Classifying Worm Species. Worms species come in three general categories  Litter dwelling (Epigeic)  Soil dwelling (Endogenic)  Deep burrowing (Anecic)

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Presentation transcript:

Classifying Worm Species

Worms species come in three general categories  Litter dwelling (Epigeic)  Soil dwelling (Endogenic)  Deep burrowing (Anecic)

Identifying Adult Worms  Adult worms have a thickened segment in their mid section that houses their reproductive organs, the clitellum

Litter Dwelling Earthworms  Do not build permanent burrows  Live in and consume the leaf-litter layers of the forest floor  Are typically the kind of worm you would find in a compost heap  Relatively small - between 2 cm and 7 cm long

Soil Dwelling Earthworms  Build permanent burrows and rarely come to the surface  Are unpigmented  Only come to the surface if there is very heavy rainfall

Deep Burrowing Earthworms  Burrow deep into the ground (up to six feet)  Burrows are covered by a pile of feces and leaves called a “midden”  Deeply pigmented with a lighter tail  Adults can grow up to 15 cm long  Typically used as fishing bait

Deep Burrowing Earthworms Burrows

Deep Burrowing Earthworms Midden