Records |
Author |
Parker, S.T. |
Title |
A general model for the adaptive function of self-knowledge in animals and humans |
Type |
Journal Article |
Year |
1997 |
Publication |
Consciousness and Cognition |
Abbreviated Journal |
Conscious Cogn |
Volume |
6 |
Issue |
1 |
Pages |
75-86 |
Keywords |
*Adaptation, Psychological; Animals; *Awareness; Concept Formation; Evolution; Humans; Phylogeny; *Self Concept; Species Specificity |
Abstract |
This article offers a general definition of self-knowledge that embraces all forms and levels of self-knowledge in animals and humans. It is hypothesized that various levels of self-knowledge constitute an ordinal scale such that each species in a lineage displays the forms of self-knowledge found in related species as well as new forms it and its sister species may have evolved. Likewise, it is hypothesized that these various forms of levels of self-knowledge develop in the sequence in which they evolved. Finally, a general hypothesis for the functional significance of self-knowledge is proposed along with subhypotheses regarding the adaptive significance of various levels of self-knowledge in mammals including human and nonhuman primates. The general hypothesis is that self-knowledge serves as a standard for assessing the qualities of conspecifics compared to those of the self. Such assessment is crucial to deciding among alternative reproductive and subsistence strategies. The qualities that are assessed, which vary across taxa, range from the size and strength of the self to its mathematical or musical abilities. This so-called assessment model of self-knowledge is based on evolutionary biological models for social selection and the role of assessment in animal communication. |
Address |
Anthropology Department, Sonoma State University, Rohnert Park, California, USA. Parker@Sonoma.edu |
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English |
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ISSN |
1053-8100 |
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Notes |
PMID:9170562 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
4160 |
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Author |
Nicol, C.J.; Potzsch, C.; Lewis, K.; Green, L.E. |
Title |
Matched concurrent case-control study of risk factors for feather pecking in hens on free-range commercial farms in the UK |
Type |
Journal Article |
Year |
2003 |
Publication |
British poultry science |
Abbreviated Journal |
Br Poult Sci |
Volume |
44 |
Issue |
4 |
Pages |
515-523 |
Keywords |
*Aggression; Analysis of Variance; Animal Husbandry/methods; Animals; Case-Control Studies; Chickens/*physiology; Feathers; Female; Multivariate Analysis; Odds Ratio; Regression Analysis; Species Specificity |
Abstract |
1. The aim of the study was to compare the management and husbandry of free-range flocks in the UK where feather pecking was either present (case) or absent (control). 2. One hundred flocks were enrolled into a concurrent case-control study: 50 where birds had recently started feather pecking, and 50 matched control flocks where birds of the same age had not started feather pecking. 3. Information was obtained from a detailed interview with the flock manager, and by direct inspection of the flock, house and range. 4. Initial univariate analyses revealed that case flocks were more likely to comprise ISA Brown than Lohmann, were more likely to be restricted from litter areas to prevent floor eggs, and were less likely to use the outside range. 5. Cluster analysis indicated that feather pecking was not associated with any particular husbandry system. 6. The only influential risk factor significant in the multivariable conditional logistic regression analysis was use of the outdoor range. The risk of feather pecking was reduced 9-fold in flocks where more than 20% of birds used the range on sunny days (odds ratio = 0.12). Use of the range was positively associated with the presence of trees and/or hedges on the range. |
Address |
Department of Clinical Veterinary Science, University of Bristol, England. c.j.nicol@bris.ac.uk |
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ISSN |
0007-1668 |
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Notes |
PMID:14584840 |
Approved |
no |
Call Number |
refbase @ user @ |
Serial |
79 |
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Author |
Macholc, E.J.A. |
Title |
Equine interspecies aggression |
Type |
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Year |
2006 |
Publication |
The Veterinary record |
Abbreviated Journal |
Vet. Rec. |
Volume |
159 |
Issue |
24 |
Pages |
824 |
Keywords |
*Aggression; Animals; *Behavior, Animal; Chickens; Ducks; *Horses; Species Specificity |
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ISSN |
0042-4900 |
