Methodology
The Amphibian and Mammalian Richness and Threat Levels dataset was created from species distribution shapefiles from the IUCN Red List. The shapefile data is from 2013 and has a spatial resolution of 30 arc seconds (approximately 1 km at the equator). The number in each grid cell represents the number of species present or the number of species threatened within that cell.
CIESIN created the richness and threat level rasters by converting the shapefiles to GeoTIFF rasters based on attributes from the IUCN data. Amphibian and mammalian richness maps were created by aggregating individual species maps with the Extant class attribute. This attribute refers to species that are currently surviving in the wild. Threat level maps were created in the same way using the All Threats IUCN threat category. The All Threats category includes species classified as Critically Endangered (extremely high risk of extinction in the wild), Endangered (very high risk of extinction in the wild ) or Vulnerable (high risk of extinction in the wild). Species within these categories are undergoing reversible declines in population, geographic extent, habitat, and mature individuals. Red List species assessments follow a specific set of guidelines and undergo review before publication.
CIESIN created the richness and threat level rasters by converting the shapefiles to GeoTIFF rasters based on attributes from the IUCN data. Amphibian and mammalian richness maps were created by aggregating individual species maps with the Extant class attribute. This attribute refers to species that are currently surviving in the wild. Threat level maps were created in the same way using the All Threats IUCN threat category. The All Threats category includes species classified as Critically Endangered (extremely high risk of extinction in the wild), Endangered (very high risk of extinction in the wild ) or Vulnerable (high risk of extinction in the wild). Species within these categories are undergoing reversible declines in population, geographic extent, habitat, and mature individuals. Red List species assessments follow a specific set of guidelines and undergo review before publication.
Data description
The Amphibian and Mammalian Richness and Threat Levels dataset shows the species richness and number of threatened species for amphibians and mammals. Species richness is defined by the number of mammal or amphibian species present in a given area. The International Union for the Conservation of Nature (IUCN) Red List defines a threatened species as one that is threatened with global extinction (critically endangered, endangered, or vulnerable). The Red List is the world’s most comprehensive list of species status and extinction risk, with assessments for over 120,000 species. The data shown here evaluated 5,198 amphibian species and 5,488 mammalian species in 2013. Gridded data is available at a spatial resolution of 30 arc seconds, which is approximately 1 kilometer (km) x 1 km at the equator but changes with distance from the equator.
Indicator
Flood protection
Method / tool
Toolkit for Ecosystem Service SiteBased Assessment (TESSA)