Abstract: The faunas of habitat islands, such as those produced by fragmentation of formerly continuous habitats, are commonly made up of nonrandom subsets of the total available species pool. Faunas within an archipelago may form a nested series, with depauperate faunas made up of subsets of more species‐rich faunas. The pattern is seldom perfect: widespread species may be absent from otherwise rich faunas (holes), and uncommon species may occur in depauperate faunas (outliers). The “nestedness” of an assemblage of faunas (its fit to the “nested subset model”; Patterson & Atmar 1986) can be measured by summing the holes and outliers.
Conservation Biology – Wiley
Published: Dec 1, 1991
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