Seasonal dynamics of leaf-eating insects biomass and its influence on carotenoid content in feathers of Great Tit nestlings

Seasonal dynamics of leaf-eating insects biomass and its influence on carotenoid content in... Studies performed at the Zvenigorod Biological Station of the Moscow State University in 2010 showed that the biomass of leaf-eating insects during the first nesting cycle of the Great Tit was three times higher than that during the second cycle. As estimated from video recordings made at the nests, the proportions of leaf-eating larvae in the diet of first-and second-brood nestlings were 84.3 and 46.0%, respectively. In both cases, most of them were caterpillars of butterflies and moths (Lepidoptera), and their total proportion in the diet was higher in the first-than in second-brood nestlings. Lepidopteran larvae are the main source of carotenoids for the birds, and Raman spectroscopic analysis for carotenoids in ventral feathers confirmed that their content was also higher in the first-brood nestlings. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Ecology Springer Journals

Seasonal dynamics of leaf-eating insects biomass and its influence on carotenoid content in feathers of Great Tit nestlings

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Publisher
Springer US
Copyright
Copyright © 2013 by Pleiades Publishing, Ltd.
Subject
Life Sciences; Ecology; Environment, general
ISSN
1067-4136
eISSN
1608-3334
D.O.I.
10.1134/S1067413613060076
Publisher site
See Article on Publisher Site

Abstract

Studies performed at the Zvenigorod Biological Station of the Moscow State University in 2010 showed that the biomass of leaf-eating insects during the first nesting cycle of the Great Tit was three times higher than that during the second cycle. As estimated from video recordings made at the nests, the proportions of leaf-eating larvae in the diet of first-and second-brood nestlings were 84.3 and 46.0%, respectively. In both cases, most of them were caterpillars of butterflies and moths (Lepidoptera), and their total proportion in the diet was higher in the first-than in second-brood nestlings. Lepidopteran larvae are the main source of carotenoids for the birds, and Raman spectroscopic analysis for carotenoids in ventral feathers confirmed that their content was also higher in the first-brood nestlings.

Journal

Russian Journal of EcologySpringer Journals

Published: Nov 7, 2013

References

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