Kendall tau rank correlation coefficients (τ), p-value and sample size (N) for correlations between metal content (cadmium [Cd], copper [Cu], nickel [Ni] and lead [Pb]) of atmospheric emission (t y^-1) and concentrations in pied flycatcher (<i>F</i>. <i>hyp</i>) and great tit (<i>P</i>. <i>maj</i>) excrements (μg g^-1; dw) and dust collectors (ng m^-3).

<p>Significant correlations are shown in bold.</p><p>Kendall tau rank correlation coefficients (τ), p-value and sample size (N) for correlations between metal content (cadmium [Cd], copper [Cu], nickel [Ni] and lead [Pb]) of atmospheric emission (t y^-1) and concentrations in pied flycatcher (<i>F</i>. <i>hyp</i>) and great tit (<i>P</i>. <i>maj</i>) excrements (μg g^-1; dw) and dust collectors (ng m^-3).</p

Metal concentration (μg g^-1 dw, geometric mean ± 95% confidence limit) in excrement of pied flycatcher (<i>Ficedula hypoleuca</i>) nestlings

<p>sampled between 1992 and 2008 from polluted (black dots, ≤ 2 km from the smelter) and reference areas (open dots, > 4 km from the smelter). Numbers denote sample size.</p

Kendall tau rank correlation coefficients (τ), p-value and sample size (N) for correlations between metal content (cadmium [Cd], copper [Cu], nickel [Ni] and lead [Pb]) of atmospheric emission (t y^-1) and concentrations in pied flycatcher (<i>F</i>. <i>hyp</i>) and great tit (<i>P</i>. <i>maj</i>) excrements (μg g^-1; dw) and dust collectors (ng m^-3).

<p>Significant correlations are shown in bold.</p><p>Kendall tau rank correlation coefficients (τ), p-value and sample size (N) for correlations between metal content (cadmium [Cd], copper [Cu], nickel [Ni] and lead [Pb]) of atmospheric emission (t y^-1) and concentrations in pied flycatcher (<i>F</i>. <i>hyp</i>) and great tit (<i>P</i>. <i>maj</i>) excrements (μg g^-1; dw) and dust collectors (ng m^-3).</p

Map of the study area and position of the smelter and the fifteen sites (black dots) where nestling birds were sampled.

<p>Circle indicates zone 1, sites within 2 km from the smelter, and plus signs indicate city locations.</p

Metal concentration (μg g^-1 dw, geometric mean ± 95% confidence limit) in excrement of great tit (<i>Parus major</i>) nestlings

<p>sampled between 1992 and 2008 from polluted (black dots, ≤ 2 km from the smelter) and reference areas (open dots, > 4 km from the smelter). Numbers denote sample size.</p

Study species with sample sizes, average body mass, migratory status, diet, average liver mass, relative liver mass (liver mass/body mass %) average BMR (W) and relative BMR (W/g).

1)<p>Unpublished data by A.P. Møller.</p>2)<p>McKechnie et al. 2006 and McNab 2009 <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0033926#pone.0033926-McKechnie1" target="_blank">[36]</a>, <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0033926#pone.0033926-McNab1" target="_blank">[24]</a>.</p>3)<p>Cramp 1992, Cramp and Perrins 1993, 1994a, 1994b <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0033926#pone.0033926-Cramp1" target="_blank">[29]</a>, <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0033926#pone.0033926-Cramp2" target="_blank">[30]</a>, <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0033926#pone.0033926-Cramp3" target="_blank">[31]</a>, <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0033926#pone.0033926-Cramp4" target="_blank">[32]</a>.</p><p>Liver masses are based on the data provided by A.P. Møller and the average and relative BMR are based on the studies by McKechnie et al. 2006 and McNab 2009.</p

The mean (±95% CI) EROD activity in passerine species with different migratory status and feeding habits.

<p>Open circles denote migratory birds and solid circles non-migratory/partial migrants respectively.</p

Phylogenetic regressions.

<p>Phylogenetically corrected (OLS) regression between EROD activity and relative basal metabolic rate (BMR) (A) and relative liver mass (%) (B) in nine passerine species with associated 95% CI's (dotted lines) and 95% (PI) (dashed lines) mapped onto the original tip data space. Solid circles = migratory insectivores, open circles = migratory granivores, solid squares = non-migratory/partial migratory insectivores, open squares = non-migratory/partial migratory granivores.</p

EROD activities (estimated marginal means ±95% CI) in female livers of ten passerine species.

<p>Dark grey bars represent insectivores and white bars granivores. Letters above the bars indicate significant differences to the other species (GLM, Tukey's test <0.05): (a) A.sch = <i>A. schoenobaenus</i>, b) P.tro = <i>P. trochilus</i>, c) A.sci = <i>A. scirpaceus</i>, d) P.maj = <i>P. major</i>, e) H.rus = <i>H. rustica</i>, f) P.dom = <i>P. domesticus</i>, g) C.cae = <i>C. caeruleus</i>, h) F.coe = <i>F. coelebs</i>, i) C.chl = <i>C. chloris</i>, j) E.sch = <i>E. schoeniclus</i>).</p

Additional file 1: of Species and abundance of ectoparasitic flies (Diptera) in pied flycatcher nests in Fennoscandia

Molecular analysis of puparia and adult bird louse flies. Species and abundance of louse flies (Ornithomya spp.) and blowflies (Protocalliphora spp.) in nests of the pied flycatcher. (DOCX 46 kb