Tag Archives | invasive species

R9 million for waterweed research

By on January 14, 2011 in environmental issues, environmental problems, natural pest control, water conservation

The Rhodes Zoology and Entomology Department has been awarded a R9 million contract by the Working For Water (WFW) Programme of the Department of Water and Environment to continue its vital research into biological methods of controlling some of South Africa’s worst invasive waterweeds. South Africa loses nine percent of its precious water runoff to […]

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Can we save polar bears by moving them to Antarctica?

By on January 4, 2011 in environmental issues, environmental problems, global warming

Answered by polar bear scientist Scott Schliebe of the U.S. Fish & Wildlife Service. “Although it may seem an obvious solution, the risks outweigh the benefits.” Q. I am writing concerning the plight of polar bears due to sea-ice loss in the Arctic. It occurs to me that one possible way out, that I have […]

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What Triggers Mass Extinctions?

By on January 4, 2011 in environmental issues

Study Shows How Invasive Species Stop New Life An influx of invasive species can stop the dominant natural process of new species formation and trigger mass extinction events, according to research results published December 29 in the journal PLoS ONE. The study of the collapse of Earth’s marine life 378 to 375 million years ago […]

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