|Scientific Name:||Mezoneuron kavaiense (H.Mann) Hillebr.|
Caesalpinia kavaiensis H.Mann
Mezoneuron kauaiense (H.Mann) Hillebr. [orth. error]
|Red List Category & Criteria:||Critically Endangered D ver 3.1|
|Assessor(s):||Bruegmann, M. & Caraway, V.L.|
|Reviewer(s):||Maunder, M. & Pollock, C.M.|
Mezoneuron kavaiense is endemic to the islands of Hawai`i and O`ahu. Eight subpopulations are known, totaling 60 individuals, however, many of these are senescent and probably are non-reproductive. Threats include pigs, cattle, deer, goats, introduced plants, rats, fire, volcanic eruptions, sheep, black twig borer and collection by humans.
|Previously published Red List assessments:|
|Range Description:||Restricted to populations found in the Waianae Mts. on O`ahu, Hualalai on Hawai`i and on Lana`i. Subpopulations on Maui and Kaua`i are now apparently extinct.|
Native:United States (Hawaiian Is.)
|Range Map:||Click here to open the map viewer and explore range.|
|Population:||Currently fewer than 50 reproductive individuals are known.|
|Current Population Trend:||Decreasing|
|Habitat and Ecology:||Dry and moist forest.|
|Major Threat(s):||Various factors have contributed to the decline, from overexploitation and habitat clearance to damage caused by feral animals and invasive plants.|
|Conservation Actions:||The species is listed by the US Endangered Species Act.|
|Amended reason:||This assessment was originally published under the name Casalpinia kaviensis but it is now treated under Mezoneuron and the species epithet is updated to kaviense. The coded threats have also has also been updated to match the information under the Rationale.|
IUCN. 2003. 2003 IUCN Red List of Threatened Species. www.iucnredlist.org. Downloaded on 18 November 2003.
IUCN. 2017. The IUCN Red List of Threatened Species. Version 2017-3. Available at: www.iucnredlist.org. (Accessed: 7 December 2017).
Oldfield, S., Lusty, C. and MacKinven, A. (compilers). 1998. The World List of Threatened Trees. World Conservation Press, Cambridge, UK.
U.S. Fish and Wildlife Service. 2003. Rare plant database. Unpublished.
Wagner, W., Herbst, D. and Sohmer, S. 1990. Manual of the flowering plants of Hawaii. University of Hawaii Press, Bishop Museum Press, Honolulu.
Wagner, W., Herbst, D. and Sohmer S. 1999. Manual of the Flowering Plants of Hawaii. Bernice Pauahi Bishop Museum Special Publication 91: 1-1918.
|Citation:||Bruegmann, M. & Caraway, V.L. 2017. Mezoneuron kavaiense (amended version of 2003 assessment). The IUCN Red List of Threatened Species 2017: e.T33606A120745329.Downloaded on 22 May 2018.|
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