Letters

This Week's Letters

+ See all authors and affiliations

Science  22 Feb 2008:
Vol. 319, Issue 5866, pp. 1039
DOI: 10.1126/science.319.5866.1039a

The Legitimacy of Genetic Ancestry Tests

Tony Frudakis; Response Deborah A. Bolnick, Duana Fullwiley, Jonathan Marks, Susan M. Reverby, Jonathan Kahn, Kimberly Tallbear, Jenny Reardon, Richard S. Cooper, Troy Duster, Joan H. Fujimura, Jay S. Kaufman, Ann Morning, Alondra Nelson, Pilar Ossorio

Soil Erosion: A Carbon Sink or Source?

Rattan Lal and David Pimentel; Response Kristof Van Oost, Johan Six, Gerard Govers, Tim Quine, S. De Gryze

Corrections and Clarifications

Technical Comment Abstracts

Technical Comment Abstracts

COMMENT ON ““International Conservation Policy Delivers Benefits for Birds in Europe”

Rolando Rodríguez-Muñoz, Alfredo F. Ojanguren, Tom Tregenza

Abstract: Donald et al. (Reports, 10 August 2007, p. 810) assessed the impact of the European Union's Birds Directive, a conservation policy enacted in 1979, and reported evidence for positive population changes in targeted species. We argue that their conclusions are overstatements based on unsuitable data and inappropriate analyses. Full text at www.sciencemag.org/cgi/content/full/319/5866/1042b

RESPONSE TO COMMENT ON “International Conservation Policy Delivers Benefits for Birds in Europe”

Paul F. Donald, Fiona J. Sanderson, Ian J. Burfield, Stijn M. Bierman, Richard D. Gregory, Zoltan Waliczky

Abstract: Rodríguez-Muñoz et al. raise concerns about our study on the effectiveness of the European Union's Birds Directive, based on the provenance of the trend data used and on the predictions that were tested. Here, we show that our based on the provenance of the trend data used and on the predictions that were tested. Here, we show that our methods stem largely from misunderstandings of the original paper. Full text at www.sciencemag.org/cgi/content/full/319/5866/1042c

Navigate This Article