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Metrosideros polymorpha - Dubautia spp.- Styphelia tameiameiae Dry-Site Lava Flow Group | NatureServe Biotics 2019
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Name: Metrosideros polymorpha - Dubautia spp.- Styphelia tameiameiae Dry-Site Lava Flow Group
Reference: NatureServe Biotics 2019
Description: This sparsely vegetated group is restricted to areas of geologically recent volcanic activity on drier portions of the islands of Hawai`i and Maui, from sea level to the subalpine zone, and is especially common in the saddle region on the Big Island and at higher elevations and leeward areas of Maui. Precipitation is typically &lt;500 mm. The dry climate and slow soil development significantly retard the rate of primary succession on these sites, which remain barren or sparsely vegetated for at least 75-100 years. The initial plants to colonize include the lichen <i>Stereocaulon vulcani</i> and ferns such as <i>Pellaea ternifolia, Asplenium</i> spp., and <i>Psilotum nudum</i>. Next the tree <i>Metrosideros polymorpha</i> and shrubs such as <i>Dodonaea viscosa</i> and <i>Styphelia tameiameiae</i> establish in cracks on pâhoehoe or more sheltered microsites on `a`â. Later, scattered <i>Agrostis sandwicensis, Coprosma montana, Myoporum sandwicense, Myrsine lanaiensis, Portulaca sclerocarpa, Tetramolopium humile, Vaccinium reticulatum, Verbena litoralis</i>, or <i>Wahlenbergia marginata</i> may become established. Pâhoehoe appears to support vegetation more rapidly than `a`â. Exotic perennial bunchgrass <i>Pennisetum setaceum</i> is invading these sites and changing natural primary succession patterns. 
Accession Code: urn:lsid:vegbank.org:commConcept:40165-{64C8F408-F70D-43F3-949E-0551FC01359A}
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 27-May-2016 to: ongoing
      Names:   UID: ELEMENT_GLOBAL.2.860816 NatureServe ExplorerNatureServe Explorer logo
  Code: G440
  Scientific: Metrosideros polymorpha - Dubautia spp.- Styphelia tameiameiae Dry-Site Lava Flow Group