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.

See also