Back to search results

Daubenya zeyheri

Assessor: Sarah Schumann

Sensitive in 2010
No
Family
Hyacinthaceae
Reason for the sensitivity status
This genus is currently in demand and of popular interest in international horticultural trade. No particular South African species are known to be threatened by collection of wild individuals.
Exploitation extent
None - this species and its close relatives are not exploited, collected, traded or utilized in a targeted manner.
Justification and references

According to the SANBI Red List Assessment, this species is Vulnerable as it is range restricted with small subpopulations that is experiencing ongoing population decline due to habitat loss (Helme et al. 2010). This genus is currently in demand and of popular interest in international horticultural trade, as indicated by several online marketplace, e-commerce and auction sites. No particular South African species are known to be threatened by collection of wild individuals.

Helme, N.A., Raimondo, D. & von Staden, L. 2010. Daubenya zeyheri (Kunth) J.C.Manning & A.M.van der Merwe. National Assessment: Red List of South African Plants version 2020.1.

Population vulnerability
Population is not vulnerable: size is > 2500 mature individuals, AND the number of known subpopulations is > 5 AND range > 100km2
Justification and references

This taxon has an extent of occurrence of 207 km², is known from 10 subpopulations and has an estimated population size of 6 500 mature individuals (Helme et al. 2010).

Helme, N.A., Raimondo, D. & von Staden, L. 2010. Daubenya zeyheri (Kunth) J.C.Manning & A.M.van der Merwe. National Assessment: Red List of South African Plants version 2020.1.

Targeted demographics
Mature (breeding) and immature individuals are not killed, are not significantly weakened (the harvesting methods do not do harm), and are not permanently removed from the wild.
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

Small subpopulations and ongoing threat and decline via coastal development (Helme et al. 2010), makes this species vulnerable to population loss and if exploitation were to take place, recovery may be poor.

Helme, N.A., Raimondo, D. & von Staden, L. 2010. Daubenya zeyheri (Kunth) J.C.Manning & A.M.van der Merwe. National Assessment: Red List of South African Plants version 2020.1.

Reference file
Daubenya zeyheri Threatened Species Programme _ SANBI Red List of South African Plants.pdf767.06 KB
Daubenya aucfan.pdf1.28 MB