Study the effects of repeated harvest activities with an Anderson biobaler in natural willow rings around Saskatchewan prairie marshes, on the regeneration characteristics of willow and determine management tactics that increase the efficientcy of the system.

As part of the “Ecological main structure” the province of Gelderland strives to make the migration for ungulates possible on the Veluwe. Two wildlife crossings have been build, but are not yet operational because the fence around the National Park Hoge Veluwe is still in place. The fence will be lowered …