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dc.contributor.author
Venail, Patrick
dc.contributor.author
Gross, Kevin
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Oakley, Todd H.
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Narwani, Anita
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Allan, Eric
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Flombaum, Pedro
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Isbell, Forest
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Joshi, Jasmin
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Reich, Peter B.
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Tilman, David
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Van Ruijven, Jasper
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Cardinale, Bradley J.
dc.date.available
2016-03-01T17:28:54Z
dc.date.issued
2015-02
dc.identifier.citation
Venail, Patrick; Gross, Kevin; Oakley, Todd H.; Narwani, Anita; Allan, Eric; et al.; Species richness, but not phylogenetic diversity, influences community biomass production and temporal stability in a re-examination of 16 grassland biodiversity studies; Wiley; Functional Ecology; 29; 2-2015; 615–626
dc.identifier.issn
0269-8463
dc.identifier.uri
http://hdl.handle.net/11336/4555
dc.description.abstract
Hundreds of experiments have now manipulated species richness of various groups of organisms and examined how this aspect of biological diversity influences ecosystem functioning. Ecologists have recently expanded this field to look at whether genetic diversity among species, often quantified as the degree of evolutionary divergence on a molecular phylogeny, also predicts ecological function. Some have hypothesized that phylogenetic divergence should be a superior predictor of ecological function than species richness because evolutionary relatedness represents the degree of ecological and functional differentiation among species. But studies to date have provided mixed support for this hypothesis. Here, we re-analyze data from 16 experiments that have manipulated plant species richness in grassland ecosystems and examined the impact on aboveground biomass production over multiple time points. Using a new molecular phylogeny of the plant species used in these experiments, we quantified how the phylogenetic diversity of plants impacts average community biomass production as well as the stability of community biomass production through time. Using four complementary analyses we show that, after statistically controlling for variation in species richness, phylogenetic diversity (the sum of branches in a molecular phylogenetic tree connecting all species in a community) is neither related to mean community biomass nor to the temporal stability of biomass. These results run counter to past claims. After controlling for species richness, phylogenetic diversity was positively related to variation in community biomass over time via an increase in individual species variances but this relationship was not strong enough to influence community stability. In contrast to the non-significant relationships between phylogenetic diversity, biomass, and stability, after controlling for species richness, our analyses show that species richness tends to increase the mean biomass production of plant communities, after controlling for phylogenetic diversity. The relationship between species richness and temporal variation in community biomass was either non-significant or negative depending on which analysis was used. However, the increases in community biomass with species richness, independent of phylogenetic diversity, always led to increased stability. These results suggest that phylogenetic diversity is no better as a predictor of ecosystem functioning than species richness. Synthesis. Our study on grasslands offers a cautionary tale when trying to relate phylogenetic diversity to ecosystem functioning as there may be trait and functional variation among species that cannot be explained by their evolutionary relatedness. Management recommendations suggesting the conservation of evolutionarily distinct species will lead to more productive and more stable communities under changing environmental conditions are not well supported by the data explored in this study.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Biodiversity
dc.subject
Phylogenetic Diversity
dc.subject.classification
Ecología
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dc.subject.classification
Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
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dc.title
Species richness, but not phylogenetic diversity, influences community biomass production and temporal stability in a re-examination of 16 grassland biodiversity studies
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-03-30 10:35:44.97925-03
dc.journal.volume
29
dc.journal.pagination
615–626
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Londres
dc.description.fil
Fil: Venail, Patrick. University of Michigan. School of Natural Resources and Environment; Estados Unidos. University of Geneva. Institute F.-A. Forel. Section of Earth and Environmental Sciences; Suiza
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Fil: Gross, Kevin. North Carolina State University. Statistics Department; Estados Unidos
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Fil: Oakley, Todd H.. University of California. Department of Ecology, Evolution and Marine Biology; Estados Unidos
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Fil: Narwani, Anita. University of Michigan. School of Natural Resources and Environment; Estados Unidos. Swiss Federal Institute of Aquatic Science and Technology. Aquatic Ecology; Suiza
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Fil: Allan, Eric. University of Bern. Institute of Plant Sciences; Estados Unidos
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Fil: Flombaum, Pedro. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinacion Administrativa Ciudad Universitaria. Centro de Investigaciones del Mar y la Atmósfera; Argentina
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Fil: Isbell, Forest. University of Georgia. Department of Plant Biology; Estados Unidos
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Fil: Joshi, Jasmin. University of Potsdam. Biodiversity Research/Systematic Botany. Institute of Biochemistry and Biology; Alemania. Berlin-Brandenburg Institute of Advanced Biodiversity Research; Alemania
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Fil: Reich, Peter B.. University of Minnesota. Department of Forest Resources; Estados Unidos. University of Western Sydney. Hawkesbury Institute for the Environment; Australia
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Fil: Tilman, David. University of Minnesota. College of Biological Sciences; Estados Unidos. University of California. Bren School of Environmental Science and Management; Estados Unidos
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Fil: Van Ruijven, Jasper. Wageningen University. Department of Nature Conservation and Plant Ecology; Países Bajos
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Fil: Cardinale, Bradley J.. University of Michigan. School of Natural Resources and Environment; Estados Unidos
dc.journal.title
Functional Ecology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/1365-2435.12432/abstract
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info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/1365-2435.12432
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/issn/0269-8463
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