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. 2014 May 30;9(5):e98478. doi: 10.1371/journal.pone.0098478

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© 2014 Bhattarai, Cronin

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Annual growth rate (proportional change in ln area) of P. australis patches as a function of latitude in the coastal marshes of the United States. Filled and open symbols represent sites occupied by Eurasian and Gulf-Coast haplotypes respectively. Line is fit by least-squares regression (both haplotypes combined; R ² = 0.14, P = 0.20).