Navigating the multiple meanings of β diversity: a roadmap for the practicing ecologist
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Abstract
A recent increase in studies of β diversity has yielded a confusing array of concepts, measures and methods. Here, we provide a roadmap of the most widely used and ecologically relevant approaches for analysis through a series of mission statements. We distinguish two types of β diversity: directional turnover along a gradient vs. non-directional variation. Different measures emphasize different properties of ecological data. Such properties include the degree of emphasis on presence/absence vs. relative abundance information and the inclusion vs. exclusion of joint absences. Judicious use of multiple measures in concert can uncover the underlying nature of patterns in β diversity for a given dataset. A case study of Indonesian coral assemblages shows the utility of a multi-faceted approach. We advocate careful consideration of relevant questions, matched by appropriate analyses. The rigorous application of null models will also help to reveal potential processes driving observed patterns in β diversity.
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The record
- Venue
- Ecology Letters
- Topic
- Ecology and Vegetation Dynamics Studies
- Field
- Environmental Science
- Canadian institutions
- University of British Columbia
- Funders
- Natural Sciences and Engineering Research Council of CanadaRoyal Society Te ApārangiU.S. Department of EnergyNational Science Foundation
- Keywords
- MiamiLibrary scienceState (computer science)EcologySociologyEnvironmental ethicsBiologyPhilosophyComputer scienceGeology
- Has abstract in OpenAlex
- yes