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Sublethal Lead Exposure Alters Movement Behavior in Free-Ranging Golden Eagles
Swedish University of Agricultural Sciences.
Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning. Swedish University of Agricultural Sciences.
Swedish University of Agricultural Sciences.
Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
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2015 (Engelska)Ingår i: Environmental Science & Technology, Vol. 51, s. 5729-5736Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Lead poisoning of animals due to ingestion of fragments from lead-based ammunition in carcasses and offal of shot wildlife is acknowledged globally and raises great concerns about potential behavioral effects leading to increased mortality risks. Lead levels in blood were correlated with progress of the moose hunting season. Based on analyses of tracking data, we found that even sublethal lead concentrations in blood (25 ppb, wet weight), can likely negatively affect movement behavior (flight height and movement rate) of freeranging scavenging Golden Eagles (Aquila chrysaetos). Lead levels in liver of recovered post-mortem analyzed eagles suggested that sublethal exposure increases the risk of mortality in eagles. Such adverse effects on animals are probably common worldwide and across species, where game hunting with lead-based ammunition is widespread. Our study highlights lead exposure as a considerably more serious threat to wildlife conservation than previously realized and suggests implementation of bans of lead ammunition for hunting.

Ort, förlag, år, upplaga, sidor
American Chemical Society (ACS), 2015. Vol. 51, s. 5729-5736
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Naturmiljö och människan
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URN: urn:nbn:se:nrm:diva-3345DOI: DOI:10.1021/acs.est.6b06024OAI: oai:DiVA.org:nrm-3345DiVA, id: diva2:1357924
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Therte are 10 more authors

This work was funded by the Vindval program of the Swedish Energy Agency (Dnr: 2013-001098, Dnr: 2014-005051)There are 10 more authors

Tillgänglig från: 2019-10-04 Skapad: 2019-10-04 Senast uppdaterad: 2019-10-05Bibliografiskt granskad

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