2023
Vegetation change in acidic dry grasslands in Moravia (Czech Republic) over three decades: Slow decrease in habitat quality after grazing cessation
HARÁSEK, Martin, Klára KLINKOVSKÁ a Milan CHYTRÝZákladní údaje
Originální název
Vegetation change in acidic dry grasslands in Moravia (Czech Republic) over three decades: Slow decrease in habitat quality after grazing cessation
Autoři
HARÁSEK, Martin (203 Česká republika, domácí), Klára KLINKOVSKÁ (203 Česká republika, domácí) a Milan CHYTRÝ (203 Česká republika, garant, domácí)
Vydání
Applied Vegetation Science, Wiley, 2023, 1402-2001
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10611 Plant sciences, botany
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 2.800 v roce 2022
Kód RIV
RIV/00216224:14310/23:00134505
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000977417700001
Klíčová slova anglicky
abandonment; conservation management; dry grassland; heathland; plant diversity; protected area; species composition; species richness; vascular plants; vegetation change; vegetation plot; vegetation resurvey
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 20. 3. 2024 17:35, Mgr. Marie Šípková, DiS.
Anotace
V originále
Aims Shallow soils on acidic bedrock in dry areas of Central Europe support dry grasslands and heathlands that were formerly used as extensive pastures. These habitats are of high conservation value, but their abandonment in the 20th century triggered slow natural succession that poses a threat to specialized plant species. We asked how this vegetation and its plant diversity have changed over the past three decades and whether protected areas have positively affected habitat quality. Location Southwestern and central Moravia, Czech Republic. Methods In 2018–2019, we resurveyed 94 vegetation plots first sampled in 1986–1991 at 47 acidic dry grassland and heathland sites. We compared the number of all vascular plant species, Red List species and alien species per plot using parametric and non-parametric tests, life-form spectra using the chi-square test, species composition using detrended correspondence analysis, and indicator values using a permutation test. We also compared these changes between sites within and outside protected areas. Results Vegetation changes over the past three decades have been relatively small. However, we detected a decrease in total species richness, the number of Red List species and the number of characteristic species of dry grasslands. Neophytes were infrequent, while archaeophytes increased slightly. The competitive tall grass Arrhenatherum elatius, annual species and young woody plants increased in abundance or newly established at many sites. Indicator values did not change except for a slight increase in nutrient values. These negative trends occurred both within and outside protected areas but were more pronounced outside. Conclusions Formerly grazed acidic dry grasslands and heathlands in Moravia are slowly losing habitat specialists, including threatened plant species, and are increasingly dominated by Arrhenatherum elatius. Conservation management, especially cutting in protected areas, slows down the negative trends of decline in plant diversity and habitat quality but is insufficient to halt these processes completely.
Návaznosti
SS02030018, projekt VaV |
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