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  Selection for monoculture and mixture genotypes in a biodiversity experiment

Lipowsky, A., Schmid, B., & Roscher, C. (2011). Selection for monoculture and mixture genotypes in a biodiversity experiment. Basic and Applied Ecology, 12(4), 360-371. doi:10.1016/j.baae.2011.03.005.

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BGC1524.pdf (Publisher version), 306KB
 
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 Creators:
Lipowsky, A.1, Author           
Schmid, B., Author
Roscher, C.2, Author           
Affiliations:
1Department Biogeochemical Processes, Prof. S. E. Trumbore, Max Planck Institute for Biogeochemistry, Max Planck Society, ou_1497752              
2Emeritus Group, Prof. E.-D. Schulze, Max Planck Institute for Biogeochemistry, Max Planck Society, ou_1497756              

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Free keywords: Genetic variation Local adaptation Mixture Monoculture Phenotypic plasticity Reciprocal transplant experiment adjacent plant-populations local adaptation experimental grassland phenotypic plasticity genetic diversity species richness p-lanceolata performance differentiation communities
 Abstract: Studies in experimental grasslands have shown variation in plant individual performance in response to neighbourhood diversity. To which extent these responses are due to phenotypic plasticity or genetic variation is largely unknown. We collected seed families of five herbaceous species (Cirsiwn oleraceum, Crepis biennis, Plantago lanceolata, Plantago media and Rumex acetosa) in monocultures and 60-species mixtures five years after establishment and replanted or transplanted the offspring into the same monocultures and 60-species mixtures. In all five species the actual environment significantly affected plant survival, growth and performance in terms of shoot biomass and investment into reproduction, indicating stronger competition for light and different levels of herbivory in mixtures as compared with monocultures. Effects of the original environment were smaller and less consistent, but indicated differential selection in monocultures vs. mixtures. The interaction between actual and original environment, corresponding to the "home" vs. "away" comparison, was rarely significant, yet this was providing a first sign of local adaptation. We conclude that, for the investigated plant species, more than five growing seasons in monocultures or mixtures would be needed to better demonstrate the selection of genotypes specifically adapted to monocultures or mixtures. A faster local adaptation may have been prevented by the ability of these species to respond to variation in neighbourhood diversity to a large degree via phenotypic plasticity and other factors.

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Language(s): eng - English
 Dates: 2011
 Publication Status: Issued
 Pages: -
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 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1016/j.baae.2011.03.005
ISI: ://WOS:000293312600010
Other: BGC1524
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Title: Basic and Applied Ecology
Source Genre: Journal
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Publ. Info: Jena, Germany : Urban & Fischer
Pages: - Volume / Issue: 12 (4) Sequence Number: - Start / End Page: 360 - 371 Identifier: CoNE: https://pure.mpg.de/cone/journals/resource/110975506072219
ISSN: 1439-1791