Big data for Global Change Ecology (Biogeography)

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Presentation transcript:

Big data for Global Change Ecology (Biogeography) Digital Environmental Map from remote sensing (active / passive) DataOne.org Continental-scale: Satellite maps (NASA MODIS) 500m to 1 km pixel resolution Regional-scale: Landsat OLI (30m) Local-scale: LiDAR (3 feet) Species occurrence data The Global Biodiversity Information Facility (GBIF): https://www.gbif.org/ - the largest and most widely known source of species records (Costello et al., 2013) Plant community data VegBank/ EVA (European Vegetation Archive) Forest Inventory and Analysis (FIA database) - Oracle DB

Forest Inventory and Analysis (FIA) Sampling procedures: Forest health One plot per 96,000 acres (Every 16th phase 2 plot) Ground plot One plot per 6,000 acres Remote sensing Stratification Plot design:

Species Richness from FIA 1. Tally trees are from the four sub-plots: (i.e. all live trees with stems ≥12.7 cm in diameter measured at 1.4 m above ground). 2. All grids (50 km by 50 km) containing greater than 10 FIA plots were included to estimate species richness 3. For each grid, logarithmic functions developed between total number of species and number of plots 4. Then the estimates of species richness were standardized for one hectare (area equivalent to 17 FIA plots) based on the cell-specific slope and intercept of the logarithmic function.