Conventional sampling methods severely underestimate phytoplankton species richness
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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Biodiversity sampling is labor intensive, and a substantial fraction of a biota is often represented by species of very low abundance, which typically remain undetected by biodiversity surveys. Statistical methods are widely used to estimate the asymptotic number of species present, including species not yet detected. Additional sampling is required to detect and identify these species, but ric...
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Species-area relationships have been observed for virtually all major groups of macroorganisms that have been studied to date but have not been explored for microscopic phytoplankton algae, which are the dominant producers in many freshwater and marine ecosystems. Our analyses of data from 142 different natural ponds, lakes, and oceans and 239 experimental ecosystems reveal a strong species-are...
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ژورنال
عنوان ژورنال: Journal of Plankton Research
سال: 2013
ISSN: 1464-3774,0142-7873
DOI: 10.1093/plankt/fbt115