Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Classification of European and Mediterranean coastal dune vegetation
Marcenò, Corrado ; Guarino, Riccardo ; Loidi, Javier ; Herrera, Mercedes ; Isermann, Maike ; Knollová, Ilona ; Tichý, Lubomír ; Tzonev, Rossen T. ; Acosta, Alicia Teresa Rosario ; Fitzpatrick, Úna ; Iakushenko, Dmytro ; Janssen, John A.M. ; Jiménez-Alfaro, Borja ; Kacki, Zygmunt ; Keizer-Sedláková, Iva ; Kolomiychuk, Vitaliy ; Rodwell, John S. ; Schaminée, Joop H.J. ; Šilc, Urban ; Chytrý, Milan - \ 2018
Applied Vegetation Science 21 (2018)3. - ISSN 1402-2001 - p. 533 - 559.
Ammophiletea - Biogeography - Expert system - Honckenyo-Elymetea - Koelerio-Corynephoretea canescentis - Phytosociology - Sand dune - Vegetation classification

Aims: Although many phytosociological studies have provided detailed local and regional descriptions of coastal dune vegetation, a unified classification of this vegetation in Europe and the Mediterranean Basin has been missing. Our aim is to produce a formalized classification of this vegetation and to identify the main factors driving its plant species composition at a continental scale. Location: Atlantic and Baltic coasts of Europe, Mediterranean Basin and the Black Sea region. Methods: We compiled a database of 30,759 plots of coastal vegetation, which were resampled to reduce unbalanced sampling effort, obtaining a data set of 11,769 plots. We classified these plots with TWINSPAN, interpreted the resulting clusters and used them for developing formal definitions of phytosociological alliances of coastal dune vegetation, which were included in an expert system for automatic vegetation classification. We related the alliances to climatic factors and described their biogeographic features and their position in the coastal vegetation zonation. We examined and visualized the floristic relationships among these alliances by means of DCA ordination. Results: We defined 18 alliances of coastal dune vegetation, including the newly described Centaureo cuneifoliae-Verbascion pinnatifidi from the Aegean region. The main factors underlying the differentiation of these alliances were biogeographic and macroclimatic contrasts between the Atlantic-Baltic, Mediterranean and Black Sea regions, along with ecological differences between shifting and stable dunes. The main difference in species composition was between the Atlantic-Baltic and Mediterranean-Black Sea regions. Within the former region, the main difference was driven by the different ecological conditions between shifting and stable dunes, whereas within the latter, the main difference was biogeographic between the Mediterranean and the Black Sea. Conclusions: The first formal classification of the European coastal dune vegetation was established, accompanied by an expert system containing the formal definitions of alliances, which can be applied to new data sets. The new classification system critically revised the previous concepts and integrated them into a consistent framework, which reflects the main gradients in species composition driven by biogeographic influences, macroclimate and the position of the sites in the coast-inland zonation of the dune systems. A revision of the class concept used in EuroVegChecklist is also proposed.

The romanian grassland database (RGD) : Historical background, current status and future perspectives
Vassilev, Kiril ; Ruprecht, Eszter ; Alexiu, Valeriu ; Becker, Thomas ; Beldean, Monica ; Bita-Nicolae, Claudia ; Csergo, Anna Mária ; Dzhovanova, Iliana ; Filipova, Eva ; Frink, József Pál ; Gafta, Dan ; Georgieva, Mariya ; Germany, Markus S. ; Goia, Irina ; Gumus, Media ; Hennekens, Stephan M. ; Janišová, Monika ; Knollová, Ilona ; Koleva, Viktoriya ; Kostadinova, Sofia ; Kuzmanovic, Nevena ; Loos, Jacqueline ; Mardari, Constantin ; Michl, Thomas ; Neblea, Monica Angela ; Nicoara, Roxana Ion ; Novák, Pavel ; Öllerer, Kinga ; Onete, Marilena ; Palpurina, Salza ; Paulini, Inge ; Pedashenko, Hristo ; Puşcaş, Mihai ; Roman, Anamaria ; Šibík, Jozef ; Sîrbu, Culita ; Stancu, Daniela Ileana ; Sutcliffe, Laura M.E. ; Szabó, Anna ; Tomescu, Cezar Valentin ; Totev, Evelin ; Tsvetanov, Borislav ; Turtureanu, Pavel Dan ; Vassileva, Plamena ; Velev, Nikolay ; Dengler, Jürgen - \ 2018
Phytocoenologia 48 (2018)1. - ISSN 0340-269X - p. 91 - 100.
