J 2003

Czech National Phytosociological Database: basic statistics of the available vegetation-plot data

CHYTRÝ, Milan and Marie RAFAJOVÁ

Basic information

Original name

Czech National Phytosociological Database: basic statistics of the available vegetation-plot data

Authors

CHYTRÝ, Milan (203 Czech Republic, guarantor) and Marie RAFAJOVÁ (203 Czech Republic)

Edition

Preslia, Praha, Česká botanická společnost, 2003, 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:

RIV identification code

RIV/00216224:14310/03:00007998

Organization unit

Faculty of Science

UT WoS

000183018000001

Keywords in English

bioinformatics; Czech Republic; plant community; phytosociology; relevé; vegetation sampling; survey
Změněno: 19/8/2003 09:47, prof. RNDr. Milan Chytrý, Ph.D.

Abstract

V originále

Electronic vegetation relevés available in the Czech National Phytosociological Database are reviewed. The database was established in 1996, with a central database managed in the Department of Botany, Masaryk University in Brno (www.sci.muni.cz/botany/database.htm). On 15 November 2002 the central database contained 54,310 relevés from the territory of the Czech Republic, sampled by 332 authors between 1922-2002. Ca. 54 % of the relevés have been taken from published papers or monographs, 21 % from theses and the rest from various unpublished reports and field-books. These relevés include 1,259,008 floristic records of individual plant species. Territorial coverage of the country with relevé-plot data is irregular due to more intensive sampling in the areas with attractive natural or semi-natural vegetation; on the other hand some gaps still exist in less attractive or poorly accessible areas. Most relevés are of broad-leaved deciduous forests (Querco-Fagetea), meadows (Molinio-Arrhenatheretea), dry grasslands (Festuco-Brometea), and marsh grasslands (Phragmito-Magnocaricetea). Data quality issues are discussed, such as researcher bias in field recording, preferential selection of sampling sites, spatial autocorrelation, and missing values of some data elements.

Links

GA206/99/1523, research and development project
Name: Parametrizace fytocenologického systému pomocí velkých souborů dat
Investor: Czech Science Foundation, Parameterization of the phytosociological classification using large datasets
MSM 143100010, plan (intention)
Name: Časoprostorová dynamika biodiverzity v ekosystémech střední Evropy.
Investor: Ministry of Education, Youth and Sports of the CR, Spatiotemporal biodiversity dynamics in ecosystems of Central Europe