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Author |
Daniels, T.J.; Bekoff, M. |
Title |
Feralization: The making of wild domestic animals |
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Journal Article |
Year |
1989 |
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Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
Volume |
19 |
Issue |
1-3 |
Pages |
79-94 |
Keywords |
feralization; domestication; feral dogs |
Abstract |
The widely accepted viewpoint that feralization is the reverse of domestication requires that the feralization process be restricted to populations of animals and, therefore, cannot occur in individuals. An alternative, ontogenetic approach is presented in which feralization is defined as the process by which individual domestic animals either become desocialized from humans, or never become socialized, and thus behave as untamed, non-domestic animals. Feralization will vary among species and, intraspecifically, will depend upon an individual's age and history of socialization to humans. Because feralization is not equated with morphological change resulting from evolutionary processes, species formation is not an accurate indicator of feral condition. |
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Cited By (since 1996): 5; Export Date: 24 October 2008 |
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Admin @ knut @ |
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4580 |
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Briard, L.; Deneubourg, J.-L.; Petit, O. |
Title |
How stallions influence the dynamic of collective movements in two groups of domestic horses, from departure to arrival |
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Journal Article |
Year |
2017 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
Volume |
142 |
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Pages |
56-63 |
Keywords |
consensus; herding; polygyny; personal leadership; shared decision |
Abstract |
Abstract The role of leader in polygynous species has been solely attributed to the male for some time, but recent studies shown decision making to be distributed within the group. However, the specific reproductive strategy and behavioural repertoire of males in polygynous species such as horses may mean that these individuals still have the potential to play a specific role during decision-making. To investigate this subject, we thoroughly studied the behaviour of two domestic stallions during collective movements of their group. We found that they initiated rarely and sometimes failed to recruit the entire group. When departing as followers, they did not accelerate the joining process. Both stallions preferentially occupied the rear position and exhibited numerous monitoring behaviours. Herding behaviours were performed by only one stallion and mostly occurred outside movement context. Finally, we removed this herding stallion from its group to evaluate how the group dynamic changed. As a result, half of the collective movements were five times slower and mares were more dispersed in comparison when the stallion was in the group. Overall, our results suggest that, the two stallions maintained their role of group monitors from departure to arrival. Their influence on the movement dynamic was indirect and did not play a specific role in the process of decision making. |
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Equine Behaviour @ team @ |
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6151 |
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Author |
Feh, C.; Munkhtuya, B. |
Title |
Male infanticide and paternity analyses in a socially natural herd of Przewalski`s horses: Sexual selection? |
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Journal Article |
Year |
2008 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
Volume |
78 |
Issue |
3 |
Pages |
335-339 |
Keywords |
DNA paternity analysis; Human disturbance; Male infanticide; Przewalski's horse (Equus ferus przewalskii); Sexual selection |
Abstract |
The sexual selection hypothesis explains infanticide by males in many mammals. In our 11-year study, we investigated this hypothesis in a herd of Przewalski's horses where we had witnessed infanticidal attacks. Infanticide was highly conditional and not simply linked to takeovers. Attacks occurred in only five of 39 cases following a takeover, and DNA paternity revealed that, although infanticidal stallions were not the genetic fathers in four cases out of five, stallions present at birth did not significantly attempt to kill unrelated foals. Infanticide did not reduce birth intervals; only in one case out of five was the infanticidal stallion, the father of the next foal; mothers whose foals were attacked subsequently avoided associating with infanticidal stallions. Therefore, evidence for the sexual selection hypothesis was weak. The “human disturbance” hypothesis received some support, as only zoo bred stallions which grew up in unnatural social groups attacked foals of mares which were pregnant during takeovers. |
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Equine Behaviour @ team @ |
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4632 |
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Author |
Reid, P.J. |
Title |
Adapting to the human world: Dogs' responsiveness to our social cues |
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Journal Article |
Year |
2009 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
Volume |
80 |
Issue |
3 |
Pages |
325-333 |
Keywords |
Domestic dog; Social cognition; Communicative gestures |
Abstract |