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Notes |
PMID:17158722 |
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no |
Call Number |
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Serial |
1778 |
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Author |
Thrower, W.R. |
Title |
Aggression in horses |
Type |
Journal Article |
Year |
1970 |
Publication |
Proceedings of the Royal Society of Medicine |
Abbreviated Journal |
Proc R Soc Med |
Volume |
63 |
Issue |
2 |
Pages |
163-167 |
Keywords |
*Aggression; Animals; Behavior, Animal; Breeding; Evolution; *Horses; Humans; Species Specificity; Territoriality |
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English |
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Edition |
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ISSN |
0035-9157 |
ISBN |
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Medium |
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Conference |
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Notes |
PMID:5462347 |
Approved |
no |
Call Number |
refbase @ user @ |
Serial |
1966 |
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Author |
Xitco, M.J.J.; Gory, J.D.; Kuczaj, S.A. 2nd |
Title |
Dolphin pointing is linked to the attentional behavior of a receiver |
Type |
Journal Article |
Year |
2004 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
Volume |
7 |
Issue |
4 |
Pages |
231-238 |
Keywords |
*Animal Communication; Animals; *Association Learning; *Attention; Dolphins/*psychology; *Gestures; Humans; Imitative Behavior; Male; Orientation; Posture; Species Specificity |
Abstract |
In 2001, Xitco et al. (Anim Cogn 4:115-123) described spontaneous behaviors in two bottlenose dolphins (Tursiops truncatus) that resembled pointing and gaze alternation. The dolphins' spontaneous behavior was influenced by the presence of a potential receiver, and the distance between the dolphin and the receiver. The present study adapted the technique of Call and Tomasello [(1994) J Comp Psychol 108:307-317], used with orangutans to test the effect of the receiver's orientation on pointing in these same dolphins. The dolphins directed more points and monitoring behavior at receivers whose orientation was consistent with attending to the dolphins. The results demonstrated that the dolphins' pointing and monitoring behavior, like that of apes and infants, was linked to the attentional behavior of the receiver. |
Address |
Space and Naval Warfare Systems Center, Code 235, 53560 Hull Street, CA 92152-5001, San Diego, USA. mark.xitco@navy.mil |
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English |
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Series Issue |
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Edition |
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ISSN |
1435-9448 |
ISBN |
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Medium |
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Area |
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Expedition |
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Conference |
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Notes |
PMID:15088149 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2526 |
Permanent link to this record |
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Author |
Miklósi, Á.; Soproni, K. |
Title |
A comparative analysis of animals' understanding of the human pointing gesture |
Type |
Journal Article |
Year |
2006 |
Publication |
Animal cognition |
Abbreviated Journal |
Anim. Cogn. |
Volume |
9 |
Issue |
2 |
Pages |
81-93 |
Keywords |
*Animal Communication; Animals; *Behavior, Animal; Child; Child, Preschool; Dogs; Fixation, Ocular; *Gestures; Hand; Humans; *Nonverbal Communication; Pinnipedia; Primates; Problem Solving; *Recognition (Psychology); Species Specificity |
Abstract |
We review studies demonstrating the ability of some animals to understand the human pointing gesture. We present a 3-step analysis of the topic. (1) We compare and evaluate current experimental methods (2) We compare available experimental results on performance of different species and investigate the interaction of species differences and other independent variables (3) We evaluate how our present understanding of pointing comprehension answers questions about function, evolution and mechanisms. Recently, a number of different hypotheses have been put forward to account for the presence of this ability in some species and for the lack of such comprehension in others. In our view, there is no convincing evidence for the assumption that the competitive lifestyles of apes would inhibit the utilization of this human gesture. Similarly, domestication as a special evolutionary factor in the case of some species falls short in explaining high levels of pointing comprehension in some non-domestic species. We also disagree with the simplistic view of describing the phenomenon as a simple form of conditioning. We suggest that a more systematic comparative research is needed to understand the emerging communicative representational abilities in animals that provide the background for comprehending the human pointing gesture. |
