Bait

Definition

Any appetizing substance or stimulus used to attract animals, especially in the context of trapping, sampling, or behavioral observation. In entomology and arachnology, baits exploit chemical, visual, or thermal cues to lure target species for collection, population monitoring, or experimental study. Baits range from whole food items to synthetic pheromones and may be deployed passively or actively depending on research goals.

Etymology

Middle English beyte, from Old Norse beita 'food, bait'

Example

Carrion-baited pitfall traps are used to survey necrophagous beetles (Silphidae, Staphylinidae) and forensic entomology indicator species; fermented fruit baits attract Drosophila and tephritid fruit flies for biodiversity surveys and pest monitoring.

Synonyms

• attractant
• lure

Related Terms

• trap
• Pheromone
• Kairomone
• synomone
• pitfall trap
• Malaise trap
• baited trap
• feeding attractant
• aggregation pheromone

Usage Notes

Distinguished from lures in common parlance—baits are typically ingestible food substrates, whereas lures may be non-nutritive chemical or visual stimuli (e.g., light traps, pheromone dispensers). In strict entomological usage, the distinction often blurs; 'bait' frequently encompasses both. Bait efficacy varies with target guild: protein baits for calliphorid flies, sugar-yeast fermentations for Lepidoptera and Hymenoptera, and dung or carrion for scarab beetles and burying beetles. Bias warning: baited samples reflect attraction radius and competitive displacement, not absolute abundance.