1. Modeling α- and β-diversity in a tropical forest from remotely sensed and spatial data
- Author
-
J. Alberto Gallardo-Cruz, Javier Bello-Pineda, J. Luis Hernández-Stefanoni, Duccio Rocchini, J. Omar López-Martínez, Jorge A. Meave, Hernández-Stefanoni JL, Gallardo-Cruz JA, Meave JA, Rocchini D, Bello-Pineda J, and López-Martínez JO
- Subjects
Global and Planetary Change ,Diversity ,Species distribution ,Diversità ,Biodiversity ,Plant community ,Management, Monitoring, Policy and Law ,Remote sensing ,Telerilevamento ,Regression kriging ,Geography ,Habitat ,PCNM analysis ,Settore BIO/07 - ECOLOGIA ,Spatial variability ,Species richness ,Computers in Earth Sciences ,Image texture ,Spatial analysis ,Cartography ,Earth-Surface Processes ,Global biodiversity ,biodiversity - Abstract
Comprehensive information on species distribution and species composition patterns of plant communities is required for effective conservation and management of biodiversity. Remote sensing offers an inexpensive means of attaining complete spatial coverage for large areas, at regular time intervals, and can therefore be extremely useful for estimating both species richness and spatial variation of species composition (α- and β-diversity). An essential step to map such attributes is to identify and understand their main drivers. We used remotely sensed data as a surrogate of plant productivity and habitat structure variables for explaining α- and β-diversity, and evaluated the relative roles of productivity-habitat structure and spatial variables in explaining observed patterns of α- and β-diversity by using a Principal Coordinates of Neighbor Matrices analysis. We also examined the relationship between remotely sensed and field data, in order to map α- and β-diversity at the landscape-level in the Yucatan Peninsula, using a regression kriging procedure. These two procedures integrate the relationship of species richness and spatial species turnover both with remotely sensed data and spatial structure. The empirical models so obtained can be used to predict species richness and variation in species composition, and they can be regarded as valuable tools not only for identifying areas with high local species richness (α-diversity), but also areas with high species turnover (β-diversity). Ultimately, information obtained in this way can help maximize the number of species preserved in a landscape.
- Published
- 2012