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Insular biogeography [1] or island biogeography is a field within biogeography that examines the factors that affect the species richness and diversification of isolated natural communities. The theory was originally developed to explain the pattern of the species–area relationship occurring in oceanic islands.
The study of habitat fragmentation found its roots early, with Aldo Leopold’s ideas on edge effect and Robert MacArthur and E. O. Wilson’s studies and models of island biogeography laying a foundation for the field (Laurance and Bierregaard 1997). These concepts offer potential applicable and hypothetico-deductive value for the study of ...
The Theory of Island Biogeography is a 1967 book by the ecologist Robert MacArthur and the biologist Edward O. Wilson. [1] It is widely regarded as a seminal work in island biogeography and ecology. The Princeton University Press reprinted the book in 2001 as a part of the "Princeton Landmarks in Biology" series. [1]
Frank W. Preston, an early investigator of the theory of the species–area relationship, divided it into two types: samples (a census of a contiguous habitat that grows in the census area, also called "mainland" species–area relationships), and isolates (a census of discontiguous habitats, such as islands, also called "island" species–area ...
The ecological and biogeographical concept of the species pool describes all species available that could potentially colonize and inhabit a focal habitat area. [1] [2] The concept lays emphasis on the fact that "local communities aren't closed systems, and that the species occupying any local site typically came from somewhere else", however, the species pool concept may suffer from the ...
Island ecology is the study of island organisms and their interactions with each other and the environment. Islands account for nearly 1/6 of earth’s total land area, [ 1 ] yet the ecology of island ecosystems is vastly different from that of mainland communities.
Evidence from island biogeography has played an important and historic role in the development of evolutionary biology. For purposes of biogeography , islands are divided into two classes. Continental islands are islands like Great Britain , and Japan that have at one time or another been part of a continent.
Foster's rule, the island rule, or the island effect states that members of a species get smaller or bigger depending on the resources available in the environment. [ 28 ] [ 29 ] [ 30 ] The rule was first stated by J. Bristol Foster in 1964 in the journal Nature , in an article titled "The evolution of mammals on islands".