Naslov
Forest bryophyte patterns along the north-western Dinaric altitudinal gradients (Croatia)

Autori
Šegota, Vedran ; Alegro, Antun ; Dragičević, Snežana ; Rimac, Anja

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

Izvornik
European Vegetation Survey: methods and approaches in a changing environment. Book of abstracts. / Attorre, Fabio ; Biurrun, Idoia ; Chytrý, Milan ; Kuzemko, Anna ; Schaminée, Joop - Rim : Department of Environmental Biology, Sapienza University of Rome, 2023, 100-100

Skup
31st Conference of the European Vegetation Survey

Mjesto i datum
Rim, Italija, 21.05.2023. - 25.05.2023

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
alpha diversity, distribution patterns, elevation, spruce forests, species turnover

Sažetak
Bryophytes are a diverse group of land plants, but due to difficulties in their identification, they have rarely been included in biodiversity surveys. As they are found from sea level to mountain summits, they are ideal candidates for altitudinal studies. Analysis of bryophyte diversity was undertaken to elucidate the richness and floristic composition of the eight forest altitudinal belts along two Dinaric mountains. A total of 185 species (40 liverworts and 145 mosses) were encountered. The lowest total number of bryophytes is in the lowest holm oak (Fraxino orni-Quercetum ilicis Horvatić (1956) 1958) altitudinal belt and the highest in the complex of spruce communities (Vaccinio-Piceion Oberd. 1957). Patterns of alpha diversity were best described by the cubic regression function with diversity maxima approximately between 1.100 and 1.200 m a.s.l. The most prominent species turnover appears between boreal spruce and subalpine beech belts and between subalpine beech and pine Krummholz belts. Bryophytes exhibit the highest abundances in spruce and mixed beech and fir communities and the lowest in thermophilic (Oriental hornbeam and holm oak) communities. The diagnostic species of low- altitude thermophilic forests are Rhynchostegium confertum, Rhynchostegiella tenella, Fissidens taxifolius, Leptodon smithii, Zygodon rupestris, Frullania cesatiana, Orthotrichum diaphanum and Scorpiurium circinatum, of mixed beech and fir forests Exsertotheca crispa and Ulota crispa, of spruce forests Rhytidiadelphus loreus, Plagiothecium laeutum, Chiloscyphus polyanthos, Polytrichum formosum, Dicranum tauricum, Buxbaumia viridis and Herzogiella seligeri, of subalpine beech forests Paraleucobryum sauteri, Leskurea saviana and L. incurvata, while of pine Krumholtz vegetation Rhytidiadelphus triquetrus. The altitudinal zonation of bryophytes demonstrates that these plants respond to elevational gradient in terms of species richness, floristic composition and phytogeographical patterns.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

POVEZANOST RADA