Element patterns in albatrosses and petrels: influence of trophic position, foraging range, and prey type
Anderson, O.R.J.; Phillips, R.A..; Shore, R.F.; McGill, R.A.R.; McDonald, R.A.; Bearhop, S.. 2010 Element patterns in albatrosses and petrels: influence of trophic position, foraging range, and prey type. Environmental Pollution, 158 (1). 98-107. 10.1016/j.envpol.2009.07.040Before downloading, please read NORA policies.
AndersonN007849PP.pdf - Accepted Version
We investigated the concentrations of 22 essential and non-essential elements among a community of Procellariiformes (and their prey) to identify the extent to which trophic position and foraging range governed element accumulation. Stable isotope analysis (SIA) was used to characterise trophic (δ15N) and spatial patterns (δ13C) among species. Few consistent patterns were observed in element distributions among species and diet appeared to be highly influential in some instances. Arsenic levels in seabird red blood cells correlated with δ15N and δ13C, demonstrating the importance of trophic position and foraging range for arsenic distribution. Arsenic concentrations in prey varied significantly across taxa, and in the strength of association with δ15N values (trophic level). In most instances, element patterns in Procellariiformes showed the clearest separation among species, indicating that a combination of prey selection and other complex species-specific characteristics (e.g. moult patterns) were generally more important determining factors than trophic level per se.
|Programmes:||CEH Topics & Objectives 2009 onwards > Biogeochemistry > BGC Topic 1 - Monitoring and Interpretation of Biogeochemical and Climate Changes > BGC - 1.1 - Monitor concentrations, fluxes, physico-chemical forms of current and emerging pollutants ...|
|Additional Information:||The definitive version of this article is available at www.elsevier.com|
|Additional Keywords:||Elements, Procellariiformes, Trophic Position, Diet, South Georgia|
|NORA Subject Terms:||Zoology
Ecology and Environment
|Date made live:||09 Dec 2009 14:05|
Actions (login required)