Extirpate:
to remove or destroy something completely [Cambridge Dictionary]
Noted in “Where Might We Find Ecologically Intact Communities?” Andrew J. Plumptre, et al, frontiers in Forests and Global Change:
Figure 4. Changes in percentage of ecoregions in biomes selecting first areas of HF ≤ 4; then removing areas where species have been extirpated and finally removing areas where species are at low density. Results are presented for ecoregions with minimum polygon of 10,000 km2.
According to my browser, there were at least fifty uses of various forms of the word extirpate.
