irruptive

Noun

An organism that is suddenly more prevalent in a region, due to irruption.

Japanese Meaning

急にその地域に多く現れ、突出して見られる生物。つまり、突然の大量発生によりその地域で顕著になる生物を指す。

An irruptive appeared in the marsh this spring, its sudden abundance disrupting the local food web.

今春、急増した種が湿地に現れ、地域の食物網を乱した。

Sense（1）

An organism that is suddenly more prevalent in a region, due to irruption.

Connor advises birders to wait until late in the winter to look for irruptives.

irruptives

（ plural ）