The vegetation of Buna River Protected Landscape is described. The area comprises both the alluvial plain of the lower course of the Buna river that marks the boundary between Montenegro and Albania, ...and a carbonatic range. The vegetation is characterized by a high β-diversity (27 alliances and 46 associations), especially in wetlands and dry grasslands. In the area it is possible to distinguish 1 dunal and 4 hygro-sequences in the alluvial plain and 3 xeroseries in the carbonatic range. Associations Clematido viticellae-Punicetum granati and Periploco graecae-Alnetum glutinosae are described as new.
V članku je opisana vegetacija v zavarovanega območja ob reki Buna. Območje obsega aluvialno ravnino ob spodnjem teku reke Buna, ki predstavlja mejo med Črno goro in Albanijo in karbonatnim hribovjem. Za vegetacijo je značilna visoka β diverziteta (27 zvez in 46 asociacij), še posebej pa mokrišča in suha travišča. V območju smo izločili 1 sekvenco na sipinah, 4 higro sekvence na aluvialni ravnici in 3 ksero serije na karbonatnem masivu. Asociaciji Clematido viticellae-Punicetum granati in Periploco graecae-Alnetum glutinosae sta novo opisani.
The Mediterranean area is a natural biodiversity hotspot that has also been influenced by humans for millennia. Especially the grasslands of Southern Europe have long been known for their diversity ...and beauty. However, several gaps remain in our knowledge about these grasslands, e.g. for some regions such as the southern Balkans, or taxonomic groups such as cryptogams. Here we introduce a Special Issue with contributions from the 9th European Dry Grassland Group meeting held in Prespa, Greece, 2012. The topic of this meeting was “Dry grasslands of Europe: grazing and ecosystem services” with special focus on Southern European regions. The Special Issue, apart from this Editorial, consists of eight contributions arranged according to the three major topics: syntaxonomy (5 articles), management (2) and conservation (1). The classification papers include descriptions of four new associations and four subassociations. Data about management practices are provided as well. We conclude that dry grassland vegetation in Southern Europe exhibits transitions between different higher syntaxa and thus requires further studies at broader scales to allow better understanding at the supranational scale.
Mediteran je naravna vroča točka biodiverzitete, na katero je človek tisočletja močno vplival. Po svoji raznolikosti in lepoti so še posebej že dolgo znana travišča južne Evrope, vendar so v poznavanju teh travišč prisotne številne vrzeli na območju južnega Balkana ali posameznih taksonomskih skupin, kot so kriptogami. Predstavljamo posebno številko s prispevki z 9. srečanja Evropske skupine za suha travišča (European Dry Grassland Group), ki je bilo leta 2012 v mestu Prespa (Grčija). Tema srečanja je bila “Suha travišča Evrope: paša in ekosistemske storitve” s posebnim poudarkom na območjih južne Evrope. Posebno številko poleg tega uvodnika sestavlja osem prispevkov, ki smo jih uredili v tri glavne teme: sintaksonomijo (5 člankov), gospodarjenje (2) in ohranjanje travišč (1). Članki o klasifikaciji vsebujejo opise štirih novih asociacij in štirih subasociacij. Prav tako vsebujejo podatke o načinu gospodarjenja. Zaključimo lahko, da kaže vegetacija suhih travišč v južni Evropi prehod med različnimi višjimi sintaksoni in zato so potrebne nadaljnje raziskave v večjem merilu, ki bodo omogočile boljše razumevanje v nadnacionalnem merilu.
A total of 546 releves collected in western Bulgaria and referred to Festuco-Brometea were classified into the alliances Festucion valesiacae, Saturejion montanae, Cirsio-Brachypodion pinnati and ...Chrysopogono-Danthonion calycinae. All releves assigned to alliance Cirsio-Brachypodion pinnati were further classified towards lower level which resulted in the description of a new association - Hieracio pilosellae-Festucetum dalmaticae and two new subassociations added to ass. Galio lovcense-Artemisietum chamaemelifoliae. Both associations were ecologically well differentiated on the basis of soil parameters (pH and humus content) as well as some additional factors (exposition, land use, etc.).
V zahodni Bolgariji smo naredili 546 vegetacijskih popisov, ki jih uvrščamo v razred Festuco-Brometea in dalje v zveze Festucion valesiacae, Saturejion montanae, Cirsio-Brachypodion pinnati in Chrysopogono-Danthonion calycinae. Vse popise, ki smo jih uvrstili v zvezo Cirsio-Brachypodion pinnati smo členili na nižje sintaksonomske enote. Opisali smo novo asociacijo - Hieracio pilosellae-Festucetum dalmaticae in dodali dve novi subasociaciji k asociaciji Galio lovcense-Artemisietum chamaemelifoliae. Obe asociaciji sta ekološko jasno ločeni na podlagi talnih parametrov (pH in vsebnost humusa) in nekaterih dodatnih dejavnikov (ekspozicija, raba tal, itd.).
