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Fine-grain beta diversity in Palaearctic open vegetation : variability within and between biomes and vegetation types

Title data

Dembicz, Iwona ; Dengler, Jürgen ; Gillet, François ; Matthews, Thomas J. ; Steinbauer, Manuel ; Bartha, Sándor ; Campos, Juan Antonio ; De Frenne, Pieter ; Dolezal, Jiri ; García-Mijangos, Itziar ; Guarino, Riccardo ; Güler, Behlül ; Kuzemko, Anna ; Naqinezhad, Alireza ; Noroozi, Jalil ; Peet, Robert K. ; Terzi, Massimo ; Biurrun, Idoia:
Fine-grain beta diversity in Palaearctic open vegetation : variability within and between biomes and vegetation types.
In: Vegetation Classification and Survey. Vol. 2 (2021) . - pp. 293-304.
ISSN 2683-0671
DOI: https://doi.org/10.3897/VCS/2021/77193

Abstract in another language

Aims: To quantify how fine-grain (within-plot) beta diversity differs among biomes and vegetation types. Study area: Palaearctic biogeographic realm. Methods: We extracted 4,654 nested-plot series with at least four different grain sizes between 0.0001 m2 and 1,024 m2 from the GrassPlot database spanning broad geographic and ecological gradients. Next, we calculated the slope parameter (z-value) of the power-law species–area relationship (SAR) to use as a measure of multiplicative beta diversity. We did this separately for vascular plants, bryophytes and lichens and for the three groups combined (complete vegetation). We then tested whether z-values differed between biomes, ecological-physiognomic vegetation types at coarse and fine levels and phytosociological classes. Results: We found that z-values varied significantly among biomes and vegetation types. The explanatory power of area for species richness was highest for vascular plants, followed by complete vegetation, bryophytes and lichens. Within each species group, the explained variance increased with typological resolution. In vascular plants, adjusted R2 was 0.14 for biomes, but reached 0.50 for phytosociological classes. Among the biomes, mean z-values were particularly high in the Subtropics with winter rain (Mediterranean bi ome) and the Dry tropics and subtropics. Natural grasslands had higher z-values than secondary grasslands. Alpine and Mediterranean vegetation types had particularly high z-values whereas managed grasslands with benign soil and climate conditions and saline communities were characterised by particularly low z-values. Conclusions: In this study relating fine-grain beta diversity to typological units, we found distinct patterns. As we explain in a conceptual figure, these can be related to ultimate drivers, such as productivity, stress and disturbance, which can influence z-values via multiple pathways. The provided means, medians and quantiles of z-values for a wide range of typological entities provide benchmarks for local to continental studies, while calling for additional data from underrepresented units.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Cultural Studies > Department of Sport Science > Professor Sport Ecology
Faculties > Faculty of Cultural Studies > Department of Sport Science > Professor Sport Ecology > Professor Sport Ecology - Univ.-Prof. Dr. Manuel Jonas Steinbauer
Profile Fields > Advanced Fields > Ecology and the Environmental Sciences
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Faculties
Faculties > Faculty of Cultural Studies
Faculties > Faculty of Cultural Studies > Department of Sport Science
Profile Fields
Profile Fields > Advanced Fields
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 500 Natural sciences
500 Science > 570 Life sciences, biology
500 Science > 580 Plants (Botany)
Date Deposited: 10 Jan 2022 14:06
Last Modified: 08 Jun 2022 12:33
URI: https://eref.uni-bayreuth.de/id/eprint/68262