Natural habitat and vegetation types of river gravel bars in the Caucasus Mountains, Georgia

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F20%3A00114219" target="_blank" >RIV/00216224:14310/20:00114219 - isvavai.cz</a>

Výsledek na webu

<a href="https://link.springer.com/article/10.1007/s12224-020-09364-6" target="_blank" >https://link.springer.com/article/10.1007/s12224-020-09364-6</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s12224-020-09364-6" target="_blank" >10.1007/s12224-020-09364-6</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Natural habitat and vegetation types of river gravel bars in the Caucasus Mountains, Georgia

Popis výsledku v původním jazyce

River gravel-bar habitats are highly endangered. They are still well-preserved in the Caucasus, but developing conservation strategies is burdened by the lack of data from this region. We studied vegetation and habitat types on gravel bars of 22 rivers in Georgia, including successional stages from open early-successional herbaceous vegetation to scrub. We distinguished five vegetation types based on vegetation physiognomy and beta-flexible clustering of species composition, and described them as phytosociological vegetation units: Early-successional herbaceous vegetation at higher elevations was described as the new associationEpilobietum colchiciand that at lower elevations as thePetrorhagia saxifraga-Crepis foetidacommunity. The grassland dominated byCalamagrostis pseudophragmitesand scrub vegetation were assigned to the associations previously described from Central Europe (Tussilagini farfarae-Calamagrostietum pseudophragmitae,Salici purpureae-Myricarietum germanicaeandSalici incanae-Hippophaetum rhamnoidis). We established diagnostic plant species for each type using the fidelity calculation and related these types to environmental variables. We further compared them with the previously published data on gravel-bar vegetation from the Russian part of the Caucasus and with European systems of habitat classification. This study demonstrates that vegetation and habitat types occurring in Georgia correspond to those recognized earlier in Europe, and can be easily linked to the European systems of habitat classification. Unlike in other parts of Europe, these habitats are still well-preserved on rivers with natural hydrological dynamics, but they are threatened by plans of dam building and other river regulations. Our study provides baseline data for developing conservation strategies for the Caucasian gravel-bar habitats.

Název v anglickém jazyce

Natural habitat and vegetation types of river gravel bars in the Caucasus Mountains, Georgia

Popis výsledku anglicky

River gravel-bar habitats are highly endangered. They are still well-preserved in the Caucasus, but developing conservation strategies is burdened by the lack of data from this region. We studied vegetation and habitat types on gravel bars of 22 rivers in Georgia, including successional stages from open early-successional herbaceous vegetation to scrub. We distinguished five vegetation types based on vegetation physiognomy and beta-flexible clustering of species composition, and described them as phytosociological vegetation units: Early-successional herbaceous vegetation at higher elevations was described as the new associationEpilobietum colchiciand that at lower elevations as thePetrorhagia saxifraga-Crepis foetidacommunity. The grassland dominated byCalamagrostis pseudophragmitesand scrub vegetation were assigned to the associations previously described from Central Europe (Tussilagini farfarae-Calamagrostietum pseudophragmitae,Salici purpureae-Myricarietum germanicaeandSalici incanae-Hippophaetum rhamnoidis). We established diagnostic plant species for each type using the fidelity calculation and related these types to environmental variables. We further compared them with the previously published data on gravel-bar vegetation from the Russian part of the Caucasus and with European systems of habitat classification. This study demonstrates that vegetation and habitat types occurring in Georgia correspond to those recognized earlier in Europe, and can be easily linked to the European systems of habitat classification. Unlike in other parts of Europe, these habitats are still well-preserved on rivers with natural hydrological dynamics, but they are threatened by plans of dam building and other river regulations. Our study provides baseline data for developing conservation strategies for the Caucasian gravel-bar habitats.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10602 - Biology (theoretical, mathematical, thermal, cryobiology, biological rhythm), Evolutionary biology

Projekt

<a href="/cs/project/GX19-28491X" target="_blank" >GX19-28491X: Centrum pro evropské vegetační syntézy (CEVS)</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Folia Geobotanica

ISSN

1211-9520

e-ISSN

1874-9348

Svazek periodika

55

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

22

Strana od-do

41-62

Kód UT WoS článku

000539841700001

EID výsledku v databázi Scopus

2-s2.0-85086382365