William Brogan wrote: " However, other herbicides such as Atrazine are not very lethal to amphibians in concentrations that are likely to be observed in surface waters."

"Not very lethal" is not the name of the game. If a chemical causes them to become intersex and be otherwise messed up endocrinologically or neurologically, or by any other important sublethal effect, that's enough damage to affect the population. Killing non-target organisms is not the only way to severely damage them!!

1880's: "There's lots of good fish in the sea"   W.S. Gilbert
1990's:  Many fish stocks depleted due to overfishing, habitat loss,
         and pollution.
2000's:  Marine reserves, ecosystem restoration, and pollution reduction
         MAY help restore populations.

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   Judith S. Weis, Professor   Department of Biological Sciences
   Rutgers University, Newark NJ 07102  [email protected]
            Phone: 973 353-5387       FAX 973 353-5518

http://newarkbioweb.rutgers.edu/department/FacultyProfiles/weis.html

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