J 2024

The class Adiantetea in Georgia: a rare relict fern community in the South Caucasus

NOVÁK, Pavel, Tomáš PETERKA and Veronika KALNÍKOVÁ

Basic information

Original name

The class Adiantetea in Georgia: a rare relict fern community in the South Caucasus

Authors

NOVÁK, Pavel (203 Czech Republic, guarantor, belonging to the institution), Tomáš PETERKA (203 Czech Republic, belonging to the institution) and Veronika KALNÍKOVÁ

Edition

Biologia, Springer, 2024, 0006-3088

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: 1.500 in 2022

Organization unit

Faculty of Science

UT WoS

001032304100001

Keywords in English

Adiantum capillus-veneris; Bryophyte; Caucasus; Endangered habitat; Phytosociology; Syntaxonomy

Tags

Tags

International impact, Reviewed
Změněno: 28/3/2024 10:56, Mgr. Marie Šípková, DiS.

Abstract

V originále

Relict vegetation of water-splashed petrifying rocks with calcareous tufa formation dominated by the fern Adiantum capillus-veneris and wetland bryophytes (phytosociological class Adiantetea) was investigated in Georgia, Caucasus biodiversity hotspot. The study brings the first phytosociological data on this scarce community in the Caucasus based on a novel dataset of vegetation plot records. A classification analysis revealed two main vegetation communities. They are represented by the Caucasian community recorded in the Mtkvari River valley inside the Tbilisi city (E Georgia) and the Colchic community developed under the humid, warm-temperate climate of Colchis (W Georgia), one of the key refugia of Tertiary flora across W Eurasia. To compare newly recorded vegetation types and so far described associations of the Adiantetea class, we used a broader dataset of the analogous communities reported from Europe and surroundings. It associated the Caucasian community with the pan-Mediterranean association Eucladio-Adiantetum. It was characterized by subhalophytes (e.g. Samolus valerandi), Eucladium verticillatum as a dominant bryophyte, and the absence of relict or endemic vascular plant species. The Colchic community represented a previously undescribed community. Therefore, we designated a new association Saxifrago cymbalariae-Adiantetum capilli-veneris delineated by the characteristic species of the Colchic-Caucasian territory (e.g. Hedera colchica, Saxifraga cymbalaria) and Palustriella commutata as the dominant bryophyte. Both associations belong to the Mediterranean-Atlantic alliance Adiantion. Described communities require conservation attention for their rarity, refugial character and presence of relict and endemic species. Modifications of the hydrological regime and construction activities are among their most important potential threats.

Links

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