Dogs are more skilful than a host of other species at tasks which require they respond to human communicative gestures in order to locate hidden food. Four basic interpretations for this proficiency surface from distilling the research findings. One possibility is that dogs simply have more opportunity than other species to learn to be responsive to human social cues. A different analysis suggests that the domestication process provided an opening for dogs to apply general cognitive problem-solving skills to a novel social niche. Some researchers go beyond this account and propose that dogs' co-evolution with humans equipped them with a theory of mind for social exchanges. Finally, a more prudent approach suggests that sensitivity to the behaviours of both humans and conspecifics would be particularly advantageous for a social scavenger like the dog. A predisposition to attend to human actions allows for rapid early learning of the association between gestures and the availability of food. |
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Equine Behaviour @ team @ |
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4755 |
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Kotrschal, K.; Schöberl, I.; Bauer, B.; Thibeaut, A.-M.; Wedl, M. |
Title |
Dyadic relationships and operational performance of male and female owners and their male dogs |
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Journal Article |
Year |
2009 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
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81 |
Issue |
3 |
Pages |
383-391 |
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Dyadic interactions; Human-animal companions; Human-animal relationships; Human-dog dyads; Personality; Social stress |
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In the paper we investigate how owner personality, attitude and gender influence dog behavior, dyadic practical functionality and the level of dog salivary cortisol. In three meetings, 12 female and 10 male owners of male dogs answered questionnaires including the Neo-FFI human personality inventory. Their dyadic behavior was video-taped in a number of test situations, and saliva samples were collected. Owners who scored highly in neuroticism (Neo-FFI dimension one) viewed their dogs as social supporters and spent much time with them. Their dogs had low baseline cortisol levels, but such dyads were less successful in the operational task. Owners who scored highly in extroversion (Neo-FFI dimension two) appreciated shared activities with their dogs which had relatively high baseline cortisol values. Dogs that had female owners were less sociable-active (dog personality axis 1) than dogs that had male owners. Therefore, it appears that owner gender and personality influences dyadic interaction style, dog behavior and dyadic practical functionality. |
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Equine Behaviour @ team @ |
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4947 |
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Virányi, Z.; Topál, J.; Gácsi, M.; Miklósi, Á.; Csányi, V. |
Title |
Dogs respond appropriately to cues of humans' attentional focus |
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Journal Article |
Year |
2004 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
Volume |
66 |
Issue |
2 |
Pages |
161-172 |
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Animals; *Attention; Bonding, Human-Pet; Communication; *Cues; Dogs; Humans; Recognition (Psychology) |
Abstract |
Dogs' ability to recognise cues of human visual attention was studied in different experiments. Study 1 was designed to test the dogs' responsiveness to their owner's tape-recorded verbal commands (Down!) while the Instructor (who was the owner of the dog) was facing either the dog or a human partner or none of them, or was visually separated from the dog. Results show that dogs were more ready to follow the command if the Instructor attended them during instruction compared to situations when the Instructor faced the human partner or was out of sight of the dog. Importantly, however, dogs showed intermediate performance when the Instructor was orienting into 'empty space' during the re-played verbal commands. This suggests that dogs are able to differentiate the focus of human attention. In Study 2 the same dogs were offered the possibility to beg for food from two unfamiliar humans whose visual attention (i.e. facing the dog or turning away) was systematically varied. The dogs' preference for choosing the attentive person shows that dogs are capable of using visual cues of attention to evaluate the human actors' responsiveness to solicit food-sharing. The dogs' ability to understand the communicatory nature of the situations is discussed in terms of their social cognitive skills and unique evolutionary history. |
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Department of Ethology, Eotvos Lorand University, Budapest, Hungary. zsofi.viranyi@freemail.hu |
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0376-6357 |
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PMID:15110918 |
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Equine Behaviour @ team @ |
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4957 |
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Author |
Wolff, A.; Hausberger, M.; Le Scolan, N. |
Title |
Experimental tests to assess emotionality in horses |
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Journal Article |
Year |
1997 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
Volume |
