- Marines Systems: Tardigrades are found within intertidal areas to deep sea abysses.
- Freshwater: Hydrophilous Tardigrades are found only in permanent fresh water ecosystems, they are benthic and primarily found on aquatic plants or in sandy sediments in streams, rivers, lakes, and ponds
- Terrestrial Ecosystems: the majority pf tardigrade species inhabit terrestrial ecosystems and can be found in byrophyte cushions, lichens, bark, leaf-litter and soil.
- Freshwater: Hydrophilous Tardigrades are found only in permanent fresh water ecosystems, they are benthic and primarily found on aquatic plants or in sandy sediments in streams, rivers, lakes, and ponds
- Terrestrial Ecosystems: the majority pf tardigrade species inhabit terrestrial ecosystems and can be found in byrophyte cushions, lichens, bark, leaf-litter and soil.