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Preslia @preslia.cz · 06/10/2026

What shapes plant species richness in Poland? Machine learning reveals soil potassium and clay content as the strongest predictors across native, red-list and alien floras, highlighting a lasting legacy of Pleistocene glaciation. Human factors shaped neophytes. preslia.cz/doi/preslia.2026.241.html

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Preslia @preslia.cz · 06/10/2026

Habitat specialists matter for both research and conservation. This study identifies 274 vascular plant, bryophyte and macrofungal specialists of Czech fens and bogs, and uses strict specialists to reconstruct a major historical decline of mire habitats. preslia.cz/doi/preslia.2026.209.html

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Preslia @preslia.cz · 29/09/2026

The Czech Vegetation Database goes open access: >117,000 vegetation plots are now online, with a stratified subset for national-scale analyses, an interactive viewer, code for analysis and resampling, and >2.4 million species records in GBIF, ready for reuse. preslia.cz/doi/preslia.2026.187.html

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Preslia @preslia.cz · 22/06/2026

Even extreme dry grasslands on rocky outcrops are not stable. A 30-year resurvey in the Dyje/Thaya valley reveals declines of rare xerophilous species, spread of ruderal and nutrient-demanding plants, and strongest changes outside national parks. preslia.cz/doi/preslia.2026.169.html

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Preslia @preslia.cz · 22/06/2026

Mediterranean Dittrichia graveolens is spreading along Slovak motorways, especially older sections. Its tolerance of mild frost and warmer summers, together with climate change, may support further eastward expansion through road corridors. preslia.cz/doi/preslia.2026.145.html

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Preslia @preslia.cz · 18/06/2026

A new community resource for Alpine botany: flow-cytometric screening of ~45,000 silica-dried samples yielded genome-size and ploidy data for 1,103 plant species. Polyploids were found in 35%, with successful analyses for 97% of species screened. preslia.cz/doi/preslia.2026.127.html

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Preslia @preslia.cz · 25/03/2026

Unique wetlands of the Pannonian Basin host an unexpected Batrachium diversity, including several morphologically cryptic cytotypes unknown elsewhere in central Europe. These lineages are closer to Mediterranean taxa than to their central European neighbours. preslia.cz/doi/preslia.2026.105.html

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Preslia @preslia.cz · 25/03/2026

New distribution maps for 87 vascular plant taxa reveal a flora under pressure: several species now survive at a single Czech site and four are nationally extinct. In contrast, taxonomic revision reveals 22 distinct escaped Cotoneaster species. preslia.cz/doi/preslia.2026.001.html

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Preslia @preslia.cz · 15/12/2025

Garden centres can host surprisingly diverse alien floras, including species not yet recorded in the country. A survey from Hungary shows they can also act as hubs of unintentional introductions and spread, including invasive species. preslia.cz/doi/preslia.2025.659.html

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Preslia @preslia.cz · 15/12/2025

Why are allopolyploids common in Batrachium, but no diploid hybrids? This puzzle is now solved: a large-scale screening uncovered a natural hybrid between diploid species, providing new insight into the early stages of polyploid evolution. preslia.cz/doi/preslia.2025.637.html

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Preslia @preslia.cz · 11/12/2025

Pannonian sand grasslands persist, but their specialists fade. Species adapted to grazing and dry, nutrient-poor soils decline, while generalists and nutrient-demanding species increase, driven by succession, eutrophication and abandoned management. preslia.cz/doi/preslia.2025.613.html

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Preslia @preslia.cz · 09/09/2025

Nine cryptic Aneura lineages confirmed in Slovenia, incl. two new for Europe. Molecular and morphological data reveal overlooked diversity in liverworts and refine species delimitation, distribution, and habitat preferences. preslia.cz/doi/preslia.2025.589.html

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Preslia @preslia.cz · 09/09/2025

In Slovenian semi-dry grasslands, over half of species are clonal. Clonal traits vary with soil conditions and community type, highlighting the need for fine-scale habitat management to preserve species and functional diversity. preslia.cz/doi/preslia.2025.567.html

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Preslia @preslia.cz · 05/09/2025

Spatially uneven sampling of species occurrences can mislead biodiversity research. A new study of Czech flora by Klímová et al. reveals how different methods mitigate the distortions in the patterns of species richness. preslia.cz/doi/preslia.2025.541.html

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Preslia @preslia.cz · 29/08/2025

1,615 alien plant taxa now listed for Austria, +49% in 20 years! Mostly garden escapes or stowaways. The updated checklist includes origins, habitats, impacts, and is a key tool for invasion science and policy. preslia.cz/doi/preslia.2025.413.html

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Preslia @preslia.cz · 14/07/2025

Field surveys across Poland reveal that Neotinea ustulata survives mainly in dry, open grasslands on shallow soils. Habitat extremity, not conservation effort, emerges as the key to persistence of this rapidly declining orchid. preslia.cz/doi/preslia.2025.217.html

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Preslia @preslia.cz · 14/07/2025

A comprehensive survey reveals 61 bramble species in the Bohemian Forest, including 30 new regional records and 5 species new to science. The study highlights remarkable regional endemism and the role of human-made habitats in species distribution.

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Preslia @preslia.cz · 24/06/2025

Lakes in the Alps hide a surprising story: Alpine populations are genetically identical to the Nordic Ranunculus confervoides, yet show unexpected haplotype diversity and novel hybrids, revealing a complex evolutionary history. preslia.cz/doi/preslia.2025.191.html

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Preslia @preslia.cz · 06/03/2025

Pulsatilla grandis is vanishing! A 19-year monitoring study in Czechia revealed a 20% population loss and a 25% decline in flowering individuals. Effective habitat management is crucial to reverse this trend and protect other endangered dry grassland species.

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Preslia @preslia.cz · 05/03/2025

Decline of the most beautiful Czech orchid, and spatial and temporal dynamics of 102 other species in another instalment of the series on the distribution of plants in the Czech Republic. preslia.cz/doi/preslia.2025.175.html

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Preslia @preslia.cz · 03/03/2025

Despite declining SO₂ emissions, acidifying air pollution still impacts epiphytic bryophyte communities in central Europe. Ash trees with higher bark pH hosted richer, more sensitive assemblages but were as affected by SO₂ as oaks. preslia.cz/doi/preslia.2025.157.html

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Preslia @preslia.cz · 28/02/2025

Cytogeography of almost 4800 individuals of aggressive invasive alien Solidago canadensis and S. gigantea in the Western Carpathians and adjacent regions. New cytotypes for invaded range, their probable origin and importance of correct taxonomic identification. preslia.cz/doi/preslia.2025.129.html

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Preslia @preslia.cz · 27/02/2025

Enigmatic Stipa epilosa from the Alps underwent morphometric, AFLP and microhabitat analyses. No genetic or ecological differences between S. eriocaulis and S. epilosa were found, and morphological variation formed a continuum. preslia.cz/doi/preslia.2025.175.html

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Preslia @preslia.cz · 16/12/2024

Expansive plants are native but behave similarly to alien invasive plants and can also have negative impacts. The first catalogue of the expansive flora of the Czech Republic includes 126 taxa, with the regions and habitats, where they spread. preslia.cz/doi/preslia.2024.299.html

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Preslia @preslia.cz · 12/12/2024

Urtica kioviensis is a rare species of river basins. Hybridization with the widespread U. dioica was confirmed at six sites in central Europe. It affects genetic integrity of U. kioviensis and can pose a risk to small populations of this species. preslia.cz/doi/preslia.2024.329.html #hybridization