Kishida, W. & Wood, K.
Clark, M. & Bruegmann, M.
Frances, A. & Schatz, G.E.
Cyanea kolekoleensis is Critically Endangered (Possibly Extinct) because it has a population size of zero. The species was discovered in 1987 with a population size of approximately 15 mature individuals. The original population had an area of occurrence of 0.94 km2. The population size had decreased to seven individuals by the early 1990s, and only one individual was observed in 1998. The species has not been seen since 1998 despite many surveys.
The taxon has not been observed since 1998. When it was originally discovered in 1987, there were approximately 15 mature individuals in one subpopulation. By the early 1990s, the only known subpopulation was represented by seven mature individuals.
This species is listed as Endangered under the US Endangered Species Act (U.S. Fish and Wildlife Service 2010) and is also on the State of Hawaii's Endangered Species List. The one observed population occurred on private land and was not in a protected area. Conducting surveys in existing potential habitat is essential to determining whether this species is extant. Potential suitable habitat is difficult to access and potentially includes areas outside of the single location where it was originally collected. The potential suitable habitat is typically accessible only by helicopter, and requires permission from the private landowners. Storage and propagation for this species was attempted, but none of the plants survived (U.S. Fish and Wildlife Service 2010). Other research and conservation actions are dependent on rediscovery of the species.
IUCN. 2015. The IUCN Red List of Threatened Species. Version 2015-4. Available at: www.iucnredlist.org. (Accessed: 19 November 2015).
U.S. Fish and Wildlife Service (USFWS). 2010. Endangered and Threatened Wildlife and Plants; Determination of Endangered Status for 48 Species on Kauai and Designation of Critical Habitat; Final Rule. Federal Register 75(70): 18960-19165.
Kishida, W. & Wood, K. 2015. Cyanea kolekoleensis. The IUCN Red List of Threatened Species 2015: e.T80230419A80230474. . Downloaded on 23 February 2018.
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