[env-trinity] CBS July 21 2009

Byron Leydecker bwl3 at comcast.net
Tue Jul 21 17:22:58 PDT 2009

Jul 21, 2009 4:46 pm US/Pacific 

Study Finds Pesticides Travel, Kill Sierra Frogs

jpg  <http://cbs5.com/local/%20http:/cbs5.com/environment> Environment & The
Green Beat

FRESNO (CBS 5 / AP) ― 

09.jpgClick to enlarge 

1 of 1

Foothill Yellow-Legged Frog. 

·         Request Full Text From Environmental Toxicology and Chemistry

A new study shows frogs in the high Sierra are threatened by airborne
pesticides sprayed hundreds of miles away in the Central Valley.

Researchers at Southern <http://www.siu.edu/>  Illinois University and the
U.S. <http://www.usgs.gov/>  Geological Survey measured toxicity levels of
two pesticides, chlorpyrifos and endosulfan, to Pacific treefrogs and
foothill yellow-legged frogs. Both species native to the mountain meadows
have seen their populations decline.

The tadpoles developed abnormalities that could increase their vulnerability
to predators, flood and drought.

The report said that airborne pesticides catch easterly winds and fall
during rain and snow, then are spread by runoff.

The study was published in the August 2009 issue of Environmental Toxicology
and Chemistry
<http://www.setacjournals.org/perlserv/?request=index-html&ct=1> .


Byron Leydecker, JcT

Chair, Friends of Trinity River

PO Box 2327

Mill Valley, CA 94942-2327

415 383 4810 land

415 519 4810 cell

 <mailto:bwl3 at comcast.net> bwl3 at comcast.net

 <mailto:bleydecker at stanfordalumni.org> bleydecker at stanfordalumni.org

 <http://fotr.org/> http://www.fotr.org 




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