Bulbs Flower Basics Flower Beds & Specialty Gardens Flower Garden Garden Furniture Garden Gnomes Garden Seeds Garden Sheds Garden Statues Garden Tools & Supplies Gardening Basics Green & Organic Groundcovers & Vines Growing Annuals Growing Basil Growing Beans Growing Berries Growing Blueberries Growing Cactus Growing Corn Growing Cotton Growing Edibles Growing Flowers Growing Garlic Growing Grapes Growing Grass Growing Herbs Growing Jasmine Growing Mint Growing Mushrooms Orchids Growing Peanuts Growing Perennials Growing Plants Growing Rosemary Growing Roses Growing Strawberries Growing Sunflowers Growing Thyme Growing Tomatoes Growing Tulips Growing Vegetables Herb Basics Herb Garden Indoor Growing Landscaping Basics Landscaping Patios Landscaping Plants Landscaping Shrubs Landscaping Trees Landscaping Walks & Pathways Lawn Basics Lawn Maintenance Lawn Mowers Lawn Ornaments Lawn Planting Lawn Tools Outdoor Growing Overall Landscape Planning Pests, Weeds & Problems Plant Basics Rock Garden Rose Garden Shrubs Soil Specialty Gardens Trees Vegetable Garden Yard Maintenance

Niche of an Earthworm

How to Start Lemon Seeds Indoors - watch on youtube
Niche of an Earthworm

Niche of an Earthworm. Every garden needs earthworms. They aerate the soil, fertilize it with their waste and feed on leaves, dirt and other organic matter. They are a source of food for birds, snakes and beetles. Though primitive and humble, the earthworm provides a necessary service in sustaining agriculture. Earthworms belong to the class...

Every garden needs earthworms. They aerate the soil, fertilize it with their waste and feed on leaves, dirt and other organic matter. They are a source of food for birds, snakes and beetles. Though primitive and humble, the earthworm provides a necessary service in sustaining agriculture. Earthworms belong to the class Oligochaeta and the phylum Annelida.
Habitat
Earthworms have been on the planet for more than 80 million years. They prefer warm, moist soil and usually remain just below the surface. They come to the top only during times of rainfall, when their burrows become saturated. Worms mate when they are forced to surface. Though the have both male and female reproductive organs, they reproduce sexually. The pinkish brown swelling on the earthworm's body is called the clitellum. It plays a role in reproduction.
Annelids
Earthworms are the best-known and most complex of the segmented worms. There are more than 9,000 species of segmented worms. They are called annelids, from the Latin word ''annelus,'' which means small rings. These rings, or segments, run along the earthworm's body. Earthworms have the ability to regenerate, or regrow, lost segments. The typical earthworm has about 150 segments and is several inches long, but a giant earthworm species that lives in Australia grows up to 11 feet long.
Anatomy
Each segment, except the first and last, have four pairs of small bristles called setae. The setae help the earthworm move through the soil. Despite their size, earthworms possess a complex digestive system. Food passes into two small organs, where it is ground up, digested and moved into the small intestine. Earthworms have a closed circulatory system with five pairs of hearts. They also have a mouth and a simple brain at the head end and an anus at the tail end.
Purpose
Common earthworms, also called nightcrawlers or angleworms, are beneficial creatures. They improve soil wherever they are present by providing a natural means of aeration. As they move through the ground, they create tunnels. Air and water then pass through these tunnels to the roots of plants. They break down organic matter such as leaves and litter and excrete nitrogen-rich waste that fetilizes the soil. They are a favorite food for robins and a favorite bait for fishermen.
Considerations
Earthworms are adapted to life underground. The soil provides them with a source of nutrition. They absorb oxygen through their thin skin, which is covered with mucus to help it stay moist. They are prone to moisture loss. Though they have no eyes, tiny organs on their head end are sensitive to light. They also have no ears, but respond to vibrations in the soil

Check out these related posts