Nelesní vegetace České nížiny: reliktní původ a kulturní transformace

POKORNÝ, Petr, Jiří SÁDLO, Milan CHYTRÝ, Lucie JUŘIČKOVÁ, Jan NOVÁK and Vojen LOŽEK. Nelesní vegetace České nížiny: reliktní původ a kulturní transformace (Non-forest vegetation of Bohemian Basin: relict origin and anthropogenic transformation). Zprávy České botanické společnosti. Praha: Česká botanická společnost, 2015, vol. 50, No 2, p. 181-200. ISSN 1211-5258.

Basic information

Original name

Nelesní vegetace České nížiny: reliktní původ a kulturní transformace

Name (in English)

Non-forest vegetation of Bohemian Basin: relict origin and anthropogenic transformation

Authors

POKORNÝ, Petr (203 Czech Republic), Jiří SÁDLO (203 Czech Republic), Milan CHYTRÝ (203 Czech Republic, guarantor, belonging to the institution), Lucie JUŘIČKOVÁ (203 Czech Republic), Jan NOVÁK (203 Czech Republic) and Vojen LOŽEK (203 Czech Republic)

Edition

Zprávy České botanické společnosti, Praha, Česká botanická společnost, 2015, 1211-5258

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Other information

Language

Czech

Type of outcome

Článek v odborném periodiku

Field of Study

10600 1.6 Biological sciences

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

RIV identification code

RIV/00216224:14310/15:00085647

Organization unit

Faculty of Science

Keywords in English

cultural steppe; habitat dynamics; Holocene refugia; molluscs; pollen analysis; relicts; steppe

Tags

AKR, rivok

Tags

Reviewed

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Abstract

V originále

Na základě fosilních pylových a malakologických dat z dolního Poohří je analyzována otázka možného souvislého přetrvání biotopu suchých trávníků v nížinách České kotliny.

In English

A fundamental question for the biogeographical interpretation of central European lowlands is whether the Early Holocene steppe and its biota survived the period of maximum afforestation in the mid-Holocene. So far, our knowledge was limited by the lack of fossil pollen records from dry lowland areas. The scarce analyses of fossil pollen and the more common analyses of molluscs from sedimentary series led to the contrasting interpretations of closed-forest landscape (pollen data) and partly open landscape (mollusc data) in the mid-Holocene. We performed parallel analyses of pollen and molluscs from sedimentary sequences in the dry lowland area along the lower Ohře river in northern Bohemia (Zahájí and Suchý potok). Both analyses provide strong support for the hypothesis of continuous local occurrence of steppe grasslands throughout the Holocene. At the beginning of the Neolithic period this area was probably covered by forest- steppe with pine and birch woodlands supporting many light-demanding species which later found their habitat in secondary grasslands. These secondary grasslands have been developed from ca. 5000 yrs BP due to anthropogenic deforestation and grazing by domestic livestock. For the first time both pollen and mollusc data provide consistent evidence that these grasslands and their biota, although supported and maintained by humans, are a direct continuation of Late Pleistocene and Early Holocene natural steppes.