Coupling spectral and resource-use complementarity in experimental grassland and forest communities
| Autor: | John A. Gamon, Jeannine Cavender-Bares, Shan Kothari, Michael D. Madritch, Anna K. Schweiger, Hamed Gholizadeh, Ran Wang, Philip A. Townsend, Jake J. Grossman |
|---|---|
| Přispěvatelé: | University of Zurich |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
010504 meteorology & atmospheric sciences UFSP13-8 Global Change and Biodiversity Spectral space Genetics and Molecular Biology 010603 evolutionary biology 01 natural sciences Spectral line Grassland Ecosystem 910 Geography & travel 0105 earth and related environmental sciences General Environmental Science geography geography.geographical_feature_category General Immunology and Microbiology Ecology Plant community General Medicine 15. Life on land 10122 Institute of Geography Productivity (ecology) Complementarity (molecular biology) General Biochemistry Trait Environmental science General Agricultural and Biological Sciences |
| Popis: | 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, spectral and resource-use complementarity that contribute to ecosystem productivity. In both a prairie grassland and a forest diversity experiment, we delineated N-dimensional hypervolumes using either wavelength-bands of reflectance spectra or foliar traits. First, we compared the hypervolume fraction unique to each species in either spectral or trait space with increasing dimensionality. Then, we investigated the association between the spectral space occupied by individual plants and their growth, as well as the spectral space occupied by plant communities and ecosystem productivity. We show that species are better distinguished in spectral space than in trait space, providing a conceptual basis for identifying plant taxa spectrally. In addition, the spectral space occupied by individuals increased with plant 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. |
| Databáze: | OpenAIRE |
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