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Diversity of Holocene life forms in fossil glacier ice

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E. Willerslev, Anders J. Hansen, B. Christensen, J. P. Steffensen, P. Arctander

Studies of biotic remains of polar ice caps have been limited to morphological identification of plant pollen and spores. By using sensitive molecular techniques, we now demonstrate a much greater range of detectable organisms; from 2000- and 4000-year-old ice-core samples, we obtained and characterized 120 clones that represent at least 57 distinct taxa and reveal a diversity of fungi, plants, algae, and protists. The organisms derive from distant sources as well as from the local arctic environment. Our results suggest that additional taxa may soon be readily identified, providing a plank for future studies of deep ice cores and yielding valuable information about ancient communities and their change over time.
Udgivelsesdato: 1999 Jul 6
OriginalsprogEngelsk
TidsskriftProceedings of the National Academy of Science of the United States of America
Vol/bind96
Udgave nummer14
Sider (fra-til)8017-21
ISSN0027-8424
StatusUdgivet - 1999

Bibliografisk note

214RV Times Cited:51 Cited References Count:27

ID: 14152641