Song Dialects as Barriers to Dispersal in White-crowned Sparrows, Zonotrichia Leucophrys Nuttalli.
نویسندگان
چکیده
منابع مشابه
Roles of syntax information in directing song development in white-crowned sparrows (Zonotrichia leucophrys).
Syntactical cues play an important role in song learning in songbirds. White-crowned sparrows (Zonotrichia leucophrys), whose song typically consists of four to five different phrases, fail to construct normal songs if exposed to all phrase types presented singly (Plamondon, Goller, & Rose, 2008; Soha & Marler 2001b). The specific role of acquired syntax information in guiding ontogenetic traje...
متن کاملFrom song dialects to speciation in white-crowned sparrows.
The behavioural signals used in mate selection are a key component in the evolution of premating isolating barriers and, subsequently, the formation of new species. The importance of mating signals has a long tradition of study in songbirds, where many species differ in their song characteristics. In oscine songbirds, individual birds usually learn their songs from a tutor. Mistakes during lear...
متن کاملThe Annual Cycle of White-crowned Sparrows (zonotrichia Leucophrys Nuttall1) in Coastal California
The basic unit of temporal organization in long-lived animals is the annual cycle, In birds this includes most prominently the periods of winter maintenance, reproduction, molt, and migration or dispersal. To attain maximal, or at least adequate, fitness, all of these essential processes must occur and be timed in individuals and populations so that conflicting demands for time and energy are m...
متن کاملReproductive Behavior by a Female Songbird: Differential Stimulation by Natal and Alien Song Dialects
-The responsiveness of female White-crowned Sparrows (Zonotrichia leucophrys nuttalli) to male songs in their natal dialect (Clear) or in an alien dialect (Buzzy) was evaluated by measuring string-gathering and papershredding in a laboratory experiment. Females hearing Clear dialect songs gathered more strings than did females hearing Buzzy dialect songs. More females hearing Buzzy songs shredd...
متن کاملOn the evolution of brain size in relation to migratory behaviour in birds.
Migratory birds appear to have relatively smaller brain size compared to sedentary species. It has been hypothesized that initial differences in brain size underlying behavioural flexibility drove the evolution of migratory behaviour; birds with relatively large brains evolved sedentary habits and those with relatively small brains evolved migratory behaviour (migratory precursor hypothesis). A...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Evolution; international journal of organic evolution
دوره 32 4 شماره
صفحات -
تاریخ انتشار 1978