Male Badge Size Predicts Dominance Against Females in House Sparrows
نویسندگان
چکیده
منابع مشابه
Individual-learning ability predicts social-foraging strategy in house sparrows.
Social foragers can use either a 'producer' strategy, which involves searching for food, or a 'scrounger' strategy, which involves joining others' food discoveries. While producers rely on personal information and past experience, we may ask whether the tendency to forage as a producer is related to being a better learner. To answer this question, we hand-raised house sparrow (Passer domesticus...
متن کاملMale Morphology and Nest-site Quality in House Sparrows
-Previous research on House Sparrows (Passer domesticus) in Europe indicated that males with larger bibs are more likely to obtain nest sites with multiple potential nests. To test this observation experimentally, I created nest sites containing either one or two nest boxes. 1 found no morphological differences, including bib size, between males at single-box nest sites (SBNS’s) and those at do...
متن کاملHouse sparrows
Shinichi Nakagawa and Joel Pick introduce what we can learn from house sparrows.
متن کاملSong repertoire size predicts initial mating success in male song sparrows, Melospiza melodia
Male song sparrows sing repertoires of 4–13 distinct song types and have proved a valuable model for testing hypotheses concerning the function and evolution of song complexity. Captive female song sparrows solicit more copulations in response to playback of larger repertoires, yet it remains unclear whether male repertoire size influences female mate choice in natural situations. We used long-...
متن کاملMale house sparrows deliver more food to experimentally subsidized offspring
We explored behavioural adjustments made by parent house sparrows, Passer domesticus, when the nutritional condition of their dependent nestlings was improved experimentally. Male parents responded to artificially supplemented broods by increasing food deliveries, whereas female parents continued matching the already high rate of control females. Thus, parental care was not truncated in the fac...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Condor
سال: 2001
ISSN: 0010-5422,1938-5129
DOI: 10.1093/condor/103.1.151