Publication type: Article in scientific journal
Type of review: Peer review (publication)
Title: Shift from trait convergence to divergence along old field succession
Authors: Backhaus, Lindsay
Albert, Georg
Cuchietti, Anibal
Jaimes Nino, Luisa Maria
Fahs, Nina
Lisner, Aleš
Kolář, Vojtěch
Kermavnar, Janez
Widmer, Stefan
Zimmermann, Zita
Rofrics, Nora
de Bello, Francesco
Lepš, Jan
García Medina, Nagore
et. al: No
DOI: 10.1111/jvs.12986
Published in: Journal of Vegetation Science
Volume(Issue): 32
Issue: 2
Page(s): 1
Pages to: 13
Issue Date: 2021
Publisher / Ed. Institution: Wiley
ISSN: 1100-9233
1654-1103
Language: English
Subjects: Environmental filtering; Convergence; Dispersion patterns; Divergence; Spatial scale; Succession; Chronosequence; Functional traits; Old-field; Phylogeny; Niche differentiation; Time scale
Subject (DDC): 577: Ecology
580: Plants (Botany)
Abstract: Aims Ecological theories predict that assembly processes shape communities so that co‐existing species may either be functionally more dissimilar ("divergence") or more similar ("convergence") than expected by chance. Two important factors that are rarely considered in combination are spatial scale and successional stage. Our aim is to identify different functional patterns during succession across spatial scales and to discuss the likely underlying assembly processes. We expect to find convergence due to environmental filtering at early succession, especially at the largest scales, and a tendency towards divergence driven by competitive interactions as succession unfolds and at smaller spatial scales. Location Protected Landscape Area “Bohemian Karst”, Czech Republic. Methods We studied three succession stages (two, eight and 55 years after abandonment). Each field was sampled using 40 1‐m2 quadrats containing 100 pins in a regular grid. We analysed trait dispersion at several combinations of grain and extent and characterised trait similarity using phylogeny and four traits: specific leaf area, leaf dry matter content, height, and seed mass analysed individually and combined using Gower distance (multi‐trait dissimilarity). Results In the youngest field, three of the traits individually and the multi‐trait dissimilarity showed convergence regardless of scale. Phylogeny showed convergence at most spatial scales of the youngest stage. The other two fields showed greater divergence predominantly in the oldest field at the smallest spatial scale. Conclusions The results are mainly congruent with theoretical expectations and provide a valuable example of directional changes from trait convergence to divergence along succession. The scale‐invariant convergence in the early stages of succession seems to be the result of environmental filtering and weaker competitive exclusion. At later stages and particularly at smaller scales, divergence becomes more common, likely because competition limits the trait similarity of species. These results highlight the importance of predictable (non‐random) changes in ecological succession.
URI: https://digitalcollection.zhaw.ch/handle/11475/22160
Fulltext version: Published version
License (according to publishing contract): Licence according to publishing contract
Departement: Life Sciences and Facility Management
Organisational Unit: Institute of Natural Resource Sciences (IUNR)
Appears in collections:Publikationen Life Sciences und Facility Management

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