The 2011 IUCN assessment cited habitat loss of over 80% over three generations (defined as 90 years) for the desert tortoise, incorporating past reductions and predicted future declines.
Sources
- Gopherus agassizii - USGS Publications Warehouse (pubs.usgs.gov)
- https://tortoise-tracks.org/wp-content/uploads/2021/09/2021-Berry-et-al-IUCN-Red-List.pdf (tortoise-tracks.org)
- https://www.researchgate.net/publication/354795025_Gopherus_agassizii_The_IUCN_Red_List_of_Threatened_Species (researchgate.net)
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