Bark beetles in lodgepole pine used to be more selective, leaving the younger and healthier trees alone.
海滩松上的树皮甲虫会有选择性地寄居在松树上，避开年轻健康的松树。
2
The first is that jack pines occur in patchier stands than the continuous swaths of lodgepole on the west coast.
首先，相对于海滩松在西海岸的连续分布，短叶松仅呈零散的块状分布。
3
The cold air sweetened, banded pebbles and crumbs of soil cast sudden pencil-long shadows and the rearing lodgepole pines below them massed in slabs of somber malachite.