Context-dependence of diagnostic species: A case study of the
Central European spruce forests

J 2002

Context-dependence of diagnostic species: A case study of the Central European spruce forests

CHYTRÝ, Milan, Andreas EXNER, Richard HRIVNÁK, Karol UJHÁZY, Milan VALACHOVIČ et. al.

Basic information

Original name

Context-dependence of diagnostic species: A case study of the Central European spruce forests

Authors

CHYTRÝ, Milan (203 Czech Republic, guarantor), Andreas EXNER (40 Austria), Richard HRIVNÁK (703 Slovakia), Karol UJHÁZY (703 Slovakia), Milan VALACHOVIČ (703 Slovakia) and Wolfgang WILLNER (40 Austria)

Edition

Folia Geobotanica, Pruhonice, Institute of Botany, 2002, 1211-9520

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:

URL

RIV identification code

RIV/00216224:14310/02:00007498

Organization unit

Faculty of Science

UT WoS

000182228800003

Keywords in English

Bohemian Massif; Eastern Alps; Fidelity; Phytosociological database; Picea abies; Vegetation survey; Western Carpathians

Abstract

V originále

Diagnostic species of spruce forests were determined from a data set of 20,164 phytosociological relevés of forests from the Eastern Alps, Western Carpathians, and the Bohemian Massif, which included 3,569 relevés of spruce forests. Phi coefficient of association was used to measure species fidelity, and species with the highest fidelities were considered as diagnostic. Diagnostic species were determined in three ways, including (1) comparison of spruce forests among the three mountain ranges, (2) comparison between spruce forests and the other forests, performed separately in each of the mountain ranges, (3) simultaneous comparison of spruce forests of each of the mountain ranges with the spruce forests of the other two ranges and with the other forests of all ranges. The first case simulated phytosociological studies which focus on a limited range of habitats but have a wider geographical extent. The second case simulated studies done locally but in a broader range of different habitats. The third case is superior to the former two, but it can be rarely realized due to the lack of data. The sets of diagnostic species of spruce forests yielded in the first and second case were sharply different; the set resulting from the third case was a compromise between the former two. In the first case, spruce forests of the Eastern Alps had a number of diagnostic species, while the spruce forests of the other two mountain ranges were poorly characterized in these terms. In the second case, on the contrary, the quality of diagnostic species decreased from the Bohemian Massif to the Eastern Alps. This exercise points out that many lists of diagnostic species published in phytosociological literature have an equivocal meaning: unless we know what community types were compared prior to the determination of the diagnostic species, we can hardly use these lists for identification of community types.

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

Citovat

CHYTRÝ, Milan, Andreas EXNER, Richard HRIVNÁK, Karol UJHÁZY, Milan VALACHOVIČ and Wolfgang WILLNER. Context-dependence of diagnostic species: A case study of the Central European spruce forests. Folia Geobotanica. Pruhonice: Institute of Botany, 2002, vol. 37, No 4, p. 403-417. ISSN 1211-9520.

@article{484217,
   author = {Chytrý, Milan and Exner, Andreas and Hrivnák, Richard and Ujházy, Karol and Valachovič, Milan and Willner, Wolfgang},
   article_location = {Pruhonice},
   article_number = {4},
   keywords = {Bohemian Massif; Eastern Alps; Fidelity; Phytosociological database; Picea abies; Vegetation survey; Western Carpathians},
   language = {eng},
   issn = {1211-9520},
   journal = {Folia Geobotanica},
   title = {Context-dependence of diagnostic species: A case study of the Central European spruce forests},
   url = {http://www.sci.muni.cz/botany/chytry/FG2002b.pdf},
   volume = {37},
   year = {2002}
}

TY  - JOUR
ID  - 484217
AU  - Chytrý, Milan - Exner, Andreas - Hrivnák, Richard - Ujházy, Karol - Valachovič, Milan - Willner, Wolfgang
PY  - 2002
TI  - Context-dependence of diagnostic species: A case study of the Central European spruce forests
JF  - Folia Geobotanica
VL  - 37
IS  - 4
SP  - 403
EP  - 403
PB  - Institute of Botany
SN  - 12119520
KW  - Bohemian Massif
KW  - Eastern Alps
KW  - Fidelity
KW  - Phytosociological database
KW  - Picea abies
KW  - Vegetation survey
KW  - Western Carpathians
UR  - http://www.sci.muni.cz/botany/chytry/FG2002b.pdf
N2  - Diagnostic species of spruce forests were determined from a data set of 20,164 phytosociological relevés of forests from the Eastern Alps, Western Carpathians, and the Bohemian Massif, which included 3,569 relevés of spruce forests. Phi coefficient of association was used to measure species fidelity, and species with the highest fidelities were considered as diagnostic. Diagnostic species were determined in three ways, including (1) comparison of spruce forests among the three mountain ranges, (2) comparison between spruce forests and the other forests, performed separately in each of the mountain ranges, (3) simultaneous comparison of spruce forests of each of the mountain ranges with the spruce forests of the other two ranges and with the other forests of all ranges. The first case simulated phytosociological studies which focus on a limited range of habitats but have a wider geographical extent. The second case simulated studies done locally but in a broader range of different habitats. The third case is superior to the former two, but it can be rarely realized due to the lack of data. The sets of diagnostic species of spruce forests yielded in the first and second case were sharply different; the set resulting from the third case was a compromise between the former two. In the first case, spruce forests of the Eastern Alps had a number of diagnostic species, while the spruce forests of the other two mountain ranges were poorly characterized in these terms. In the second case, on the contrary, the quality of diagnostic species decreased from the Bohemian Massif to the Eastern Alps. This exercise points out that many lists of diagnostic species published in phytosociological literature have an equivocal meaning: unless we know what community types were compared prior to the determination of the diagnostic species, we can hardly use these lists for identification of community types.
ER  -

CHYTRÝ, Milan, Andreas EXNER, Richard HRIVNÁK, Karol UJHÁZY, Milan VALACHOVIČ and Wolfgang WILLNER. Context-dependence of diagnostic species: A case study of the Central European spruce forests. \textit{Folia Geobotanica}. Pruhonice: Institute of Botany, 2002, vol.~37, No~4, p.~403-417. ISSN~1211-9520.

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