Vegetation and fire in lowland dry forest at Wa'ahila Ridge on O'ahu, Hawai'i

• Published in: PhytoKeys Vol. 68; no. 68; pp. 51 - 64
• Main Authors: Lu, Pei-Luen, DeLay, John K
• Format: Journal Article
• Language: English
• Published: Bulgaria Pensoft Publishers 01.01.2016
• Subjects: Biodiversity; Botanical research; Ecological succession; Environmental aspects; Forest fires; Hawaii; Indigenous species; Introduced species; Invasive species; Lichens; Native species; Natural resource management; Resource management; Species richness; Vegetation; Vegetation dynamics; Hawaii; Fire ecology; vegetation ecology; island ecology; O’ahu; restoration
• ISSN: 1314-2011; 1314-2003; 1314-2011
• DOI: 10.3897/phytokeys.68.7130

Long-term ecological studies are critical for providing key insights in ecology, environmental change, natural resource management and biodiversity conservation. However, island fire ecology is poorly understood. No previous studies are available that analyze vegetative changes in burned and unburned dry forest remnants on Wa'ahila Ridge, Hawai'i. This study investigates vegetation succession from 2008 to 2015, following a fire in 2007 which caused significant differences in species richness, plant density, and the frequency of woody, herb, grass, and lichens between burned and unburned sites. These findings infer that introduced plants have better competitive ability to occupy open canopy lands than native plants after fire. This study also illustrates the essential management need to prevent alien plant invasion, and to restore the native vegetation in lowland areas of the Hawaiian Islands by removing invasive species out-planting native plants after fire.