Besides being food for humans, crayfish are important part of the food chain of the freshwater marshes. They eat both live plants and dead plants and animals.
Native species of crayfish that are are a normal part of the ecosystem are not harmful. But there are several invasive species, like the rusty crayfish, that can kill off native crayfish and other crustacians. The rusty crayfish has a thicker shell and less "meat" and therefore are are not a good part of the food chain depriving the ecosystem of the nutrients from the crustacians it replaces. Invasive species also tend to destroy large amounts of water plants that further degrade the food chain. Also there is an infection that occasionally occurs in crayfish that can spread to other animals but this is usually a normal part of the life cycle and not neccasarily harmful.
it is a food chain that is on land for example lollies are part of the land food chain but fish aren't part of the land food chain they are part of the aquatic food chain.
butterflies are part of the food chain
Yes, they are as anything can be part of the food chain.
they are to be at the top mof their food chain.
Every animal is in the food chain
Second level of the food chain.
it would effect the food chain because one part of the food chain is missing
Yes, all organisms are part of a food chain. My son just had this question on his science test.
what part of the food chain are tiger salamanders