Genecological studies of Hawaiian ferns: reproductive biology of pioneer and non-pioneer species on the island of Hawaii

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dc.contributor.authorLloyd, Robert M.
dc.date.accessioned2013-03-13T18:50:55Z
dc.date.available2013-03-13T18:50:55Z
dc.date.issued1974-02
dc.descriptionReports 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.
dc.description.abstractSporophytes from natural populations of ferns occupying pioneer lava and mature rainforest habitats on the island of Hawaii, Hawaiian Islands, were investigated to determine their mating system and frequency of recessive lethal genes (genetic load). Species dominant in pioneer lava habitats were found to have intragametophytic mating systems and to be devoid of lethal genotypes. Species from intermediate and mature rainforest habitats exhibited complex intergametophytic mating systems and higher levels of genetic load. It is suggested that natural selection has favored intragametophytic mating and homozygosity in species of less diverse and less competitive pioneer habitats and intergametophytic mating and heterozygosity in species of more mature habitats.
dc.description.sponsorshipPortions of this research were supported by funds from the U.S. International Biological Program, Island Ecosystems Hawaii subprogram. I am indebted to Ms. Lynn Hatsunami for technical assistance in some of the experiments; Dr. Dieter Mueller-Dombois for providing spores for my work in Ohio; and the University of Hawaii for facilities during the early part of this work.
dc.format.extent29 pages
dc.identifier.citationLloyd RM. 1974. Genecological studies of Hawaiian ferns: reproductive biology of pioneer and non-pioneer species on the Island of Hawaii. Honolulu (HI): Island Ecosystems IRP, U.S. International Biological Program. International Biological Program Technical Report, 35. 29 pages.
dc.identifier.urihttp://hdl.handle.net/10125/26566
dc.language.isoen-US
dc.publisherIsland Ecosystems IRP, U.S. International Biological Program
dc.relation.ispartofseriesInternational Biological Program Technical Report
dc.relation.ispartofseries35
dc.rightsCC0 1.0 Universal
dc.rights.urihttp://creativecommons.org/publicdomain/zero/1.0/
dc.subjectNephrolepis exaltata
dc.subjectMicrosorium scolopendria
dc.subjectPolypodium pellucidum
dc.subjectDicranopteris linearis
dc.subjectCibotium glaucum
dc.subjectsporophytes
dc.subject.lcshFerns -- Hawaii -- Hawaii Island.
dc.subject.lcshFerns -- Spores.
dc.subject.lcshPlant spores -- Hawaii.
dc.subject.lcshFerns -- Reproduction.
dc.titleGenecological studies of Hawaiian ferns: reproductive biology of pioneer and non-pioneer species on the island of Hawaii
dc.typeReport
dc.type.dcmiText

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International Biological Program Technical Reports (1970-1975)
Hawaii's Ferns and Fern Allies (Lycophytes) Collection