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Trait–micro-environment relationships of forest herb communities across Europe

Govaert, Sanne (author)
Meeussen, Camille (author)
Vanneste, Thomas (author)
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Bollmann, Kurt (author)
Brunet, Jörg (author)
Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för sydsvensk skogsvetenskap,Southern Swedish Forest Research Centre
Calders, Kim (author)
Cousins, Sara A. O., 1965- (author)
Stockholms universitet,Institutionen för naturgeografi
De Pauw, Karen (author)
Diekmann, Martin (author)
Graae, Bente J. (author)
Hedwall, Per-Ola (author)
Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för sydsvensk skogsvetenskap,Southern Swedish Forest Research Centre
Iacopetti, Giovanni (author)
Lenoir, Jonathan (author)
Lindmo, Sigrid (author)
Orczewska, Anna (author)
Ponette, Quentin (author)
Plue, Jan, 1982- (author)
Stockholms universitet,Institutionen för naturgeografi
Sanczuk, Pieter (author)
Selvi, Federico (author)
Spicher, Fabien (author)
Verheyen, Kris (author)
Vangansbeke, Pieter (author)
De Frenne, Pieter (author)
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 (creator_code:org_t)
 
2024
2024
English.
In: Global Ecology and Biogeography. - 1466-822X .- 1466-8238. ; 33:2, s. 286-302
Related links:
https://urn.kb.se/re...
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https://doi.org/10.1...
https://res.slu.se/i...
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  • Journal article (peer-reviewed)
Abstract Subject headings
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  • Aim: The microclimate and light conditions on the forest floor are strongly modified by tree canopies. Therefore, we need to better consider the micro-environment when quantifying trait–environment relationships for forest understorey plants. Here, we quantify relationships between micro-environmental conditions and plant functional traits at the community level, including intraspecific trait variation, and their relationship with microclimate air temperature, light and soil properties.Location: Deciduous temperate forests across Europe.Time period: 2018.Major taxa studied: Herbaceous vegetation.Methods: We sampled 225 plots across 15 regions along four complementary gradients capturing both macro- and microclimatic conditions including latitude, elevation, forest management and distance to forest edges. We related the community-weighted mean of five plant functional traits (plant height, specific leaf area [SLA], plant carbon [C], plant nitrogen [N] and plant C:N ratio) across 150 vascular plant species to variation in local microclimate air temperature, light and soil properties. We tested the effect of accounting for intraspecific variation in trait–environment relationships and performed variation partitioning to identify major drivers of trait variation.Results: Microclimate temperature, light availability and soil properties were all important predictors of community-weighted mean functional traits. When light availability and variation in temperature were higher, the herb community often consisted of taller plants with a higher C:N ratio. In more productive environments (e.g. with high soil nitrogen availability), the community was dominated by individuals with resource-acquisitive traits: high SLA and N but low C:N. Including intraspecific trait variation increased the strength of the trait–micro-environment relationship, and increased the importance of light availability.Main conclusions: The trait–environment relationships were much stronger when the micro-environment and intraspecific trait variation were considered. By locally steering light availability and temperature, forest managers can potentially impact the functional signature of the forest herb-layer community.

Subject headings

NATURVETENSKAP  -- Geovetenskap och miljövetenskap -- Naturgeografi (hsv//swe)
NATURAL SCIENCES  -- Earth and Related Environmental Sciences -- Physical Geography (hsv//eng)
NATURVETENSKAP  -- Biologi -- Ekologi (hsv//swe)
NATURAL SCIENCES  -- Biological Sciences -- Ecology (hsv//eng)
NATURVETENSKAP  -- Biologi -- Botanik (hsv//swe)
NATURAL SCIENCES  -- Biological Sciences -- Botany (hsv//eng)
LANTBRUKSVETENSKAPER  -- Lantbruksvetenskap, skogsbruk och fiske -- Skogsvetenskap (hsv//swe)
AGRICULTURAL SCIENCES  -- Agriculture, Forestry and Fisheries -- Forest Science (hsv//eng)

Keyword

community-weighted mean
forest understorey
functional trait
herbaceous layer
intraspecific variation
light availability
microclimate
resource availability
soil properties
trait-environment

Publication and Content Type

ref (subject category)
art (subject category)

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