A study published in the journal Science reveals a decline in bee species since the late 1800s in West Central Illinois. The study could not have been conducted without the work of a 19th-century naturalist. The new article shows a considerable decline in the number of bee species in the Carlinville, Illinois area since earlier landmark studies.
Fuente : http://www.eurekalert.org/pub_releases/2013-03/uoi…
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