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Researchers find proof of termites’ overseas migration
Staff writer, with CNA
Some termite species have a stronger-than-expected tolerance for salt water, Taiwanese and US researchers found in a study on the likelihood that the insects might have spread between continents on driftwood.
Although termites can only fly a few kilometers, they are found on all continents and many island, raising the question of how they spread, Chiu Chun-i (邱俊禕), a postdoctoral researcher at National Chung Hsing University and coauthor of the study, said in a news release on Monday.
The most widely accepted theory is that the insects spread on driftwood, but their tolerance for salty environments had not yet been tested, Chiu said.
Taiwan-U.S. study backs theory of termite spread via driftwood
03/02/2021 02:39 PM
Photo courtesy of National Chung Hsing University
Taipei, March 2 (CNA) Some species of termites have a strong ability to withstand saltwater, supporting the theory that they spread across oceans by drifting on wood, according to a study conducted by Taiwanese and American researchers.
Though termites can fly no more than a few kilometers, several termite species are found across continents and islands, raising the question of how they spread, Chiu Chun‐i (邱俊禕), the first author of the study, said in a press release on Monday.
Chiu, a postdoctoral researcher at National Chung Hsing University, said the most widely accepted theory has been that termites spread through driftwood, so he decided to test whether they could actually withstand the salinity levels in seawater.
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For years, Doug Tallamy sounded the alarm about the grave threat that plants introduced from abroad pose to native insects. By transforming native plant communities into so-called novel landscapes increasingly dominated by exotic species on which many insects cannot feed, the University of Delaware entomologist speculated, they imperil not only insects but also the birds and other animals that depend on insects for survival.
Not everyone has greeted the thesis with open arms. The effect of introduced plants on native biodiversity has been one of the most contentious issues in ecology, compared to gun control, abortion and other hot-button issues in contemporary American culture by Peter Del Tredici, senior research scientist at Harvard’s Arnold Arboretum. Over the past few decades, 19 leading ecologists, including Del Tredici, wrote in a 2011 commentary in the journal Nature, ‘non-native’ species have been vilified for driving beloved ‘na
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