A ball is not a Kong: Odor representation and search behavior in domestic dogs (Canis familiaris) of different education.

2018 ◽  
Vol 132 (2) ◽  
pp. 189-199 ◽  
Author(s):  
Juliane Bräuer ◽  
Julia Belger
Keyword(s):  
Canis Familiaris ◽  
Search Behavior ◽  
Domestic Dogs ◽  
Odor Representation

scholarly journals What factors really influence domestic dogs’ (Canis familiaris) search for an item dropped down a diagonal tube? The tubes task revisited

2018 ◽  
Author(s):  
Emma Tecwyn ◽  
Daphna Buchsbaum
Keyword(s):  
Canis Familiaris ◽  
Search Behavior ◽  
Domestic Dogs ◽  
Primate Species ◽  
Current Evidence ◽  
Causal Mechanism ◽  
Physical Reasoning ◽  
Potential Sources ◽  
Correct Location ◽  
Reasoning Skills

It has been suggested that domestic dogs—like young human children—have a ‘gravity bias’; they expect an unsupported object to fall straight down, regardless of any obstacles that redirect or halt its path. In the diagonal tube task this bias is revealed by a persistent tendency to search the incorrect location directly beneath the top of the tube the item is dropped into, rather than the correct location attached to the bottom of the tube. We presented dogs (N=112) with seven different versions of the diagonal tube task, replicating and extending previous research, to examine what factors influence their search behavior for an object dropped down a diagonal tube, and investigate their physical reasoning skills more generally. Contrary to previous claims, we found no evidence for dogs exhibiting a persistent, or even a trial 1, gravity bias. However, in line with previous reports, dogs were also unable to search correctly for the reward, even when it could be heard rolling through the tube, though they succeeded when the tube was transparent (Exp. 1a-c). Exp. 2 suggested that dogs might search on the basis of proximity, but Exp. 3a-b ruled this out and showed that they prefer to commence searching at the center of the apparatus. Finally, when potential sources of bias were eliminated from the task (Exp. 4), dogs’ performance was improved, but still not above chance, suggesting that they are unable to reason about the tube’s physical-causal mechanism. We conclude that, on current evidence, the gravity bias might be unique to some primate species.

scholarly journals Spatial and temporal dynamics of space use by free‐ranging domestic dogs Canis familiaris in rural Africa

2021 ◽  
Author(s):  
Jared K. Wilson‐Aggarwal ◽  
Cecily E.D. Goodwin ◽  
Tchonfienet Moundai ◽  
Metinou K. Sidouin ◽  
George J.F. Swan ◽  
...  
Keyword(s):  
Temporal Dynamics ◽  
Canis Familiaris ◽  
Space Use ◽  
Domestic Dogs ◽  
Spatial And Temporal Dynamics ◽  
Rural Africa ◽  
Free Ranging

scholarly journals LESÕES ANATOMOPATOLÓGICAS PRESENTES NA INFECÇÃO POR DIOCTOPHYMA RENALE (GOEZE, 1782) EM CÃES DOMÉSTICOS (CANIS FAMILIARIS,) LINNAEUS, 1758

2005 ◽  
Vol 10 (1) ◽  
Author(s):  
L.C. LEITE ◽  
S.M. CÍRIO ◽  
J.M.F. DINIZ ◽  
E. LUZ ◽  
M.A. NAVARRO-SILVA ◽  
...  
Keyword(s):  
Canis Familiaris ◽  
Domestic Dogs

Os autores descrevem as lesões anatomopatológicas de onze casos de parasitismo por Dioctophyma renale (Goeze, 1782), na cidade de Curitiba - PR, Brasil, constatados em necrópsias e achados clínicos em 1960 cães, no período de 1979 a 2004. Anatomopathologic lesions found in Dioctophyma renale (Goeze, 1782) infections in domestic dogs (Canis familiaris, LINNAEUS, 1758 Abstract The authors describe the anatomopathologic lesions of eleven cases of parasitism by Dioctophyma renale (Goeze, 1782), in Curitiba (PR, Brazil), found among 1960 necropsies carried out between 1979 and 2004 in dogs.

scholarly journals Cross-species referential signalling events in domestic dogs (Canis familiaris)

2018 ◽  
Vol 21 (4) ◽  
pp. 457-465 ◽  
Author(s):  
Hannah K. Worsley ◽  
Sean J. O’Hara
Keyword(s):  
Canis Familiaris ◽  
Domestic Dogs

Social behaviour of domestic dogs (Canis familiaris) in a public off-leash dog park

2018 ◽  
Vol 157 ◽  
pp. 691-701 ◽  
Author(s):  
Melissa S. Howse ◽  
Rita E. Anderson ◽  
Carolyn J. Walsh
Keyword(s):  
Social Behaviour ◽  
Canis Familiaris ◽  
Domestic Dogs
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