Hill–Chao numbers allow decomposing gamma multifunctionality into alpha and beta components

Research output: Journal contributionsJournal articlesResearchpeer-review

Authors

  • Anne Chao
  • Chun-Huo Chiu
  • Kai-Hsiang Hu
  • Fons van der Plas
  • Marc W. Cadotte
  • Oliver Mitesser
  • Simon Thorn
  • Akira S. Mori
  • Michael Scherer-Lorenzen
  • Nico Eisenhauer
  • Claus Bässler
  • Benjamin Delory
  • Heike Feldhaar
  • Andreas Fichtner
  • Torsten Hothorn
  • Marcell K. Peters
  • Kerstin Pierick
  • Goddert von Oheimb
  • Jörg Müller
Biodiversity–ecosystem functioning (BEF) research has provided strong evidence and mechanistic underpinnings to support positive effects of biodiversity on ecosystem functioning, from single to multiple functions. This research has provided knowledge gained mainly at the local alpha scale (i.e. within ecosystems), but the increasing homogenization of landscapes in the Anthropocene has raised the potential that declining biodiversity at the beta (across ecosystems) and gamma scales is likely to also impact ecosystem functioning. Drawing on biodiversity theory, we propose a new statistical framework based on Hill–Chao numbers. The framework allows decomposition of multifunctionality at gamma scales into alpha and beta components, a critical but hitherto missing tool in BEF research; it also allows weighting of individual ecosystem functions. Through the proposed decomposition, new BEF results for beta and gamma scales are discovered. Our novel approach is applicable across ecosystems and connects local- and landscape-scale BEF assessments from experiments to natural settings.
Original languageEnglish
Article numbere14336
JournalEcology Letters
Volume27
Issue number1
Number of pages14
ISSN1461-023X
DOIs
Publication statusPublished - 01.2024

Bibliographical note

Funding Information:
The authors thank the Senior Editor (John Drake), the Editor (Jason Matthiopoulos) and four reviewers (Robert Bagchi and three anonymous) for providing very thoughtful and constructive comments, which have led to substantial improvement in this paper. The publication was produced as part of two workshops of the BETA‐FOR Research Unit, funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)—459717468. Open Access funding enabled and organized by Projekt DEAL.

Publisher Copyright:
© 2023 The Authors. Ecology Letters published by John Wiley & Sons Ltd.

    Research areas

  • Ecosystems Research - alpha multifunctionality, beta multifunctionality, BETA-FOR project, diversity decomposition, ecosystem functions, gamma multifunctionality, Hill numbers, species diversity

DOI

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