2004
Diversity of hay meadows in the Czech Republic: major types and environmental gradients
HAVLOVÁ, Marcela, Milan CHYTRÝ a Lubomír TICHÝZákladní údaje
Originální název
Diversity of hay meadows in the Czech Republic: major types and environmental gradients
Název česky
Diverzita luk České republiky: hlavní typy a gradienty prostředí
Autoři
HAVLOVÁ, Marcela (203 Česká republika), Milan CHYTRÝ (203 Česká republika, garant) a Lubomír TICHÝ (203 Česká republika)
Vydání
Phytocoenologia, Berlin/Stuttgart, Gebrüder Borntraeger, 2004, 0340-269X
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10600 1.6 Biological sciences
Stát vydavatele
Německo
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 0.389
Kód RIV
RIV/00216224:14310/04:00010817
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000225678900002
Klíčová slova anglicky
beta-diversity; classification; Ellenberg indicator values; grassland vegetation; ordination; phytosociology
Štítky
Změněno: 30. 12. 2008 18:48, prof. RNDr. Milan Chytrý, Ph.D.
V originále
A geographically stratified data set of 3102 relevés of meadows and mesic pastures of the Czech Republic was analysed by detrended correspondence analysis and cluster analysis. Major gradients and clusters were interpreted using Ellenberg indicator values. The major gradient in species composition was associated with soil moisture and the second most important gradient with available nutrients. Clusters proposed by numerical classification reproduced some of the traditional phytosociological alliances, namely Arrhenatherion, Molinion and Polygono-Trisetion, while some other alliances were less clearly differentiated (e.g. Alopecurion, Cnidion and Cynosurion). Wet meadows of the Calthion alliance were divided among several clusters, which corresponded to the main associations recognized in traditional phytosociological literature. This patterns suggests that wet meadows have a higher beta-diversity than mesic meadows. We tested this hypothesis by calculating mean pair-wise Sörensen dissimilarity for bootstrap subsamples of meadow relevés for partitions of the moisture gradient, and confirmed that beta-diversity of meadows increases with increasing soil moisture. In traditional phytosociological literature, this fact is reflected by higher numbers of associations distinguished within wet meadows than in mesic meadows.
Česky
Analýza diverzity vegetace luk České republiky.
Návaznosti
GA206/02/0957, projekt VaV |
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MSM 143100010, záměr |
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