Estimating the richness of species with variable mobility

Ulrich Brose, Neo D Martinez

Research output: Contribution to journalArticle

88 Citations (Scopus)

Abstract

The vast majority of species are animals that, unlike most plants and fungi, are variably and often highly mobile. While species' mobility affects species' probabilities of being sampled, effects of movement on the estimation of species richness have yet to be systematically investigated. Information-rich abundance-based estimators may be able to address variably mobile species but the accuracy of these estimators has also yet to be investigated. Here, we address both issues by variably sampling simulated landscapes with up to 250 species and evaluating the performance of ten non-parametric estimators and one species accumulation curve. Our results show that some abundance-based estimators are as accurate as better known and tested incidence-based estimators. Increased movement heterogeneity between the species reduced estimator performance by reducing the sample coverage, which systematically determined which estimator was most accurate. Based on these findings, we present the first decision framework for choosing the most accurate of many available abundance-based species-richness estimators. These decisions, based on data coverage, can significantly improve investigators' ability to estimate faunal species richness.

Original languageEnglish (US)
Pages (from-to)292-300
Number of pages9
JournalOikos
Volume105
Issue number2
DOIs
StatePublished - May 2004
Externally publishedYes

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species diversity
species richness
plant and fungus
incidence
sampling
fungi
animals
decision

ASJC Scopus subject areas

  • Ecology

Cite this

Estimating the richness of species with variable mobility. / Brose, Ulrich; Martinez, Neo D.

In: Oikos, Vol. 105, No. 2, 05.2004, p. 292-300.

Research output: Contribution to journalArticle

Brose, Ulrich ; Martinez, Neo D. / Estimating the richness of species with variable mobility. In: Oikos. 2004 ; Vol. 105, No. 2. pp. 292-300.
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