The Arctic realm is one of the planet's twelve marine realms, as designated by the WWF and Nature Conservancy. It includes the coastal regions and continental shelves of the Arctic Ocean and adjacent seas, including the Arctic Archipelago, Hudson Bay, and the Labrador Sea of northern Canada, the seas surrounding Greenland, the northern and eastern coasts of Iceland, and the eastern Bering Sea.
The Arctic realm transitions to the Temperate Northern Atlantic realm in the Atlantic Basin, and the Temperate Northern Pacific realm in the Pacific Basin.
Ecoregions[edit]
The Arctic realm is further subdivided into 19 marine ecoregions:[1]
- North Greenland
- North and East Iceland
- East Greenland Shelf
- West Greenland Shelf
- Northern Grand Banks-Southern Labrador
- Northern Labrador
- Baffin Bay-Davis Strait
- Hudson Complex
- Lancaster Sound
- High Arctic Archipelago
- Beaufort-Amundsen-Viscount Melville-Queen Maud
- Beaufort Sea-continental coast and shelf
- Chukchi Sea
- Eastern Bering Sea
- East Siberian Sea
- Laptev Sea
- Kara Sea
- North and East Barents Sea
- White Sea
References[edit]
- ^ Mark D. Spalding; Helen E. Fox; Gerald R. Allen; Nick Davidson; et al. (2007). "Marine Ecoregions of the World: A Bioregionalization of Coastal and Shelf Areas". BioScience. 57 (7): 573–583. doi:10.1641/B570707. S2CID 29150840.
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction