Nihoa
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| Nihoa Island Archeological District | |
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| (U.S. Registered Historic District) | |
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| Nearest city: | Kauai, HI |
| Added to NRHP: | June 13, 1988 |
| NRHP Reference#: | 88000640 [1] |
| Governing body: | United States Fish and Wildlife Service |
Nihoa (also known as Bird Island or Moku Manu) is a small island in the Northwestern Hawaiian Islands located 120 miles (190 km) northwest of the island of Niihau and 280 miles (450 km) northwest of Honolulu. Nihoa is composed of 173.234 acres (701,050 m²) of dry land, surrounded by 140,554 acres (568.80 km²) of coral reef.
Captain William Douglas, the second Western explorer to find Nihoa, describes it as "[bearing] the form of a saddle, high at each end, and low in the middle. To the south, it is covered with verdure; but on the north, west, and east sides it is a barren rock, perpendicularly steep..." (Rauzon 8). Its jagged nature gives the island its name, Nihoa, which means "tooth" in the Hawaiian language. Nihoa is the tallest of the Northwestern Hawaiian Islands, with two peaks, 895 feet (273 m) Miller's Peak in the west, and 852 feet (260 m) Tanager Peak in the east. Visitors to Nihoa (as with almost all of the Northwestern Hawaiian Islands) require a USFWS-issued special-use permit to land on the island so as to reduce the risk of introducing alien species to Nihoa's already fragile ecosystem.
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[edit] Geology
Nihoa is 7.2 million years old, and was once a large island before erosion wore it down to its current size. Six valleys slant down from north to south, meeting at the south side of the island: West Valley, West Palm Valley, Miller Valley, Middle Valley, East Palm Valley, and East Valley. Several interesting features occur on Nihoa. Dog's Head Peak (358 ft/109 m) is named for its likeness. Pinnacle Peak (626 ft/191 m) is a volcanic dike created when less resilient rock was eroded away and harder rock was open to the elements. The only flat area on the island is called Albatross Plateau, just below Miller's Peak. The Devil's Slide is a particularly impressive geological feature, a narrow cleft descending 700 feet (210 m) irrespective of the surrounding elevation. Extending northward from Albatross Plateau, it ends at the vertical cliffs with an 190 feet (60 m) drop straight down to the ocean below. In this chasm, rare ferns grow, along with several endemic species, including a giant cricket.
[edit] Ecology
Nihoa is a sanctuary for endemic species. Some include:
- Pritchardia remota fan palm, the only tree on the island
- Nihoa Millerbird
- Nihoa Finch
- Nihoa Conehead Katydid
- Nihoa Carnation
- Sesbania tomentosa
- the amaranth Amaranthus brownii
- the trapdoor spider Nihoa mahina
- Thaumatogryllus conantae, a giant cricket found in the Devil's Slide area
- species of Achatinella, genus of tree snail
- Plagithmysus nihoae, a long-horned beetle
- Eupelmus nihoaensis, a wasp
- Hylaeus perkinsiana, Perkin's yellow-faced bee
- many others
Because of Nihoa's small size, most of its endemic organisms are endangered, as one single disaster such as an island-wide fire or an introduction of invasive species could wipe out the whole population. One such invasive species is grasshoppers; from the period between 1999 and 2003, grasshoppers devastated much of the vegetation on the island and posed a real threat to the continued health of plants on Nihoa (Liittschwager, 94). The following year, the numbers decreased and the vegetation became lush again. The grasshoppers probably came to Nihoa by way of wind from Kauai.
[edit] Prehistoric human habitation
Nihoa was well known to the early Hawaiians. Archaeological expeditions found extensive prehistoric agricultural terraces and house sites. [2] There is some doubt as to how many people lived on Nihoa, because while the large terraces built suggest that a large number lived there, there is scant fresh water to be found. It is thought that Nihoa may have been used for religious purposes only. Because of the island's importance, the island was added to the National Register of Historic Places in 1988, and subsequently became part of Papahānaumokuākea Marine National Monument in June of 2006.
[edit] Early exploration
The first Westerner to discover Nihoa was Captain James Colnett of the Prince of Wales, on March 21, 1788. As he was later captured by the Spanish and went mad in prison, the discovery was once widely accredited to Captain William Douglas of the Iphigenia, who sighted Nihoa almost a year later.[3]
By the end of the 18th century, Nihoa had been forgotten by most Hawaiians. In 1822, Queen Kaahumanu and her husband King Kaumualii traveled with Captain William Sumner to find Nihoa, as her generation had only known the island through songs and myths.[2] Later, King Kamehameha IV sailed there to officially annex the island as part of the Kingdom. Finally, in 1885, Princess Liliuokalani made a pilgrimage to Nihoa with her escorts, but their luncheon was cut short when one of the party set off a brush fire by accident. The group tried to flee the island, but the rising tides made it difficult and several boats were flooded, destroying some of the photographs taken.[4]
[edit] See also
[edit] Notes
- ^ National Register Information System. National Register of Historic Places. National Park Service (2007-01-23).
- ^ a b Tava 1998, p. 102-103.
- ^ Rauzon 2001, p. 8.
- ^ Rauzon 2001, p. 12.
[edit] References
- Tava, Rerioterai & Keale Sr., Moses K. (1998), Niihau, the traditions of a Hawaiian island, Mutual Publishing.
- Nihoa Island: Block 1000, Census Tract 114.98, Honolulu County, Hawaii United States Census Bureau
- Endangered Species of Hawaii
- N. Evenhuis and L. Eldredge, Natural History of Nihoa and Necker Islands, Bishop Museum Press, Honolulu, 2004.
- Rauzon, M. (2001), Isles of Refuge: Wildlife and History of the Northwestern Hawaiian Islands, University of Hawaii Press, ISBN 0-8248-2209-9.
- Liittschwager, David & Middleton, Susan (2005), Archipelago: Portraits of Life in the World's Most Remote Sanctuary, National Geographic, ISBN 0-7922-4188-6.
- "The Adventures of Nihoa Jones"
[edit] Further reading
- Clapp, R. B., E. Kridler and R. R. Fleet. (1977) "The natural history of Nihoa Island, Northwestern Hawaiian Islands". Atoll Research Bull. 207: 1-147.
[edit] External links
- Nihoa Island (with pictures & a map)
- Nihoa Island
- Quick Facts on Nihoa Island from the PBS Ocean Adventures site
- Amaranthus brownii as an endagered species
- Pictures
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