About: Semi-dry grasslands along a climatic gradient across Central Europe: Vegetation classification with validation

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Question: What is the variation in species composition of Central European semi-dry grasslands? Can we apply a training-and-test validation approach for identifying phytosociological associations which are floristically well defined in a broad geographic comparison; can we separate them from earlier described associations with only a local validity? Location: A 1200 km long transect running along a gradient of increasing continentality from central Germany via Czech Republic, Slovakia, NE Austria, Hungary to NW Romania. Methods: Relevés with > 25% cover of Brachypodium pinnatum and/or Bromus erectus were geographically selected from a larger database. They were randomly split into two data sets, TRAINING and TEST, each with 422 relevés. Cluster analysis was performed for each data set on scores from significant principal coordinates. Question: What is the variation in species composition of Central European semi-dry grasslands? Can we apply a training-and-test validation approach for identifying phytosociological associations which are floristically well defined in a broad geographic comparison; can we separate them from earlier described associations with only a local validity? Location: A 1200 km long transect running along a gradient of increasing continentality from central Germany via Czech Republic, Slovakia, NE Austria, Hungary to NW Romania. Methods: Relevés with > 25% cover of Brachypodium pinnatum and/or Bromus erectus were geographically selected from a larger database. They were randomly split into two data sets, TRAINING and TEST, each with 422 relevés. Cluster analysis was performed for each data set on scores from significant principal coordinates. (en)
Title	Semi-dry grasslands along a climatic gradient across Central Europe: Vegetation classification with validation Semi-dry grasslands along a climatic gradient across Central Europe: Vegetation classification with validation (en)
skos:prefLabel	Semi-dry grasslands along a climatic gradient across Central Europe: Vegetation classification with validation Semi-dry grasslands along a climatic gradient across Central Europe: Vegetation classification with validation (en)
skos:notation	RIV/00216224:14310/07:00020869!RIV10-MSM-14310___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA206/05/0020), Z(MSM0021622416)
http://linked.open...iv/cisloPeriodika	6
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Chytrý, Milan Hájek, Ondřej
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Masarykova univerzita / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	449380
http://linked.open...ai/riv/idVysledku	RIV/00216224:14310/07:00020869
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Austria; Bromion; Cirsio-Brachypodion; Czech Republic; Germany; Hungary; Phytosociology; Romania; Slovakia; Training and test data sets; Vegetation database (en)
http://linked.open.../riv/klicoveSlovo	Phytosociology Cirsio-Brachypodion Czech Republic Hungary Slovakia Bromion Vegetation database Austria Germany Romania Training and test data sets
http://linked.open...odStatuVydavatele	SE - Švédské království
http://linked.open...ontrolniKodProRIV	[CAE784FA2203]
http://linked.open...i/riv/nazevZdroje	Journal of Vegetation Science
http://linked.open...in/vavai/riv/obor	EF
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	8 (xsd:int)
http://linked.open...vavai/riv/projekt	Vegetation of the Czech Republic: formalized typology, monograph and expert system
http://linked.open...UplatneniVysledku	2007
http://linked.open...v/svazekPeriodika	18
http://linked.open...iv/tvurceVysledku	Chytrý, Milan Hájek, Ondřej Janišová, Monika Willner, Wolfgang Illyés, Eszter Jandt, Ute Škodová, Iveta Botta-Dukát, Zoltán
http://linked.open...n/vavai/riv/zamer	Diversity of Biotic Communities and Populations: Causal Analysis of variation in space and time
issn	1100-9233
number of pages	12 (xsd:int)
http://localhost/t...ganizacniJednotka	14310

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