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. 2010 Dec 15;5(12):e14327. doi: 10.1371/journal.pone.0014327

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This is an open-access article distributed under the terms of the Creative Commons Public Domain declaration which stipulates that, once placed in the public domain, this work may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose.

This is an open-access article distributed under the terms of the Creative Commons Public Domain declaration, which stipulates that, once placed in the public domain, this work may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose.

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Each circle represents an ecoregion. The two numbers in each quadrant (defined by 0.1 on the y-axis and 0 on the x-axis) in each graph indicate the number of ecoregions in a quadrant under the country and regional scenarios. Change in undeveloped land area is a net measure because we assume abandoned cropland that does not convert to urban area becomes undeveloped land. Data on an ecoregion's fraction of critically endangered and endangered species comes from [75].