This page last revised 23 August 2006 -- S.M.Gon III
TNC Action Sites
Maps & Figures
This rare bog community only occurs in the Maui Nui Stratification Unit.
The insular nature of the
Kaua‘i Unit – The islands of Kaua‘i and Ni‘ihau. Kaua‘i in particular is a hotbed of endemic biodiversity. The channel separating Kaua‘i from the rest of the archipelago is the widest, leaving the oldest high island most isolated and biologically distinct.
O‘ahu Unit – The
Hawai‘i Unit –
The large, geological youngest
It is fortuitous that the stratification units above also correspond with political (county level) units, so that overarching strategies need not require multijurisdictional agreements. With the exception of Maui Nui and Kaua‘i units, the stratification units also correspond with individual islands. The individual islands also form meaningful stratification subunits.
This shrubland of the silversword relative iliau (Wilkesia gymnoxiphium) is restricted to the Kaua'i Stratification Unit.
Map of Stratification Units:
Four stratification units reflect the biogeography of the islands: Older islands (Kaua`i and O`ahu are botanically rich, while the Maui Nui cluster share similar age and biology. The youngest and largest Island of Hawai`i is also biologically distinct.
Only the youngest, largest islands bear alpine zones, with snow during winter.
Target distribution within the
stratification units above is not even. For example only the islands of
For example, although
occurrences of the Lowland Wet Ecological System occur on six of the eight islands, on only
three (Kaua‘i, Maui and Hawai‘i) are there large,
exemplary occurrences that emerge as highest priority action sites for protection of
this conservation target.