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Pisaster ochraceus, generally known as the purple sea star, ochre sea star, or ochre starfish, is a common seastar found among the waters of the Pacific Ocean. Identified as a keystone species , P. ochraceus is considered an important indicator for the health of the intertidal zone .
Ochre (/ ˈ oʊ k ər / OH-kər; from Ancient Greek ὤχρα (ṓkhra), from ὠχρός (ōkhrós) 'pale'), iron ochre, or ocher in American English, is a natural clay earth pigment, a mixture of ferric oxide and varying amounts of clay and sand. [2] It ranges in colour from yellow to deep orange or brown.
Ochre sea star at low tide, Saltspring Island, British Columbia. Pisaster (from Greek πίσος, "pea", and ἀστήρ, "star" [1]) is a genus of Pacific sea stars that includes three species, P. brevispinus, P. giganteus, and P. ochraceus. Their range extends along the Pacific coast from Alaska to southern California in the intertidal zone.
Starfish, such as the ochre sea star (Pisaster ochraceus) and the reef sea star (Stichaster australis), have become widely known as examples of the keystone species concept in ecology. The tropical crown-of-thorns starfish ( Acanthaster planci ) is a voracious predator of coral throughout the Indo-Pacific region, and the Northern Pacific ...
The Timbisha of Death Valley called themselves Nümü Tümpisattsi (″Death Valley People″; literally: ″People from the Place of red ochre (face) paint)″) after the locative term for Death Valley which was named after an important red ochre source for paint that can be made from a type of clay found in the Golden Valley a little south of ...
California’s eco-bureaucrats halted a wildfire prevention project near the Pacific Palisades to protect an endangered shrub. It’s just the latest clash between fire safety and conservation in ...
Golden ochre, less often Gold Ochre (French: Ocre d’or, German: Gold Ocker от Ancient Greek: ὠχρός yellow-pale, orange or french ochre (obsolete)) — one of the most famous and brightly colored varieties of ochre — is a natural or (rarely) artificial pigment.
Homeowners are able to buy into a state-created plan, called FAIR, as a last resort, but those policies only cover basic property damage and have a $3 million limit, The Associated Press notes ...