Dietary versus maternal sources of organochlorines in top predator seabird chicks: an experimental approach.
作者： Sophie Bourgeon , Eliza K. H. Leat , Robert W. Furness , Katrine Borgå , Sveinn Are Hanssen
DOI: 10.1021/ES400442Q
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摘要: We examined the relative importance of dietary sources and maternal transfer on organochlorine concentrations (∑OCs) in Great skua chicks (Stercorarius skua) Shetland by food supplementing parents with known wintering area. predicted that experimental (whose were supplemented) should have (i) higher growth rates and, (ii) lower ∑OCs due to dilution effect and/or being fed less contaminated compared control chicks. also a significant influence area chicks’ ∑OCs. Plasma adults, assessed prior manipulation, significantly differed between areas birds. Chicks weighed every 5 days plasma at 20 old. Based nitrogen carbon stable isotope analysis, supplementary contributed average 20% protein Although experienced better developmental conditions, did not alleviate their organochlorine...
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