Original 2016 paper [1]. After the last glacial maximum, wooly mammoths went extinct on mainland Asia and North America about 10 kya but mammoths survived longer on two isolated islands.

This paper explains the extinction of the penultimate population 5.6 kya on St. Paul Island, Alaska (once part of Beringia). The extinction was caused by drought* conditions.

I wonder if this drought was specific to the current interglacial period or whether it is a cyclic event that occurred in each of the recent 100-kyr interglacials.

[1] https://www.pnas.org/content/113/33/9310

* Edit: corrected mispelling, thanks richrichardsson