to compare types of social relations and make same/different judgments about them. In captivity, longtailed macaques (Macaca fascicularis) trained to recognize the relation between one adult female and her offspring can identify the same relation among other mother-offspring pairs, and distinguish this relation from bonds between individuals who are related in a different way. In the wild, if a vervet monkey (Cercopithecus aethiops) has seen a fight between a member of its own family and a member of Family X, this increases the likelihood that it will act aggressively toward another member of Family X. Vervets act as if they recognize some similarity between their own close associates and the close associates of others. To make such comparisons the monkeys must have some way of representing the properties of social relationships. We discuss the adaptive value of such representations, the information they contain, their structure, and their limitations. |
Address |
Department of Anthropology, University of Pennsylvania, Philadelphia 19104 |
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0010-0277 |
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PMID:2269006 |
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no |
Call Number |
refbase @ user @ |
Serial |
702 |
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Author |
Santos, L.R.; Rosati, A.; Sproul, C.; Spaulding, B.; Hauser, M.D. |
Title |
Means-means-end tool choice in cotton-top tamarins (Saguinus oedipus): finding the limits on primates' knowledge of tools |
Type |
Journal Article |
Year |
2005 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
Volume |
8 |
Issue |
4 |
Pages |
236-246 |
Keywords |
Animals; *Behavior, Animal; *Choice Behavior; Female; Male; *Problem Solving; Saguinus/*psychology |
Abstract ![sorted by Abstract field, ascending order (up)](img/sort_asc.gif) |
Most studies of animal tool use require subjects to use one object to gain access to a food reward. In many real world situations, however, animals perform more than one action in sequence to achieve their goals. Of theoretical interest is whether animals have the cognitive capacity to recognize the relationship between consecutive action sequences in which there may be one overall goal and several subgoals. Here we ask if cotton-top tamarins, a species that in captivity uses tools to solve means-end problems, can go one step further and use a sequence of tools (means) to obtain food (end). We first trained subjects to use a pulling tool to obtain a food reward. After this initial training, subjects were presented with problems in which one tool had to be used in combination with a second in order to obtain food. Subjects showed great difficulty when two tools were required to obtain the food reward. Although subjects attended to the connection between the tool and food reward, they ignored the physical connection between the two tools. After training on a two-tool problem, we presented subjects with a series of transfer tests to explore if they would generalize to new types of connections between the tools. Subjects readily transferred to new connections. Our results therefore provide the first evidence to date that tamarins can learn to solve problems involving two tools, but that they do so only with sufficient training. |
Address |
Department of Psychology, Yale University, New Haven, CT, USA. laurie.santos@yale.edu |
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1435-9448 |
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PMID:15668762 |
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no |
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Equine Behaviour @ team @ |
Serial |
2495 |
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Author |
Bering, J.M. |
Title |
A critical review of the “enculturation hypothesis”: the effects of human rearing on great ape social cognition |
Type |
Journal Article |
Year |
2004 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
Volume |
7 |
Issue |
4 |
Pages |
201-212 |
Keywords |
Animals; *Cognition; *Culture; Hominidae/*psychology; Humans; *Imitative Behavior; Imprinting (Psychology); *Intention; Macaca; Psychological Theory; Social Behavior; *Social Environment; Species Specificity |
Abstract ![sorted by Abstract field, ascending order (up)](img/sort_asc.gif) |
Numerous investigators have argued that early ontogenetic immersion in sociocultural environments facilitates cognitive developmental change in human-reared great apes more characteristic of Homo sapiens than of their own species. Such revamping of core, species-typical psychological systems might be manifest, according to this argument, in the emergence of mental representational competencies, a set of social cognitive skills theoretically consigned to humans alone. Human-reared great apes' capacity to engage in “true imitation,” in which both the means and ends of demonstrated actions are reproduced with fairly high rates of fidelity, and laboratory great apes' failure to do so, has frequently been interpreted as reflecting an emergent understanding of intentionality in the former. Although this epigenetic model of the effects of enculturation on social cognitive systems may be well-founded and theoretically justified in the biological literature, alternative models stressing behavioral as opposed to representational change have been largely overlooked. Here I review some of the controversy surrounding enculturation in great apes, and present an alternative nonmentalistic version of the enculturation hypothesis that can also account for enhanced imitative performance on object-oriented problem-solving tasks in human-reared animals. |
Address |
Department of Psychology, University of Arkansas, Fayetteville, AR 72701, USA. jbering@uark.edu |
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1435-9448 |
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PMID:15004739 |
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Equine Behaviour @ team @ |
Serial |
2543 |
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