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

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Title: Genecological studies of Hawaiian ferns: reproductive biology of pioneer and non-pioneer species on the island of Hawaii
Authors: Lloyd, Robert M.
Keywords: Nephrolepis exaltata
Microsorium scolopendria
Polypodium pellucidum
Dicranopteris linearis
Cibotium glaucum
show 1 moresporophytes
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LC Subject Headings: Ferns -- Hawaii -- Hawaii Island.
Ferns -- Spores.
Plant spores -- Hawaii.
Ferns -- Reproduction.
Issue Date: Feb 1974
Publisher: Island Ecosystems IRP, U.S. International Biological Program
Citation: Lloyd 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.
Series/Report no.: International Biological Program Technical Report
35
Abstract: Sporophytes 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.
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.
Sponsor: Portions 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.
Pages/Duration: 29 pages
URI/DOI: http://hdl.handle.net/10125/26566
Rights: CC0 1.0 Universal
Appears in Collections:Hawaii's Ferns and Fern Allies (Lycophytes) Collection
International Biological Program Technical Reports (1970-1975)



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