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  How does plant richness affect pollinator richness and temporal stability of flower visits?

Ebeling, A., Klein, A. M., Schumacher, J., Weisser, W. W., & Tscharntke, T. (2008). How does plant richness affect pollinator richness and temporal stability of flower visits? Oikos, 117(12), 1808-1815. doi:10.1111/j.1600-0706.2008.16819.x.

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BGC1174.pdf (Publisher version), 135KB
 
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Ebeling, A., Author
Klein, A. M., Author
Schumacher, J.1, Author           
Weisser, W. W., Author
Tscharntke, T., Author
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1Department Biogeochemical Processes, Prof. E.-D. Schulze, Max Planck Institute for Biogeochemistry, Max Planck Society, ou_1497751              

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 Abstract: Pollinators play a key role in the reproduction of most plant species, and pollinator and plant diversity are often related. We studied an experimental gradient of plant species richness for a better understanding of plant-pollinator community interactions and their temporal variability, because in non-experimental field surveys plant richness is often confounded with gradients in management, soil fertility, and community composition. We observed pollinator species richness and frequency of visits six times in 73 plots over two years, and used advanced statistical analysis to account for the high number of zeroes that often occur in count data of rare species. The frequency of pollinator visits increased linearly with both the blossom cover and the number of flowering plant species, which was closely related to the total number of plant species, whereas the number of pollinator species followed a saturation curve. The presence of particularly attractive plant species was only important for the frequency of flower visits, but not to the richness of pollinators. Plant species richness, blossom cover, and the presence of attractive plant species enhanced the temporal stability in the frequency of pollinator visits. In conclusion, grasslands with high plant diversity enhance and stabilize frequent and diverse flower visitations, which should sustain effective pollination and plant reproduction. [References: 44]

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 Dates: 2008
 Publication Status: Issued
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 Identifiers: DOI: 10.1111/j.1600-0706.2008.16819.x
Other: BGC1174
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Title: Oikos
Source Genre: Journal
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Publ. Info: Copenhagen : Munksgaard International Publishers
Pages: - Volume / Issue: 117 (12) Sequence Number: - Start / End Page: 1808 - 1815 Identifier: CoNE: https://pure.mpg.de/cone/journals/resource/110978977736795
ISSN: 1600-0706 (online) 0030-1299 (print)