Výsledky vyhledávání - "Jan K. Tornick"

Clark's nutcrackers (Nucifraga columbiana) use a visual barrier for cache protection

Publikováno v: Journal of comparative psychology (Washington, D.C. : 1983). 135(2)

Previous work with corvids such as scrub jays (Aphelocoma californica) and ravens (Corvus corax) suggests that many social corvids alter their caching behavior when observed by conspecifics to protect their caches. We examined whether the Clark's nut

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::961a77c9f895d19a1e96985aa24ee5cc
https://pubmed.ncbi.nlm.nih.gov/33444031

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Clark’s nutcrackers (Nucifraga columbiana) are sensitive to distance, but not lighting when caching in the presence of a conspecific

Autor: Jan K. Tornick, Sara N. Rushia, Brett M. Gibson

Publikováno v: Behavioural Processes. 123:125-133

We examined the caching behavior of the Clark's nutcracker (Nucifraga columbiana), a relatively asocial corvid bird, during social and non-social conditions with conspecifics. Past work by Dally et al., (2004, 2005a) has found that the related but mo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::095293424317d210f2f374c90f75b860
https://doi.org/10.1016/j.beproc.2015.10.023

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Tests of inferential reasoning by exclusion in Clark’s nutcrackers (Nucifraga columbiana)

Autor: Brett M. Gibson, Jan K. Tornick

Publikováno v: Animal Cognition. 16:583-597

We examined inferential reasoning by exclusion in the Clark's nutcracker (Nucifraga columbiana) using two-way object-choice procedures. While other social scatter-hoarding corvids appear capable of engaging in inferential reasoning, it remains unclea

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ae870587ae80165b6c5e892e6cf832b9
https://doi.org/10.1007/s10071-013-0595-1

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Factors Affecting Aggression during Nest Guarding in the Eastern Red-Backed Salamander (Plethodon cinereus)

Autor: Jan K. Tornick

Publikováno v: Herpetologica. 66:385-392

Defending young against intruders is a potentially risky behavior, and is energetically costly. Yet female eastern red-backed salamanders, Plethodon cinereus, guard their clutches for many weeks and aggressively defend eggs against predators and cons

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::751053c96f7b866532c729b66c8d1031
https://doi.org/10.1655/09-037a.1

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An investigation of quantity discrimination in Clark's nutcrackers (Nucifraga columbiana)

Autor: Emily S. Callahan, Brett M. Gibson, Jan K. Tornick

Publikováno v: Journal of comparative psychology (Washington, D.C. : 1983). 129(1)

We examined quantity discrimination in the Clark’s nutcracker (Nucifraga columbiana), a corvid bird with a strong dependence upon caching and recovering nuts. We presented 2 sets of nuts simultaneously, in 21 different conditions, to see if the nut

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8699eae72a648a1f45f0e1ab74e8a97d
https://pubmed.ncbi.nlm.nih.gov/25150963

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Clark's nutcrackers (Nucifraga columbiana) use gestures to identify the location of hidden food

Autor: Matthew Wilkinson, David Kispert, Jan K. Tornick, Brett M. Gibson

Publikováno v: Animal cognition. 14(1)

Heterospecific cues, such as gaze direction and body position, may be an important source of information that an animal can use to infer the location of resources like food. The use of heterospecific cues has been largely investigated using primates,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9df1f687cc5887636f0ef9a96e1809af
https://pubmed.ncbi.nlm.nih.gov/20838837

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