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@article{557202,
author = {Kuželová, Ilona and Chytrý, Milan},
article_location = {Dordrecht},
article_number = {2},
keywords = {Ecological scale; numerical methods; phytosociology; plant communities; sociological species groups; vegetation survey},
language = {eng},
issn = {1385-0237},
journal = {Plant Ecology},
title = {Interspecific associations in phytosociological data sets: how do they change between local and regional scale?},
url = {http://dx.doi.org/10.1023/B:VEGE.0000029330.38055.8e},
volume = {173},
year = {2004}
}
TY - JOUR
ID - 557202
AU - Kuželová, Ilona - Chytrý, Milan
PY - 2004
TI - Interspecific associations in phytosociological data sets: how do they change between local and regional scale?
JF - Plant Ecology
VL - 173
IS - 2
SP - 247-257
EP - 247-257
SN - 13850237
KW - Ecological scale
KW - numerical methods
KW - phytosociology
KW - plant communities
KW - sociological species groups
KW - vegetation survey
UR - http://dx.doi.org/10.1023/B:VEGE.0000029330.38055.8e
N2 - Interspecific associations detected in phytosociological data sets sampled in local areas can reflect locally specific combinations of environmental factors and may thus differ from the interspecific associations existing on a regional scale. As a result, vegetation units derived from numerical classifications of local data sets can accurately reflect local environmental gradients, but their boundaries or spectra of diagnostic species must be frequently adjusted when transferred to the regional scale. Local vegetation classifications can be useful for some purposes, but regional classifications are superior, as they facilitate communication among the researchers from different areas. We demonstrated changes in interspecific associations between regional and local scale, using a data set of 14 589 relevés of herbaceous vegetation of the Czech Republic, and 16 local subsets of this national data set. We focused on sociological species groups, derived statistically in the national data set. Local data sets differed from the national data set to different extent. The results suggest that interspecific associations existing on regional scale are best reproduced in those local areas which have a high habitat heterogeneity or which have a central position along the major gradients existing on regional scale.
ER -
KUŽELOVÁ, Ilona and Milan CHYTRÝ. Interspecific associations in phytosociological data sets: how do they change between local and regional scale? \textit{Plant Ecology}. Dordrecht, 2004, vol.~173, No~2, p.~247-257. ISSN~1385-0237.
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