A range-wide reassessment found continued adult population and density declines of about 90% over three generations in four of the five G. agassizii recovery units.
Notes on verification
Matches USGS/IUCN Red List assessment (Berry et al. 2021) citing Allison and McLuckie 2018; corroborated by multiple secondary conservation documents, but original primary source not directly accessed. [tier=unverified indep_score=0.3 clusters=2 claim_tier=notable] [rescored 2026-09-15: curated origin-host map (PR #65); unclassified hosts no longer scored as aggregators]
Sources
- Gopherus agassizii - USGS Publications Warehouse (seed:environment_and_wildlife)
- https://tortoise-tracks.org/wp-content/uploads/2021/09/2021-Berry-et-al-IUCN-Red-List.pdf (corroboration)
- https://deserttortoise.org/wp-content/uploads/Desert-Tortoise-General-Conservation-Plan-and-EIS.8-31-2023.pdf (corroboration)