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| Author | McKinley, S.; Young, R.J. | ||||
| Title | The efficacy of the model-rival method when compared with operant conditioning for training domestic dogs to perform a retrieval-selection task | Type | Journal Article | ||
| Year | 2003 | Publication | Applied Animal Behaviour Science | Abbreviated Journal | Appl. Anim. Behav. Sci. |
| Volume | 81 | Issue | 4 | Pages | 357-365 |
| Keywords | Dogs; Learning; Operant conditioning; Model-rival; Cognition | ||||
| Abstract | Traditionally, dogs have been trained by operant conditioning techniques; that is, dogs make a desired behavioural response and this response is reinforced by a reward such as food. This type of training is very effective in training dogs to perform basic obedience behaviours (e.g. `stay'). However, dogs are social animals and should be predisposed to learn from social stimuli. In the present study, we used a modified version of the model-rival technique that has been extensively used in experiments investigating the cognitive ability of parrots. In this technique, social stimuli are used to create in the animal an interest in the object without the use of food or other rewards. Therefore, the animal learns the name of the object (intrinsic reward) and not that the object's name means food. In this experiment we compared the learning ability of nine pet dogs to solve the same retrieval-selection task having been previously trained using operant conditioning or model-rival techniques. The retrieval-selection task was the dogs had to correctly select the commanded object to bring to the experimenter from a group of three similar objects. The results show no difference in the speeds with which the dogs solved the test--demonstrating the efficacy of the model-rival method. This is the first time that the effectiveness of the model-rival technique has been experimentally demonstrated with dogs. Furthermore, we believe that the methodology reported in this paper has applications in dog training and in experiments into dog cognition. | ||||
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| Call Number | Equine Behaviour @ team @ | Serial | 2900 | ||
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| Author | B. Agnetta,; B. Hare,; M. Tomasello, | ||||
| Title | Cues to food location that domestic dogs (Canis familiaris) of different ages do and do not use | Type | Journal Article | ||
| Year | 2000 | Publication | Animal Cognition | Abbreviated Journal | Anim. Cogn. |
| Volume | 3 | Issue | 2 | Pages | 107-112 |
| Keywords | Dogs – Arctic wolves – Social cognition – Gaze following – Communication | ||||
| Abstract | Autoren B. Agnetta, B. Hare, M. Tomasello Zusammenfassung The results of three experiments are reported. In the main study, a human experimenter presented domestic dogs (Canis familiaris) with a variety of social cues intended to indicate the location of hidden food. The novel findings of this study were: (1) dogs were able to use successfully several totally novel cues in which they watched a human place a marker in front of the target location; (2) dogs were unable to use the marker by itself with no behavioral cues (suggesting that some form of human behavior directed to the target location was a necessary part of the cue); and (3) there were no significant developments in dogs' skills in these tasks across the age range 4 months to 4 years (arguing against the necessity of extensive learning experiences with humans). In a follow-up study, dogs did not follow human gaze into “empty space” outside of the simulated foraging context. Finally, in a small pilot study, two arctic wolves (Canis lupus) were unable to use human cues to locate hidden food. These results suggest the possibility that domestic dogs have evolved an adaptive specialization for using human-produced directional cues in a goal-directed (especially foraging) context. Exactly how they understand these cues is still an open question. Schlüsselwörter Key words Dogs – Arctic wolves – Social cognition – Gaze following – Communication |
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| Call Number | refbase @ user @ | Serial | 598 | ||
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| Author | Adachi, I.; Kuwahata, H.; Fujita, K. | ||||
| Title | Dogs recall their owner's face upon hearing the owner's voice | Type | Journal Article | ||
| Year | 2007 | Publication | Animal Cognition | Abbreviated Journal | Anim. Cogn. |
| Volume | 10 | Issue | 1 | Pages | 17-21 |
| Keywords | Cross-modal representation – Natural concepts – Dogs | ||||
| Abstract | Abstract We tested whether dogs have a cross-modal representation of human individuals. We presented domestic dogs with a photo of either the owner's or a stranger's face on the LCD monitor after playing back a voice of one of those persons. A voice and a face matched in half of the trials (Congruent condition) and mismatched in the other half (Incongruent condition). If our subjects activate visual images of the voice, their expectation would be contradicted in Incongruent condition. It would result in the subjects` longer looking times in Incongruent condition than in Congruent condition. Our subject dogs looked longer at the visual stimulus in Incongruent condition than in Congruent condition. This suggests that dogs actively generate their internal representation of the owner's face when they hear the owner calling them. This is the first demonstration that nonhuman animals do not merely associate auditory and visual stimuli but also actively generate a visual image from auditory information. Furthermore, our subject also looked at the visual stimulus longer in Incongruent condition in which the owner's face followed an unfamiliar person's voice than in Congruent condition in which the owner's face followed the owner's voice. Generating a particular visual image in response to an unfamiliar voice should be difficult, and any expected images from the voice ought to be more obscure or less well defined than that of the owners. However, our subjects looked longer at the owner's face in Incongruent condition than in Congruent condition. This may indicate that dogs may have predicted that it should not be the owner when they heard the unfamiliar person's voice. | ||||
