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. 2017 Jun 8;9(4):plx026. doi: 10.1093/aobpla/plx026

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© The Authors 2017. Published by Oxford University Press on behalf of the Annals of Botany Company.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 7. — NMDS of the understory vegetation layer in May and July 2009 and 2012 in open and fenced plots at 12 sites at West Point NY (N = 10 permanent monitoring quadrats per plot). Numbers indicate study sites. Black and red numbers indicate sampling year (2009 and 2012, respectively) and circled numbers represent fenced plots. Earthworm density, a categorical factor indicating low (L) or high (H) earthworm density is represented by its compositional centroid. Points are jittered to allow visualization.