Detailed Information on Publication Record
2014
Environmental drivers of species composition and richness in dry grasslands of northern and central Bohemia, Czech Republic
MERUNKOVÁ, Kristina, Zdenka PREISLEROVÁ and Milan CHYTRÝBasic information
Original name
Environmental drivers of species composition and richness in dry grasslands of northern and central Bohemia, Czech Republic
Authors
MERUNKOVÁ, Kristina (203 Czech Republic, belonging to the institution), Zdenka PREISLEROVÁ (203 Czech Republic, belonging to the institution) and Milan CHYTRÝ (203 Czech Republic, guarantor, belonging to the institution)
Edition
Tuexenia, Göttingen, 2014, 0722-494X
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10600 1.6 Biological sciences
Country of publisher
Germany
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 1.562
RIV identification code
RIV/00216224:14310/14:00074252
Organization unit
Faculty of Science
UT WoS
000341545700022
Keywords in English
biomass; diversity; nutrients; plant community; productivity; soil depth; soil pH; steppe
Tags
International impact, Reviewed
Změněno: 13/3/2018 10:44, Mgr. Lucie Jarošová, DiS.
Abstract
V originále
Central European dry grasslands are remarkably diverse plant communities that occur at the western edge of the Eurasian forest-steppe zone and harbour many species of continental distribution. Although their plant community types have been described in detail, the diversity patterns and their environmental determinants are still poorly known for these grasslands. Here, we study environmental drivers of species composition and richness in dry grasslands of northern Bohemia (Ceske stredohori Mts) and central Bohemia (Krivoklat region), both in the Czech Republic. In vegetation plots of 100 m(2) we recorded all vascular plant species, measured soil chemistry variables, above-ground biomass production and nutrient concentrations in biomass. Species richness in these plots ranged from 13 to 55. The relationships between species composition and the environment were explored using detrended correspondence analysis and canonical correspondence analysis, while the relationships between species richness and the environment were assessed using univariate and multiple regression models. In both regions, species composition and richness strongly responded to the soil pH (ranging from 4.0 to 7.8), which was positively correlated with calcium and magnesium concentrations and negatively with annual precipitation. The response of species richness to soil pH was unimodal with a peak at pH of about 6.5 in the Ceske stredohori Mts, and positive in the Krivoklat region. Plots on soils with a pH higher than 5 consistently contained more than 35 species. In the Ceske stredohori Mts, species richness was positively related to the aboveground biomass production, whereas in the Krivoklat region, this relationship was only significant for graminoid species. In both areas, plots with soils deeper than 20 cm and with aboveground biomass dry weight above 200 g/m(2) harboured more than 40 species per 100 m(2). Moreover, in the Ceske stredohori Mts, nitrogen concentrations in the biomass had considerable effects on both species composition and richness: species numbers were lower at sites with higher nitrogen concentration. This indicates a threat to diversity of these dry grasslands under currently high atmospheric nitrogen deposition coupled with the absence of management at most of the studied sites.
Links
| GB14-36079G, research and development project |
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