Relationships among migratory whooper swan movements, the timing of H5N1 outbreaks, and the density of poultry in eastern Asia.

<p>Solid line represents mean poultry density at whooper swan locations through the annual cycle. Circles (poultry), diamonds (migratory waterbirds), and triangles (wild non-waterbirds) indicate the timing and underlying poultry density at each H5N1 outbreak event.</p

Mean weekly exposure of whooper swans to poultry by annual cycle stage.

<p>Mean weekly exposure of whooper swans to poultry by annual cycle stage.</p

Satellite transmitter performance summary.

*<p>Location classes are an indication of precision. Class G indicates a GPS fix with precision ±18.5 m. Conventional Argos location classes 3, 2, 1, and 0 indicate the location was obtained with 4 messages and precision ≤150 m , 150–350 m, 350–1000 m, and >1000 m, respectively. Location classes A (3 messages) and B (2 messages) do not have precision estimates and class Z indicates an unstable location solution.</p

Migration chronology and transmission history summary.

<p>Table does not include s584, for which messages were not received >7 d after release.</p

Poultry density and H5N1 outbreak locations [circles (poultry), diamonds (migratory waterbirds), and triangles (wild non-waterbirds)] in eastern Asia (2003–2007).

<p>Poultry density and H5N1 outbreak locations [circles (poultry), diamonds (migratory waterbirds), and triangles (wild non-waterbirds)] in eastern Asia (2003–2007).</p

Frequency of poultry and wild bird H5N1 outbreak events in relation to season as determined by whooper swan annual cycle stage.

<p>Circles, squares, diamonds, and triangles represent the expected number of outbreaks in each of bird sector, bars represent the actual number of outbreaks, and arrows up/down indicate if there were greater than or less than expected numbers of outbreaks, respectively.</p

Whooper swan movements (2006–2007) and proximity to HPAI outbreak locations (2003–2007) affecting poultry (circles) and wild non-waterbirds (triangles) in (a) northeastern China and (b) the Korea Peninsula.

<p>Whooper swan movements (2006–2007) and proximity to HPAI outbreak locations (2003–2007) affecting poultry (circles) and wild non-waterbirds (triangles) in (a) northeastern China and (b) the Korea Peninsula.</p

Map of the study area including satellite transmitter-marked whooper swan migratory routes.

<p>Map of the study area including satellite transmitter-marked whooper swan migratory routes.</p

Mallard_HA NA alignments Text_MEC-12-0355.R1

Mallard_HA NA alignments Text_MEC-12-0355.R

Mallard_metadata Text_MEC-12-0355.R1

Mallard_metadata Text_MEC-12-0355.R