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| Call Number | Admin @ knut @ | Serial | 4222 | ||
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| Author | Daniels, T.J.; Bekoff, M. | ||||
| Title | Feralization: The making of wild domestic animals | Type | Journal Article | ||
| Year | 1989 | Publication | 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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| Notes | Cited By (since 1996): 5; Export Date: 24 October 2008 | Approved | no | ||
| Call Number | Admin @ knut @ | Serial | 4580 | ||
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| Author | Gaunet, F. | ||||
| Title | How do guide dogs and pet dogs (Canis familiaris) ask their owners for their toy and for playing? | Type | Journal Article | ||
| Year | 2010 | Publication | Animal Cognition | Abbreviated Journal | Anim. Cogn. |
| Volume | 13 | Issue | 2 | Pages | 311-323 |
| Keywords | Dog – Deictic behaviour – Intentional communication – Guide dogs – Socialisation – Play – Social cognition | ||||
| Abstract | Abstract When apes are not fully understood by humans, they persist with attempts to communicate, elaborating their behaviours to better convey their meaning. Such abilities have never been investigated in dogs. The present study aimed to clarify any effect of the visual attentional state of the owner on dogs’ (Canis familiaris) social-communicative signals for interacting with humans, and to determine whether dogs persist and elaborate their behaviour in the face of failure to communicate a request. Gaze at a hidden target or at the owner, gaze alternation between a hidden target and the owner, vocalisations and contacts in 12 guide and 12 pet dogs were analysed (i) when the dogs were asked by their owners (blind or sighted) to fetch their inaccessible toy and (ii) when the dogs were subsequently given an unfamiliar object (apparent unsuccessful communication) or their toy (apparent successful communication). No group differences were found, indicating no effect of the visual status of the owner on the dogs’ socio-communicative modes (i.e. no sensitivity to human visual attention). Results, however, suggest that the dogs exhibited persistence (but not elaboration) in their “showing” behaviours in each condition, except that in which the toy was returned. Thus, their communication was about a specific item in space (the toy). The results suggest that dogs possess partially intentional non-verbal deictic abilities: (i) to get their inaccessible toy, the dogs gazed at their owners as if to trigger their attention; gaze alternation between the owner and the target direction, and two behaviours directed at the target were performed, apparently to indicate the location of the hidden toy; (ii) after the delivery of the toy, the dogs behaved as if they returned to the play routine, gazing at their owner whilst holding their toy. In conclusion, this study shows that dogs possess partially intentional non-verbal deictic abilities: they exhibit successive visual orienting between a partner and objects, apparent attention-getting behaviours, no sensitivity to the visual status of humans for communication, and persistence in (but no elaboration of) communicative behaviours when apparent attempts to “manipulate” the human partner fail. | ||||
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| Call Number | Equine Behaviour @ team @ | Serial | 5113 | ||
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| Author | Menges, R.W.; Furcolow, M.L.; Selby, L.A.; Habermann, R.T.; Smith, C.D. | ||||
| Title | Ecologic studies of histoplasmosis | Type | Journal Article | ||
| Year | 1967 | Publication | American Journal of Epidemiology | Abbreviated Journal | Am J Epidemiol |
| Volume | 85 | Issue | 1 | Pages | 108-119 |
| Keywords | Adolescent; Adult; Animals; Antibodies/*analysis; Carnivora; Cats; Cattle; Child; Child, Preschool; Dogs; Ecology; Female; Fluorescent Antibody Technique; Histoplasma/isolation & purification; Histoplasmin; Histoplasmosis/*epidemiology/*immunology; Horses; Humans; Infant; Infant, Newborn; Kansas; Male; Marsupialia; Mice; Middle Aged; Missouri; Rabbits; Skin Tests; *Soil Microbiology; Swine | ||||
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0002-9262 | ISBN | Medium | ||
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| Notes | PMID:5334640 | Approved | no | ||
| Call Number | Equine Behaviour @ team @ | Serial | 2747 | ||
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| Author | Fulhorst, C.F.; Hardy, J.L.; Eldridge, B.F.; Chiles, R.E.; Reeves, W.C. | ||||
| Title | Ecology of Jamestown Canyon virus (Bunyaviridae: California serogroup) in coastal California | Type | Journal Article | ||
| Year | 1996 | Publication | The American Journal of Tropical Medicine and Hygiene | Abbreviated Journal | Am J Trop Med Hyg |
| Volume | 55 | Issue | 2 | Pages | 185-189 |
