Английская Википедия:Eucidaris thouarsii

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Шаблон:Short description Шаблон:Speciesbox

Eucidaris thouarsii, the slate pencil urchin, is a species of cidaroid sea urchins that inhabits littoral regions of the East Pacific Ocean.[1][2]

Distribution and habitat

Файл:Eucidaris thouarsii Santiago.jpg
Eucidaris (thouarsii) galapagensis of the Galápagos, Clipperton and Cocos Islands was formerly included as a subspecies, but is now generally recognized as a separate species

Eucidaris thouarsii is found in the East Pacific at depths of Шаблон:Convert, ranging from Baja California to Panama, as well as Cocos Island, Clipperton Island and the Galápagos Islands.[3][4][5] The Galápagos, Clipperton and Cocos populations are now often recognized as a separate species, E. galapagensis, instead of a subspecies of E. thouarsii.[6]

Diet

Like all urchins these are primarily herbivores, but feed on a wide range of invertebrates.[7] This species has a high nutrient absorption efficiency when it comes to the coral Pocillopora damicornis, but would require a large intake to make nutrient requirements.[8] Due to its high intake of coral, it reduces reef growth.[9]

References

Шаблон:Reflist

External links

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Шаблон:Echinoidea-stub

  1. Шаблон:Cite web
  2. Шаблон:Cite web
  3. Glynn, Wellington, and Birkeland (1979). Coral reef growth in the Galapagos: limitation by sea urchins. Science. 203(4375): 47-49.
  4. Natural History Museum: Eucidaris thouarsii. The Echinoid Directory. Retrieved 11 September 2014.
  5. Reyes-Bonilla, and Calderon-Aguilera (2002). Population Density, Distribution and Consumption Rates of Three Corallivores at Cabo Pulmo Reef, Gulf of California, Mexico. Marine Ecology 20(3-4).
  6. Lessios, Kessing, Robertson, and Paulay (1999). Phylogeography of the pantropical sea urchin Eucidaris in relation to land barriers and ocean currents. Evolution 53: 806-817.
  7. Шаблон:Cite journal
  8. Шаблон:Cite journal
  9. Шаблон:Cite journal