Address |
Department of Ethology, Eotvos Lorand University, Budapest, Pazmany P 1/c, H-1117, Budapest, Hungary. miklosa@ludens.elte.hu |
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ISSN |
1435-9448 |
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Conference |
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Notes |
PMID:16235075 |
Approved |
no |
Call Number |
refbase @ user @ |
Serial |
463 |
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Author |
Stoinski, T.S.; Whiten, A. |
Title |
Social learning by orangutans (Pongo abelii and Pongo pygmaeus) in a simulated food-processing task |
Type |
Journal Article |
Year |
2003 |
Publication |
Journal of comparative psychology (Washington, D.C. : 1983) |
Abbreviated Journal |
J Comp Psychol |
Volume |
117 |
Issue |
3 |
Pages |
272-282 |
Keywords |
*Animal Communication; Animals; *Feeding Behavior; Female; *Imitative Behavior; Male; Pongo pygmaeus/*psychology; Problem Solving; Psychomotor Performance; Social Environment; Species Specificity; *Transfer (Psychology) |
Abstract |
Increasing evidence for behavioral differences between populations of primates has created a resurgence of interest in examining mechanisms of information transfer between individuals. The authors examined the social transmission of information in 15 captive orangutans (Pongo abelii and Pongo pygmaeus) using a simulated food-processing task. Experimental subjects were shown 1 of 2 methods for removing a suite of defenses on an “artificial fruit.” Control subjects were given no prior exposure before interacting with the fruit. Observing a model provided a functional advantage in the task, as significantly more experimental than control subjects opened the fruit. Within the experimental groups, the authors found a trend toward differences in the actual behaviors used to remove 1 of the defenses. Results support observations from the wild implying horizontal transfer of information in orangutans and show that a number of social learning processes are likely to be involved in the transfer of knowledge in this species. |
Address |
Department of Primate Research, Zoo Atlanta, Atlanta, GA 30315, USA. tstoinski@zooatlanta.org |
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English |
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Edition |
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ISSN |
0735-7036 |
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Notes |
PMID:14498803 |
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no |
Call Number |
refbase @ user @ |
Serial |
737 |
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Author |
Barry, K.L.; Goth, A. |
Title |
Call recognition in chicks of the Australian brush-turkey (Alectura lathami) |
Type |
Journal Article |
Year |
2006 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
Volume |
9 |
Issue |
1 |
Pages |
47-54 |
Keywords |
*Animal Communication; Animals; Australia; Cues; Galliformes/*physiology; Robotics; *Social Behavior; Species Specificity; Visual Perception |
Abstract |
Most birds rely on imprinting and experience with conspecifics to learn species-specific recognition cues. Australian brush-turkeys (Alectura lathami) do not imprint and form no bonds with parents. They hatch asynchronously, disperse widely and meet juvenile conspecifics at an unpredictable age. Nevertheless, in captivity, hatchlings respond to other chicks. A recent study, which involved the use of robotic models, found that chicks prefer to approach robots that emit specific visual cues. Here, we evaluated their response to acoustic cues, which usually play an important role in avian social cognition. However, in simultaneous choice tests, neither 2-day-old nor 9-day-old chicks preferred the choice arm with playback of either chick or adult conspecific calls over the arm containing a silent loudspeaker. Chicks of both age classes, however, scanned their surroundings more during chick playback, and the response was thus consistent in younger and older chicks. We also presented the chicks with robotic models, either with or without playback of chick calls. They did not approach the calling robot more than they did the silent robot, indicating that the combination of visual and acoustic cues does not evoke a stronger response. These results will allow further comparison with species that face similar cognitive demands in the wild, such as brood parasites. Such a comparative approach, which is the focus of cognitive ecology, will enable us to further analyse the evolution and adaptive value of species recognition abilities. |
