I grew up in a house whose yard was filled with oak trees ... I'm pretty convinced they survive due to the stupidity of squirrels rather than "overwhelming" these predators. There were oftens way more acorns than needed, but every year the squirrels would work furiously to bury them ... then promptly forget where they put them. So the squirrel population was held in check by the number of acorns they could find the rest of the year and the acorns had the advantage of being buried (versus germinating on the surface).
