Wonders of Wildlife: Red Wiggler | AWF (2024)

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Red Wiggler Worm

Other Common Names:Manure Worm, English Redworm, Soilution Worm, Brandling Worm

Scientific Name:Eisenia fetida

Found in Alabama:Statewide

Diet: Detritivore (feeds on dead organic material)

Red Wiggler in Habitat
Wikimedia - Rob Hille

Click on image to enlarge it

Learn more about...

1st Grade Adaptation and Ecological Role Facts (PPT | PDF)

CLASSIFICATION

What type of animal am I?

  • I am an invertebrate (an animal without a spine or backbone).
  • I am cold-blooded, so I cannot control my body temperature.
  • I do not have a stiff covering on the outside of my body, soI have smooth skin.
  • I breathe through my skin.
  • I have no legs.

Wonders of Wildlife: Red Wiggler | AWF (10)

Scientists use basic traits to group animals into differenttaxonomic classes.

For a taxonomic classification chart comparing key traits of common backyard wildlife,
CLICK HERE!

The Red Wiggler is acl*tELLATE (worm)!
IDENTIFICATION TIPS

Red Wiggler
Wikimedia - Rob Hille

Click on image to enlarge it

ADULT WORM
  • Aults reach 1 - 5 inches in length
  • Dark reddish brown in color
  • Visible bands that alternate in color between light pink or tan and dark reddish brown
  • Babies look similar to adults
ADAPTATIONS
PHYSICAL ADAPTATIONS
Red wigglers have receptors (sensory cells) in their skin:
  • They do not have eyes.
  • They have special organsthat detect how light or dark it is outside, so they can stay underground during the day to avoid the sunlight.
  • They do not have ears.
  • They are able to sense (or feel) vibrations made by the sounds of nearby animals on or within the soil.
  • They also have cells called chemoreceptors that detect chemicals in the soil, allowing them to "taste".
Red wigglers are a similar color as dirt:
  • Their dark red and brown colorationallows them to easily camouflage (blend in with the surrounding environment).
  • This allows them to avoid predators (animals that eat them).
Red wigglers can digest rotting materials:

Red Wigglers in Compost Pile
Callie Martin

Click on image to enlarge it

  • The digestive system of red wigglers allows them to eat dead leaves and other decomposing (rotting) matter (like dead plants and animals) inthe soil and on the ground.
  • They are able to convert these materials into compost (nutrient-rich soil) that plants can use for food.
Red wigglers breath through their moist skin:
  • Worms do not have lungs but instead breathe in oxygen and release carbon dioxide through their skin.
  • They have slimy mucus (slimy substance produced by some organisms)that keeps the skin moist and allows air todissolve on the skin.
  • If they dry out, they suffocate (stop breathing) and die.
Red wigglers have segmented bodies and smooth skin:
  • The round segments(body parts) have many muscles that allow them to move more easily and burrow through the soil.
  • Worms look and feel like they have smooth skin.

  • However, they also have tiny, microscopic (too small to see with the human eye)hairs or bristle-like structures that can be seen with a microscope on each body segment (except the first and last body segment).
  • These tiny hairs are called setae.
  • Setae assist the worms in moving through the soil and overthe ground or surface.
Red wigglers have five hearts:
  • Earthworms have five hearts to pump blood through their body.

All red wigglers have both male and female reproductive organs:
  • There are no maleor female red wiggler worms.
  • They all have the same reproductive organsthat allow them to lay coccoons that contain eggs with baby worms.
BEHAVIORAL ADAPTATIONS
Red wigglers are nocturnal:
  • They are active during the night (nocturnal).
  • At night they can emerge from the soil to eat dead leaves and other decomposing plant material alongthe ground.
  • They must stay underground during the day so they won't dry out and die in the sunlight.
Red wigglers have a defense mechanism (a way to defend themselves from predators):
  • If spotted or disturbed, they produce a foul-smelling yellowish fluid.
LIFE CYCLE

Egg:
  • Red wiggler wormslay a cocoon that contains 8 to 20 soft-shelled eggs.
  • The cocoon is buried in the top layer of the soil.

