Nonparametric species richness estimation under convexity constraint
نویسندگان
چکیده
منابع مشابه
Nonparametric lower bounds for species richness and shared species richness under sampling without replacement.
A number of species richness estimators have been developed under the model that individuals (or sampling units) are sampled with replacement. However, if sampling is done without replacement so that no sampled unit can be repeatedly observed, then the traditional estimators for sampling with replacement tend to overestimate richness for relatively high-sampling fractions (ratio of sample size ...
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Understanding the functional relationship between the sample size and the performance of species richness estimators is necessary to optimize limited sampling resources against estimation error. Nonparametric estimators such as Chao and Jackknife demonstrate strong performances, but consensus is lacking as to which estimator performs better under constrained sampling. We explore a method to imp...
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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.
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ژورنال
عنوان ژورنال: Environmetrics
سال: 2015
ISSN: 1180-4009
DOI: 10.1002/env.2352