Mauna Kea

Intro

Flora and Fauna

Mauna Kea can generally be divided into to ecosystems; the subalpine ecosystem, which is at 5600 ft (1706.88 m) to 9500 ft (2895.6 m), and te alpine ecosystem, which is occurs above 9500 ft (2895.6 m). Hale Pōhaku occurs in the upper reaches of the subalpine ecosystem, while the Mauna Kea Science Reserve occurs in the alpine ecosystem.

Subalpine Flora and Fauna (Hale Pōhaku and Access Road)

The subalpine pant life consists of māmane forests and understory plants including; alpine hairgrass, pili uka, `āheahea, pūkiawe, nohoanu, kalamoho, `iwa`iwa, olali`i, littleleaf stenogyne, and mā`ohi`ohi. Hawai`i catchfly, a threatened species under the Endangered Species Act (ESA), has been observed there as well. Invasive weeds such as grasses and common mullein also inhabit the area and appear to be increasing in abundance.

Māmane forests once ranged from sea level on the leeward side of Mauna Kea up to the tree line, however they have been pushed back, and greatly decreased due to habitat alteration, and invasive plant and animal species that inhibit the growth of Māmane trees.

The subalpine animal life consists of a wide variety of native arthropods (insects, spiders), palila, `amakihi, `apapane, `elepaio, `kiapola`au, `i`iwi, as well as many species of non-native birds and mammals (e.g. cats, rats, barn owls, and mongoose).

Alpine Flora and Fauna (Mauna Kea Science Reserve)

Alpine plant and animal communities on Mauna Kea begin just above the treeline, at approximately 9500 ft (2895.6 m), and rise to the summit of the mountain at 13796 ft (4205.02 m). The alpine communities can be divided in shrublands, grasslands, and desert, though they all can be described as barren, and no clear line exists between any of the groups.

Alpine Shrublands and Grasslands

Alpine shrublands are inhabited mainly by pūkiawe, ōhelo, Mauna Kea dubautia, Hawaiian bentgrass, pili uka, Douglas' bladderfern, kalamoho, `olali`i, `iwa`iwa. Now rare, historically common species included `āhinahina (Mauna Kea Silversword), lava dubautia, `ōhelo papa (Hawaiian strawberry), `ena `ena, nohoanu and alpine tetramolopium. Non-Native invasive species include hairy cat's ear, sheep sorrel, common mullein, and fireweed.

Relatively few animals have been documented to frequent this region.

Mauna Kea Summit – Alpine Stone Desert

The plant community at the summit consists of mosses, lichens, and algae, and a limited number of vascular plants, predominantly the same species found in the alpine shrublands and grasslands.

Lichens and mosses have the most diversity of any of the plant life found at the summit. A survey of the summit found 21 species of lichens, plus five possible others. Around half of the lichen species found on Mauna Kea are endemic (found only in Hawai`i), two of which (Pseudephebe pubescens and Umbilicaria pacifica) are limited to Mauna Kea alone. Mosses occur where water availability is more consistent, such as under overhanging rocks and in shaded crevices or caves where snow melts slowly. A survey identified approximately 12 species most of which are indigenous to the Hawaiian Islands.

The animal community at the summit consists almost completely of arthropods. The arthropod community on the summit is highly unusual in that it is mostly made up of predators and scavengers, and there are very few species that rely on plants as their sole food source. Surveys conclude that 21 resident species, and 14 species of undetermined origin have been observed in this region.

Cultural Significance

A Sacred Spiritual Burial Ground

According to traditional accounts, Pu`u Lilinoe, named for the goddess of mists and Lilinoe, was buried in a cave near the summit of Mauna Kea. Aside from this legend, there are many confirmed and suspected burial grounds of Kahuna (chiefs) and Ali`i (priests) on the upper slopes, and the summit platuea of Mauna Kea.