Males feed their mates more and take more risks for nestlings with larger female-built nests: an experimental study in the Nuthatch Sitta europaea
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چکیده
منابع مشابه
CLUTCH SIZE, EGG DIMENSIONS AND BREEDING STRATEGY IN THE NUTHATCH Sitta europaea Veličina pologa, dimenzije jaja i strategija gniježđenja brgljeza Sitta europaea
This study presents clutch size, egg-characteristics and within-clutch egg dimensions variation in Nuthatch Sitta europaea in deciduous forests (Hrvatsko zagorje area; NW Croatia). Study comprised the period from 2000 to 2002. Cluch size were 5–8 eggs (mean = 6.63, modal = 7 eggs). Egg length averaged 19,79 mm, egg breadth 14.42 mm, egg volume 2099.66 mm3 and egg shape index 1,37 (during tree y...
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ژورنال
عنوان ژورنال: Behavioral Ecology and Sociobiology
سال: 2016
ISSN: 0340-5443,1432-0762
DOI: 10.1007/s00265-016-2122-2