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Rapid acquisition of an alarm response by a neotropical primate to a newly introduced avian predator
TLDR
Results not only show that non–human primates can rapidly acquire an alarm response to a newly introduced predator, but that they can detect and identify predators on the basis of acoustic cues alone.
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FORAGING ECOLOGY OF REINTRODUCED CAPTIVE-BRED SUBADULT HARPY EAGLES (HARPIA HARPYJA) ON BARRO COLORADO ISLAND, PANAMA
TLDR
A male and female Harpy Eagle (Harpia harpyja), both reintroduced captive-bred subadults, were observed on Barro Colorado Island, Panama for 89 and 205 days, respectively, between June 1999 and August 2000 and the female eagle was observed to capture solitary arboreal prey significantly more during sunny weather and the dry season.
Do responses of galliform birds vary adaptively with predator size?
TLDR
To test whether these birds are also sensitive to more detailed differences between raptor species, adult chickens with young were presented with variously sized trained raptors under controlled conditions and results suggested that the aerial alarm response may be triggered by general features of objects moving in the air.
View on Springer
A comparative approach to vocal learning: intraspecific variation in the learning process
TLDR
To examine whether genetic variation underlies intraspecific differences in vocal development, young male white-crowned sparrows from sedentary and migratory populations were reared in standardized conditions in the laboratory and tutored throughout the first year of life with a changing roster of tutor songs.
View on Elsevier
Cottontop tamarin, Saguinus oedipus, alarm calls contain sufficient information for recognition of individual identity
View on Elsevier
Experience-Dependent Plasticity for Auditory Processing in a Raptor
TLDR
A growing consensus in the neurosciences is that neural plasticity remains open throughout life, often driven by critical experiences, and studies in captivity using restrained animals and neurophysiological preparations confirm this.
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Predation: Prey plumage adaptation against falcon attack
Several plumage types are found in feral pigeons (Columba livia), but one type imparts a clear survival advantage during attacks by the swiftest of all predators — the peregrine falcon (Falco…
View on Springer
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