Red Wiggler Cocoons
courtesy of RedWormComposting.com

Click on image to enlarge it

Young:
  • Upon hatching from the eggs, the young are independent and look similar to the adults.
Life Span:
  • The average life span for the red wiggler is 1-5 years.
NATURAL
Habitat Needs
ADULTSYOUNG
Food
  • They feed on organic material such as dead plants, live plants, dead animals, and animal waste (poop).
Water
  • They obtain moisture through the moist soil, live plant material, and puddles (at night).
Shelter
  • They are often found just under the top layer of soil.
  • They also take shelter under damp piles of leaves or logs
  • They can also be found in manure (poop) piles
  • The females deposit cocoons (full of eggs)just under the surface of the soil.
Places to Raise Young
  • Cocoons are deposited just under the surface of the soil.
BACKYARD
Habitat Needs
ADULTSYOUNG
Food
  • Provide moist decaying logs and piles of dead leaves.
  • Use vermicompost bins which includeorganic waste such as strips of paper, apple cores, banana peels, coffee grounds, egg shells, etc. (CLICK HERE for full list.)
Water
  • Obtain hydration from moist soil, live plant material, and puddles (at night).
Shelter
  • Provide aLog Decomposition Station with moist soil under decaying logs and dead leaves.
  • Provide aVermicompost Binwith a lid to prohibit (stop) light(Note: A traditional compost pile gets too hot and receives too much light for red wigglers to survive.)
Places to Raise Young
  • They will naturally lay cocoons in log decomposition stations or vermicompost bins.

ECOLOGICAL ROLE
Animals play an important ecological role in the health of habitats and ecosystems.

Food Source:
  • A wide variety of animals feed on red wigglers including birds, mammals, and insects.

Decomposer:
  • Red wigglers and other types of earthworms are decomposers (organisms that assist in the process of turning dead material into nutrients).
  • As worms consume (eat) decaying organic matter (such as dead leaves or decaying tree roots), their digestive system converts the organic matter intocastings (worm poop) that provides important nutrients (food) for the surrounding plants.
Compost:
  • Humans use red wigglers in vermicompost bins to turn scraps like shredded paper, coffee grounds, and egg shells into compost with castings to provide nutrient-rich soil and natural fertilizer for their gardens.
  • The process of using red wigglers to convert organic matter into fertilizer is called vermicomposting.

Soil Improvements:
  • Red wigglers play a role in improving the overall health of the soil by increasing aeration (allowing air to mix with soil), increasing water movement through soil, and cycling nutrients through the soil.
  • When red wigglers move through the soil they form burrows.
  • These burrows remain in the soil, allowing air and water to get into the soil and increasing soil drainage.
  • These burrows also provide space for plant roots to develop, promoting plant growth.
  • The castings left behind by red wigglers contain important nutrients and organic matter for the soil.
  • Red wiggler worms also help with "turning" the soil by helping to mix the top layers of the soil, usually containing pieces of leaves or grass, with the soil underneath.
Soil Quality Indicator:
  • Red wigglers are sensitive to changes in soil conditions and have been useful to scientists in determining the quality of soil.
  • Soils that have been contaminated by toxins (chemical poisons) are likely to have fewer red wigglers and fewer successful cocoons.
  • Scientists can also use the number of successful cocoons in the soil as an indicator of soil contamination.

INFORMATION SOURCES FOR THIS SPECIES

Wonders of Wildlife: Red Wiggler | AWF (16)

Wonders of Wildlife: Red Wiggler | AWF (17)

Wonders of Wildlife: Red Wiggler | AWF (18)

Wonders of Wildlife: Red Wiggler | AWF (19)

Wonders of Wildlife: Red Wiggler | AWF (20)

Wonders of Wildlife: Red Wiggler | AWF (21)

National Wildlife FederationIllinois Cooperative Extension System

Wonders of Wildlife: Red Wiggler | AWF (22)

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Quick Links

  • Alabama Outdoor Classroom Program
  • Student Exploration Links
  • OC Grant Opportunities
  • Alabama OC Schools Map
  • Outdoor Classroom eNewsletter
Wonders of Wildlife: Red Wiggler | AWF (2024)

FAQs

Where can I find red wigglers in the wild? ›

Red Wiggler Worms

Also known as manure worms, this species often live in manure. If this is off-putting, look for them in decaying garden-grown fruit. Red wigglers usually live close to the soil's surface in gardens and lawns, so you probably won't have a challenging time catching them.

