Intraspecific:
- Because there are many species of annelids this leaves them plenty of room to have intraspecific competition.
- Often a situation like this will occur when there are many annelids in one geographical area, they all need to have the resources they require to live, however sometimes when there are so many of them they need to compete for said resources.
- This results in them having an intraspecific competition.
- Annelids interact with many different species due to the variety of worms that are included in the annelid family.
- Leeches are often attaching themselves onto humans and many other organisms feeding off of their blood.
- Earthworms interact with humans when being used for bait. There are also games of getting earthworms to emerge from the ground.
- Earthworms also interact with other animals like birds which are one of their main predators.
- Marine worms interact with other species while they eat the sludge on the sea floor.