DAR (diversity-area relationship): Extending classic SAR (species-area relationship) for biodiversity and biogeography analyses
نویسندگان
چکیده
منابع مشابه
Extending species-area relationships (SAR) to diversity-area relationships (DAR)
Aim: I extend the traditional SAR, which has achieved status of ecological law and plays a critical role in global biodiversity assessment, to the general (alphaor beta-diversity in Hill numbers) diversity area relationship (DAR). The extension was motivated to remedy the limitation of traditional SAR that only address one aspect of biodiversity scaling—species richness scaling over space. Inno...
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The species-area relationship (SAR) gives a quantitative description of the increasing number of species in a community with increasing area of habitat. In conservation, SARs have been used to predict the number of extinctions when the area of habitat is reduced. Such predictions are most needed for landscapes rather than for individual habitat fragments, but SAR-based predictions of extinction...
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Self-similar distributions of species across a landscape have been proposed as one potential cause of the well-known species-area relationship. The best known of these proposals is in the form of a probability rule for species occurrence. The application of this rule to the number of species occurring in primary well-shaped rectangles within the landscape gives rise to a discrete power law for ...
متن کاملSpecies-area relationship for power-law species abundance distribution
We studied the mathematical relations between species abundance distributions (SADs) and species-area relationships (SARs) and found that a power-law SAR can be generally derived from a power-law SAD without a special assumption such as the “canonical hypothesis”. In the present analysis, an SAR-exponent is obtained as a function of an SAD-exponent for a finite number of species. We also studie...
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ژورنال
عنوان ژورنال: Ecology and Evolution
سال: 2018
ISSN: 2045-7758
DOI: 10.1002/ece3.4425