J 2021

Plant trait filtering is stronger in the herb layer than in the tree layer in Greek mountain forests

MASTROGIANNI, Anna, Milan CHYTRÝ, Athanasios S. KALLIMANIS and Ioannis TSIRIPIDIS

Basic information

Original name

Plant trait filtering is stronger in the herb layer than in the tree layer in Greek mountain forests

Authors

MASTROGIANNI, Anna, Milan CHYTRÝ (203 Czech Republic, guarantor, belonging to the institution), Athanasios S. KALLIMANIS and Ioannis TSIRIPIDIS

Edition

Ecological indicators, Amsterdam, Elsevier, 2021, 1470-160X

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10600 1.6 Biological sciences

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 6.263

RIV identification code

RIV/00216224:14310/21:00119256

Organization unit

Faculty of Science

UT WoS

000704534800007

Keywords in English

Balkan Peninsula; Forest vegetation; Functional diversity; Functional identity; Functional structure; Greece; Plant traits

Tags

Tags

International impact, Reviewed
Změněno: 6/12/2021 13:13, Mgr. Marie Šípková, DiS.

Abstract

V originále

We studied the differentiation among plant communities of deciduous broadleaved and mountain coniferous forests in terms of functional diversity and identity at a regional scale (northern and central Greece). We asked if patterns of functional differentiation among communities are consistent between the overstorey and understorey layers and if they can be influenced by deep past environmental conditions. Functional Richness (FRic) and Functional Dispersion (FDis), as well as their standardized effect sizes, were employed to assess the multivariate functional diversity of the community types. In contrast, single-trait Community Weighted Means (CWMs) were used as surrogates of functional identity. The aforementioned indices were calculated for three datasets, namely all the vascular plant taxa found in individual vegetation plots (total community), all phanerophyte (tree and shrub) taxa (overstorey) and all non-phanerophyte vascular plant taxa (understorey). We found that community types and especially four broad forest types (beech, ravine, pine and oak forests) are well differentiated in terms of functional composition (identity), as indicated by Non-Metric Multidimensional Scaling (NMDS). After conducting an NMDS for the three datasets, functional identity based on the total floristic composition was found to be the best discriminator of the studied communities. However, contrasting patterns were found for some specific traits or their categories between overstorey and understorey layers. The patterns of functional diversity of the community types (based on multivariate indices), revealed by calculating the standardized effect sizes of FRic and FDis based on the richness null model, did not differ substantially from random expectations for most of the studied community types when the dataset of all the vascular plant taxa was analyzed. However, the patterns revealed for the overstorey layer differed from those for the understorey layer. For the latter layer, the clustered structure was revealed in many community types based on the ses.FDis metric. Indications of deep past influence on the functional composition were found for certain community types (i.e. ravine forests) based on single-trait metrics, but no indication of such influence was found based on multivariate indices. Our findings highlight the complementarity and the additive explanatory value of the simultaneous use of single- and multi-trait approaches and their application to different layers in forests.

Links

GX19-28491X, research and development project
Name: Centrum pro evropské vegetační syntézy (CEVS) (Acronym: CEVS)
Investor: Czech Science Foundation