Pavel Širka

Dr. Pavel Širka

orcid

Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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20 November 2024 in Ecological Indicators
Verified
Journal Article
Open access
Ivana SvitkováIvana Svitková
Ivana Svitková
MSMarek Svitok
Marek Svitok
TČTomáš Čejka
Tomáš Čejka
PŠPavel Širka
Pavel Širka
DGDobromil Galvánek
Dobromil Galvánek
Richard HrivnákRichard Hrivnák
Richard Hrivnák

1 January 2024 in Botanica Serbica
Verified
Journal Article
Open access
PDF file
Marko S. SabovljevicMarko S. Sabovljevic
Marko S. Sabovljevic
JPJovana P. Pantović
Jovana P. Pantović
PŠPavel Širka
Pavel Širka
MVMilorad M Vujicic
Milorad M Vujicic
Aneta D. SabovljevićAneta D. Sabovljević
Aneta D. Sabovljević
BPBeáta Papp
Beáta Papp
The new extinction risk assessments of the mosses of Serbia have been completed. Based on the available data, 27.18% of Serbian moss flora (174 species) is under threat (status 2024). Nearly 20% (129 species) of Serbian moss flora is considered to be Data Deficient (DD) and 5.16% (33 species) Near Threatened (NT). These findings clearly indicate the urgent need for field investigation and species biology research in order to define the major threats and adequate conservation measures.

20 October 2024 in People and Nature
Verified
Journal Article
Open access
MJMonika Janišová
Monika Janišová
MMMartin Magnes
Martin Magnes
IBIgor Bojko
Igor Bojko
LBLiubov M. Borsukevych
Liubov M. Borsukevych
VBVasyl V. Budzhak
Vasyl V. Budzhak
PDPolina Dayneko
Polina Dayneko
We investigated farming practices and grassland plant diversity patterns in the historical regions of Maramureș and Bukovina, located in the central Eastern Carpathians of Romania and Ukraine. We explored the influence of social and historical factors on recent grassland plant diversity, including changes and modifications in land use and grassland management practices. We used stratified random sampling to select 48 grassland parcels in eight villages on the Ukrainian‐Romanian borderlands. We identified the factors that affect the composition and diversity of grassland vascular plants and bryophytes at multiple spatial scales and compared the frequency and timing of historical and recent grassland management practices to distinguish between preserved and modified agricultural traditions. In most of the grassland parcels studied (83% in Romania and 78% in Ukraine), traditional land use persisted. Local plant species richness was primarily influenced by management practices, outweighing the impact of topography and soil factors. Regular mowing at appropriate intensity increased the richness of vascular plants, while grazing promoted the richness of bryophyte species. Modifications to farming systems, observed in all studied villages, were mainly due to declining population and livestock numbers. Although the timing of spring and autumn grazing in hay meadows still adhered to tradition, mowing schedules shifted earlier, especially for the first cut of two‐cut hay meadows. Traditional corralling, fertilization and hayseed application have become rare or discontinued in certain villages, while controlled burning has increased. Past use of mineral fertilizers in Ukrainian villages during the Soviet era influenced the recent diversity and composition of vascular plant species, favouring nutrient‐demanding species. Social factors and agricultural policies indirectly affect biodiversity in semi‐natural grasslands, leaving a tangible footprint even in the most remote areas of the Carpathian Mountains. We provide basic recommendations to preserve the remarkable biodiversity of the region. Read the free Plain Language Summary for this article on the Journal blog.

22 January 2021 in Biologia
Verified
Journal Article
Open access
PDF file
KMKatarína Mišíková
Katarína Mišíková
KGKatarína Godovičová
Katarína Godovičová
PŠPavel Širka
Pavel Širka
RŠRudolf Šoltés
Rudolf Šoltés
The presented checklist and red list include 231 liverwort (Marchantiophyta) and two hornwort species (Anthocerotophyta). Overall, 22.9% of liverworts are evaluated as threatened (CR – 4.3%, EN – 7.8%, VU – 10.8%), while 17 of species (7.4%) are categorized as NT, 11.6% as DD and 3.0% as RE. A total of 128 species (55.4% of the liverwort flora of Slovakia) were assessed as LC. For the liverwort Lunularia cruciata the criteria were not applicable (NA), since this species is not native to Slovakia. Currently, only two hornworts are known in Slovakia, of which Anthoceros agrestis is assessed as LC and Phaeoceros carolinianus as NT. The main factors of the liverwort and hornwort endangerment and retreat are anthropogenic changes in natural conditions and degradation of the ecosystems caused by agriculture, forestry, aquaculture, climatic changes, industry, and traffic pollution.

22 October 2024 in Biological Conservation
Verified
Journal Article
Closed access
MJMonika Janišová
Monika Janišová
ASAnnemarie Sorescu-Marinković
Annemarie Sorescu-Marinković
SASvetlana Branko Aćić
Svetlana Branko Aćić
BHBarbora Hubáčková
Barbora Hubáčková
MMMartin Magnes
Martin Magnes
PŠPavel Širka
Pavel Širka

1 October 2024 in Journal of Bryology
Verified
Journal Article
Closed access
LEL. T. Ellis
L. T. Ellis
MAM. Alataş
M. Alataş
SASk. N. Ali
Sk. N. Ali
DAD. J. Alvarez
D. J. Alvarez
ARA. M. Aponte Rojas
A. M. Aponte Rojas
GWG. Winter
G. Winter