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      Airborne laser-guided imaging spectroscopy to map forest trait diversity and guide conservation.

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          Abstract

          Functional biogeography may bridge a gap between field-based biodiversity information and satellite-based Earth system studies, thereby supporting conservation plans to protect more species and their contributions to ecosystem functioning. We used airborne laser-guided imaging spectroscopy with environmental modeling to derive large-scale, multivariate forest canopy functional trait maps of the Peruvian Andes-to-Amazon biodiversity hotspot. Seven mapped canopy traits revealed functional variation in a geospatial pattern explained by geology, topography, hydrology, and climate. Clustering of canopy traits yielded a map of forest beta functional diversity for land-use analysis. Up to 53% of each mapped, functionally distinct forest presents an opportunity for new conservation action. Mapping functional diversity advances our understanding of the biosphere to conserve more biodiversity in the face of land use and climate change.

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          Most cited references37

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          HERBIVORY AND PLANT DEFENSES IN TROPICAL FORESTS

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            Dispersal, environment, and floristic variation of western Amazonian forests.

            The distribution of plant species, the species compositions of different sites, and the factors that affect them in tropical rain forests are not well understood. The main hypotheses are that species composition is either (i) uniform over large areas, (ii) random but spatially autocorrelated because of dispersal limitation, or (iii) patchy and environmentally determined. Here we test these hypotheses, using a large data set from western Amazonia. The uniformity hypothesis gains no support, but the other hypotheses do. Environmental determinism explains a larger proportion of the variation in floristic differences between sites than does dispersal limitation; together, these processes explain 70 to 75% of the variation. Consequently, it is important that management planning for conservation and resource use take into account both habitat heterogeneity and biogeographic differences.
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              Estimation of global leaf area index and absorbed par using radiative transfer models

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                Author and article information

                Journal
                Science
                Science (New York, N.Y.)
                American Association for the Advancement of Science (AAAS)
                1095-9203
                0036-8075
                Jan 27 2017
                : 355
                : 6323
                Affiliations
                [1 ] Department of Global Ecology, Carnegie Institution for Science, 260 Panama Street, Stanford, CA 94305, USA. gpa@carnegiescience.edu.
                [2 ] Department of Global Ecology, Carnegie Institution for Science, 260 Panama Street, Stanford, CA 94305, USA.
                [3 ] Dirección General de Ordenamiento Territorial, Ministerio del Ambiente, San Isidro, Lima, Perú.
                Article
                355/6323/385
                10.1126/science.aaj1987
                28126815
                ffa9d9c1-8029-41d4-9cf2-2992be2f702d
                History

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