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Density contours for tracked grey petrels from (a) Antipodes Island, and (b) Kerguelen Islands.

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posted on 2015-03-06, 10:10 authored by Leigh G. Torres, Philip J. H. Sutton, David R. Thompson, Karine Delord, Henri Weimerskirch, Paul M. Sagar, Erica Sommer, Ben J. Dilley, Peter G. Ryan, Richard A. Phillips

The 90% density contour (thick black line) is derived from all GLS locations during the non-breeding season (October to February) for each population. The 50% density contours were derived for each month of the non-breeding season for each population. Maps in Mercator projection, datum wgs84.