Records |
Author |
Marten, K.; Psarakos, S. |
Title |
Using self-view television to distinguish between self-examination and social behavior in the bottlenose dolphin (Tursiops truncatus) |
Type |
Journal Article |
Year |
1995 |
Publication |
Consciousness and Cognition |
Abbreviated Journal |
Conscious Cogn |
Volume |
4 |
Issue ![sorted by Issue field, ascending order (up)](img/sort_asc.gif) |
2 |
Pages |
205-224 |
Keywords |
Animal Communication; Animals; *Attention; Discrimination Learning; Dolphins/*psychology; Female; Male; *Self Concept; *Social Behavior; *Television; *Visual Perception |
Abstract |
In mirror mark tests dolphins twist, posture, and engage in open-mouth and head movements, often repetitive. Because postures and an open mouth are also dolphin social behaviors, we used self-view television as a manipulatable mirror to distinguish between self-examination and social behavior. Two dolphins were exposed to alternating real-time self-view (“mirror mode”) and playback of the same to determine if they distinguished between them. The adult male engaged in elaborate open-mouth behaviors in mirror mode, but usually just watched when played back the same material. Mirror mode behavior was also compared to interacting with real dolphins (controls). Mark tests were conducted, as well as switches from front to side self-views to see if the dolphins turned. They presented marked areas to the self-view television and turned. The results suggest self-examination over social behavior. |
Address |
Earthtrust, Kailua, Hawaii 96734, USA |
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1053-8100 |
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PMID:8521259 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
4164 |
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Author |
Bernstein, I.S.; Dobrofsky, M. |
Title |
Compensatory social responses of older pigtailed monkeys to maternal separation |
Type |
Journal Article |
Year |
1981 |
Publication |
Developmental Psychobiology |
Abbreviated Journal |
Dev Psychobiol |
Volume |
14 |
Issue ![sorted by Issue field, ascending order (up)](img/sort_asc.gif) |
2 |
Pages |
163-168 |
Keywords |
Animals; Dependency (Psychology); Female; Macaca nemestrina; Male; *Maternal Deprivation; *Social Behavior |
Abstract |
Thirteen 3-5-year-old pigtailed monkeys were subjected to five 2-hr maternal separations while remaining in their normal social group. Significant changes in activity profiles were noted during separation and reunion phases. This suggests the continued social dependence of older offspring upon the matriarch. The shift in social activities reflected attempts by the juvenile and adolescent subjects to compensate for maternal absence by intensification of other affiliative social behavior and avoidance of potentially socially disruptive situation. The subjects oriented more towards kin in the absence of the matriarch, but actual time with kin decreased. Upon the return of the matriarch, the intensified some responses depressed during her absence and returned to preseparation social relationships. Play and aggressive responses declined whereas social approaches increased during maternal absences. Submissive responses declined upon the return of the matriarch, and play increased. The subjects also showed a marked, temporary increase of direct interaction, largely sniffing and grooming, with the matriarch upon her return. |
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0012-1630 |
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PMID:7202854 |
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no |
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Equine Behaviour @ team @ |
Serial |
4171 |
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Author |
Rudran, R. |
Title |
Adult male replacement in one-male troops of purple-faced langurs (Presbytis senex senex) and its effect on population structure |
Type |
Journal Article |
Year |
1973 |
Publication |
Folia Primatologica; International Journal of Primatology |
Abbreviated Journal |
Folia Primatol (Basel) |
Volume |
19 |
Issue ![sorted by Issue field, ascending order (up)](img/sort_asc.gif) |
2 |
Pages |
166-192 |
Keywords |
Age Factors; Aggression; Animals; *Behavior, Animal; Female; *Haplorhini; Humans; Leadership; Male; Maternal Behavior; Population Density; Sex Factors; *Social Behavior; Social Dominance |
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0015-5713 |
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PMID:4201908 |
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no |
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Equine Behaviour @ team @ |
Serial |
4182 |
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Author |
Kralj-Fiser, S.; Scheiber, I.B.R.; Blejec, A.; Moestl, E.; Kotrschal, K. |
Title |