40 |
Issue |
3 |
Pages |
209-221 |
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Emotivity; Gregariousness; Horse; Neophobia; Open-field |
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Different tests were used to assess different aspects of the emotionality of 1-3 year-old horses: arena test; a [`]novel object' test; and a handling test. In reaction to the test situations no important differences were observed according to age or sex in the behaviour patterns, but clear individual differences were observed within these classes. The arena test seemed to reveal the degree of gregariousness of the animals whereas the results in the two other tests were correlated and seemed to reflect an inherent degree of fearfulness in the horse. Indices were developed that enabled to rank the animals, by taking into account all behaviour patterns shown. Such individual characteristics might have some genetic basis: half-siblings tended to behave the same way in most cases. |
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Equine Behaviour @ team @ |
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5018 |
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Author |
Hanggi, E.B.; Ingersoll, J.F. |
Title |
Stimulus discrimination by horses under scotopic conditions |
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Journal Article |
Year |
2009 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
Volume |
82 |
Issue |
1 |
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45-50 |
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Discrimination learning; Equine; Horse; Night vision; Scotopic vision |
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Scotopic vision in horses (Equus caballus) was investigated using behavioral measurements for the first time. Four horses were tested for the ability to make simple visual discriminations of geometric figures (circles and triangles) under various brightness levels within an enclosed building. Measurements of brightness ranging from 10.37 to 24.12 magnitudes per square arcsecond (mag/arcsec2; in candelas per square meter--7.70 to 2.43E-05 cd/m2) were taken using a Sky Quality Meter. These values approximated outdoor conditions ranging from twilight in open country to a dark moonless night in dense forest. The horses were able to solve the discrimination problems in all brightness settings up to 23.77 mag/arcsec2 (3.35E-05 cd/m2). Moreover, they easily navigated their way around obstacles located within the testing area in extremely dim light (>23.50 mag/arcsec2; 4.30E-05 cd/m2), which were in conditions too dark for the human experimenters to see. These findings support physiological data that reveal a rod-dominated visual system as well as observations of equine activity at night. |
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Equine Behaviour @ team @ |
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5051 |
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Author |
Conradt, L.; Roper, T.J. |
Title |
Deciding group movements: Where and when to go |
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Journal Article |
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2010 |
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Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
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84 |
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3 |
Pages |
675-677 |
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activity synchronisation; aggregation rules; collective decisions; democracy; group decisions; sexual segregation; decision sharing; social choice theory |
Abstract |
A group of animals can only move cohesively, if group members “somehow” reach a consensus about the timing (e.g., start) and the spatial direction/destination of the collective movement. Timing and spatial decisions usually differ with respect to the continuity of their cost/benefit distribution in such a way that, in principle, compromises are much more feasible in timing decision (e.g. median preferred time) than they are in spatial decisions. The consequence is that consensus costs connected to collective timing decisions are usually less skewed amongst group members than are consensus costs connected to spatial decisions. This, in turn, influences the evolution of decision sharing: sharing in timing decisions is most likely to evolve when conflicts are high relative to group cohesion benefits, while sharing in spatial decisions is most likely to evolve in the opposite situation. We discuss the implications of these differences for the study of collective movement decisions. |
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Equine Behaviour @ team @ |
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5086 |
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Author |
Rands, S.A. |
Title |
Group-movement [`]initiation' and state-dependent decision-making |
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Journal Article |
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2010 |
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Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
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84 |
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3 |
Pages |
668-670 |
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Decision-making; State-dependence; Dynamic programming; Co-operation |
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Equine Behaviour @ team @ |
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5087 |
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