Hawaiian tropical dry forests

Coordinates: 21°N 157°W / 21°N 157°W / 21; -157
Source: Wikipedia, the free encyclopedia.
Hawaiian tropical dry forests
Hot semi-arid (BSh) and tropical savanna (Aw)
Conservation statusCritical/Endangered[2]
Global 200Yes[3]

Hawaiian tropical dry forests are a

Kahoʻolawe. These forests are either seasonal or sclerophyllous.[2] Annual rainfall is less than 127 cm (50 in) and may be as low as 25 cm (9.8 in).[4] The rainy season there lasts from November to March.[5]

Dominant tree species include koa (

Caesalpinia kavaiensis), and Gouania spp. The palila (Loxioides bailleui), a Hawaiian honeycreeper, is restricted to this habitat type.[2]

Prehistoric dry forests

The forests' plant composition changed following the arrival of Polynesians, even excluding the deliberate introduction of non-native species.[5] Fossilized pollen has shown that loulu forests with an understory of Ka palupalu o Kanaloa (Kanaloa kahoolawensis) and ʻaʻaliʻi (Dodonaea viscosa) existed on the islands' leeward lowlands[6] from at least before 1210 B.C. until 1565 A.D. Populations of loulu and ʻaʻaliʻi remain in diminished form, while only two Ka palupalu o Kanaloa specimens have ever been seen in the wild.[7]


Auwahi Dryland Forest


Haleakala on the island of Maui.[8]

See also


  1. ^ "Hawaii Tropical Dry Forests". Bioimages. Vanderbilt University. Retrieved 2011-11-19.
  2. ^ a b c "Hawaii tropical dry forests". Terrestrial Ecoregions. World Wildlife Fund. Retrieved 2011-11-19.
  3. JSTOR 3298564
  4. ^ World Wildlife Fund, ed. (2001). "Hawaii tropical dry forests". WildWorld Ecoregion Profile. National Geographic Society. Archived from the original on 2010-03-08. Retrieved 2009-02-15.
  5. ^ a b "The Hawaiian Islands". Tropical Dry Forests of the Pacific. University of California, Los Angeles. Archived from the original on 2009-12-24. Retrieved 2009-02-15.
  6. S2CID 40057425
  7. ^ Bohm, Bruce A. "Rare Delights in Hawaiʻi". Floridata. Archived from the original on 2008-12-20. Retrieved 2009-02-15.
  8. ^ PARSONS, ROB (2007-04-12). "Maui Koa". Maui Time. Retrieved 2018-02-13.

External links