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Science 8 February 2002:
Vol. 295. no. 5557, pp. 981 - 983
DOI: 10.1126/science.1069824
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Perspectives

ECOLOGY:
Incredible Journeys

Keith A. Hobson

Tracking populations of migrating animals is laborious, particularly using traditional mark-and-recapture strategies. In his Perspective, Hobson details new work (Rubenstein et al.) that describes a method based on the distribution of 2H and 13C in the environment and in birds' feathers for tracking the migration patterns and intermixing of black-throated blue warbler populations.

The author is with the Canadian Wildlife Service, Saskatoon, Saskatchewan S7N 0X4, Canada. E-mail: keith.hobson{at}ec.gc.ca

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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Climate Sensitivity Uncertainty and the Need for Energy Without CO2 Emission.
K. Caldeira, A. K. Jain, and M. I. Hoffert (2003)
Science 299, 2052-2054
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