Blåmespar Parus caeruleus föder upp unge av svartvit flugsnappare Ficedula hypoleuca
نویسندگان
چکیده
منابع مشابه
Empty nests in the great tit (Parus major) and the pied flycatcher (Ficedula hypoleuca) in a polluted area.
Great tits (Parus major) are sometimes found to incubate in their nests even though the nests contain no eggs. This phenomenon has been observed in different parts of Europe (Sweden, Finland, UK, Netherlands, Germany) and it has become more common during the 1980s. We analysed the occurrence of empty nests in P. major and in pied flycatcher (Ficedula hypoleuca) in SW Finland from 6-year data co...
متن کاملNestling testosterone is associated with begging behaviour and fledging success in the pied flycatcher, Ficedula hypoleuca.
Animal signals are hypothesized to be costly in order to honestly reflect individual quality. Offspring solicitation signals given by nestling birds are thought to have evolved to advertise either need or individual quality. We tested the potential role of testosterone (T) in controlling the intensity of these signals by measuring begging behaviour as: (i) duration of the begging display and (i...
متن کاملFemale Hematozoan Infection Reduces Hatching Success but not Fledging Success in Pied Flycatchers Ficedula hypoleuca
—We report association between female blood parasite prevalence (percentage of infected birds) just after egg laying and reproductive success in two successive breeding seasons, in a breeding population of Pied Flycatcher Ficedula hypoleuca in central Spain. Females infected with Trypanosoma spp. had a higher probability of deserting their clutches during the incubation period than noninfected ...
متن کاملPlasma carotenoid levels are not directly related to heavy metal exposure or reproductive success in three insectivorous passerines.
The authors measured plasma carotenoid levels in three insectivorous bird species, the pied flycatcher (Ficedula hypoleuca), the blue tit (Cyanistes caeruleus), and the great tit (Parus major) in metal-polluted and unpolluted sites around a copper smelter. Their aim was to determine whether there was interspecific, age-related, or yearly variation in carotenoid levels and their responses to the...
متن کاملLarge-scale geographical variation in eggshell metal and calcium content in a passerine bird (Ficedula hypoleuca).
Birds have been used as bioindicators of pollution, such as toxic metals. Levels of pollutants in eggs are especially interesting, as developing birds are more sensitive to detrimental effects of pollutants than adults. Only very few studies have monitored intraspecific, large-scale variation in metal pollution across a species' breeding range. We studied large-scale geographic variation in met...
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ژورنال
عنوان ژورنال: Ornis Svecica
سال: 2011
ISSN: 2003-2633,1102-6812
DOI: 10.34080/os.v21.22616