News tagged with invasive species

Ants follow Fermat's principle of least time

(Phys.org) —Ants have long been known to choose the shortest of several routes to a food source, but what happens when the shortest route is not the fastest? This situation can occur, for example, when ...

Apr 01, 2013 feature
4.8 / 5 (20) 22 | with audio podcast

New requirements for ballast water dumped by ships

(AP)—The Environmental Protection Agency has issued new requirements for cleansing ballast water dumped from ships, which scientists believe has brought invasive species to U.S. waters that damage ecosystems and cost the ...

Mar 29, 2013
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Invasive weeds could shed light on climate-coping

(Phys.org) —In the race to adapt to climate change, weeds may be the winners. Understanding their well-honed coping mechanisms could inform strategies for ecological management, says a Cornell crop and ...

Mar 13, 2013
5 / 5 (1) 0

Screening preferred to halt invasive species

(Phys.org) —Stakeholders interested in the environmental impacts of North America's horticultural industry would prefer a mandatory screening process—over other policy options, such as fees or taxes—to ...

Mar 06, 2013
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