Technical Comments

Response to Comment on "Roadless Space of the Conterminous United States"

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Science  23 Nov 2007:
Vol. 318, Issue 5854, pp. 1240
DOI: 10.1126/science.1145424

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Girvetz et al. criticize our work and the value of the roadless volume (RV) metric, basing their arguments on the artificial imposition of wildlife habitat connectivity as the context. We counter that in our intended contexts, both practical and geographic theoretical considerations make RV an appropriate measure of the space between roads.

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