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...however,sea otters feed on the urchins and can prevent them
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Off the coast of western North America, however, sea otters (Enhydra lutris) feed on the urchins and can prevent them from becoming too abundant, thereby keeping the kelp forests intact.
Otters off California help protect kelp forests by preying on sea urchins - but only healthy ones - showing the delicate balance of species in an ecosystem.
Otters eat sea urchins: By feeding on urchins, sea otters keep their populations in check. Fewer urchins mean more kelp: With less grazing pressure, kelp forests can grow and thrive.
The sea otter functions as a keystone species in the environment through its role as a top predator in the nearshore marine ecosystem. Sea urchins are a favorite food of the sea otter if they are locally abundant.
Fur coat marvel: Sea otters have no blubber, relying entirely on their thick fur to insulate them. Kelp-wrapping behavior: They wrap themselves in kelp to prevent drifting while sleeping. Keystone species: By eating sea urchins, they prevent overgrazing of kelp forests, protecting entire marine ecosystems. Tool users: They keep a favorite rock in their armpit pouch to break open shellfish ...
As a keystone species, southern sea otters' prey on the sea urchins and prevent them from destroying the kelp forests. Scientists hypothesize that in the absence of southern sea otters, sea urchins and other kelp-eating species would probably destroy the Pacific coast kelp forests and much of the rich biodiversity they support.
However, after sea otter abundance increased and red urchin density had been greatly depleted, sea otters then began consuming purples and now effectively control purple urchins in the areas of the Island where most foraging occurs.
Instead, these marine mammals primarily feed on sea urchins, clams, crabs, and various fish. Sea otters are vital keystone species, meaning they help maintain the balance of their ecosystem by controlling the population of herbivorous sea urchins that consume kelp.
Otters are a keystone species, meaning their presence or absence strongly affects populations of other species in the area where they live. Along the Pacific coast, sea otters help control the sea urchin population. Fewer sea urchins in turn help prevent kelp forests from being overgrazed.
FAQs: Sea Otter Food Chain - Kelp Forest Guardians Why are sea otters called "kelp forest guardians"? Sea otters eat sea urchins, which are voracious kelp eaters. By controlling the urchin population, sea otters prevent them from overgrazing kelp forests. This vital role in the sea otter food chain protects these underwater ecosystems. What happens if sea otter populations decline? Without ...