2014
Testing floristic and environmental differentiation of rich fens on the Bohemian Massif
PETERKA, Tomáš; Zuzana PLESKOVÁ; Martin JIROUŠEK a Michal HÁJEKZákladní údaje
Originální název
Testing floristic and environmental differentiation of rich fens on the Bohemian Massif
Název česky
Testování floristické a ekologické diferenciace bohatých slatinišť v Českém masivu
Autoři
Vydání
Preslia, Česká botanická společnost, 2014, 0032-7786
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10600 1.6 Biological sciences
Stát vydavatele
Česká republika
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 4.104
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14310/14:00074129
Organizační jednotka
Přírodovědecká fakulta
UT WoS
Klíčová slova česky
Českomoravská vrchovina; mechorosty; klasifikace; gradienty; ISOPAM; rašeliniště; Třeboňská pánev; vegetace
Klíčová slova anglicky
Bohemian-Moravian Highlands; bryophytes; classification; gradients; ISOPAM; mire; Třeboň basin; vegetation
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 16. 2. 2018 14:51, prof. Mgr. Michal Hájek, Ph.D.
Anotace
V originále
The south-eastern part of the Bohemian Massif is an important hotspot of fen biodiversity. Especially rich fens with calcium-tolerant peat mosses (the Sphagno warnstorfii-Tomentypnion alliance) currently harbour highly endangered organisms. In this study we gathered phytosociological and environmental data from 57 fens. Particular types of vegetation were nearly completely differentiated in the PCA of environmental data and all their pairs differed significantly with respect to pH, which together with calcium was correlated with the major vegetation gradient. The secondary gradient coincided with the concentration of nitrate and potassium, but was not apparent in the bryophyte subset. When only data for vascular plants were analyzed, the major gradient reflected increasing number of species from poor to extremely-rich fens, including ubiquitous grassland species, and only partially coincided with pH and calcium. In addition, particular vegetation types did not differ in the N:P ratio of bryophyte biomass. Species composition of extremely rich fens thus seemed to be determined predominantly by a high pH/calcium level and waterlogging, low iron concentration and absence of sphagna that would hamper regeneration of some competitively weak vascular plants. We demonstrated that the delimitation of the major vegetation types (alliances) along the poor-rich gradient makes great floristic and ecological sense also in the Hercynian Mountains and that pH and calcium rather than nutrient availability differentiate causally major vegetation types by determining structure of the moss layer.
Návaznosti
| GAP505/10/0638, projekt VaV |
| ||
| MUNI/A/0788/2013, interní kód MU |
|