Individualities in a flock of free-roaming greylag geese: behavioral and physiological consistency over time and across situations |
Type |
Journal Article |
Year |
2007 |
Publication |
Hormones and Behavior |
Abbreviated Journal |
Horm Behav |
Volume |
51 |
Issue ![sorted by Issue field, ascending order (up)](img/sort_asc.gif) |
2 |
Pages |
239-248 |
Keywords |
Animals; Behavior, Animal/*physiology; Corticosterone/metabolism; Feces; Female; Geese/*physiology; Individuality; Male; Personality/*physiology; Population Density; Reproducibility of Results; Seasons; *Social Behavior; Social Environment; Testosterone/*metabolism |
Abstract |
The concept of personality implies individual differences in behavior and physiology that show some degree of repeatability/consistency over time and across contexts. Most studies of animal personality, particularly studies of individuals' variation in physiological mechanisms, have been conducted on selected individuals in controlled conditions. We attempted to detect consistent behaviors as well as physiological patterns in greylag ganders (Anser anser) from a free-roaming flock living in semi-natural conditions. We tested 10 individuals repeatedly, in a handling trial, resembling tests for characterization of “temperaments” in captive animals. We recorded the behavior of the same 10 individuals during four situations in the socially intact flock: (1) a “low density feeding condition”, (2) a “high density feeding condition”, (3) a “low density post-feeding situation” and (4) while the geese rested. We collected fecal samples for determination of excreted immuno-reactive corticosterone (BM) and testosterone metabolites (TM) after handling trials, as well as the “low density feeding” and the “high density feeding” conditions. BM levels were very highly consistent over the repeats of handling trials, and the “low density feeding condition” and tended to be consistent over the first two repeats of the “high density feeding condition”. Also, BM responses tended to be consistent across contexts. Despite seasonal variation, there tended to be inter-test consistency of TM, which pointed to some individual differences in TM as well. Aggressiveness turned out to be a highly repeatable trait, which was consistent across social situations, and tended to correlate with an individual's resistance during handling trials. Also, “proximity to the female partner” and “sociability” – the average number of neighboring geese in a close distance while resting – were consistent. We conclude that aggressiveness, “affiliative tendencies” and levels of excreted corticosterone and testosterone metabolites may be crucial factors of personality in geese. |
Address |
University of Ljubljana, Biotechnical faculty, Slovenia. simona.kralj@guest.arnes.si |
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0018-506X |
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PMID:17196200 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
4189 |
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Author |
van der Kolk, J.H.; Nachreiner, R.F.; Schott, H.C.; Refsal, K.R.; Zanella, A.J. |
Title |
Salivary and plasma concentration of cortisol in normal horses and horses with Cushing's disease |
Type |
Journal Article |
Year |
2001 |
Publication |
Equine Veterinary Journal |
Abbreviated Journal |
Equine Vet J |
Volume |
33 |
Issue ![sorted by Issue field, ascending order (up)](img/sort_asc.gif) |
2 |
Pages |
211-213 |
Keywords |
Adrenal Cortex Function Tests/standards/veterinary; Animals; Cushing Syndrome/diagnosis/metabolism/*veterinary; Female; Horse Diseases/blood/*diagnosis/metabolism; Horses/blood/*metabolism; Hydrocortisone/blood/*metabolism; Male; Predictive Value of Tests; Reference Values; Saliva/*metabolism |
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Address |
Department of Large Animal Medicine and Nutrition, Veterinary Faculty, Utrecht University, The Netherlands |
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0425-1644 |
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PMID:11266074 |
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no |
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Equine Behaviour @ team @ |
Serial |
4281 |
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Author |
Scordato, E.S.; Drea, C.M. |
Title |
Scents and sensibility: information content of olfactory signals in the ringtailed lemur, Lemur catta |
Type |
Journal Article |
Year |
2007 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
Volume |
73 |
Issue ![sorted by Issue field, ascending order (up)](img/sort_asc.gif) |
2 |
Pages |
301-314 |
Keywords |
chemical communication; female dominance; individual recognition; intrasexual competition; Lemur catta; mate choice; reproductive signalling; ringtailed lemur; scent marking; seasonality |
Abstract |
