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Reassessing the alternative ecosystem states proposition in the African savanna-forest domain

DOI zum Zitieren der Version auf EPub Bayreuth: https://doi.org/10.15495/EPub_UBT_00007973
URN to cite this document: urn:nbn:de:bvb:703-epub-7973-6

Title data

Higgins, Steven I. ; Banerjee, Swarnendu ; Baudena, Mara ; Bowman, David M. J. S. ; Conradi, Timo ; Couteron, Pierre ; Kruger, Laurence M. ; O'Hara, Robert B. ; Williamson, Grant J.:
Reassessing the alternative ecosystem states proposition in the African savanna-forest domain.
In: New Phytologist. Vol. 243 (2024) Issue 5 . - pp. 1660-1669.
ISSN 1469-8137
DOI der Verlagsversion: https://doi.org/10.1111/nph.19911

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Abstract

Summary Ecologists are being challenged to predict how ecosystems will respond to climate changes. According to the Multi-Colored World (MCW) hypothesis, climate impacts may not manifest because consumers such as fire and herbivory can override the influence of climate on ecosystem state. One MCW interpretation is that climate determinism fails because alternative ecosystem states (AES) are possible at some locations in climate space. We evaluated theoretical and empirical evidence for the proposition that forest and savanna are AES in Africa. We found that maps which infer where AES zones are located were contradictory. Moreover, data from longitudinal and experimental studies provide inconclusive evidence for AES. That is, although the forest-savanna AES proposition is theoretically sound, the existing evidence is not yet convincing. We conclude by making the case that the AES proposition has such fundamental consequences for designing management actions to mitigate and adapt to climate change in the savanna-forest domain that it needs a more robust evidence base before it is used to prescribe management actions.

Further data

Item Type: Article in a journal
Keywords: bistability; climate determinism; forecasting; forest; herbivory; savanna; uncertainty; wildfire
DDC Subjects: 500 Science > 500 Natural sciences
500 Science > 570 Life sciences, biology
500 Science > 580 Plants (Botany)
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Chair Plant Ecology > Chair Plant Ecology - Univ.-Prof. Dr. Steven Ian Higgins
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Chair Plant Ecology
Language: English
Originates at UBT: Yes
URN: urn:nbn:de:bvb:703-epub-7973-6
Date Deposited: 08 Oct 2024 06:23
Last Modified: 08 Oct 2024 06:24
URI: https://epub.uni-bayreuth.de/id/eprint/7973

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