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The plant ecology of the Rock river woodlands of Ogle county, Illinois ...De Forest, Howard, January 1922 (has links)
Thesis (Ph. D.)--University of Chicago, 1920. / Cover title. "Private edition, distributed by the University of Chicago libraries, Chicago, Illinois." "Reprinted from the Transactions of the Illinois State Academy of Science, vol. 14, no. 1." Bibliography: p. 41-42. Also available on the Internet. Also issued online.
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Evolutionary ecology of plant-plant interactions : an empirical modelling approach /Damgaard, Christian. January 2004 (has links)
Disputats, Aarhus Universitet. / Lånetid: 8 dage.
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The plant ecology of the Rock river woodlands of Ogle county, Illinois ...De Forest, Howard, January 1922 (has links)
Thesis (Ph. D.)--University of Chicago, 1920. / Cover title. "Private edition, distributed by the University of Chicago libraries, Chicago, Illinois." "Reprinted from the Transactions of the Illinois State Academy of Science, vol. 14, no. 1." Bibliography: p. 41-42.
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Sur la phytosociologie la synécologie et le bilan d'eau de halophytes de la région néerlandaise méridionale, ainsi que de la méditerranée française.Adriani, Marcus Jan. January 1945 (has links)
Academisch proefschrift--Amsterdam. / Summary in Dutch and English. Bibliography: p. [208]-214.
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Sur la phytosociologie la synécologie et le bilan d'eau de halophytes de la région néerlandaise méridionale, ainsi que de la méditerranée française.Adriani, Marcus Jan. January 1945 (has links)
Academisch proefschrift--Amsterdam. / Summary in Dutch and English. Bibliography: p. [208]-214.
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Fire and vegetation history of the last 2000 years in Jackson Hole, Grand Teton National Park, WyomingJacobs, Karen Marie. January 2007 (has links) (PDF)
Thesis (M.S.)--Montana State University--Bozeman, 2007. / Typescript. Chairperson, Graduate Committee: Cathy Whitlock. Includes bibliographical references (leaves 47-51).
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Plant dioecy, ecology, evolution and sex reversalFreeman, D. Carl 01 August 1977 (has links)
The distribution of dioecious species among forty-four plant communities of western United States was examined. The dioecious habit is most prevalent in harsh environments. In many communities, over 20 percent of the species and 40 percent of the individuals are dioecious. Dioecy is most common among woody species which are pollinated by wind. It is concluded that inbreeding depression alone is insufficient to account for all known facts concerning dioecy. Disruptive selection acting upon differential success of gametes produced on sites of differing quality appears to have played a major role in producing separate sexed individuals. Dioecious species reported to exhibit sex reversal and factors believed to promote such reversals are tabulated. It is concluded that for dioecious species which exhibit differential resource utilization by the sexes, individuals which produce offspring capable of sex reversal have a selective advantage. Sex reversal provides a strategy that permits dioecious species to reproduce optimally in patchy environments.
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