Black-capped chickadee call dialects along a continuous habitat corridor

Article Abstract:

Gargle dialects in black-capped chickadees, Poecile atricapillus, seem to result from isolation by distance in continuous habitat. The gargle-call dialects become more dissimilar as the populations become further apart. Gargles appear to be learned vocalizations, and this distribution pattern may therefore occur as a result of inaccurate copying or innovations in gargle production which could be transferred locally to other birds. It is still necessary to establish whether there is a sensitive phase for learning the gargle call.

Behavior, Black-capped chickadee, Black capped chickadee

---

Depauperate meme pool of vocal signals in an island population of singing honeyeaters

Article Abstract:

There are many structural differences among the songs of the singing honeyeater, Meliphaga virescens, population on the Rottnest Island and mainland of Western Australia. The island population has fewer varieties of singing sounds in comparison with birds living on the mainland. The island population has fewer song types, syllable types, total syllables, and note per song compared to the mainland population. Founder effect is responsible for a reduction of the meme pool of the island birds.

Australia, Birds, Animal communication

---

Island and island-like effects on vocal repertoire of singing honeyeaters

Article Abstract:

The songs of the singing honeyeater Meliphage virescens, were studied to determine the effects of isolation on the meme pool of syllables.

Similar abstracts:

• Abstracts: Human-imprinted northern bobwhite chicks and indexing arthropod foods in habitat patches. Estimating calling rates of northern bobwhites in Western Oklahoma
• Abstracts: Male - male vocal interactions and the adjustment of song amplitude in a territorial bird. Pattern amplitude is related to pattern imitation during the song development of nightingales
• Abstracts: Warming climate may threaten a third of all species: small window of time for Habitat Protection. Species and their saviors
• Abstracts: Reorganization of deep ocean circulation accompanying a Late Cretaceous extinction event. Increased thermohaline stratification as a possible cause for an ocean anoxic event in the Cretaceous period
• Abstracts: Magma mixing by convective entrainment. Magma does the splits. Magma storage beneath Axial volcano on the Juan de Fuca mid-ocean ridge

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.