Reason for the sensitivity status
This species is known to be threatened by harvesting of wild individuals. A vulnerable population size with existing threat of harvesting, places the persistence of this species at risk. Recruitment and recovery may be poor. Releasing data on this species could exacerbate threat and vulnerability.
This species is extremely rare in the wild and is known to be exploited, utilised or traded. The localities of remaining populations need to be protected to avoid any further exploitation, which is likely to drive it to extinction.
Exploitation extent
Significant - wild individuals of the species are known to be exploited, collected, traded or utilized in a targeted manner, and utilisation is widespread, affects the majority of wild populations and/or is causing rapid decline of the wild population.
Justification and references
According to the SANBI Red List Assessment, this species is Critically Endangered as it is thought to occur at one remaining location due to habitat transformation and is currently threatened by harvesting of wild individuals (Victor et al. 2007).
Victor, J.E., Krynauw, S., Hurter, P.J.H. & von Staden, L. 2007. Oberonia disticha (Lam.) Schltr. 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 95 km² and is known from one location (Victor et al. 2007).
Victor, J.E., Krynauw, S., Hurter, P.J.H. & von Staden, L. 2007. Oberonia disticha (Lam.) Schltr. National Assessment: Red List of South African Plants version 2020.1.
Targeted demographics
Mature (breeding) individuals are killed, significantly weakened or are permanently removed from the wild, OR immature individuals are targeted and this significantly impacts mature (breeding) individuals.
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
One remaining location with existing threat of harvesting (Victor et al. 2007), places the persistence of this species at risk. Recruitment and recovery may be poor.
Victor, J.E., Krynauw, S., Hurter, P.J.H. & von Staden, L. 2007. Oberonia disticha (Lam.) Schltr. National Assessment: Red List of South African Plants version 2020.1.
