Organochlorine residue levels in livers of birds of prey from Spain: Inter-species comparison in relation with diet and migratory patterns

Barend van Drooge, Rafael Mateo, Íngrid Vives, Iris Cardiel, Raimon Guitart

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32 Citations (Scopus)

Abstract

Livers from 130 specimens corresponding to 18 species of raptors from Spain were analysed for persistent organochlorine (OC) residues. In all species, p,p′-DDE was the most abundant individual OC compound detected, with geometric means ranging from 61 to 40,086 ng/g ww. The geometric mean for ∑PCB ranged from 225 to 9184 ng/g ww. Migration to Africa, south of Sahara, where p,p′-DDT is still in use, was not associated with higher liver concentrations of its metabolite, p,p′-DDE. The presence of birds in the diet of the species was an important species-specific factor determining the mean liver concentrations of p,p′-DDE and ∑PCB. The effect of the diet on OC concentrations in liver is explained by the lower metabolising capacity of OC compounds in birds, especially for p,p′-DDE. © 2007 Elsevier Ltd. All rights reserved.
Original languageEnglish
Pages (from-to)84-91
JournalEnvironmental Pollution
Volume153
DOIs
Publication statusPublished - 1 May 2008

Keywords

  • Diet
  • Migration
  • Organochlorine pesticide
  • PCB
  • Raptors

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