Concentration and origin of lead (Pb) in liver and bone of Eurasian buzzards (Buteo buteo) in the United Kingdom

Taggart, Mark A.; Shore, Richard F.; Pain, Deborah J.; Peniche, Gabriela; Martinez-Haro, Mónica; Mateo, Rafael; Homann, Julia; Raab, Andrea; Feldmann, Joerg; Lawlor, Alan J.; Potter, Elaine D.; Walker, Lee A. ORCID: https://orcid.org/0000-0002-1471-7075; Braidwood, David W.; French, Andrew S.; Parry-Jones, Jemima; Swift, John A.; Green, Rhys E.. 2020 Concentration and origin of lead (Pb) in liver and bone of Eurasian buzzards (Buteo buteo) in the United Kingdom. Environmental Pollution, 267, 115629. 10, pp. https://doi.org/10.1016/j.envpol.2020.115629

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Official URL: http://dx.doi.org/10.1016/j.envpol.2020.115629

Abstract/Summary

Ingestion of lead (Pb) derived from ammunition used in the hunting of game animals is recognised to be a significant potential source of Pb exposure of wild birds, including birds of prey. However, there are only limited data for birds of prey in Europe regarding tissue concentrations and origins of Pb. Eurasian buzzards (Buteo buteo) found dead in the United Kingdom during an 11-year period were collected and the concentrations of Pb in the liver and femur were measured. Concentrations in the liver consistent with acute exposure to Pb were found in 2.7% of birds and concentration in the femur consistent with exposure to lethal levels were found in 4.0% of individuals. Pb concentration in the femur showed no evidence of consistent variation among or within years, but was greater for old than for young birds. The Pb concentration in the liver showed no effect of the birds’ age, but varied markedly among years and showed a consistent tendency to increase substantially within years throughout the UK hunting season for gamebirds. The resemblance of the stable isotope composition of Pb from buzzard livers to that of Pb from the types of shotgun ammunition most widely-used in the UK increased markedly with increasing Pb concentration in the liver. Stable isotope results were consistent with 57% of the mass of Pb in livers of all of the buzzards sampled being derived from shotgun pellets, with this proportion being 89% for the birds with concentrations indicating acute exposure to Pb. Hence, most of the Pb acquired by Eurasian buzzards which have liver concentrations likely to be associated with lethal and sublethal effects is probably obtained when they prey upon or scavenge gamebirds and mammals shot using Pb shotgun pellets.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	https://doi.org/10.1016/j.envpol.2020.115629
UKCEH and CEH Sections/Science Areas:	Pollution (Science Area 2017-)
ISSN:	0269-7491
Additional Keywords:	stable isotope, shotgun, spent lead ammunition, acute exposure, shooting seasons
NORA Subject Terms:	Ecology and Environment
Date made live:	27 Oct 2020 12:35 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/528787

Item Type:

Publication - Article

Digital Object Identifier (DOI):

https://doi.org/10.1016/j.envpol.2020.115629

UKCEH and CEH Sections/Science Areas:

Pollution (Science Area 2017-)

ISSN:

0269-7491

Additional Keywords:

stable isotope, shotgun, spent lead ammunition, acute exposure, shooting seasons

NORA Subject Terms:

Ecology and Environment