Aloe bowiea | SANBI Sensitive Species

Assessor: Sarah Schumann

Sensitive in 2010

Yes

Family

Asphodelaceae

Reason for the sensitivity status

Aloe species are widely utilised for traditional and medicinal purposes and are also popular in domestic and international horticulture trade. Plants of this genus were among those targeted and confiscated during criminal prosecutions of illegal plant collecting. A small remaining population size with existing threats causing population decline makes this species vulnerable to further population loss. Were exploitation to also occur, recruitment and recovery may be poor. Releasing data on this species could exacerbate threat and vulnerability.

This species is either similar to or belongs to a group containing sensitive species, and is extremely rare in the wild. The localities of wild populations need to be protected to avoid loss to exploitation, which, due to its rarity, could drive the species to extinction within a very short time.

Exploitation extent

Uncertain - No data exists yet showing that this species is exploited in the wild, however it has one or more relatives or look-alike species (found in South Africa or globally) that are known to be utilised. This species has a similar life form or other relevant traits to its exploited relative(s), making it highly likely that it would be exploited for the same purposes.

Justification and references

According to the SANBI Red List Assessment, this species is Endangered as it is a range restricted endemic threatened by habitat loss and degradation (von Staden et al. 2019). Aloe species are widely utilised for traditional and medicinal purposes and are also popular in domestic and international horticulture trade (Grace, 2011). Many wild aloe species are threatened by over-exploitation for the succulent plant trade as well as over-utilisation for cosmetics and natural products which makes rare, endemic and utility taxa conservation priority (Grace, 2011). There has been several recorded confiscations of the genus from illegal collection (Confiscation Lists (2018-2021) provided by Cape Nature, SANBI Karoo Desert Botanical Garden and Kirstenbosch Botanical Garden). It is believed that the most sought after and so potentially vulnerable species among plant collectors, are rare endemics and difficult to grow species (Cousins & Witkowski, 2012).

von Staden, L., Zikishe, V. & Strydom, L. 2019. Aloe bowiea Schult. & J.H.Schult. National Assessment: Red List of South African Plants version 2020.1.

Population vulnerability

Population is vulnerable: size is <= 2500 mature individuals OR the number of known subpopulations is <= 5 OR range is <= 100km² OR species at risk of localised extinctions

Justification and references

This taxon has an extent of occurrence of 23-548 km² and an area of occupancy of 20-24 km² with several thousand individuals that has seen a reduction of 80% due to habitat loss and degradation (von Staden et al. 2019).

von Staden, L., Zikishe, V. & Strydom, L. 2019. Aloe bowiea Schult. & J.H.Schult. National Assessment: Red List of South African Plants version 2020.1.

Targeted demographics

Unknown.

Regeneration potential

This species has a slow population growth rate, or the growth rate varies depending on habitat, and there is a poor chance the wild populations will recover from exploitation OR a collector might feasibly harvest the entire extant population removing the chance of subsequent recruitment.

Justification and references

Range restriction makes this species vulnerable to population loss and a small population may result in insufficient levels of recruitment if exploited.

Reference file

von Staden et al. 2019 Aloe bowiea Threatened Species Programme _ SANBI Red List of South African Plants.pdf874.74 KB

aloe _ eBay.pdf643.68 KB

Aloe Aucfan.pdf468.22 KB