J 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
Změněno: 5. 9. 2005 09:09, prof. RNDr. Milan Chytrý, Ph.D.

Anotace

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
Název: Časoprostorová dynamika biodiverzity v ekosystémech střední Evropy.
Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, Časoprostorová dynamika biodiverzity v ekosystémech střední Evropy