On species accumulation and species-area curves
نویسندگان
چکیده
منابع مشابه
An evolutionary slant on species-area curves.
Uncertainty about the past has made it difficult to evaluate the relative roles of ecological and historical processes in generating species diversity. Although diversity is predicted to be higher on larger islands compared with that on smaller islands because of the effect of area on immigration and extinction rates, ecological theories do not fully account for positive species–area relationsh...
متن کاملEstimating abundance-based generalized species accumulation curves
An important but difficult problem in ecological studies is estimating species richness, i.e., the number of species in an assemblage based on an incomplete survey (Colwell and Coddington 1994). The same problem also arises from various other scientific fields (Bunge and Fitzpatrick 1993). In the survey, individuals are selected from the species assemblage and their species identities are recog...
متن کاملIsland species–area relationships and species accumulation curves are not equivalent: an analysis of habitat island datasets
Conservation Biogeography and Macroecology Programme, School of Geography and the Environment, University of Oxford, Oxford OX1 3QY, UK, CE3C – Centre for Ecology, Evolution and Environmental Changes / Azorean Biodiversity Group and Universidade dos Açores, Departamento de Ciências Agrárias, Angra do Heroísmo, Açores 9700-042, Portugal, Department of Ecology and Taxonomy, Faculty of Biology, Na...
متن کاملInterpolating, Extrapolating, and Comparing Incidence-based Species Accumulation Curves
A general binomial mixture model is proposed for the species accumulation function based on presence–absence (incidence) of species in a sample of quadrats or other sampling units. The model covers interpolation between zero and the observed number of samples, as well as extrapolation beyond the observed sample set. For interpolation (samplebased rarefaction), easily calculated, closed-form exp...
متن کاملSpecies accumulation curves and their applications in parasite ecology.
Species accumulation curves (SACs) chart the increase in recovery of new species as a function of some measure of sampling effort. Studies of parasite diversity can benefit from the application of SACs, both as empirical tools to guide sampling efforts and predict richness, and because their properties are informative about community patterns and the structure of parasite diversity. SACs can be...
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ژورنال
عنوان ژورنال: Global Ecology and Biogeography
سال: 2004
ISSN: 1466-822X
DOI: 10.1111/j.1466-822x.2004.00138.x