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. 2011 Jan 20;6(1):e16133. doi: 10.1371/journal.pone.0016133

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Rosas Escobar et al.

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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The circles in the northwest of Baja California and southern California represent the known populations of C. forbesii; dark circles represent sampled populations. The square on Guadalupe Island represents the location of the only population of C. guadalupensis. (Inset) The spatial distribution of the C. guadalupensis forest on Guadalupe Island.