期刊
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
卷 288, 期 1958, 页码 -出版社
ROYAL SOC
DOI: 10.1098/rspb.2021.1290
关键词
ecosystem productivity; individual plant growth; n-dimensional hypervolume concept; optical types; spectral types; spectroscopy
资金
- National Science Foundation
- National Aeronautics and Space Administration through the Dimensions of Biodiversity program [DEB-1342872, DEB-1342778, DEB-1342827, DEB-1342823]
- Cedar Creek National Science Foundation Long-Term Ecological Research program (NSF) [DEB-1234162]
- ASCEND Biology Integration Institute (NSF) [DBI 2021898]
- iCORE/AITF [G224150012, 200700172]
- NSERC [RGPIN-2015-05129]
- CFI [26793]
- University of Minnesota
- University of Minnesota's Department of Ecology, Evolution and Behavior
- Research Priority Program in Global Change and Biodiversity (URPP GCB) at the University of Zurich
- University of Minnesota's Department of Ecology, Evolution and Behavior (Crosby fund)
- University of Minnesota's Department of Ecology, Evolution and Behavior (Rothman fund)
- University of Minnesota's Department of Ecology, Evolution and Behavior (Wilkie fund)
- University of Minnesota's Department of Ecology, Evolution and Behavior (Anderson fund)
- University of Minnesota's Department of Ecology, Evolution and Behavior (Dayton fund)
The study found that the spectral space occupied by individual plants increases with their growth, and the spectral space occupied by plant communities also increases with ecosystem productivity. Furthermore, ecosystem productivity is better explained by inter-individual spectral complementarity rather than by the large spectral space occupied by productive individuals.
Reflectance spectra provide integrative measures of plant phenotypes by capturing chemical, morphological, anatomical and architectural trait information. Here, we investigate the linkages between plant spectral variation, and spectral and resource-use complementarity that contribute to ecosystem productivity. In both a forest and prairie grassland diversity experiment, we delineated n-dimensional hypervolumes using wavelength bands of reflectance spectra to test the association between the spectral space occupied by individual plants and their growth, as well as between the spectral space occupied by plant communities and ecosystem productivity. We show that the spectral space occupied by individuals increased with their growth, and the spectral space occupied by plant communities increased with ecosystem productivity. Furthermore, ecosystem productivity was better explained by inter-individual spectral complementarity than by the large spectral space occupied by productive individuals. Our results indicate that spectral hypervolumes of plants can reflect ecological strategies that shape community composition and ecosystem function, and that spectral complementarity can reveal resource-use complementarity.
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