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Science 30 August 2002: Vol. 297. no. 5586, pp. 1510 - 1514 DOI: 10.1126/science.1071987
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Review
Environmental Change and Antarctic Seabird Populations
J. P. Croxall,*
P. N. Trathan,
E. J. Murphy
Recent changes in Antarctic seabird populations
may reflect direct and indirect responses to regional climate change.
The best long-term data for high-latitude Antarctic seabirds
(Adélie and Emperor penguins and snow petrels) indicate that
winter sea-ice has a profound influence. However, some effects are
inconsistent between species and areas, some in opposite directions at
different stages of breeding and life cycles, and others remain
paradoxical. The combination of recent harvest driven changes and those
caused by global warming may produce rapid shifts rather than gradual changes.
British Antarctic Survey, Natural Environment Research Council,
High Cross, Madingley Road, Cambridge CB3 0ET, UK.
*
To whom correspondence should be addressed. E-mail:
j.croxall{at}bas.ac.uk
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