Chapter 13 1 2 “ Information ” and the chick - a - dee call : communicating 3 with a complex vocal system . 4 5
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Vocal parameters that indicate threat level correlate with FOS immunolabeling in social and vocal control brain regions.
Transmitting information via communicative signals is integral to interacting with conspecifics, and some species achieve this task by varying vocalizations to reflect context. Although signal variation is critical to social interactions, the underlying neural control has not been studied. In response to a predator, black-capped chickadees (Poecile atricapilla) produce mobbing calls (chick-a-de...
متن کاملBlack-capped chickadees (Poecile atricapilla) convey predator-specific information in their "chick-a-dee" vocalizations
Communicating information about the specific features of potential predators to conspecifics may be adaptive if the predators differ in the degree of threat they represent. Although there has been considerable research on alarm signaling in response to different classes of predators (i.e., aerial vs. terrestrial), few studies have addressed whether animals distinguish among different predators ...
متن کاملVocal plasticity in captive black-capped chickadees : the acoustic basis and rate of call convergence
During the winter months, the acoustic structure of the 'chick-a-dee' call of black-capped chickadees, Parus atricapillus, is similar among flock members but varies significantly between different flocks . To investigate the process of within-flock convergence through which these differences arise, an experimental flock of birds previously unfamiliar with each other was established and maintain...
متن کاملAcoustic Mechanisms of a Species-Based Discrimination of the chick-a-dee Call in Sympatric Black-Capped (Poecile atricapillus) and Mountain Chickadees (P. gambeli)
Previous perceptual research with black-capped and mountain chickadees has demonstrated that these species treat each other's namesake chick-a-dee calls as belonging to separate, open-ended categories. Further, the terminal dee portion of the call has been implicated as the most prominent species marker. However, statistical classification using acoustic summary features suggests that all note-...
متن کاملVariation in chick-a-dee calls of a Carolina chickadee population, Poecile carolinensis: identity and redundancy within note types.
Chick-a-dee calls of chickadee species are structurally complex because calls possess a rudimentary syntax governing the ordering of their different note types. Chick-a-dee calls were recorded in an aviary from female and male birds from two field sites. This paper reports sources of variation of acoustical parameters of notes in these calls. There were significant sex and microgeographic diffe...
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