International Union for Conservation of Nature (IUCN) Red List Assessment, Temminck's red colobus (Piliocolobus badius temminckii), 2020

Piliocolobus badius temminckii populations are patchily distributed and most are small, isolated and in decline. The loss of 22% of the total habitat of this taxon combined with unsustainable levels of hunting and reports of extirpation at some locations have caused a decline suspected to exceed 50% of the population over the last 30 years (three generations for this taxon). The demand for natural resources has increased with the doubling of the human population in the four range countries since 1990. Bushmeat trade estimates strongly suggest unsustainable levels of exploitation that, if not controlled, could lead to further extirpations (Minhós, Wallace et al. 2013). Therefore, this subspecies is listed as Endangered under criterion A2bcd.