Habitats
18 IUCN habitat types
Tropical & Subtropical Moist Broadleaf Forests
Tropical & Subtropical Dry Broadleaf Forests
Tropical & Subtropical Grasslands, Savannas & Shrublands
Temperate Grasslands, Savannas & Shrublands
Flooded Grasslands & Savannas
Montane Grasslands & Shrublands
Mediterranean Forests, Woodlands & Scrub
Deserts & Xeric Shrublands
Mangroves
Forest
1Terrestrial habitats dominated by trees forming a closed or nearly closed canopy. Forests include tropical rainforests, temperate deciduous forests, boreal coniferous forests, and mangrove forests, …
Marine Oceanic
10Open ocean waters beyond the continental shelf, from the surface to the mesopelagic zone. This vast habitat supports pelagic species including cetaceans, tunas, sharks, seabirds, …
Marine Deep Ocean Floor
11The benthic zone of the deep ocean below 200m depth, including abyssal plains, hydrothermal vents, and deep-sea trenches. This habitat supports chemosynthetic ecosystems and species …
Marine Intertidal
12The zone between high and low tide marks along coastlines. Intertidal habitats include rocky shores, sandy beaches, mudflats, and salt marshes, supporting organisms adapted to …
Marine Coastal/Supratidal
13Coastal areas above the high-tide mark influenced by sea spray, storm surges, and saline conditions. This includes coastal dunes, sea cliffs, and supratidal pools that …
Artificial - Terrestrial
14Human-created terrestrial habitats including arable land, pastures, plantations, urban areas, parks, and gardens. While heavily modified, these habitats can support significant biodiversity including synanthropic species …
Artificial - Aquatic & Marine
15Human-created aquatic habitats including reservoirs, canals, aquaculture ponds, and water treatment areas. These artificial water bodies can serve as important refugia for waterbirds, amphibians, and …
Introduced Vegetation
16Areas dominated by non-native plant species that have been deliberately or accidentally introduced. This includes invasive monocultures that have replaced native habitats and can significantly …
Other
17Habitats that do not fit into any of the standard IUCN classification categories. This includes transitional zones, novel ecosystems, and environments undergoing rapid change that …
Unknown
18Species whose habitat requirements have not yet been assessed or documented. This category highlights gaps in ecological knowledge and the need for further field research …
Savanna
2Tropical and subtropical grasslands with scattered trees and shrubs. Savannas are characterized by distinct wet and dry seasons, supporting large herbivore populations and iconic predator-prey …
Shrubland
3Habitats dominated by shrubs, including Mediterranean-type shrublands, heathlands, and maquis. These ecosystems are often fire-adapted and support diverse endemic plant species and specialized animal communities.
Grassland
4Open habitats dominated by grasses with few or no trees, including temperate prairies, steppes, and alpine meadows. Grasslands support large grazing mammals, ground-nesting birds, and …
Wetlands (Inland)
5Freshwater habitats where the land is periodically or permanently saturated with water. Inland wetlands include swamps, marshes, bogs, fens, rivers, lakes, and seasonal floodplains, providing …
Rocky Areas
6Terrestrial habitats dominated by rock surfaces, including mountain peaks, cliffs, plateaus, and scree slopes. These environments host specialized species adapted to extreme temperature variations, thin …
Caves and Subterranean Habitats
7Underground habitats including caves, lava tubes, and aquifers. These light-free environments support unique troglobitic and stygobitic fauna with specialized adaptations such as loss of pigmentation …
Desert
8Arid and semi-arid habitats receiving less than 250mm of annual rainfall. Deserts include hot sandy deserts, cold deserts, and coastal fog deserts, supporting drought-adapted species …
Marine Neritic
9Shallow ocean waters over the continental shelf, from the low-tide mark to about 200m depth. The neritic zone includes coral reefs, seagrass beds, and kelp …