The present paper describes the floristic composition and synecology of steppe-like dry grasslands occurring in a Natura 2000 site in North-Central Greece around the two karstic lakes of Vegoritida ...and Petron. In total, 245 releves of vascular plant species composition and abundance were sampled and subjected to cluster analysis and ordination analysis. Passive explanatory variables, including environmental parameters as well as indicator values, were used to support the ecological interpretation. Four plant communities were distinguished in the area, namely Artemisia campestris-Dasypyrum villosum, Chrysopogon gryllus-Bothriochloa ischaemum, Satureja montana-Artemisia alba and Stipa capillata-Koeleria macrantha. All communities were classified within the Festuco-Brometea class and the Astragalo-Potentilletalia order. Soil properties (soil reaction, moisture and nutrient content) and meso-climate factors (temperature variation along topographic gradients) were identified as the main factors determining the floristic differentiation among the four communities.
The dry grasslands harbor a number of species associated with steppic habitats. We discuss the relict character of the steppe-like vegetation.
V članku opisujemo floristično sestavo in sinekologijo stepi podobnih suhih travišč, ki se pojavljajo v Natura 2000 območju v severni centralni Grčiji okoli dveh kraških jezer Vegoritida in Petron. Vzorčili smo 245 vegetacijskih popisov in jih analizirali s klastrsko in ordinacijsko analizo. Rastišče smo interpretirali s pasivnimi pojasnjevalnimi spremenljivkami, kamor smo vključili okoljske spremenljivke in indikatorske vrednosti. Na raziskovanem območju smo ločili štiri rastlinske združbe: Artemisia campestris-Dasypyrum villosum, Chrysopogon gryllus-Bothriochloa ischaemum, Satureja montana-Artemisia alba in Stipa capillata-Koeleria macrantha. Vse združbe smo uvrstili v razred Festuco-Brometea in red Astragalo-Potentilletalia. Lastnosti tal (reakcija tal) in mezo klimatski dejavniki (spreminjanje temperature vzdolž topografskih gradientov) so glavni dejavniki, ki vplivajo na floristične razlike med štirimi rastlinskimi združbami.
V suhih traviščih najdemo številne vrste stepskih habitatov. V članku razpravljamo o reliktnem značaju stepi podobne vegetacije.
Distribution, morphological types and coenotic affinity of Gagea bohemica in Slovakia was studied during 2008-2011. Revision of herbarium material showed presence of three taxa in the flora: 1) ...subsp. bohemica, 2) subsp. bohemica var. stenochlamydea and 3) subsp. saxatilis. Taxonomic status of var. stenochlamydea is uncertain and requires further research. In total, 42 localities of G. bohemica sensu lato were documented. Nominate subsp. bohemica (including var. stenochlamydea) predominated and it was recently confirmed at 21 localities. These current sites represent about 50% of all known sites, therefore we re-assessed the status of G. bohemica in the Slovak Red List and we proposed the IUCN category EN (endangered) for this taxon. Subsp. saxatilis was found as new to Slovakia. The taxon occurred only at single locality (Vinosady) and it was not confirmed recently. We assessed it as data deficient (DD).
Proučevali smo razširjenost, morfološke tipe in fitocenološko navezanost vrste Gagea bohemica na Slovaškem v obdobju 2008-2011. Z revizijo herbarijskega materiala smo dokazali prisotnost treh taksonov: 1) subsp. bohemica, 2) subsp. bohemica var. stenochlamydea in 3) subsp. saxatilis. Taksonomski status var. stenochlamydea je negotov in potrebne so dodatne raziskave. Skupno smo zabeležili 42 lokalitet vrste G. bohemica sensu lato. Podvrsta subsp. bohemica (ki vključuje tudi var. stenochlamydea) prevladuje in je bila potrjena na 21 lokalitetah. Ta rastišča predstavljajo približno polovico vseh znanih, zato smo ponovno ocenili status vrste G. bohemica v Rdečem seznamu Slovaške in za ta takson predlagamo IUCN kategorijo EN (prizadeta vrsta). Pojavljenje podvrste subsp. saxatilis je novo na Slovaškem. Našli smo jo samo na eni lokaliteti (Vinosady) in uspevanje v zadnjem času ni bilo potrejno. Ocenjujemo jo s kategorijo DD (premalo podatkov).
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