Ecoinformatics - European vegetation archive (EVA) - Grassland vegetation - Phytosociology - Relevé - Romanian grassland database (RGD) - Splot - Turboveg - Vegetation classification - Vegetation-plot data
This report describes the Romanian Grassland Database (RGD), registered under EU-RO-008 in the Global Index of Vegetation-Plot Databases (GIVD). This collaborative initiative aims to collect all available vegetationplot data (relevés) of grasslands and other open habitats from the territory of Romania to provide them for science, nationally and internationally, e.g. via the European Vegetation Archive (EVA) and the global database "sPlot". The database mainly contains vegetation-plots from not only wet, mesic, dry, saline, alpine and rocky grasslands, but also other vegetation types like heathlands, mires, ruderal, segetal, aquatic and cryptogamdominated vegetation. Currently, 21,685 relevés have mainly been digitised from literature sources (90%), while the remainder comes from individual unpublished sources (10%). We report on the background and history of the RGD, explain its "Data Property and Governance Rules" under which data are contributed and retrieved, and outline how the RGD can contribute to research in the fields of vegetation ecology, macroecology and conservation.
Alien plant invasions in European woodlands
Wagner, Viktoria ; Chytrý, Milan ; Jiménez-Alfaro, Borja ; Pergl, Jan ; Hennekens, Stephan ; Biurrun, Idoia ; Knollová, Ilona ; Berg, Christian ; Vassilev, Kiril ; Rodwell, John S. ; Škvorc, Željko ; Jandt, Ute ; Ewald, Jörg ; Jansen, Florian ; Tsiripidis, Ioannis ; Botta-Dukát, Zoltán ; Casella, Laura ; Attorre, Fabio ; Rašomavičius, Valerijus ; Ćušterevska, Renata ; Schaminée, Joop H.J. ; Brunet, Jörg ; Lenoir, Jonathan ; Svenning, Jens Christian ; Kącki, Zygmunt ; Petrášová-Šibíková, Mária ; Šilc, Urban ; García-Mijangos, Itziar ; Campos, Juan Antonio ; Fernández-González, Federico ; Wohlgemuth, Thomas ; Onyshchenko, Viktor ; Pyšek, Petr - \ 2017
Diversity and Distributions 23 (2017)9. - ISSN 1366-9516 - p. 969 - 981.
EUNIS - exotic - forest - invasive plants - life-form - neophyte - non-native - origin - tree
Aim: Woodlands make up a third of European territory and carry out important ecosystem functions, yet a comprehensive overview of their invasion by alien plants has never been undertaken across this continent. Location: Europe. Methods: We extracted data from 251,740 vegetation plots stored in the recently compiled European Vegetation Archive. After filtering (resulting in 83,396 plots; 39 regions; 1970–2015 time period), we analysed the species pool and frequency of alien vascular plants with respect to geographic origin and life-forms, and the levels of invasion across the European Nature Information System (EUNIS) woodland habitats. Results: We found a total of 386 alien plant species (comprising 7% of all recorded vascular plants). Aliens originating from outside of and from within Europe were almost equally represented in the species pool (192 vs. 181 species) but relative frequency was skewed towards the former group (77% vs. 22%) due, to some extent, to the frequent occurrence of Impatiens parviflora (21% frequency among alien plants). Phanerophytes were the most species-rich life-form (148 species) and had the highest representation in terms of relative frequency (39%) among aliens in the dataset. Apart from Europe (181 species), North America was the most important source of alien plants (109 species). At the local scale, temperate and boreal softwood riparian woodland (5%) and mire and mountain coniferous woodland (<1%) had the highest and lowest mean relative alien species richness (percentage of alien species per plot), respectively. Main conclusions: Our results indicate that European woodlands are prone to alien plant invasions especially when exposed to disturbance, fragmentation, alien propagule pressure and high soil nutrient levels. Given the persistence of these factors in the landscape, competitive alien plant species with a broad niche, including alien trees and shrubs, are likely to persist and spread further into European woodlands.
