Interspecific dominance relationships and hybridization between black-capped and mountain chickadees
نویسندگان
چکیده
منابع مشابه
Pitch-related cues in the songs of sympatric mountain and black-capped chickadees.
Acoustic frequency (pitch) cues are known to be important in the recognition of conspecific song in a number of songbird species. Mountain chickadees (Poecile gambeli) and black-capped chickadees (Poecile atricapillus) are sympatric over parts of their ranges and their species-typical songs share many features. I examined the acoustic characteristics of song of these two congeners in a region o...
متن کاملThe relationship between dominance, corticosterone, memory, and food caching in mountain chickadees (Poecile gambeli).
It has been hypothesized that in avian social groups subordinate individuals should maintain more energy reserves than dominants, as an insurance against increased perceived risk of starvation. Subordinates might also have elevated baseline corticosterone levels because corticosterone is known to facilitate fattening in birds. Recent experiments showed that moderately elevated corticosterone le...
متن کاملBehavioural profile predicts dominance status in mountain chickadees, Poecile gambeli
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Tests for the presence of pathogen DNA or antibodies are routinely used to survey for current or past infections. In diseases that emerge following a host jump estimates of infection rate might be under- or overestimated. We here examine whether observed rates of infection are biased for a non-focal host species in a model system. The bacterium Mycoplasma gallisepticum is a widespread pathogen ...
متن کاملMechanisms of what-where-when memory in black-capped chickadees (Poecile atricapillus): do chickadees remember "when"?
Integrated what-where-when memory, sometimes called 'episodic-like' memory, has been shown to occur in a number of animals, including food-storing birds and rodents. It is not always clear in these studies, however, what aspect of "when" is remembered. We examined memory for what, where, and when in black-capped chickadees Poecile atricapillus in a procedure designed to dissociate memory for el...
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ژورنال
عنوان ژورنال: Behavioral Ecology
سال: 2012
ISSN: 1465-7279,1045-2249
DOI: 10.1093/beheco/arr229