Within-season divorce in Blue Tits (Cyanistes caeruleus)
نویسندگان
چکیده
منابع مشابه
Within-population variation in prevalence and lineage distribution of avian malaria in blue tits, Cyanistes caeruleus.
The development of molecular genetic screening techniques for avian blood parasites has revealed many novel aspects of their ecology, including greatly elevated diversity and complex host-parasite relationships. Many previous studies of malaria in birds have treated single study populations as spatially homogeneous with respect to the likelihood of transmission of malaria to hosts, and we have ...
متن کاملHeterozygosity-based assortative mating in blue tits (Cyanistes caeruleus): implications for the evolution of mate choice.
The general hypothesis of mate choice based on non-additive genetic traits suggests that individuals would gain important benefits by choosing genetically dissimilar mates (compatible mate hypothesis) and/or more heterozygous mates (heterozygous mate hypothesis). In this study, we test these hypotheses in a socially monogamous bird, the blue tit (Cyanistes caeruleus). We found no evidence for a...
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We compared heavy metal levels, calcium levels, breeding parameters and condition of nestling and adult Cyanistes caeruleus and Parus major along a heavy metal pollution gradient. Both species started laying earlier and showed inferior nestling growth and smaller fledging probability in the polluted areas, which are phenologically advanced in spring due to sparse forests. The major inter-specif...
متن کاملBlue tits (Cyanistes caeruleus) respond to an experimental change in the aromatic plant odour composition of their nest.
Although the use of olfaction by birds is now widely recognised, the olfactory abilities of passerine birds remain poorly explored, for historical reasons. Several studies however suggest that passerines can perceive volatile compounds in several biologically relevant contexts. In Corsica, recent findings suggest that cavity-nesting blue tits may use volatile compounds in the context of nest bu...
متن کاملSeasonal decline in provisioning effort and nestling mass of Blue Tits Cyanistes caeruleus: experimental support for the parent quality hypothesis
A common feature of many birds breeding in seasonal environments is that fitnessrelated parameters such as nestling mass or survival decline as the breeding season progresses. Consequently, there is a tendency for early breeders to have better reproductive performance than individuals breeding later in the season. This variation could be caused by factors associated with the date of laying, suc...
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ژورنال
عنوان ژورنال: Journal of Ornithology
سال: 2009
ISSN: 2193-7192,2193-7206
DOI: 10.1007/s10336-009-0483-2