Richness of vascular plants of the American ecoregions as defined in Ecoregions 2017.
A data frame with 227 rows and 22 columns:
ecoregion_id: Id of the ecoregion).
x: Longitude in degrees (WGS84).
y: Latitude in degrees (WGS84).
richness_species_vascular: Number of vascular species found in the ecoregion. Response variable.
bias_area_km2: Area of the ecoregion in squared kilometers.
bias_species_per_record: Number of species divided by the number of spatial GBIF records available in the ecoregion as a measure of sampling bias.
climate_aridity_index_average: Average aridity index of the ecoregion.
climate_hypervolume: Volume of the climatic envelope of the ecoregion, computed with the hypervolume package.
climate_velocity_lgm_average: Average climate velocity of the ecoregion since the Last Glacial Maximum.
neighbors_count: Number of immediate neighbors of the ecoregion as a measure of connectivity/isolation.
neighbors_percent_shared_edge: Percentage of shared edge with the neighbors as a measure of connectivity/isolation.
human_population_density: Population density of the ecoregion.
topography_elevation_average: Average elevation of the ecoregion.
landcover_herbs_percent_average: Average cover percentage of herbs extracted from MODIS Vegetation Continuous Fields.
fragmentation_cohesion: Geographic fragmentation index of the ecoregion as computed with the R package landscapemetrics.
fragmentation_division: Another fragmentation index.
neighbors_area: Total area of the ecoregions's immediate neighbors.
human_population: Human population in the ecoregion.
human_footprint_average: Average human footprint doi: 10.1641/0006-3568(2002)052[0891:THFATL]2.0.CO;2
in the ecoregion.
climate_bio1_average: Average mean annual temperature.
climate_bio15_minimum: Average precipitation seasonality.