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This page last revised 31 August 2006 -- S.M.Gon III
TNC Action Sites
Maps & Figures
Montane bogs on the flat summit of Pu‘u Eke, West Maui Mountains.
The remote and rugged habitat of West Maui is refuge for rare endemic plants and animals.
The highly-eroded West Maui Mountains boast spectacular wet cliff ecosystems.
Non-nativepigs, escaped into the wild, pose a threat to native ecosystems, butare also a local food source.
Anuntold number of native invertebrates, such as this endemic tree snail, are nested within West Maui native ecosystems.
WestMaui Conservation Area Profile
West Maui silverswords (Argyroxiphium calignis) near ‘Eke Crater(back).
Ecological Systems: Five ecological systems of West Maui were selected as conservationtargets, each bearing nested natural communities and species (discussedbelow).
Lowland Dry Systems havePOOR viability and are not included..
Selected streamoccurrences: Maui bears manyhigh quality streams, and the four streams selected: Hanawī,Honokōhau, Kahakuloa, and ‘Ōhe‘o, areamong thelargest and highest quality streams on the island (Hawai‘i StreamAssessment 1991). Eachbears a rich complement of native macrofauna and high volume, highqualitywater in a channel with high structural heterogeneity.
Special Ecological Features:
West Maui is part of the Maui Nui Waterbird Concentration, defined as three core wetlands and at least five of seven supporting wetland sites identified by the USFWSWaterbird Recovery Plan (2005). These include coastal and lowlandsites outside of the ecological system targets.Nested Targets(Selected examples):
‘Ōhi‘a/Mixed Shrub Montane
‘Ōhi‘a Mixed Lowland Mesic
Lama Lowland Mesic
Hawaiian Montane Bog
Mixed Fern/Shrub Wet Cliff Community
Mixed Shrub Dry Cliff Community
Montane Piping Cave Community
There are manyconstituent native species that comprise the natural communities of theConservationArea. Highlights include 12 rare/endangered plant species, over 150 endemicflowering plant species, and an untold number of endemic invertebratespecies likelynumbering in the thousands.MajorThreats:Uncontrolledferal ungulates (primarily pigs, goats,deer); a variety ofinvasivealien plants, and wildfire at lower dry and mesic settings.
| Thenative-dominated ecological systems of West Maui occupy itsremote, extremely rugged, and largely trackless central region,extending downward into areas (pink) converted into anthropogenicandalien-dominated regions. || |
The conservationportfolio for West Maui includes the majority of the native dominatedecological systems (dark green) and two occurrences of the Hawaiian continuous perennialstream natural community (Honokōhau and Kahakuloa) shown in light blue.
|A crosssection of the Island of Maui indicates the variety of moistureand elevation conditions present: Alpine and subalpine summit areas areflanked by wet, mesic, and dry montane, lowland, and coastal/marine systems.|