I play one character that lives in a place of high spawn rate inside logs and stumps. I can always check them and find new bugs, arrows, worms, webs... this is decently populated region, with lots of leantos and some claims...
Another character is traveling for a couple days and the logs and stomps are absolutely empty. It's an empty region, the few leantos are empty and no bases were seen...
Is it right to conclude that some regions are just better at spawn rates?