Wednesday, 24th August 2011
How Many Species Are There on Earth and in the Ocean?
Source: PLoS Biology
From the abstract:
The diversity of life is one of the most striking aspects of our planet; hence knowing how many species inhabit Earth is among the most fundamental questions in science. Yet the answer to this question remains enigmatic, as efforts to sample the world's biodiversity to date have been limited and thus have precluded direct quantification of global species richness, and because indirect estimates rely on assumptions that have proven highly controversial. ... In spite of 250 years of taxonomic classification and over 1.2 million species already catalogued in a central database, our results suggest that some 86% of existing species on Earth and 91% of species in the ocean still await description. Renewed interest in further exploration and taxonomy is required if this significant gap in our knowledge of life on Earth is to be closed.
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Peggy Garvin, of Garvin Information Consulting, is the author of United States Government Internet Directory (Bernan Press) and Real World Research Skills, 2009 (TheCapitol.Net). In her 20 years in the information business, Peggy has managed electronic information products and services in a variety of environments, including commercial publishing, e-commerce, law firms, and the Congressional Research Service of the Library of Congress. Peggy's work has been recognized with the 2011 SLA Dow Jones Leadership Award. She has a Masters of Library Science degree from Syracuse University School of Information Studies.
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