bark beetle
bark beetle infestation
bark beetle surfaces
blueberries
blueberry
boulder
change
climate change
coniferous forest
development
dynamics
forest
forest development
forest dynamics
germany
hill
holiday
infestation
mountain
national park
natural
nature
nature conservation
plants
protected
protection
recreation area
rejuvenation
renewal
resin
resin foreland
rowan
skirt
spruce
strategy
the resin core zone
trails
tree population
tree species
trees
view
warming
wilderness