Succession in Wetlands: A Gleasonian Appraoch

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1981_vanderValk_SuccessionWetlands.pdf (558.58 KB)
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1981-06-01
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van der Valk, Arnold
Professor Emeritus
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Botany
The Botany Graduate Program offers work for the degrees Master of Science and Doctor of Philosophy with a graduate major in Botany, and minor work for students majoring in other departments or graduate programs. Within the Botany Graduate Major, one of the following areas of specialization may be designated: aquatic and wetland ecology, cytology, ecology, morphology, mycology, physiology and molecular biology, or systematics and evolution. Relevant graduate courses that may be counted toward completion of these degrees are offered by the Departments of EEOB and GDCB, and by other departments and programs. The specific requirements for each student’s course distribution and research activities are set by the Program of Study Committee established for each student individually, and must satisfy all requirements of the Graduate College (See Index). GRE (and if necessary, TOEFL) scores are required of all applicants; students are encouraged to contact faculty prior to application.
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Botany
Abstract

A qualitative model of succession in freshwater wetlands is proposed, based on the life history features of the species involved. Three key life history traits can be used to characterize wetland species: life—span, propagule longevity, and propagule establishment requirements. By combining these three life history traits, 12 basic wetland life history types are recognized. For each life history type, the future state (presence only in the form of propagules in the seed bank, presence as adult plants, or complete absence) of each species type in a wetland can be predicted if environmental conditions change. Most of the information needed to apply this model to a particular wetland can be obtained by an examination of a wetland's seed bank. Several examples of succesion in North American and African wetlands are presented to illustrate the application of the model.
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This article is published as Van der Valk, A. G. "Succession in wetlands: a gleasonian appraoch." Ecology 62, no. 3 (1981): 688-696. doi: 10.2307/1937737. Posted with permission.
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http://doi.org/10.2307/1937737
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https://dr.lib.iastate.edu/handle/20.500.12876/11343
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Botany
Ecology and Evolutionary Biology
Plant Biology
Keywords
drawdown, life history, Iowa, Manitoba, marsh, seed bank, succession, vegetation dynamics, wetlands
Copyright
Thu Jan 01 00:00:00 UTC 1981
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