| impacts of climate and feeding conditions on the annual accumulation (1986-2009) of persistent organic pollutants in a terrestrial raptor. | the relationships between climate variability, feeding conditions, and the annual accumulation of polychlorinated biphenyls (pcb), 1,1-dichloro-2,2-bis (p-chlorophenyl) ethylene (p,p'-dde) and polybrominated diphenyl ethers (pbde) in eggs (n = 168) of tawny owls (strix aluco) were assessed over a 24-year period (1986-2009) in central norway. winter climate variables included the north atlantic oscillation (nao) and snow conditions, whereas feeding conditions were assessed using vole abundance. t ... | 2011 | 21842888 |
| temporal trends (1986-2005) of essential and non-essential elements in a terrestrial raptor in northern europe. | in the recent decades, the atmospheric deposition of many metals has declined in northern europe, mostly due to reductions of emissions in other parts of the europe. however, less is known about the temporal trends at higher trophic levels in terrestrial food chains. in this study we measured 39 different essential and non-essential elements in tawny owl (strix aluco) tail-feathers (n=633) collected annually between 1986 and 2005 in central norway. there was a strong decline in lead (pb) concent ... | 2013 | 23644358 |