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  Phytoplankton competition along a gradient of dilution rates

Sommer, U. (1986). Phytoplankton competition along a gradient of dilution rates. Oecologia, 68(4), 503-506.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-E484-8 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-E485-6
Genre: Journal Article

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Sommer_1986.pdf (Publisher version), 404KB
 
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Sommer, Ulrich1, Author              
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1Department Ecophysiology, Max Planck Institute for Limnology, Max Planck Institute for Evolutionary Biology, Max Planck Society, escidoc:976547              

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 Abstract: Natural phytoplankton from Lake Constance was used for chemostat competition experiments performed at a variety of dilution rates. In the first series at high Si:P ratios and under uniform phosphorus limitation for all species, Synedra acus outcompeted all other species at all dilution rates up to 1.6 d-1, only at the highest dilution rate (2.0 d- 1) Achnanthes rninutissima was successful. In the second series in the absence of any Si a green algal replacement series was found, with Mougeotia thylespora dominant at the lowest dilution rates, Scenedesmus acutus at the intermediate ones, and Chlorella rninutissima at the highest ones. The outcome of interspeciflc competition was not in contradiction with the Monod kinetics of P-limited growth of the five species, but no satisfactorily precise prediction of competitive performance can be derived from the Monod kinetics because of insufficient precision in the estimate ofk~.

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Language(s): eng - English
 Dates: 1986
 Publication Status: Published in print
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 Identifiers: eDoc: 263051
Other: S 34113
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Title: Oecologia
Source Genre: Journal
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Pages: - Volume / Issue: 68 (4) Sequence Number: - Start / End Page: 503 - 506 Identifier: ISSN: 0029-8549