Map reloading

I thought that map reloaded when it was inactive for 20-30 minutes. Last night i left two dead beavers outside my base ( not on claimed land ) and when i woke up this morning the two beavers are still there. When i was hunting last week i found a few dead deer and beaver and thought someone was hunting around my base but after this i beleive they are ones that i killed and the map just never reloaded.
Also what is going on with my nut trees never getting any more nuts.
Also what is going on with my nut trees never getting any more nuts.