ENVIRSCI 214 Lecture Notes - Lecture 25: Ecosystem Services, Sloss Debate, Insular Biogeography
14 Apr 2017
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Document Summary
There is much criticism about the island biogeography theory. This theory triggered a tremendous response among biologists. Island biogeography theory stimulated and applied to habitat fragmentation studies. An island can be any kind of isolated area surrounded by a dissimilar habitat. Protected areas are a cornerstone of local, regional and global strategies for the conservation of biodiversity. Small fragments have fewer species than large so work for large reserve. Several small reserves may be valuable to protect local areas of high biodiversity. Habitat heterogeneity is likely a stronger factor in determining species richness than area (anthropods favored) Larger reserves are likely superior for large vertebrates with large ranges. Prioritizing by conservation groups ancient woodlands, unique habitats. Endemic islands- species are unique to a defined geographic location. Core natural area- species conservation takes precedence over other uses. Buffer zones- areas created to enhance protection of the core.
