Rare shady chasmophytic habitat communities (8210) in Ukraine
Author:
Didukh Yakiv1ORCID, Chorney Illia2ORCID, Budzhak Vasyl3ORCID, Vasheniak Iuliia45ORCID, Bezsmertna Olesya67ORCID, Gleb Ruslan8, Nyporko Svitlana1ORCID
Affiliation:
1. 1 M.G. Kholodny Institute of Botany of the National Academy of Sciences of Ukraine, Kyiv , Ukraine . 2. 2 Yuriy Fedkovych Chernivtsi National University , Chernivtsi , Ukraine . 3. 3 Institute for Evolutionary Ecology of the National Academy of Sciences of Ukraine , Kyiv , Ukraine . 4. 4 Vasyl’ Stus Donetsk National University , Vinnytsia , Ukraine . 5. 5 Masaryk University , Brno , Czech Republic . 6. 6 Taras Shevchenko Kyiv National University , Kyiv , Ukraine . 7. 7 Tsumanska Pushcha National Nature Park , Kivertsi , Volyn region , Ukraine . 8. 8 Carpathian Biosphere Reserve , Rakhiv , Ukraine .
Abstract
Abstract
The characteristics of shaded chasmophytic habitats on calcareous rocks in forest conditions are described, where the forest canopy primarily acts as a shading factor that determines microclimate, humidity and light levels. These communities can be found in deciduous forests of the Carpinion betuli, Fagion sylvaticae and Tilio-Acerion alliances, where they are confined to steep calcareous rock faces and cliffs. Syntaxonomically, these communities belong to the Polypodietea class (Ctenidio-Polypodietalia vulgaris order, Ctenidio-Polypodion vulgaris alliance) and to four informal communities: Isothecium alopecuroides-Polystichum braunii, Porella platyphylla-Asplenium ruta-muraria, Pseudanomodon attenuatus-Chrysosplenium alternifolium and Pedinophyllum interruptum-Polystichum aculeatum. We evaluated indices of environmental parameters according to the synphytoindication method using Didukh’s scales. An assessment of the threat impacts and indicators of sociological significance shows that the habitat belongs to a rare type (II class), and therefore requires specific conservation measures.
Publisher
Walter de Gruyter GmbH
Subject
Plant Science,Ecology, Evolution, Behavior and Systematics,Forestry
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