Global Warming, Endangered Species, - Page 2© Kenneth Friedman
Page 2
Sep 29, 2000
Pollen from corn genetically engineered to produce its own insecticide, Bt ( Bacillus thuringiensis), can kill monarch butterfly caterpillars, according to an Iowa State University study reported by Susan Milius in Science News in mid September. The caterpillar deaths from toxic pollen that drifts up to 10 meters from the field, supports findings from an earlier study that was criticized for concluding pollen was harmful based on laboratory studies that used leaves dusted with Bt corn pollen. Critics said the dusted leaves "didn't reflect natural levels." But "Other researchers have indications that wild monarch caterpillars may be able to avoid high concentrations of Bt," Milius writes.
In another article, Milius reports that "A mathematical simulation suggests that the proliferation of crops genetically modified to resist herbicides might mean the downfall of some seed-eating birds." In other words, the simulation suggests that if a farmer changes his crop to one that is herbicide-tolerant so he can use highly potent weed killers that require use only once or twice a season, then weed-seed eating birds (skylarks in this case) would no longer have that food source
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been exploring your topic and reading your articles. They are interesting and informative. I hope you will consider submitting this one, along with several others to the Nature's Treasures Event.
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Cause to Pause: Global Climate Changes
Earth Warms, Sea Rises
CONTENTS
Introduction
History
What Happens
Sea-Level Rises
Public Health and Wildlife Affected
Good News
New Technologies
The
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In response to message posted by maples:
I need more information on which article Tim is talking about. I "process" so much info durin
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Kenneth. In your article regarding government wildlife management as compared to private management you leave me wondering about who funded the study and begging for more specific examples. Tim King
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