Chara can outcompete Myriophyllum under low phosphorus supply

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RICHTER, Doreen, Elisabeth M. GROSS, 2013. Chara can outcompete Myriophyllum under low phosphorus supply. In: Aquatic Sciences. 75(3), pp. 457-467. ISSN 1015-1621. eISSN 1420-9055. Available under: doi: 10.1007/s00027-013-0292-9

@article{Richter2013-07Chara-42029, title={Chara can outcompete Myriophyllum under low phosphorus supply}, year={2013}, doi={10.1007/s00027-013-0292-9}, number={3}, volume={75}, issn={1015-1621}, journal={Aquatic Sciences}, pages={457--467}, author={Richter, Doreen and Gross, Elisabeth M.} }

<rdf:RDF xmlns:dcterms="" xmlns:dc="" xmlns:rdf="" xmlns:bibo="" xmlns:dspace="" xmlns:foaf="" xmlns:void="" xmlns:xsd="" > <rdf:Description rdf:about=""> <dcterms:abstract xml:lang="eng">In the course of re-oligotrophication in Lower Lake Constance, Germany, the tall-growing angiosperm Myriophyllum spicatum has been almost replaced by dense and lower-growing charophytes. We hypothesise that Chara globularis negatively affects the performance of M. spicatum due to density competition and nutrient interference. Intra- and interspecific competition was assessed using a response surface experimental design with different densities of both species in mono and mixed stands in an outdoor mesocosm experiment. After 8 weeks, we measured the growth and various functional traits of both species, including stoichiometry, ash-free dry mass and dry-matter content, and for M. spicatum, additionally chlorophyll content, leaf-mass fraction, formation of autofragments, and root/shoot ratio. With increasing density, C. globularis reduced the growth of M. spicatum much more strongly than that of conspecifics. Increasing density of C. globularis led to a lower chlorophyll a to b ratio and lower nitrogen content based on ash-free dry mass in M. spicatum as well as reduced autofragmentation. Established C. globularis meadows can negatively affect tall-growing angiosperms such as M. spicatum when the environmental conditions, such as low phosphorus availability and high water-clarity, are appropriate. These findings have implications for the management of lakes, specifically those where a nuisance growth of tall macrophytes occurs, e.g. in systems where M. spicatum is invasive.</dcterms:abstract> <dspace:isPartOfCollection rdf:resource=""/> <dc:creator>Gross, Elisabeth M.</dc:creator> <foaf:homepage rdf:resource="http://localhost:8080/jspui"/> <dc:language>eng</dc:language> <dcterms:title>Chara can outcompete Myriophyllum under low phosphorus supply</dcterms:title> <dc:creator>Richter, Doreen</dc:creator> <dc:contributor>Richter, Doreen</dc:contributor> <dc:contributor>Gross, Elisabeth M.</dc:contributor> <dcterms:isPartOf rdf:resource=""/> <dcterms:issued>2013-07</dcterms:issued> <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/> <bibo:uri rdf:resource=""/> <dc:date rdf:datatype="">2018-04-12T09:56:58Z</dc:date> <dcterms:available rdf:datatype="">2018-04-12T09:56:58Z</dcterms:available> </rdf:Description> </rdf:RDF>

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