Review of grassland habitats and development of distribution maps of heathland, scrub and tundra habitats of EUNIS habitats classification
Schaminee, J.H.J. ; Chytrý, M. ; Hennekens, S.M. ; Janssen, J.A.M. ; Jimenez-Alfaro, B. ; Knollová, Ilona ; Marceno, L. ; Mucina, L. ; Rodwell, J.S. ; Tichý, L. - \ 2016
EEA - European Environment Agency (Report EEA/NSV 15/005) - 372 p.
Balkan Vegetation Database : Historical background, current status and future perspectives
Vassilev, Kiril ; Pedashenko, Hristo ; Alexandrova, Alexandra ; Tashev, Alexandar ; Ganeva, Anna ; Gavrilova, Anna ; Gradevska, Asya ; Assenov, Assen ; Vitkova, Antonina ; Grigorov, Borislav ; Gussev, Chavdar ; Filipova, Eva ; Aneva, Ina ; Knollová, Ilona ; Nikolov, Ivaylo ; Georgiev, Georgi ; Gogushev, Georgi ; Tinchev, Georgi ; Pachedjieva, Kalina ; Koev, Koycho ; Lyubenova, Mariyana ; Dimitrov, Marius ; Apostolova-Stoyanova, Nadezhda ; Velev, Nikolay ; Zhelev, Petar ; Glogov, Plamen ; Natcheva, Rayna ; Tzonev, Rossen ; Boch, Steffen ; Hennekens, Stephan M. ; Georgiev, Stoyan ; Stoyanov, Stoyan ; Karakiev, Todor ; Kalníková, Veronika ; Shivarov, Veselin ; Russakova, Veska ; Vulchev, Vladimir - \ 2016
Phytocoenologia 46 (2016)1. - ISSN 0340-269X - p. 89 - 95.
Balkan Peninsula - Data property and governance rules - Phytosociology - TURBOVEG - Vegetation plot - Vegetation type

The Balkan Vegetation Database (BVD; GIVD ID: EU-00-019; http://www.givd.info/ID/EU-00- 019) is a regional database that consists of phytosociological relevés from different vegetation types from six countries on the Balkan Peninsula (Albania, Bosnia and Herzegovina, Bulgaria, Kosovo, Montenegro and Serbia). Currently, it contains 9,580 relevés, and most of them (78%) are geo-referenced. The database includes digitized relevés from the literature (79%) and unpublished data (21%). Herein we present descriptive statistics about attributive relevé information. We developed rules that regulate governance of the database, data provision, types of data availability regimes, data requests and terms of use, authorships and relationships with other databases. The database offers an extensive overview about studies on the local, regional and SE European levels including information about flora, vegetation and habitats.

European Vegetation Archive (EVA): a new integrated source of European vegetation-plot data
Chytry, M. ; Hennekens, S.M. ; Jiménez-Alfaro, B. ; Knollová, I. ; Dengler, J. ; Schaminee, J.H.J. - \ 2014
In: Book of Abstracts, Biodiversity & Vegetation. Patterns, Processes, Conservation. - - p. 81 - 82.
European Vegetation Archive (EVA): a new integrated source of European vegetation-plot data
Chytry, M. ; Hennekens, S.M. ; Jiménez-Alfaro, B. ; Knollová, I. ; Dengler, J. ; Schaminee, J.H.J. - \ 2014
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