Although the alpine zone has been harder for invasives to access than most places, human structures like trails are often an easy gateway for the invaders to get up there. Picture from Abisko, Swedish Lapland.
Although the alpine zone has been harder for invasives to access than most places, human structures like trails are often an easy gateway for the invaders to get up there. Picture from Abisko, Swedish Lapland.
The 3D lab 
