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A Protocol for Functional Assessment of Whole-Protein Saturation Mutagenesis Libraries Utilizing High-Throughput Sequencing
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Assessing species saturation: conceptual and methodological challenges.

Ingrid Olivares1, Dirk N Karger1,2, Michael Kessler1

  • 1Department of Systematic and Evolutionary Botany, University of Zurich, Zollikerstrasse 107, 8008 Zurich, Switzerland.

Biological Reviews of the Cambridge Philosophical Society
|May 8, 2018
PubMed
Summary

Defining the maximum number of species (species saturation) is challenging due to conceptual and methodological issues. Current studies often have flaws, hindering our understanding of species coexistence limits.

Keywords:
biodiversitycarrying capacitycommunity assemblyequilibriumimmigration-extinctionnichespecies poolspecies-areastability

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Area of Science:

  • Ecology
  • Evolutionary Biology
  • Biodiversity Science

Background:

  • Ecological communities are often assumed to have a maximum number of species they can support.
  • Determining this upper limit, known as species saturation, has been conceptually and methodologically difficult.

Purpose of the Study:

  • To outline the primary challenges in studying species saturation.
  • To review and discuss existing methodological approaches for assessing species saturation.

Main Methods:

  • Identification and discussion of seven general challenges in species saturation research.
  • Review of various methodological approaches, considering their temporal and spatial scales, variables, and assumptions.

Main Results:

  • Significant conceptual and operational challenges exist in defining and measuring species saturation.
  • Existing methodologies for assessing species saturation are diverse but often suffer from critical flaws.

Conclusions:

  • Assessing species saturation is theoretically possible but currently hampered by widespread conceptual and methodological limitations.
  • Further research requires refined definitions and robust methodologies to accurately understand species saturation in ecological assemblages.