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

NOVÁK, Pavel, Tomáš PETERKA and Veronika KALNÍKOVÁ. The class Adiantetea in Georgia: a rare relict fern community in the South Caucasus. Biologia. Springer, 2024, vol. 79, No 4, p. 1129-1137. ISSN 0006-3088. Available from: https://dx.doi.org/10.1007/s11756-023-01472-w.

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TY  - JOUR
ID  - 2302800
AU  - Novák, Pavel - Peterka, Tomáš - Kalníková, Veronika
PY  - 2024
TI  - The class Adiantetea in Georgia: a rare relict fern community in the South Caucasus
JF  - Biologia
VL  - 79
IS  - 4
SP  - 1129-1137
EP  - 1129-1137
PB  - Springer
SN  - 00063088
KW  - Adiantum capillus-veneris
KW  - Bryophyte
KW  - Caucasus
KW  - Endangered habitat
KW  - Phytosociology
KW  - Syntaxonomy
UR  - https://doi.org/10.1007/s11756-023-01472-w
N2  - 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.
ER  -

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
Original language	English
Type of outcome	Article in a journal
Field of Study	10600 1.6 Biological sciences
Country of publisher	United States of America
Confidentiality degree	is not subject to a state or trade secret
WWW	URL
Impact factor	Impact factor: 1.500 in 2022
Organization unit	Faculty of Science
Doi	http://dx.doi.org/10.1007/s11756-023-01472-w
UT WoS	001032304100001
Keywords in English	Adiantum capillus-veneris; Bryophyte; Caucasus; Endangered habitat; Phytosociology; Syntaxonomy
Tags	rivok
Tags	International impact, Reviewed
Changed by	Changed by: Mgr. Marie Šípková, DiS., učo 437722. Changed: 28/3/2024 10:56.

Abstract

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)
GX19-28491X, research and development project	Investor: Czech Science Foundation

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

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