Conservation status of the endemic fern Mankyua chejuense (Ophioglossaceae) on Cheju Island, Republic of Korea

  • Chul H
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Abstract

Mankyua chejuense, a fern endemic to Cheju Island, Republic of Korea,
which lies 120 km south of the Korean Peninsula, appears to be
restricted to five extant subpopulations in the north-east of the
Island, with a total population of c. 1,300 individuals. Major threats
to the existence of the species include shifting cultivation,
plantation, overuse of basaltic rocks that are part of the species'
microhabitat, farming and pasturage, and the construction of roads and
golf courses in lowland areas. The information currently available for
the species indicates that it should be categorized as Critically
Endangered on the IUCN Red List. For conservation of the species it
needs to be included on the national threatened species list, and its
habitat designated as an ecological reserve. Intensive surveys are
required in order to establish whether there are any other extant
subpopulations of the species, and the presently known subpopulations
require long-term monitoring and continuous protection.

Author-supplied keywords

  • Cheju Island
  • Critically Endangered
  • Endemic
  • Fern
  • Mankyua chejuense
  • Ophioglossaceae
  • Republic of Korea

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Authors

  • Hwan Kim Chul

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