Address |
Department of Biological Sciences, Macquarie University, Sydney, NSW 2109, Australia |
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ISSN |
1435-9448 |
ISBN |
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Notes |
PMID:16160818 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2484 |
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Author |
Menzel, E.W.J. |
Title |
Communication about the environment in a group of young chimpanzees |
Type |
Journal Article |
Year |
1971 |
Publication |
Folia Primatologica; International Journal of Primatology |
Abbreviated Journal |
Folia Primatol (Basel) |
Volume |
15 |
Issue |
3 |
Pages |
220-232 |
Keywords |
*Animal Communication; Animals; Environment; Fear; Leadership; *Pan troglodytes; Problem Solving; Social Behavior; Species Specificity; Vocalization, Animal |
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English |
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ISSN |
0015-5713 |
ISBN |
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Notes |
PMID:5120654 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
4184 |
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Author |
Heistermann, M.; Palme, R.; Ganswindt, A. |
Title |
Comparison of different enzyme-immunoassays for assessment of adrenocortical activity in primates based on fecal analysis |
Type |
Journal Article |
Year |
2006 |
Publication |
American journal of primatology |
Abbreviated Journal |
Am. J. Primatol. |
Volume |
68 |
Issue |
3 |
Pages |
257-273 |
Keywords |
11-Hydroxycorticosteroids/*analysis; Adrenocorticotropic Hormone/pharmacology; Anesthesia; Animals; Corticosterone/analysis; Feces/*chemistry; Glucocorticoids/*analysis; Haplorhini/*metabolism; Hydrocortisone/analysis; Hypothalamo-Hypophyseal System/drug effects/physiology; Immunoenzyme Techniques/*methods; Pituitary-Adrenal System/drug effects/physiology; Species Specificity |
Abstract |
Most studies published to date that used fecal glucocorticoid measurements to assess adrenocortical activity in primate (and many nonprimate) species applied a specific cortisol or corticosterone assay. However, since these native glucocorticoids are virtually absent in the feces of most vertebrates, including primates, the validity of this approach has recently been questioned. Therefore, the overall aim of the present study was to assess the validity of four enzyme-immunoassays (EIAs) using antibodies raised against cortisol, corticosterone, and reduced cortisol metabolites (two group-specific antibodies) for assessing adrenocortical activity using fecal glucocorticoid metabolite (GCM) measurements in selected primate species (marmoset, long-tailed macaque, Barbary macaque, chimpanzee, and gorilla). Using physiological stimulation of the hypothalamo-pituitary-adrenocortical (HPA) axis by administering exogenous ACTH or anesthesia, we demonstrated that at least two assays detected the predicted increase in fecal GCM levels in response to treatment in each species. However, the magnitude of response varied between assays and species, and no one assay was applicable to all species. While the corticosterone assay generally was of only limited suitability for assessing glucocorticoid output, the specific cortisol assay was valuable for those species that (according to high-performance liquid chromatography (HPLC) analysis data) excreted clearly detectable amounts of authentic cortisol into the feces. In contrast, in species in which cortisol was virtually absent in the feces, group-specific assays provided a much stronger signal, and these assays also performed well in the other primate species tested (except the marmoset). Collectively, the data suggest that the reliability of a given fecal glucocorticoid assay in reflecting activity of the HPA axis in primates clearly depends on the species in question. Although to date there is no single assay system that can be used successfully across species, our data suggest that group-specific assays have a high potential for cross-species application. Nevertheless, regardless of which GC antibody is chosen, our study clearly reinforces the necessity of appropriately validating the respective assay system before it is used. |
Address |
Department of Reproductive Biology, German Primate Center, Gottingen, Germany. mheiste@gwdg.de |
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0275-2565 |
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Notes |
PMID:16477600 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
4078 |
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