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The shelf surrounding an island is known as an "insular shelf." The continental margin , between the continental shelf and the abyssal plain , comprises a steep continental slope, surrounded by the flatter continental rise , in which sediment from the continent above cascades down the slope and accumulates as a pile of sediment at the base of ...
Profile illustrating the shelf, slope and rise. A continental margin is the outer edge of continental crust abutting oceanic crust under coastal waters.It is one of the three major zones of the ocean floor, the other two being deep-ocean basins and mid-ocean ridges.
Garganornis ballmanni, a very large fossil goose from the Gargano and Scontrone islands of the Late Miocene. Foster's rule, also known as the island rule or the island effect, is an ecogeographical rule in evolutionary biology stating that members of a species get smaller or bigger depending on the resources available in the environment.
Insular dwarfism, a form of phyletic dwarfism, [1] is the process and condition of large animals evolving or having a reduced body size [a] when their population's range is limited to a small environment, primarily islands.
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As a result, there is less diversity in the body size of insular species. Typically small mammals increase in size (for example fossa are a larger insular relative of the mongoose) while typically large mammals decrease in size (for example the Malagasy hippopotamuses are smaller insular relatives of continental hippopotamuses).
The insular lobe is a portion of the cerebral cortex that has invaginated to lie deep within the lateral sulcus. It sits like an island (the meaning of insular ) almost surrounded by the groove of the circular sulcus and covered over and obscured by the insular opercula.
Insular India was an isolated landmass which became the Indian subcontinent. Across the latter stages of the Cretaceous and most of the Paleocene , following the breakup of Gondwana , the Indian subcontinent remained an isolated landmass as the Indian Plate drifted across the Tethys Ocean , forming the Indian Ocean .