An acronym for Single Large Over Several Small, the proposal that a single large nature reserve will contain more species than several small reserves with the same total area. Whether this is so depends on the extent to which the species in the small reserves overlap. If there is little overlap between reserves (i.e. each small reserve contains many species that are not found in any of the other reserves), several small reserves may be preferable to a single large one. Small areas of habitat may also afford more protection against disease or the accidental introduction of predators.
Subjects: Zoology and Animal Sciences — Ecology and Conservation.