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<p><i>Carex pseudocyperus</i> is a wetland species listed in the European and IUCN Plant Red Lists. However, its distribution and vegetation affinity are poorly known in Slovakia. We aimed to revise the chorology of this sedge species at a national level using all available herbarium, literature and field records and to provide vegetation synthesis of phytosociological relevés with its occurrence. Most species records occurred in the lowlands of south-western and eastern Slovakia (Pannonian phytogeographical region), whereas they were less common in the northern and mountainous regions. Although several past localities disappeared and many other species populations were reduced, <i>C. pseudocyperus</i> was also newly found in natural and anthropogenic habitats. TWINSPAN classification divided the dataset of 161 phytosociological relevés into 4 clusters of forest and shrub vegetation and 9 clusters of non-forest vegetation. Forest and shrub vegetation were syntaxonomically identified as follows: (1) alliance <i>Alnion incanae,</i> (2) transition between first and third group, (3) alliance <i>Alnion glutinosae</i>, and (4) alliance <i>Salicion cinereae</i>. The species composition of the non-forest plant communities was much more heterogeneous and interpreted as: (1) alliance <i>Charion vulgaris</i>, (2) class <i>Lemnetea</i>, (3) alliance <i>Carici</i>-<i>Rumicion hydrolapathi</i>, (4) alliance <i>Eleocharito palustris-Sagittarion sagittifoliae</i>, (5) alliance <i>Phragmition communis</i>, (6) alliances <i>Magnocaricion elatae</i> and <i>Magnocaricion gracilis</i>, (7) alliance <i>Bidention tripartitae</i>, (8) order <i>Nanocyperetalia</i> and (9) alliance <i>Molinion caeruleae</i>. Vegetation analysis revealed that the species in Slovakia predominantly occupied riparian forest and non-forest marshy vegetation, with sporadic occurrence in other plant communities. It exhibited a particularly high frequency and cover in alder swamp forests (<i>Alnion glutinosae</i> alliance) and marshy vegetation of the <i>Phragmito-Magnocaricetea</i> class. <i>Carex pseudocyperus</i> should be of conservation or at least monitoring concern, as it inhabits different wetland and floodplain ecosystems susceptible to ongoing human pressure and environmental changes.</p>

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A comprehensive study of the sedge species Carex pseudocyperus in Slovakia: distribution and syntaxonomy

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年10月7日

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  • Monika Majerová,
  • Richard Hrivnák,
  • Jana Májeková,
  • Michal Slezák

摘要

Carex pseudocyperus is a wetland species listed in the European and IUCN Plant Red Lists. However, its distribution and vegetation affinity are poorly known in Slovakia. We aimed to revise the chorology of this sedge species at a national level using all available herbarium, literature and field records and to provide vegetation synthesis of phytosociological relevés with its occurrence. Most species records occurred in the lowlands of south-western and eastern Slovakia (Pannonian phytogeographical region), whereas they were less common in the northern and mountainous regions. Although several past localities disappeared and many other species populations were reduced, C. pseudocyperus was also newly found in natural and anthropogenic habitats. TWINSPAN classification divided the dataset of 161 phytosociological relevés into 4 clusters of forest and shrub vegetation and 9 clusters of non-forest vegetation. Forest and shrub vegetation were syntaxonomically identified as follows: (1) alliance Alnion incanae, (2) transition between first and third group, (3) alliance Alnion glutinosae, and (4) alliance Salicion cinereae. The species composition of the non-forest plant communities was much more heterogeneous and interpreted as: (1) alliance Charion vulgaris, (2) class Lemnetea, (3) alliance Carici-Rumicion hydrolapathi, (4) alliance Eleocharito palustris-Sagittarion sagittifoliae, (5) alliance Phragmition communis, (6) alliances Magnocaricion elatae and Magnocaricion gracilis, (7) alliance Bidention tripartitae, (8) order Nanocyperetalia and (9) alliance Molinion caeruleae. Vegetation analysis revealed that the species in Slovakia predominantly occupied riparian forest and non-forest marshy vegetation, with sporadic occurrence in other plant communities. It exhibited a particularly high frequency and cover in alder swamp forests (Alnion glutinosae alliance) and marshy vegetation of the Phragmito-Magnocaricetea class. Carex pseudocyperus should be of conservation or at least monitoring concern, as it inhabits different wetland and floodplain ecosystems susceptible to ongoing human pressure and environmental changes.