Beilman, DaveSchubert, Olivia2016-02-192016-02-192012-12http://hdl.handle.net/10125/100816MA University of Hawaii at Manoa 2012Includes bibliographical references (leaf 80).Rainfall at three mountaintop locations, two windward: Palolo (Kaʻau Crater), Poamoho, and one leeward: Mount Kaʻala, on Oʻahu, Hawaiʻi, was analyzed. Poamoho was found to receive the greatest rainfall monthly and annually, from 1920-2007, followed by Palolo and Mount Kaʻala. Kaʻau Crater sits at 460 m elevation in the southern Koʻolau Mountains and at present contains a wetland ecosystem and has accumulated many meters of sediment. At Kaʻau Crater, both rainfall and water table level were measured and were greatest between November and March. Rainfall and water table level were found to have a significant relationship. A 4.5 m sediment core retrieved from the crater dating through the Holocene, with seventeen 14C dates, contains fossil pollen including Malvaceae, a dry indicator, and wetindicator taxa such as Arecaceae Prichardia. The precipitation reconstruction derived from the pollen stratigraphy shows a drier early Holocene and a relatively wetter mid to late Holocene.ix, 80 leavesengAll UHM dissertations and theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission from the copyright owner.Kaau CraterpaleoclimatepollenholocenevegetationChanges in Vegetation and Environment Over the Holocene Kaʻau Crater, Oʻahu, HawaiʻiThesis