Nymph

Nymph is a term used in zoology to refer to the immature form of some invertebrates, particularly insects, which undergo incomplete metamorphosis (hemimetabolism). Nymphs resemble the adults in most ways, except for being smaller and lacking adult characteristics such as wings and genitalia. The nymph stage in some insects may be referred to as the larval stage or pupa stage.

Characteristics

Nymphs undergo a process called molting where they shed their exoskeleton, often multiple times, as they grow. After the final molt, they are considered adults. In some species, nymphs may be sexually mature and capable of reproduction even though they still must molt to reach adult size and form.

Types of Nymphs

Different types of nymphs are named for the type of organism they represent. For example, the nymphs of grasshoppers are often referred to as hoppers and the nymphs of dragonflies are called naiads. Similarly, the nymphs of aquatic insects such as mayflies, stoneflies, and caddisflies are also known as naiads.

Role in Ecosystem

Nymphs play crucial roles in the ecosystem. They serve as a food source for a variety of animals, including birds, mammals, and other insects. Additionally, they help in the decomposition of organic material, contributing to nutrient cycling.

See Also

• Larva
• Pupa
• Metamorphosis
• Insect

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