The Habitat of Red Worms

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According to Jen Fong and Paula Hewitt of the Cornell Waste Management Institute, earthworm species number more than 3,000. Red worms are commonly used in composting because they are natural surface feeders. They often choose composts as their natural habitat.

Types of Red Worms

  • Red worms Eisenia foetida and Lumbricus rubellus are known for being the best worm bin or compost worms because they do not burrow deep, but are natural surface feeders. Eisenia foetida is sometimes known as red worm, or red wriggler, while Lumbricus rubellus is often called red earthworm.

Red Worms' Natural Habitat

  • Red worms thrive on nutrient-rich soil that is not too dry or too moist. They eat their weight in soil every day, and this is one reason why they are such good composters. Their natural habitat is leaves, compost piles, manure and any other decaying materials. The ideal temperature for worms is room temperature, but they can survive in temperatures from 40 degrees Fahrenheit to 90 degrees Fahrenheit.

Differences in Habitat

  • Eisenia foetida are able to tolerate a higher temperature range than Lumbricus rubellus, which can survive a lower temperature. During winter Eisenia foetida require heavy insulation if kept outdoors, while Lumbricus rubellus burrow deeper into the soil and survive colder temperatures.

Re-Creating Their Natural Habitat

  • Composters re-create red worms' natural habitat to take advantage of their ability to recycle food scraps into nutrient-rich soil. A compost can be made from a vermicomposting (worm-composting) kit, a plastic storage container or wood crate. Containers are lined with bedding, either newspaper with nontoxic ink, sawdust, shredded leaves, dried grass, black topsoil or loam. This layer will keep the worms in the container. It should be damp, but not so damp that they will drown. Varying the bedding will create more nutrient-rich soil. Worms need protection from heavy rain, heat and cold. In a compost bin, food scraps are mixed into the bedding for the worms to feed. A compost creates a perfect habitat for the worms, recycles food scraps, reduces waste and creates healthy soil.

Expert Insight

  • When composting, turning the soil too quickly may kill the worms. The assumption that worms can reproduce when cut into two is false, but the two parts will continue to wriggle. The portion with the head may grow a new tail as long as the vital organs were not cut off with the tail. The portion with a tail will eventually die.

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