England's homogenised woods are bad for biodiversity

 作者:程嚏诋     |      日期:2019-03-08 04:06:14
SOME English woodland is losing biodiversity, even though most individual woods contain just as many species as before. Comparing the plants in the woods of Dorset, in south-west England, with plants in the same woods 70 years ago, Sally Keith of nearby Bournemouth University and her colleagues found that they are suffering from “taxonomic homogenisation”. Keith visited 65 woods that had been surveyed in detail during the 1930s, plus another 21 woods adjacent to sites that had been wooded 70 years ago. She found that, on average,