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. 2015 Dec 28;10(12):e0145496. doi: 10.1371/journal.pone.0145496

Fig 4. Spatial distribution and abundance of Greater Scaup Aythya marila–mean number of individuals per 1 km² based on censuses in the non-breeding period (October to April, 2002–2014), see also Table 2.

Fig 4

(A). Spatial distribution and biomass of Zebra Mussel Dreissena polymorpha on the 2x2 km modeling grid (B).