Read this years ago (From 50's or 60's?) in Analog about a fortified compound/outpost on an alien world where the humans were in an escalating (and failing) arms race agains the local animal/insect population. The natives became more deadly as the humans tried to develop better defenses. One member of the outpost crashes in another area of the planet, expecting instant death, but finds the locals there non-threatening as they were only reacting to the violence of the outpost. Looking for title and author.
Are you sure it was a short story? Deathworld by Harry Harrison matches your description, but it's a novel.