Typificati on and Correction of Syntaxa From the Class Molinio-Arrhenatheretea Tx. 1937 in Serbia

Abstract

A list of corrected and typified grassland communities of the class Molinio-Arrhenatheretea Tx. 1937 occurring in Serbia was provided. The nomenclature rules of the International Code of Phytosociological Nomenclature were strictly followed. Syntaxonomic affiliation of communities to higher syntaxa was assessed according to the existing syntaxonomical schemes for Serbia, i.e. according to the position determined by the original source. Higher syntaxa followed the synsystem of the so-called “EuroVegChecklist”. Since syntaxonomic disagreements concerning a certain plant association’s position within the whole classification system have not been discussed, such a list should serve as the starting point for a further revision of the status of grassland communities in Serbia. So far, a total of 87 plant communities of the class Molinio-Arrhenatheretea were described for Serbia. The list provided here will enable more precise and more accurate mapping of vegetation in Serbia, as well as classification of these communities into the Habitat Directive which will enable the establishment of the Red list of Habitats for Serbia.

Diversity of wet and mesic grasslands along a climatic gradient on the southern margin of the Pannonian Basin

“…Semi‐natural wet and mesic grasslands of Molinio ‐ Arrhenatheretea in the study area along the southern margin of the Pannonian basin were divided into 14 alliances, initially based on expert judgement but subsequently confirmed using K ‐means classification. Twelve of them were considered alliances in previous vegetation overviews (Šilc and Čarni, 2012; Aćić et al , 2013; Mucina et al , 2016; Škvorc et al , 2017), while one represented a new alliance Salvio nemorosae ‐ Arrhenatherion and the last one was Alopecurion pratensis , which had been previously considered as a synonym of Deschampsion (Mucina et al , 2016). Application of different methods of unsupervised classification of vegetation data often results in different incompatible results due to numerical methods depending on the choice of the classification algorithm, resemblance measure, methods of species cover transformation and data set structure (Tichý et al , 2011, 2014).…”

“…Within Deschampsion we recognized only Succisello inflexae ‐ Deschampsietum cespitosae with three subassociations (Appendices and ). Caricetum tricostato ‐ vulpinae sensu Horvatić, 1930 which is often considered within Deschampsion (Trinajstić, 2008; Aćić et al , 2013) was not recognized. Many of the relevés originally assigned to this association were eliminated as outliers.…”

“…Three associations were recognized within this alliance. Oenantho banaticae ‐ Alopecuretum pratensis Parabućski et Stojanović ex Aćić et al 2013 was not recognized but was integrated within Ranunculo acris ‐ Alopecuretum pratensis as a drier subassociation filipenduletosum. At the same time, Rhinantho ‐ Filipenduletum Ilijanić 1969 nom.…”

“…Deschampsion are also recognized as a separate habitat in the EUNIS classification system, 'Hygromesophile medio-European lowland hay meadows' (E2.222), with a species composition intermediate between that of mesophile and humid meadows (Rodwell et al, 2002). Stančić (2008) and Šilc et al (2014) as Cynosurion cristati (Trinajstić, 2008) or Arrhenatherion elatioris (Aćić et al, 2013) or it is assigned as transitional between Arrhenatherion and Deschampsion (Stančić, 2008;Šilc et al, 2014; Appendix S4). Our classification supports the findings of Stančić (2008) who found that the Bromo-Cynosuterum cristati described by Horvatić and Tomažić (1941) has been taken too wide and should be divided into several associations within different alliances (Appendix S4).…”

Grassland vegetation of the Molinio‐Arrhenatheretea class in the NW Balkan Peninsula

“…In our numerical classification, communities of Agrostion albae from Serbia are classified into Potentillion anserinae (Aćić et al. ).…”