Overyielding in experimental grassland communities - Irrespective of species pool or spatial scale
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In: Ecology Letters, Vol. 8, No. 4, 01.04.2005, p. 419-429.
Research output: Journal contributions › Journal articles › Research › peer-review
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TY - JOUR
T1 - Overyielding in experimental grassland communities - Irrespective of species pool or spatial scale
AU - Roscher, Christiane
AU - Temperton, Vicky M.
AU - Scherer-Lorenzen, Michael
AU - Schmitz, Martin
AU - Schumacher, Jens
AU - Schmid, Bernhard
AU - Buchmann, Nina
AU - Weisser, Wolfgang W.
AU - Schulze, Ernst Detlef
PY - 2005/4/1
Y1 - 2005/4/1
N2 - In a large integrated biodiversity project ('The Jena Experiment' in Germany) we established two experiments, one with a pool of 60 plant species that ranged broadly from dominant to subordinate competitors on large 20 x 20 m and small 3.5 x 3.5 m plots (= main experiment), and one with a pool of nine potentially dominant species on small 3.5 x 3.5 m plots (= dominance experiment). We found identical positive species richness-aboveground productivity relationships in the main experiment at both scales. This result suggests that scaling up, at least over the short term, is appropriate in interpreting the implications of such experiments for larger-scale patterns. The species richness-productivity relationship was more pronounced in the experiment with dominant species (46.7 and 82.6% yield increase compared to mean monoculture, respectively). Additionally, transgressive overyielding occurred more frequently in the dominance experiment (67.7% of cases) than in the main experiment (23.4% of cases). Additive partitioning and relative yield total analyses showed that both complementarity and selection effects contributed to the positive net biodiversity effect.
AB - In a large integrated biodiversity project ('The Jena Experiment' in Germany) we established two experiments, one with a pool of 60 plant species that ranged broadly from dominant to subordinate competitors on large 20 x 20 m and small 3.5 x 3.5 m plots (= main experiment), and one with a pool of nine potentially dominant species on small 3.5 x 3.5 m plots (= dominance experiment). We found identical positive species richness-aboveground productivity relationships in the main experiment at both scales. This result suggests that scaling up, at least over the short term, is appropriate in interpreting the implications of such experiments for larger-scale patterns. The species richness-productivity relationship was more pronounced in the experiment with dominant species (46.7 and 82.6% yield increase compared to mean monoculture, respectively). Additionally, transgressive overyielding occurred more frequently in the dominance experiment (67.7% of cases) than in the main experiment (23.4% of cases). Additive partitioning and relative yield total analyses showed that both complementarity and selection effects contributed to the positive net biodiversity effect.
KW - Biodiversity
KW - Complementarity effect
KW - Dominant species
KW - Plant species richness
KW - Plot size
KW - Productivity
KW - Selection effect
KW - The Jena Experiment
KW - Biology
KW - Ecosystems Research
UR - http://www.scopus.com/inward/record.url?scp=17444391731&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/56e27dad-bac7-3a0e-a756-b47d470202d0/
U2 - 10.1111/j.1461-0248.2005.00736.x
DO - 10.1111/j.1461-0248.2005.00736.x
M3 - Journal articles
AN - SCOPUS:17444391731
VL - 8
SP - 419
EP - 429
JO - Ecology Letters
JF - Ecology Letters
SN - 1461-023X
IS - 4
ER -