Results 51 to 60 of about 4,352 (102)
ABSTRACT Tool use research has long made the distinction between tool using that is considered learned and flexible, and that which appears to be instinctive and stereotyped. However, animals with an inherited tool use specialisation can exhibit flexibility, while tool use that is spontaneously innovated can be limited in its expression and facilitated
Jennifer A. D. Colbourne +1 more
wiley +1 more source
New Caledonian crows attend to multiple functional properties of complex tools [PDF]
The ability to attend to the functional properties of foraging tools should affect energy-intake rates, fitness components and ultimately the evolutionary dynamics of tool-related behaviour.
St Clair, James J H, Rutz, Christian
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Behavioral Differences Between Urban and Rural American Crows (Corvus brachyrhynchos) [PDF]
The consequences of transforming a natural environment into a human-modified environment (i.e., urbanization) on wildlife has long been a topic of concern, but has been hampered by a lack of empirical evidence focused on animal behavior.
Montenegro, Carolina
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Revisiting the predation paradox for the Wood Thrush, a declining Neotropical migrant
Abstract Despite an increased density of mid‐trophic level predators in urban and suburban areas compared to rural areas, the survival of smaller prey animals, including the eggs and chicks of nesting songbirds, often remains relatively high in these areas.
Melanie L. Klein +3 more
wiley +1 more source
The status of the common crow Corvus brachyrhynchos brehm in the Great Basin [PDF]
Due to a lack of taxonomic and distributional information concerning the Common Crow Corvus brachryhynchos Brehm inhabiting the Great Basin of North America, Johnston (1961) in one of the most recent revisions on crows, was unable to include this area in
Richards, Gerald Low
core
Strong between-site variation in New Caledonian crows' use of hook-tool-making materials [PDF]
The study was funded through a BBSRC David Phillips Fellowship (grants BB/G023913/1 and BB/G023913/2 to CR) and doctoral studentships from the BBSRC (BK), JASSO (SS), and the School of Biology, University of St Andrews (JvdW).Functional tool use requires
van der Wal, Jessica Eva Megan +9 more
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Humans are often perceived as predators by free‐living animals, and thus, even non‐consumptive human activities such as outdoor recreation may trigger behavioural and physiological responses, often with negative consequences on individual fitness and population persistence.
Friederike Zenth +8 more
wiley +1 more source
Evaluation of drones as a tool for multi‐species nest surveys on linear rights‐of‐way
This paper examines the use of drones with infrared cameras as a tool in the detection of bird nests on linear rights‐of‐way, in comparison to standard ground‐based nest surveys. Abstract The varying application of drone use in wildlife research has expanded in recent years. With the ability to utilize a variety of different sensors (e.g., infrared [IR]
Kirsten E. Pearson +5 more
wiley +1 more source
We investigated low American oystercatcher (Haematopus palliatus) productivity in the Virginia barrier islands, which historically supported high oystercatcher reproductive success. We found that chick survival was lower than nest survival, and that management may need to adapt to address evolving threats from coastal flooding and a multi‐guild ...
Mikayla N. Call +6 more
wiley +1 more source
Corvus brachyurus A.E. Brehm Corvus brachyurus A.E. Brehm, 1854: 75 (Aegypten). Now Corvus rhipidurus Hartert, 1918. See Hartert and Kleinschmidt, 1901: 41; Hartert, 1918a: 7; 1918b: 361; 1918e: 21; Blake and Vaurie, 1962: 281; Dickinson, 2003: 515;
Lecroy, Mary
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