Naslov
Habitats of peat mosses (Sphagnum L.) in Croatia

Autori
Alegro, Antun ; Šegota, Vedran

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Abstracts of the 10th Symposium on the Flora of Southeastern Serbia and Neighbouring Regions / Ranđelović, V. - Niš : Department of Biology and Ecology, Faculty of Sciences and Mathematics, University of Niš ; Biological Society, 2010, 25-26

Skup
Symposium on the Flora of Southeastern Serbia and Neighbouring Regions (10 ; 2010)

Mjesto i datum
Vlasotince, Srbija, 17.06.2010. - 20.06.2010

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
peat mosses; peatlands; forests; karst fields; Croatia

Sažetak
During years 2008 and 2009 extensive field research was done in order to update the knowledge about species of peat mosses occurring in Croatia, their distribution and habitats. It was found 20 species on 19 localities growing in very different plant communities. Their habitats physiognomically can be classified as bogs, different wood types or microhabitats within these woods (spruce, fir, beech, chestnut and sessile oak, and shrubberies of mountain pine) and periodically wet karst fields. The majority of species were found on open peatlands (Sphagnum palustre, Sph. capillifolium, Sph. denticulatum, Sph. contortum, Sph. subsecundum, Sph. cuspidatum, Sph. magellanicum, Sph. angustifolium, Sph. squarrosum, Sph. teres, Sph. compactum, Sph. centrale, Sph. flexuosum, Sph. papillosum and Sph. tenellum). In terms of plant sociology bog communities belongs to ass. Drosero – Caricetum stelullatae and Rhynchosporetum albae, both communities of transitive peatlands. Stands of Sphagnum medium – Polytrichum strictum and Sphagnum capillifolium – Polytrichum longisetum can be recognised as fragments of raised bogs. All peatlands are under strong pressure of natural succession. Sph. quinquefarium was found on granite and silicate rocks within beech woods (ass. Blechno-Fagetum and stands of Fagus sylvatica – Sphagnum quinquefarium). This species is also known from stands of Pinus mugo. This stands of mountain pine are developed in deep karst dolines and could be classified as ass. Pino mugo – Sphagnetum. Other peat moss species present here is Sph. girgensohnii. In wet woods of spruce and/or fir (ass. Carici brizoidis – Abietetum, Blechno – Abietetum, stands of Picea abies – Sphagnum sp. div.) Sph. platyphyllum, Sph. squarrosum, Sph. fimbriatum, Sph. angustifolium, Sph. palustre and Sph. girgensohnii develops loose or more or less dense mats. Only one locality in wood of sessile oak and chestnut is known (ass. Querco – Castanetum sativae) with spesies Sph. angustifolium and Sph. fimbriatum distributed around small shallow lake. The most unusual habitat of peat mosses is periodically flooded karst field where they grow in different grassland communities (e.g. ass. Nardetum strictae, Crepidi conyzaefoliae – Molinietum altissimae) and community of blister sedge (ass. Caricetum vesicariae). Peat mosses growing in karst field are Sph. subnitens, Sph. capillifolium, Sph. teres, Sph. palustre and. Sph. denticulatum. All described habitats have very narrow areas of distribution, and are under strong pressure of succession, change of hydrology, deforestation, and different negative human impacts. Therefore active protection measures are of urgent necessity.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

POVEZANOST RADA