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Thu Jan 19, 2012, 02:34 PM

Inventory Lists 19,232 Newly Discovered Species During Latest Count

ScienceDaily (Jan. 18, 2012) More than half of the 19,232 species newly known to science in 2009, the most recent calendar year of compilation, were insects -- 9,738 or 50.6 percent -- according to the 2011 State of Observed Species (SOS) report released Jan. 18 by the International Institute for Species Exploration at Arizona State University.

The second largest group in the 2009 numbers was vascular plants, totaling 2,184 or 11.3 percent. Of the 19,232 in the total count, seven were birds, 41 were mammals and 1,487 were arachnids -- spiders and mites.
And, according to this latest report, there was a 5.6 percent increase in new living species discovered in 2009, compared to 2008.

The annual SOS report card on the status of human knowledge of Earth's species summarizes what is known about global flora and fauna. The 19,232 species described as "new" or newly discovered during calendar year 2009 represent about twice as many species as were known in the lifetime of Carolus Linnaeus, the Swedish botanist who initiated the modern system of plant and animal names and classifications more than 250 years ago, said the report's author, Quentin Wheeler, an ASU entomologist and founding director of the species institute.

"The cumulative knowledge of species since 1758 when Linnaeus was alive is nearly 2 million, but much remains to be done," Wheeler said. "A reasonable guess is that 10 million additional plant and animal species await discovery by scientists and amateur species explorers."

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http://www.sciencedaily.com/releases/2012/01/120118173248.htm

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