 In common with many basidiomycetes and Glomeromycota, some ascomycetes form symbioses with plants by colonizing the roots to form mycorrhizal associations.The Ascomycota also represents several carnivorous fungi, which have developed hyphal traps to capture small protists such as amoebae, as well as roundworms ("Nematoda"), rotifers, tardigrades, and small arthropods such as springtails ("Collembola").The Ascomycota are represented in all land ecosystems worldwide, occurring on all continents including Antarctica.