Effective global conservation strategies - Reply

Grenyer, Richard, Orme, C. David L., Davies, T. Jonathan, Jackson, Sarah F., Davies, Richard G., Olson, Valerie A., Jones, Kate E., Gaston, Kevin J., Blackburn, Tim M., Thomas, Gavin H., and others. (2007) Effective global conservation strategies - Reply. Nature, 450 (7171). E20-E20. ISSN 0028-0836. (doi:10.1038/nature06375) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

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http://dx.doi.org/10.1038/nature06375

Abstract

Rodrigues1 criticizes our demonstration2 of low congruence in the global distributions of rare and threatened vertebrates on the grounds that we excluded locations where species counts were zero from our analyses. In practice, this makes no substantive difference to our conclusions. Some sample locations are not inhabited by any organisms of interest: such locations can inflate measures of covariation and association because their values for parameters of interest (in this case, zero counts of species) are identical. This bias has long been known (as ‘the double-zero problem’3); many ecological techniques and studies exclude double-zero data for this reason.

Item Type: Article
DOI/Identification number: 10.1038/nature06375
Additional information: ISI Document Delivery No.: 237RU Times Cited: 1 Cited Reference Count: 3 Grenyer, Richard Orme, C. David L. Davies, T. Jonathan Jackson, Sarah F. Davies, Richard G. Olson, Valerie A. Jones, Kate E. Gaston, Kevin J. Blackburn, Tim M. Thomas, Gavin H. Bennett, Peter M. Rasmussen, Pamela C. Ding, Tzung-Su Gittleman, John L. Owens, Ian P. F.
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
G Geography. Anthropology. Recreation > GN Anthropology
Divisions: Faculties > Social Sciences > School of Anthropology and Conservation > DICE (Durrell Institute of Conservation and Ecology)
Depositing User: C.G.W.G. van-de-Benderskum
Date Deposited: 02 Jul 2008 09:05 UTC
Last Modified: 19 Jun 2019 11:35 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/7511 (The current URI for this page, for reference purposes)
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