Conservation status and management insights from tracking a cryptic and Critically Endangered species of Orchidaceae

A six-year demographic study of the Critically Endangered orchid Disa procera, known from just 50 individuals at a single location, reveals that its population is larger than previously thought and occurs across two distinct sites. The species exhibits high interannual variation in population size and individual turnover, suggesting a short lifespan, yet still meets the criteria for Critically Endangered status. Management insights include avoiding physical damage during its growing season (September–January) and implementing prescribed fire at 10–25-year intervals outside this period. High fruit set rates (68%) indicate no current pollination limitation, but patchy distribution hints at potential dispersal or recruitment constraints. Recommendations emphasize continued protection, monitoring, and further research on pollination, habitat requirements, and mycorrhizal associates.

Kraaij, T., Baard, J. A., & Crain, B. J. (2016). Conservation status and management insights from tracking a cryptic and Critically Endangered species of Orchidaceae. Oryx, 51(3), 441–450. https://doi.org/10.1017/s0030605316000272