Spatial Data & Mapping Resources

Spatial Data Download

The IUCN Red List of Threatened Species contains global assessments for 116,177 species. More than 79% of these (>92,500 species) have spatial data.

The spatial data provided below are for comprehensively assessed taxonomic groups and selected freshwater groups. It is important to note that some species (such as those listed as Data Deficient) are not mapped and subspecies, varieties and subpopulations are mapped within the parental species. The data are made available in Esri shapefile format and contain the known range of each species, although sometimes the range is incomplete. Ranges are depicted as polygons, except for the freshwater HydroBASIN tables. The shapefiles contain taxonomic information, distribution status, IUCN Red List Category, sources and other details about the maps (see metadata document).

Please note that the files are large and download times can be quite lengthy.

For ease of distribution and downloading, the data are divided by taxonomic groups. Groups that have been comprehensively assessed are those containing >80% species evaluated within the described taxon group.

Freshwater species are mapped to pre-defined river/lake catchment units called HydroBASINS. It is widely accepted that the river/lake catchment is the most appropriate management unit for inland waters. Freshwater species distribution downloads have been provided in two formats: 

1. Freshwater Polygon Groups: These groups comprise of dissolved species distributions of the HydroBASIN ranges (these generalised or aggregated species ranges are provided for compatibility between the other spatial taxon downloads and reducing the size of the files).

2. Freshwater HydroBASIN Tables: These species range tables contain the HydroBASIN ID's field which can be joined to the HydroBASINs spatial data.

The data are made freely available for non-commercial use, to help inform conservation planning and other non-commercial decision-making processes (see Terms and Conditions of Use).

For commercial use of the data, visit IBAT for Business.

For more information about the assessment process, see Red List Assessment Process. Please note that unfortunately, we cannot provide technical support for use of the data in analyses or general GIS support.

For all enquiries about spatial data, please contact the IUCN Red List GIS Unit.

Data last updated : 19th March 2020

Main Dataset Specific Group(s) Description and Species lists

Mammals Click to Download 956MB

Marine Mammals Click to Download 345MB

Includes mammal families for seals, sea lions and walrus, whales, dolphins and porpoises, manatees and dugongs.

Terrestrial Mammals Click to Download 611MB

Excludes mammal families for seals, sea lions and walrus, whales, dolphins and porpoises, manatees and dugongs.

Amphibians Click to Download 505MB

Tailless Amphibians Click to Download 473MB

Species from the order Anura.

Tailed Amphibians Click to Download 28MB

Species from the order Caudata.

Caecilian Amphibians Click to Download 6MB

Species from the order Gymnophiona.


BirdLife International is the IUCN Red List Authority for birds and maintains the most up to date information on global bird distributions. To request a copy of the shapefiles of species range maps for birds, please visit the BirdLife Data Zone.

Reptiles Click to Download 752MB

(not comprehensive)

Sea Snakes Click to Download 47MB

Sea-snakes includes the true sea snakes, mud snakes and file snakes.

Chameleons Click to Download 3.7MB

Species from the family Chamaeleonidae.

Crocodiles and Alligators Click to Download 21MB

Species from the order Crocodylia.

Chondrichthyes (sharks, rays and chimaeras) Click to Download 522MB

Species from the class Chondrichthyes.

Marine Fishes Click to Download 1.61GB

(not comprehensive)

Angelfishes Click to Download 54MB

Species from the family Pomacanthidae.

Bonefishes and Tarpons Click to Download 28MB

Species from the families Albulidae, Elopidae and Megalopidae.

Butterflyfishes Click to Download 108MB

Species from the family Chaetodontidae.

Blennies Click to Download 288MB

Species from the family Blenniidae.

Clupeiformes Click to Download 186MB

Species from the order Clupeiformes.

Damselfishes Click to Download 98MB

Species from the family Pomacentridae.

Groupers Click to Download 350MB

Species from the family Epinephelidae.

Hagfishes Click to Download 3.9MB

Species from the family Myxinidae.

Pufferfishes Click to Download 142MB

Species from the family Tetraodontidae.

Seabreams, Porgies and Picarels Click to Download 141MB

Species from the families Sparidae and Centracanthidae.

Surgeonfishes, Tangs and Unicornfishes Click to Download 103MB

Species from the family Acanthuridae.

Syngathiform fishes (Seahorses & Pipefishes, Ghost Pipefishes, Seamoths, Shrimpfishes, Trumpetfishes, Cornetfishes)Click to Download 251MB

Species from the families Syngnathidae, Aulostomidae, Centriscidae, Fistulariidae, Pegasidae and Solenostomidae.

Wrasses and Parrotfishes Click to Download 401MB

Species from the families: Labridae and Scaridae.

Tunas and Billfishes Click to Download 164MB 

Species from the family Istiophoridae, Scombridae and Xiphiidae.

Other Marine Groups

Cone Snails Click to Download 411MB

Species from the family Conidae.

Reef-forming Corals Click to Download1.3GB

Includes for all warm water reef-building coral species. 

Lobsters Click to Download 440MB

Species from the families Enoplometopidae, Glypheidae, Nephropidae, Palinuridae, Polychelidae and Scyllaridae.

Mangroves Click to Download 89MB

Includes all plant species considered to form part of the mangrove ecosystem.

Sea Cucumbers Click to Download 215MB

Includes all commercial sea cucumber species (class Holothuroidea).

Seagrasses Click to Download 59MB

Includes all seagrass species.

Freshwater Polygon Groups Click to Download 5.29GB

(not comprehensive)

Fishes Click to Download 1.43GB

(not comprehensive)

Species from the class Actinopterygii found within freshwater systems.

Molluscs Click to Download 474MB

(not comprehensive)

Species from the phylum Mollusca found within freshwater systems. 

Plants Click to Download 1.03GB

(not comprehensive)

Species from the kingdom Plantae found within freshwater systems. 

Odonata (dragonflies and damselflies) Click to Download 578MB 

(not comprehensive)

Species from the order Odonata.

Shrimps Click to Download 77MB

Shrimp species found within freshwater systems.

Crabs Click to Download 56MB

Crab species found within freshwater systems. 

Crayfishes Click to Download 43MB

Crayfish species found within the freshwater system. 

Freshwater HydroBASIN Tables Click to Download 206MB

(not comprehensive)

Fishes Click to Download 43MB

(not comprehensive)

HydroBASIN table for species from the class Actinopterygii found within freshwater systems.

Molluscs Click to Download 19MB

(not comprehensive)

HydroBASIN table for species from the phylum Mollusca found within freshwater systems.

Plants Click to Download 69MB

(not comprehensive)

HydroBASIN table for species from the kingdom Plantae found within freshwater systems.

Odonata (dragonflies and damselflies) Click to Download 36MB

(not comprehensive)

HydroBASIN table for species from order Odonata.

Shrimps Click to Download 4.1MB 

HydroBASIN table for shrimp species found within freshwater systems.

Crabs Click to Download 3.9MB

HydroBASIN table for crab species found within freshwater systems.

Crayfishes Click to Download 3.3MB 

HydroBASIN table for crayfish species found within freshwater systems. 

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