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Hundreds of threatened species not on official US list
Date:12/12/2011

Environment Institute and School of Earth & Environmental Sciences.

"Vague definitions of 'endangered' and 'threatened' and the existence of a 'warranted but precluded' category on the ESA list are also contributing to the gap in species classification," he says.

Mr Harris says a detailed evaluation of the ESA's coverage of the IUCN Red List was "well overdue".

"The ESA is a powerful environmental law but its impact is limited. With many species being overlooked, this does not bode well for the ESA's ability to mitigate species decline before they become critically imperilled.

"The IUCN Red List is imperfect, but it is the leading global threatened species list. It involves collaboration of many scientists, and regular refinement of its categories and criteria," Mr Harris says.

The study was conducted in collaboration with the University of California, Santa Cruz, the National University of Singapore and the University of Gttingen, Germany.


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Contact: Bert Harris
bert.harris@adelaide.edu.au
61-883-035-254
University of Adelaide
Source:Eurekalert  

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