http://hdl.handle.net/10125/532 http://scholarspace.manoa.hawaii.edu/retrieve/1925 http://hdl.handle.net/10125/532 Search the Channel search http://scholarspace.manoa.hawaii.edu/simple-search http://hdl.handle.net/10125/7395 Title: Soil-Vegetation Relationships in Hawaiian Kipukas<br/><br/>Author(s): Mueller-Dombois, D; Lamoureux, CH Sat, 01 Apr 1967 00:00:00 GMT http://hdl.handle.net/10125/4182 Title: Ohia rain forest study: ecological investigations of the ohia dieback problem in Hawaii<br/><br/>Author(s): Mueller-Dombois, Dieter; Jacobi, James D; Cooray, Ranjit G; Balakrishnan, N<br/><br/>Abstract: This final report summarizes the more important results of a two year study of the ohia (Metrosideros collina subsp. polymorpha) rain forest, extending from within Hawaii Volcanoes National Park north across the east flank of Mauna Kea, Island Hawaii. The study focus was on the ohia dieback which occurs in many areas of this terrain. A 1:48,000 vegetation map was produced, which is included in selected copies of this report. In addition, an independent habitat classification was developed from physical soil and moisture regime differences occurring in the area. Over 35 ohia forest stands were sampled in detail for their ohia population structures and 39 releves were analyzed for their floristic content. Five different forms of dieback were recognized. Two of these, called the Dryland and Wetland Diebacks appear to be the more rapid and dramatic forms. Their causes are not from disease or insect attack, but are presumed to be from climatic triggers, acting through the soil. These diebacks are clearly associated with ohia-stand rejuvenation. A third form of dieback, here called Bog-formation Dieback, appears to be a slower form of stand dieback related to permanent site changes. An Ohia-displacement Dieback occurs in the Olaa Tract area, where tree ferns seem to gradually take over the habitats. Here the dieback cause appears to be overmaturity. Individual tree dieback, the fifth form of dieback, is found as an isolated, but common phenomenon in many non-dieback stands examined. All diebacks appear to have natural causes, which are suggested in detail. A new theory is presented, which proposes that there are a number of dynamic phases, including the dieback, which provide for the perpetuation of the shade-intolerant, dominant tree species (ohia) in this rainforest ecosystem.<br/><br/>Description: Reports were scanned in black and white at a resolution of 600 dots per inch and were converted to text using Adobe Paper Capture Plug-in. Thu, 01 Dec 1977 00:00:00 GMT http://hdl.handle.net/10125/1192 Title: The Genus Pittosporum (Pittosporaceae) on Rapa Island and on the Austral Islands, Polynesia Pacific Plant Studies 31<br/><br/>Author(s): St. John, Harold Fri, 01 Apr 1977 00:00:00 GMT http://hdl.handle.net/10125/1163 Title: A New Ervatamia (Apocynaceae) from Makatea Island, Tuamotu Archipelago Pacific Plant Studies 23<br/><br/>Author(s): St. John, Harold Tue, 01 Oct 1974 00:00:00 GMT http://hdl.handle.net/10125/1162 Title: Skottsbergiliana New Genus (Cucurbitaceae) of Hawaii Island Hawaiian Plant Studies 41<br/><br/>Author(s): St. John, Harold Tue, 01 Oct 1974 00:00:00 GMT http://hdl.handle.net/10125/1150 Title: Revision of the Genus Pandanus Stickman. Part 37 Pandanus on Aldabra Island, Indian Ocean<br/><br/>Author(s): St. John, Harold Tue, 01 Jan 1974 00:00:00 GMT http://hdl.handle.net/10125/1149 Title: Revision of the Genus Pandanus Stickman. Part 36 The New Section Asperi from Indomalaya<br/><br/>Author(s): St. John, Harold Tue, 01 Jan 1974 00:00:00 GMT http://hdl.handle.net/10125/923 Title: Monograph of the Hawaiian Species of Pleomele (Liliaceae). Hawaiian Plant Studies 103<br/><br/>Author(s): St. John, Harold<br/><br/>Abstract: This paper gives a monographic treatment, based on morphology,of Pleomele (Liliaceae) in the Hawaiian Islands. It recognizes as islandendemics three species on Hawaii, two on Oahu, and one each on Kauai,Molokai, Maui, and Lanai. The new species are P. auwahiensis, P. Halaapepe,P. kaupulehuensis, P. konaensis, and P. Rockii. Mon, 01 Apr 1985 00:00:00 GMT http://hdl.handle.net/10125/922 Title: 'Ohi'a Dieback in Hawaii: 1984 Synthesis and Evaluation<br/><br/>Author(s): Mueller-Dombois, Dieter<br/><br/>Abstract: Attention is first drawn to the state of knowledge in 1981 of theHawaiian Metrosideros polymorpha ('ohi'a) stand dieback. New findings thathave largely been developed or published since then are described; these encompassvegetation, soils, hydrology, climatology, and experimental, historical andevolutionary research. A brief comparison of canopy dieback in Hawaii with thatin other forest systems is made. New facts on the Hawaiian dieback are summarizedwithin the context of climatic instability, soil, and stand factors . Thesefacts are then related to ideas of environmental disturbance, disease , and cohortsenescence. There are strong indications that the primary factor causing 'ohi'adieback develop s in the dieback population itself due to synchronized aging ofcohort stands. External abiotic (environmental) and biotic stress factors (insectsand fungal pathogens) appear to play secondary and/or subsidiary roles , respectively.Based on this new knowledge, policy and management considerations arediscussed with regard to the role of dieback and its impact on preserve design,forest hydrology, and soil fertility . Finally, a number of recommendations aremade for new management-related research and for further research into theetiology of canopy dieback. Mon, 01 Apr 1985 00:00:00 GMT http://hdl.handle.net/10125/910 Title: Revision of the Genus Pandanus Stickman. Part 38 Pandanus in Fiji, First Group (except Section Pandanus)<br/><br/>Author(s): St. John, Harold Wed, 01 Jan 1975 00:00:00 GMT