Keystone Species

A keystone species is a plant or animal that has a disproportionately large impact on its ecosystem relative to its abundance. Removing this species can lead to dramatic changes in the environment and the survival of other species. For example, sea otters control sea urchin populations, which helps maintain healthy kelp forests. Without otters, sea urchins could overgraze the kelp, leading to ecosystem collapse. In essence, keystone species contribute to the structure and health of their habitats, playing a crucial role in biodiversity and ecosystem stability.