搜索结果: 1-1 共查到“森林保护学 grasshopper”相关记录1条 . 查询时间(0.046 秒)
![](http://www.firstlight.cn/upload/imgfile/20203/13/2020313142740317.jpg)
Striking 20-year grasshopper declines tied to quality of prairie grasses(图)
20-year grasshopper declines tied quality prairie grasses
font style='font-size:12px;'>
2020/3/13
A new study shows that grasshopper numbers have declined more than 30% in a Kansas grassland preserve over the past two decades. The results were published in the journal Proceedings of the Natio...