The function of olfactory signalling in social species is less well understood than in asocial species. Consequently, we examined olfactory communication in the ringtailed lemur, a socially complex primate that retains a functional vomeronasal organ, has well-developed scent glands and shows a suite of scent-marking behaviour. To assess the information content of different types of scent gland secretions, we decoupled olfactory cues from the visual and behavioural modalities with which scent marking is normally associated. We presented male and female subjects (signal receivers) with a series of choice tests between odours derived from conspecific donors (signal senders) varying by sex, age, social status and reproductive condition. We additionally examined the influence of the receivers' reproductive state and familiarity with the signaller. The reproductive condition, social status and familiarity of senders and receivers affected signal transmission; specifically, male receivers attended most to the odours of conspecifics in breeding condition and to the odours of familiar, dominant animals. By contrast, females varied their responses according to both their own reproductive state and that of the sender. Based on male and female patterns of countermarking, we suggest that scent marking serves a function in intergroup spacing and intrasexual competition for both sexes, as might be expected in a female-dominant species. By contrast, minimal female interest in male odours counters a female mate choice function for scent marking in this species. Nevertheless, scent marks are critical to male-male competition and, therefore, may be subject to sexual selection. |
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no |
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Equine Behaviour @ team @ |
Serial |
4648 |
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Author |
Reboreda, J.C.; Clayton, N.S.; Kacelnik, A. |
Title |
Species and sex differences in hippocampus size in parasitic and non-parasitic cowbirds |
Type |
Journal Article |
Year |
1996 |
Publication |
Neuroreport |
Abbreviated Journal |
Neuroreport |
Volume |
7 |
Issue ![sorted by Issue field, ascending order (up)](img/sort_asc.gif) |
2 |
Pages |
505-508 |
Keywords |
Animals; Birds/*physiology; Female; Hippocampus/*anatomy & histology; Male; Nesting Behavior/*physiology; Sex Characteristics; Species Specificity; Telencephalon/anatomy & histology |
Abstract |
To test the hypothesis that selection for spatial abilities which require birds to locate and to return accurately to host nests has produced an enlarged hippocampus in brood parasites, three species of cowbird were compared. In shiny cowbirds, females search for host nests without the assistance of the male; in screaming cowbirds, males and females inspect hosts' nests together; in bay-winged cowbirds, neither sex searches because this species is not a brood parasite. As predicted, the two parasitic species had a relatively larger hippocampus than the non-parasitic species. There were no sex differences in relative hippocampus size in screaming or bay-winged cowbirds, but female shiny cowbirds had a larger hippocampus than the male. |
Address |
Instituto de Biologia y Medicina Experimental-CONICET, Buenos Aires, Argentina |
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0959-4965 |
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PMID:8730816 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
4798 |
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Author |
Soproni, K.; Miklósi, A.; Topál, J.; Csányi, V. |
Title |
Comprehension of human communicative signs in pet dogs (Canis familiaris) |
Type |
Journal Article |
Year |
2001 |
Publication |
Journal of Comparative Psychology (Washington, D.C. : 1983) |
Abbreviated Journal |
J Comp Psychol |
Volume |
115 |
Issue ![sorted by Issue field, ascending order (up)](img/sort_asc.gif) |
2 |
Pages |
122-126 |
Keywords |
Animals; *Behavior, Animal; Choice Behavior; Dogs/*psychology; Female; Humans; Male; Nonverbal Communication/*psychology; *Recognition (Psychology); *Social Behavior |
Abstract |
On the basis of a study by D. J. Povinelli, D. T. Bierschwale, and C. G. Cech (1999), the performance of family dogs (Canis familiaris) was examined in a 2-way food choice task in which 4 types of directional cues were given by the experimenter: pointing and gazing, head-nodding (“at target”), head turning above the correct container (“above target”), and glancing only (“eyes only”). The results showed that the performance of the dogs resembled more closely that of the children in D. J. Povinelli et al.'s study, in contrast to the chimpanzees' performance in the same study. It seems that dogs, like children, interpret the test situation as being a form of communication. The hypothesis is that this similarity is attributable to the social experience and acquired social routines in dogs because they spend more time in close contact with humans than apes do, and as a result dogs are probably more experienced in the recognition of human gestures. |
