The species-accumulation curve and estimation of species richness
نویسندگان
چکیده
منابع مشابه
The Species-Accumulation Curve and Estimation of Species Richness
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متن کاملEffect of species richness and relative abundance on the shape of the species accumulation curve
We explain how species accumulation curves are influenced by species richness (total number of species), relative abundance and diversity using computer-generated simulations. Species richness defines the boundary of the horizontal asymptote value for a species accumulation curve, and the shape of the curve is influenced by both relative abundance and diversity. Simulations with a high proporti...
متن کاملSpecies Richness Estimation
Various models and estimation procedures for estimating the number of species in a community are reviewed under the following sampling schemes: sampling by continuous-type of efforts, sampling by individuals, and sampling by quadrats (or multiple occasions). Applications and relevant software are briefly reviewed.
متن کاملTheoretical derivation of a bias-reduced expression for the extrapolation of the species accumulation curve and the associated estimation of total species richness
Under-sampling becomes the current situation for an increasing part of biodiversity surveys, as more and more speciose assemblages and increasingly complex taxonomic groups are progressively addressed. Accordingly, (i) extrapolating the Species Accumulation Curve and (ii) estimating the total species richness of partially-sampled species assemblages (or taxonomicgroups) both become major issues...
متن کاملEstimating the species accumulation curve using mixtures.
As a significant tool in ecological studies, the species accumulation curve or the collector's curve is the graph of the expected number of detected species as a function of sampling effort. The problem of estimating the species accumulation curve based on an empirical data set arising from quadrat sampling is studied in a nonparametric binomial mixture model. It will be shown that estimating t...
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ژورنال
عنوان ژورنال: Journal of Animal Ecology
سال: 2003
ISSN: 0021-8790,1365-2656
DOI: 10.1046/j.1365-2656.2003.00748.x