Mesopredator

Part of speech: noun

Definitions

1. A mid-level predator in an ecosystem that preys on smaller animals while also being hunted by larger predators; a carnivore occupying an intermediate position in the food chain; an animal that balances predation and being preyed upon within its ecological niche
2. An organism positioned between top predators and prey species that feeds on lesser animals and faces threats from apex predators; a secondary-level hunter in wildlife hierarchies; a species that functions both as predator and prey in its habitat
3. A carnivorous animal that holds an intermediate rank in the trophic levels by consuming smaller creatures and serving as prey to dominant predators; a mid-trophic carnivore; a species playing a dual role within food webs by hunting and being hunted

Etymology: The word is a modern ecological coinage, built from two parts that both come from ancient Greek. "Meso-" derives from "mesos," meaning "middle," which in turn traces back to the same Proto-Indo-European root that gave English "mid" and "middle." "Predator" comes from Latin "praedator," a plunderer or hunter, formed from "praeda," booty or prey. Put together, "mesopredator" names an animal that sits in the middle of a food chain: it hunts smaller creatures while being hunted by larger ones. The term describes a position in an ecosystem rather than a type of animal. A fox might be a mesopredator in one habitat and a top predator in another, depending on what preys on it. The word is a technical term, and its meaning was set by ecologists who needed a label for this middle tier. The Greek and Latin parts were combined deliberately, as scientific compounds often are, so it does not reflect any ancient usage.

Synonyms: mid-level predator, mid-tier predator

Antonyms: apex predator, top predator