| Keywords | Aedes/virology; Animals; Antibodies, Viral/blood; California/epidemiology; Cattle; Cattle Diseases/epidemiology; Deer; Dog Diseases/epidemiology; Dogs; Encephalitis Virus, California/immunology/*isolation & purification; Encephalitis, California/epidemiology/*veterinary; Female; Horse Diseases/epidemiology; Horses; Insect Vectors/virology; Lagomorpha; Male; Neutralization Tests/veterinary; Peromyscus; Rodent Diseases/epidemiology; Sigmodontinae | ||||
| Abstract | This paper reports the first isolation of Jamestown Canyon (JC) virus from coastal California and the results of tests for antibody to JC virus in mammals living in coastal California. The virus isolation was made from a pool of 50 Aedes dorsalis females collected as adults from Morro Bay, San Luis Obispo County, California. The virus isolate was identified by two-way plaque reduction-serum dilution neutralization tests done in Vero cell cultures. Sera from the mammals were tested for antibody to JC virus by a plaque-reduction serum dilution neutralization method. A high prevalence of JC virus-specific antibody was found in horses and cattle sampled from Morro Bay. This finding is additional evidence for the presence of a virus antigenically identical or closely related to JC virus in Morro Bay and indicates that the vectors of the virus in Morro Bay feed on large mammals. A high prevalence of virus-specific antibody was also found in horses sampled from Marin and San Diego counties. This finding suggests that viruses antigenically identical or closely related to JC virus are geographically widespread in coastal California. | ||||
| Address | School of Public Health, University of California, Berkeley, USA | ||||
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0002-9637 | ISBN | Medium | ||
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| Notes | PMID:8780458 | Approved | no | ||
| Call Number | Equine Behaviour @ team @ | Serial | 2656 | ||
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| Author | McHugh, C.P. | ||||
| Title | Ecology of a semi-isolated population of adult Anopheles freeborni: abundance, trophic status, parity, survivorship, gonotrophic cycle length, and host selection | Type | Journal Article | ||
| Year | 1989 | Publication | The American Journal of Tropical Medicine and Hygiene | Abbreviated Journal | Am J Trop Med Hyg |
| Volume | 41 | Issue | 2 | Pages | 169-176 |
| Keywords | Aging/physiology; Animals; Anopheles/*physiology; Breeding; California; Cattle/parasitology; Dogs/parasitology; Ecology; Feeding Behavior/physiology; Female; Horses/parasitology; Host-Parasite Relations; Male; Parity; Population Density; Rabbits/parasitology | ||||
| Abstract | A population of adult Anopheles freeborni near Sheridan, CA was sampled daily during 13 August-7 September 1984. Data on abundance, trophic status, and gonotrophic age were recorded. Abundance and gonotrophic age data were analyzed to estimate daily survivorship and gonotrophic cycle length. Daily survivorship for unfed mosquitoes was estimated to be 0.72 with a gonotrophic cycle of 6 days duration. Daily survivorship for bloodfed mosquitoes was estimated to be 0.74 with a gonotrophic cycle of 4 days. The 2 day difference in gonotrophic cycles between unfed and bloodfed mosquitoes was the result of the period required for maturation and mating of teneral females. In 1986, an incage release of field-collected females estimated survivorship at 0.75 per day. Precipitin tests of 1,338 blood-engorged mosquito abdomens indicated that bovids, horses, rabbits, and canids comprised 92% of bloodmeals; no bloodmeals of human origin were detected. | ||||
| Address | Department of Entomology, University of California, Davis | ||||
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0002-9637 | ISBN | Medium | ||
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| Notes | PMID:2774063 | Approved | no | ||
| Call Number | Equine Behaviour @ team @ | Serial | 2673 | ||
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| Author | Christensen, H.A.; Herrer, A. | ||||
| Title | Attractiveness of sentinel animals to vectors of leishmaniasis in Panama | Type | Journal Article | ||
| Year | 1973 | Publication | The American Journal of Tropical Medicine and Hygiene | Abbreviated Journal | Am J Trop Med Hyg |
| Volume | 22 | Issue | 5 | Pages | 578-584 |
| Keywords | Animals; Cricetinae; Dogs; Ecology; Horses; *Insect Vectors; Leishmania/isolation & purification; Leishmaniasis, Mucocutaneous/*etiology; Male; Panama; *Phlebotomus; Rats | ||||
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0002-9637 | ISBN | Medium | ||
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| Notes | PMID:4729738 | Approved | no | ||
| Call Number | Equine Behaviour @ team @ | Serial | 2712 | ||
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| Author | Manning, G.S.; Ratanarat, C. | ||||
| Title | Fasciolopsis buski (Lankester, 1857) in Thailand | Type | Journal Article | ||
| Year | 1970 | Publication | The American Journal of Tropical Medicine and Hygiene | Abbreviated Journal | Am J Trop Med Hyg |
| Volume | 19 | Issue | 4 | Pages | 613-619 |
| Keywords | Adolescent; Adult; Aged; Animals; Buffaloes; Cattle; Child; Child, Preschool; *Disease Reservoirs; Dogs; Ecology; *Fasciolidae; Feces; Female; Health Surveys; Horses; Humans; Infant; Infant, Newborn; Male; Middle Aged; *Plants, Edible; Sex Factors; *Snails; Swine; Thailand; Trematode Infections/*epidemiology | ||||
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0002-9637 | ISBN | Medium | ||
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| Notes | PMID:5425498 | Approved | no | ||
| Call Number | Equine Behaviour @ team @ | Serial | 2734 | ||
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