Category: Everyday Science | Last updated: 2026-09-18
What scientific term refers to a species that has a disproportionately large effect on its natural environment relative to its abundance, often crucial for maintaining ecosystem structure?
A) Indicator species
B) Pioneer species
C) Keystone species
D) Endemic species
Explanation
A keystone species is a species that has a significant impact on its ecosystem, and its removal would lead to dramatic changes or even collapse of the ecosystem, despite its often low abundance.