CHYTRÝ, Milan, Lubomír TICHÝ a Jan ROLEČEK. Local and regional patterns of species richness in Central European vegetation types along the pH/calcium gradient. Folia Geobotanica. Pruhonice: Institute of Botany, 2003, roč. 38, č. 4, s. 429-442. ISSN 1211-9520.
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Základní údaje
Originální název Local and regional patterns of species richness in Central European vegetation types along the pH/calcium gradient
Autoři CHYTRÝ, Milan (203 Česká republika, garant), Lubomír TICHÝ (203 Česká republika) a Jan ROLEČEK (203 Česká republika).
Vydání Folia Geobotanica, Pruhonice, Institute of Botany, 2003, 1211-9520.
Další údaje
Originální 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
WWW URL
Kód RIV RIV/00216224:14310/03:00009324
Organizační jednotka Přírodovědecká fakulta
UT WoS 000187159100008
Klíčová slova anglicky Calcareous; Calcicole; Calcifuge; Ellenberg indicator values; Historical and evolutionary processes; Soil acidity; Species pool; Vascular plants
Štítky Calcareous, calcicole, calcifuge, Ellenberg indicator values, Historical and evolutionary processes, soil acidity, Species pool, vascular plants
Změnil Změnil: Mgr. Jan Roleček, Ph.D., učo 42706. Změněno: 12. 3. 2010 20:50.
Anotace
We investigated the relationship between soil pH/calcium content and species richness of vascular plants in seven broadly defined Central European vegetation types, using Ellenberg indicator values for soil reaction and a phytosociological data set of 11 041 vegetation sample plots from the Czech Republic. The vegetation types included (A) broad-leaved deciduous forests, (B) meadows, (C) dry grasslands, (D) reed-bed and tall-sedge vegetation, (E) fens and transitional mires, (F) perennial synanthropic vegetation and (G) annual synanthropic vegetation. Relationships between local species richness (alpha diversity) and pH/calcium content were positive for vegetation types A and C, negative for D and G, unimodal for E, and insignificant for B and F. Ellenberg soil reaction values explained 37 % of variation in local species richness for vegetation type E, 24 % for A, 13 % for D, but only less than 4 % for the others. Species pool size, i.e. the number of species that can potentially occur in a given habitat, was calculated for each plot using Beals index of sociological favourability applied to a large phytosociological database. For most vegetation types, the relationships between species pool size and pH/calcium content were similar to the relationships between local species richness and pH/calcium content, with the exception of meadows (weak unimodal) and perennial synanthropic vegetation (weak negative). These patterns suggest that for those types of Central European vegetation which developed independently of human influence in the Pleistocene or early Holocene (dry grasslands, deciduous forests), there are larger pools of calcicole than calcifuge species. This pattern is also found at the level of local species richness, where it is, however, less clearly pronounced, possibly due to the predominance of a few widespread and generalist calcifuges in acidic habitats. The unimodal pattern found in mires may result from similar underlying mechanisms, but in high pH environments mineral-rich spring waters probably decrease species richness by toxic effects on plant growth. By contrast, vegetation types developed under direct human influence (meadows, synathropic vegetation) show weak negative or no relationships of local species richness or species pool to pH/calcium gradient. These results support the hypothesis of Pärtel (2002, Ecology 83: 2361-2366) and Ewald (2003, Folia Geobot. 38: 357-366), that the modern calcicole/calcifuge disparity in the species pool of Central European flora has resulted from historical and evolutionary processes, which took place on high pH soils. In the Pleistocene, calcareous soils dominated both the dry continental landscapes of Central Europe and glacial refugia of temperate flora, which were mostly situated in southern European mountain ranges with abundant limestone and dolomite. The negative pattern of species richness along the pH/calcium gradient found in reed-bed and tall-sedge vegetation, however, is not consistent with this historical explanation.
Anotace česky
Analýza vztahu druhové bohatosti a pH.
Návaznosti
MSM 143100010, záměrNázev: Časoprostorová dynamika biodiverzity v ekosystémech střední Evropy.
Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, Výzkumné záměry
VytisknoutZobrazeno: 28. 2. 2021 23:27