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发布时间:2024-09-13 02:48:34

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At picnics, ants are pests. But they have their uses. In industries such as mining, farming and forestry, they can help gauge the health of the environment by just crawling around and being antsy.
It has been recognized for decades that ants--which are highly sensitive to ecological change—can provide a near-percent barometer of the state of an ecosystem. Only certain species, for instance, will continue to thrive at a forest site that has been cleared of trees. (41) And still others will move in and take up residence.
By looking at which species populate a deforested area, scientists can determine how "stressed" the land is. (42) Ants are used simply because the>; are so common and comprise so many species.
Where mine sites are being restored, for example, some ant species will recolonize the stripped land more quickly than others. (43) Australian mining company Capricorn Coal Management has been successfully using an

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At picnics, ants are pests. But they have their uses. In industries such as mining, farming and forestry, they can help gauge the health of the environment by just crawling around and being antsy.
It has been recognized for decades that ants--which are highly sensitive to ecological change—can provide a near-percent barometer of the state of an ecosystem. Only certain species, for instance, will continue to thrive at a forest site that has been cleared of trees. (41) And still others will move in and take up residence.
By looking at which species populate a deforested area, scientists can determine how "stressed" the land is. (42) Ants are used simply because the>; are so common and comprise so many species.
Where mine sites are being restored, for example, some ant species will recolonize the stripped land more quickly than others. (43) Australian mining company Capricorn Coal Management has been successfully using an

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Scientists Say Plants Helped Ants Evolve

Ants evolved far earlier than (1) believed, as far back as 140 million to 168 million years ago -- and they have plants to (2) for their diversity, U.S. researchers reported on Thursday.
Researchers at Harvard University used a genetic clock to reconstruct the history of ants, and found that the ant family (3) arose more than 40 million years (4) than previously thought. The family did not diversify into different genera and species (5) flowering plants came (6) the scene, they said.
The study sheds light on one of the (7) important and numerous animals, which includes hundreds of (8) species.
"We (9) that ant diversification took off (10) 100 million years ago, along with the rise of flowering plants, the angiosperms," Naomi Pierce, a professor of biology who (1

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