Address |
Department of Ethology, Budapest, Hungary. lavina@ludens.elte.hu |
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0735-7036 |
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PMID:11459158 |
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no |
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Equine Behaviour @ team @ |
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4963 |
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Author |
Gosling, S.D. |
Title |
Personality dimensions in spotted hyenas (Crocuta crocuta) |
Type |
Journal Article |
Year |
1998 |
Publication |
Journal of Comparative Psychology (Washington, D.C. : 1983) |
Abbreviated Journal |
J Comp Psychol |
Volume |
112 |
Issue ![sorted by Issue field, ascending order (up)](img/sort_asc.gif) |
2 |
Pages |
107-118 |
Keywords |
Animals; Carnivora/*psychology; Female; Humans; Male; *Personality; Personality Assessment/statistics & numerical data; Psychometrics; Reproducibility of Results; Species Specificity; Temperament |
Abstract |
Personality ratings of 34 spotted hyenas (Crocuta crocuta) were made by 4 observers who knew the animals well. Analyses suggest that (a) hyena personality traits were rated with generally high reliability; (b) 5 broad dimensions (Assertiveness, Excitability, Human-Directed Agreeableness, Sociability, and Curiosity) captured about 75% of the total variance; (c) this dimensional structure could not be explained in terms of dominance status, sex, age, or appearance; and (d) as expected, female hyenas were more assertive than male hyenas. Comparisons with previous research provide evidence for the cross-species generality of Excitability, Sociability, and especially Assertiveness. Discussion focuses on methodological issues in research on animal personality and on the potential contributions this research can make for understanding the biological and environmental bases of personality. |
Address |
Department of Psychology, University of California, Berkeley 94720-1650, USA. samiam@uclink.berkeley.edu |
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0735-7036 |
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PMID:9642781 |
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Equine Behaviour @ team @ |
Serial |
5019 |
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Author |
Jacobs, A.; Maumy, M.; Petit, O. |
Title |
The influence of social organisation on leadership in brown lemurs (Eulemur fulvus fulvus) in a controlled environment |
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Journal Article |
Year |
2008 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
Volume |
79 |
Issue ![sorted by Issue field, ascending order (up)](img/sort_asc.gif) |
2 |
Pages |
111-113 |
Keywords |
Animals; *Decision Making; Dominance-Subordination; *Exploratory Behavior; Female; Group Structure; *Leadership; Lemur/*psychology; Male; Sex Factors; *Social Environment |
Abstract |
Studies on leadership during group movements in several lemur species showed that females were responsible for the travelling choices concerning time and direction. Interestingly, in these species females are dominant over males. We investigated the influence of social organisation upon leadership processes by studying a lemur species in which social organisation is characterized by the absence of female dominance: the brown lemur (Eulemur fulvus fulvus). The study was conducted on a semi-free ranging group of 11 individuals and the analysis performed on 69 group movements showed that all the individuals could initiate a group movement. In 34 cases, the whole group moved. There was no significant difference in the number of start attempts or in the number of group members involved from one initiator to another. Moreover, there was no effect of sex or age of the initiator on the number of individuals following it or on the speed of the joining process. Therefore, the leadership observed is widely distributed to all group members. These results support the hypothesis of an influence of social organisation upon the decision-making processes but still remain to be studied in a more relevant ecological context. |
Address |
IPHC-DEPE, Equipe d'ethologie des primates, UMR 7178, Centre National de la Recherche Scientifique-Universite Louis Pasteur and Centre de Primatologie, Strasbourg, France |
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0376-6357 |
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PMID:18586413 |
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Equine Behaviour @ team @ |
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5127 |
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