J 2007

Regional species pools of vascular plants in habitats of the Czech Republic

SÁDLO, Jiří, Milan CHYTRÝ and Petr PYŠEK

Basic information

Original name

Regional species pools of vascular plants in habitats of the Czech Republic

Name in Czech

Druhy cévnatých rostlin v biotopech České republiky

Authors

SÁDLO, Jiří (203 Czech Republic), Milan CHYTRÝ (203 Czech Republic, guarantor) and Petr PYŠEK (203 Czech Republic)

Edition

Preslia, Praha, Česká botanická společnost, 2007, 0032-7786

Other information

Language

English

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:

Impact factor

Impact factor: 2.064

RIV identification code

RIV/00216224:14310/07:00023705

Organization unit

Faculty of Science

UT WoS

000251315100001

Keywords in English

alien; archaeophyte; habitat classification; local and regional processes; native; neophyte
Změněno: 30/1/2008 11:40, prof. RNDr. Milan Chytrý, Ph.D.

Abstract

V originále

Based on a combination of data from the Czech National Phytosociological Database and expert knowledge, a database of vascular plant species pools for 88 habitats, representative of the diversity of Czech vegetation, was compiled. This database contains 1820 native species, 249 archaeophytes and 278 neophytes, each assigned to one or more habitats. Besides the data on species occurrence in different habitats, the database contains information on a species ecological optimum in the habitat or its dominance. The largest pools of native species were found in rather rare habitats of dry and warm herbaceous or woody habitats at low altitudes, some of which contain more than 530 species (maximum of 695 species for thermophilous forest fringes). These were followed by common habitats on mesic soils. The smallest pools of native species were in saline, aquatic and bog habitats (less than 90 species). Species pool sizes of archaeophytes and neophytes for different habitats were positively, yet weakly, correlated with the species pool sizes of native species. Habitats with native species pools less than 350 species contained any number of archaeophytes. Habitats with less than 100 native species contained less than 5, and often no neophytes, but habitats with 100-350 native species contained different numbers of neophytes. Habitats with > 350 native species always contained > 5 archaeophytes and > 5 neophytes, and often many more. Two hundred and thirty two native species, 18 archaeophytes and 30 neophytes were identified as potential dominants in at least one habitat. However, potentially dominant species made up less than 3% of the species pool for 78 out of 88 habitats. Larger percentages (up to 14.6%) of potential dominants were included in habitats with small species pools and species poor stands (e.g., aquatic, saline and mire habitats). The number of habitats in which a species occurred was used as a measure of its ecological range. Most ecological generalists were found among the native species, less among the archaeophytes and least among the neophytes. Out of the 36 species that occur as dominants in three or more habitats, 34 were native (many are grasses), onewas an archaeophyte (Cirsium arvense) and one was a neophyte (Impatiens parviflora).

In Czech

Článek shrnuje základní údaje získané z nově vytvořené databáze, která obsahuje tzv. species pools cévnatých rostlin pro biotopy České republiky, tedy seznamy druhů, které jsou potenciálně schopny růst v daném biotopu. Pro tento účel jsme použili klasifikaci biotopů do 88 kategorií, které většinou odrážejí fytocenologické jednotky na úrovni svazů nebo skupin svazů. Databáze vychází z údajů obsažených v České národní fytocenologické databázi, které byly kriticky revidovány a rozsáhle doplněny s využitím terénních znalostí o výskytu druhů v různých biotopech. Databáze zahrnuje 1820 původních druhů, 249 archeofytů a 278 neofytů, z nichž každý je přiřazen k jednomu nebo více biotopům. Kromě údajů o prostém výskytu druhů v jednotlivých biotopech databáze obsahuje také informace o tom, zda má druh v těchto biotopech svoje ekologické optimum nebo zda se v nich vyskytuje jako dominanta porostů, případně jako častá dominanta porostů.

Links

MSM0021622416, plan (intention)
Name: Diverzita biotických společenstev a populací: kauzální analýza variability v prostoru a čase
Investor: Ministry of Education, Youth and Sports of the CR, Diversity of Biotic Communities and Populations: Causal Analysis of variation in space and time