What are some interesting facts about red wigglers? ›

Red wigglers breath through their moist skin:

They have slimy mucus (slimy substance produced by some organisms) that keeps the skin moist and allows air to dissolve on the skin. If they dry out, they suffocate (stop breathing) and die.

How many pounds is 1000 red wiggler worms? ›

This is what they calculated: Roughly 1000 mature composting worms equal one pound.

How quickly do red wigglers multiply? ›

The breeding cycle is approximately 27 days from mating to laying eggs. Worms can double in population every 60 days.

Can you just put red wigglers in your garden? ›

It depends on the size of your garden and the desired outcome. As a general guideline, adding 1 pound of red wigglers per square foot of the garden bed is recommended. This translates to roughly 1,000-2,000 worms for a 4×8 foot raised bed.

How cold is too cold for red wigglers? ›

Red wiggler worms tolerate a temperature range of 40°F to 90°F, but they do best between 55°F and 77°F. Peak composting and reproduction occur between 71 and 89°F. Below 50°F, the worms feed less and become less active. Red wiggler worms are about 75% to 90% water by weight.

How many hearts do red wigglers have? ›

Fun Facts • Red wigglers can eat half their body weight in food scraps a day. Worms have five hearts. Worms have both male and female reproductive organs, but still need another worm to reproduce. One mature worm can give birth to about 100 worms a year.

What is the lifespan of a red wiggler? ›

So, red wiggler worms' life cycle starts as eggs and, naturally, ends after death. Their average life span may be as long as 4 to 5 years. But this may also depend on a few more factors, such as whether you are containing them in unfavorable or favorable conditions or, well, using them as fish bait.

What do red wigglers love? ›

What are Red Wiggler Worms Favorite Foods? Red wigglers favorite foods include most raw/uncooked fruits and vegetables: Bananas, grapes, melon, pears, berries, peaches, apples, and avocado (but not the pit or rinds) Pumpkin, squash, sweet potato.

Can you mix red wigglers and nightcrawlers? ›

Without reading it, basically they'll live together fine since they are in the same species of worm. Only con with mixing is if you're a worm farmer wanting to sell one select specie. Reds better at composting, night crawlers at aerating soil.

How many red wigglers can live in a 5 gallon bucket? ›

5 gallon buckets have a small surface area and can hold ~1,000 red wigglers.

How do you fatten up red wiggler worms? ›

Choose your food source, such as cornmeal or something similar, and soak it in water until it becomes a paste. This paste will serve as a concentrated meal for your red wigglers. Create a trench down the middle of your worm bin, ensuring it's deep enough to hold the paste.

How do you encourage red wigglers to breed? ›

Aeration & moisture content: Nurturing and breeding worms requires careful aeration and the right levels of moisture content. Keep the bedding moist but not waterlogged – damp bedding is the way to go. An ideal humidity of 70%-90% will ensure the healthiest environment for your red worms.

Do red wigglers eat cabbage? ›

Worm Appropriate Foods

Broccoli, brussel sprouts, cabbage, garlic, mushrooms, onions, and scallions should be used in moderation. These foods can cause unpleasant odors.

How deep do red wigglers burrow? ›

Red wigglers only burrow 3-8 inches deep and more horizontally; unlike earthworms who burrow deeper. Red wigglers like temperatures between 55-75 degrees F. An adult red wiggler worm is 2-3 inches long and is dark red. Red wigglers reach maturity after 90 days.

Where are redworms found? ›

This variety will adapt to the worm box environment, but they are really a soil earthworm. Their natural habitat is in soils which contain a lot of organic matter. Redworms are on the market under many different common names.

Are red wigglers native to North America? ›

All common compost worms are non-native (eg. red wigglers, Alabama Jumpers, Hybrid wigglers, African Nightcrawlers). More information about earthworms, their effects on our forests, and what you can do to stop the spread can be found at Great Lakes Worm Watch.

What is the best habitat for red wigglers? ›

Unlike common earthworms that borrow deep into the soil red worms thrive in the first several inches of topsoil directly beneath decomposing vegetative organic matter. It really doesn't matter what the matter is red worms love it. Decaying leaves, grasses, wood, and animal manure are all favorites of red worms.

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