Rolly pollies, also known as pill bugs or woodlice, are common terrestrial crustaceans found globally. They are recognized by their segmented, oval-shaped bodies and their ability to curl into a tight ball when disturbed, a defense mechanism called conglobation. These small animals play a role in decomposition, breaking down organic matter and returning nutrients to the soil. This guide assists in locating and observing rolly pollies.
Understanding Rolly Pollies
Rolly pollies are not insects; they are more closely related to aquatic crustaceans like lobsters, crabs, and shrimp. Despite living entirely on land, they breathe through gill-like structures on their undersides, which require moisture to function. This physiological need dictates their preference for damp, dark environments, as they cannot retain water efficiently and can quickly dehydrate. They also release ammonia as a gas directly through their exoskeletons to conserve water.
These creatures primarily feed on decaying organic matter, such as rotting leaves, wood, and other plant material. They are scavengers, contributing to the breakdown of dead plants and even consuming animal excrement or dead insects.
Prime Locations for Discovery
To find rolly pollies, focus on areas that are consistently moist, dark, and offer plenty of decaying organic matter. Look under objects on damp ground, as these provide shelter and humidity. Good places include rocks, logs, and pieces of wood. Gently lifting garden pots or stepping stones can also reveal hidden populations.
Leaf litter and mulch beds are common habitats. Explore compost piles. Around the edges of buildings, especially in damp basements or crawl spaces, rolly pollies may seek refuge from drier outdoor conditions. When searching, lift objects carefully to avoid harming the creatures and to observe their natural behavior.
Tips for Observation and Release
Once you locate rolly pollies, observe them gently without causing distress. If you wish to examine them more closely, a spoon or a soft brush can be used to carefully scoop them into a clear container. To create a temporary observation habitat, ensure the container has some damp soil and decaying leaves, mimicking their natural environment. This provides them with moisture and a food source.
Keep the container out of direct sunlight and in a cool spot to prevent desiccation. Rolly pollies cannot survive submerged in water, so avoid overly wet conditions; instead, lightly mist the habitat with a spray bottle to maintain humidity. After observation, return the rolly pollies to their original habitat.