2004
Trends in species diversity and composition of urban vegetation over three decades
PYŠEK, Petr, Zdena CHOCHOLOUŠKOVÁ, Antonín PYŠEK, Vojtěch JAROŠÍK, Milan CHYTRÝ et. al.Základní údaje
Originální název
Trends in species diversity and composition of urban vegetation over three decades
Název česky
Trendy diverzity a složení městské vegetace za tři desetiletí
Autoři
PYŠEK, Petr (203 Česká republika), Zdena CHOCHOLOUŠKOVÁ (203 Česká republika), Antonín PYŠEK (203 Česká republika), Vojtěch JAROŠÍK (203 Česká republika), Milan CHYTRÝ (203 Česká republika, garant) a Lubomír TICHÝ (203 Česká republika)
Vydání
Journal of Vegetation Science, Uppsala, Opulus Press, 2004, 110-9233
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
Kód RIV
RIV/00216224:14310/04:00010435
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000225785600008
Klíčová slova anglicky
Biotic homogenization; Indicator value; Phytosociology; Plant invasion; Ruderal vegetation; Synanthropic; Temporal trend
Štítky
Změněno: 5. 9. 2005 09:09, prof. RNDr. Milan Chytrý, Ph.D.
V originále
Question: What was the change in diversity of urban synantropic vegetation in a medium-sized Central European city during the period of increasing urbanization (1960s-1990s)? Location: The city of Plzeň, an industrial centre of the western part of the Czech Republic. Methods: Sampling of various types of synanthropic vegetation, conducted in the 1960s, was repeated by using the same methods in the 1990s. This yielded 959 relevés, of which 623 were made in the 1960s and 336 in the 1990s. The relevés were assigned to the following phytosociological classes: Chenopodietea, Artemisietea vulgaris, Galio-Urticetea, Agropyretea repentis and Plantaginetea majoris. Total number of vascular plant species, evenness index J, number of alien species (classified into archaeophytes and neophytes), and mean Ellenberg indicator values for light, temperature, continentality, moisture, soil reaction, and nutrients were obtained for each relevé. Results: From 1960s to 1990s, there was a significant decrease of species richness and diversity in synanthropic vegetation. The proportion of archaeophytes decreased in most vegetation types, indicating the contribution of this group of species, often confined to specific rural-like habitats, to the observed impoverishment of ruderal vegetation. The proportion of neophytes did not change between the two periods. Comparison between 1960s and 1990s indicated a decrease in light, temperature, moisture, soil reaction and nutrient indicator values in some vegetation types. In both periods, Artemisieta, Galio-Urticetea and Chenopodietea formed a distinct group harbouring more species than Agropyretea and Plantaginetea. Neophytes, i.e. recently introduced species, were most represented in the early successional annual vegetation of Chenopodietea, rather than in perennial vegetation of the other classes. Conclusions: Synanthropic vegetation of Plzeň exhibited a general trend of decrease in species diversity.
Česky
Charakteristika změn synantropní vegetace města Plzně za tři desetiletí.
Návaznosti
MSM 143100010, záměr |
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