IAS (Admin.) Mains Geography Biogeography-Factors Influencing World Distribution of Plants and Animals Study Material (Page 9 of 9)

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Other Biogeographic Classifications: MacArthur and Wilson՚s Method, Rapoport՚s Classification, Pielou՚s Classification, Muller՚s Classification, Morrone՚s Classification

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MacArthur and Wilson՚s Method

They laid down the idea of island geography. The name was so given as it explained number of species that would colonize a new uninhabited island. This concept is exclusively ecological and focuses on number of species in an a…

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Euphausiids

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Concept

Euphausiids are small shrimp-like crustaceans. Like other eucarids, they have a carapace (carapace) fused to the entire thorax and have stalked, compound eyes. Their basic body plan includes 5 cephalic, 8 thoracic, and 6 abdominal segments.

The first 2 body regions are fused as a cephalothorax (cephalothorax) . Their cephalic appendages consist of paired 1st

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