The Balkan wet grassland vegetation: a prerequisite to better understanding of European habitat diversity

0313981 - BÚ 2009 RIV NL eng J - Článek v odborném periodiku
Hájek, Michal - Hájková, Petra - Sopotlieva, D. - Apostolova, I. - Velev, N.
The Balkan wet grassland vegetation: a prerequisite to better understanding of European habitat diversity.
[Vegetace mokrých luk Balkánu: prerekvizita dobrého poznání diverzity evropské vegetace.]
Plant Ecology. Roč. 195, č. 2 (2008), s. 197-213. ISSN 1385-0237. E-ISSN 1573-5052
Grant ostatní: GA AV ČR(CZ) KJB6163302
Výzkumný záměr: CEZ:AV0Z60050516
Klíčová slova: climate * vegetation * grasslands
Kód oboru RIV: EF - Botanika
Impakt faktor: 1.730, rok: 2008

We gathered original data from Bulgaria and analysed them together with the data from Central Europe.Four distinct vegetation types were differentiated. Even if they correspond with traditional alliances, which are primarily drawn as geographically defined units in Western and Central Europe,they all occur in Bulgaria.Altitude is a dominant gradient controlling variation in Balkan wet grasslands.The second DCA axis was interpreted as the gradient of nutrient availability. Species richness shows skewed-unimodal trends along both major gradients.Our results suggest that(1) climate is an important factor for the diversity of wet grasslands;(2) Balkan vegetation of middle altitudes matches with that of Central Europe, whereas that of the lowest altitudes corresponds rather to the sub-Mediterranean region and high mountains are specific;(3) upward shift of Central-European vegetation types in southern Europe, so often described in forest vegetation is also evident for grassland vegetation.

Získali jsme originální vegetační data z mokrých luk Bulharska a analyzovali je společně s daty ze střední Evropy. Všechny čtyři hlavní evropské svazy mokrých luk se vyskytovali v Bulharku a byly diferencovány podél gradientu nadmořské výšky. Bylo možné rozpoznat některé obecné zákonitosti ovlivňující velkou diverzitu vegetace na Balkáně.
Trvalý link: http://hdl.handle.net/11104/0164631