Composition of pied flycatcher (<Emphasis Type="Italic">Ficedula hypoleuca</Emphasis> Pall.) nestling diet in industrially polluted area |
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Authors: | E A Bel’skii E A Bel’skaya |
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Institution: | (1) Institute of Plant and Animal Ecology, Ural Division, Russian Academy of Science, 8th Street 202, 620144 Ekaterinburg, Russia |
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Abstract: | The composition of pied flycatcher (Ficedula hypoleuca Pall.) nestling diet was studied in the zone of strong pollution with emissions from the Middle Ural Copper Smelter (Revda,
Sverdlovsk oblast) and in the background area from 2005 to 2007. The results show that diversity of the diet decreases and
prevalence in it of one insect taxon (Lepidoptera) increases near the source of emissions. The proportion of uncharacteristic
food objects (orthopterans, herpetobiont invertebrates) and variation in the size of invertebrates brought by parents to their
nestlings increase, which is explained by degradation of forest habitats in the polluted area. Pied flycatchers provide nestlings
with sufficient quantities of food, but its quality in the polluted zone is lower than in the background area. |
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