Research NewsEcology

Fingering a Genetic Bottleneck

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Science  29 Aug 1997:
Vol. 277, Issue 5330, pp. 1205
DOI: 10.1126/science.277.5330.1205b

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ALBUQUERQUE, NEW MEXICO-- Biologists can't always agree when an endangered species has lost genetic richness as its population declined. But a group of researchers directly documented loss of genetic diversity in an imperiled species--greater prairie chickens in Illinois--by comparing DNA from decades-old museum specimens with that of prairie chickens today.