Iskanje po katalogu digitalne knjižnice

Opis: In the present paper, further findings of harvestmen in the Sub Mediterranean region of Slovenia are presented, and comments on some actual problems with the species are added. With the exception of the possible discovery of a troglobitic species in the region, all species living there have presumptively been recorded. With the exclusion of Trogulus gr. nepaeformis and T. gr. tricarinatus, where more species are expected, 34 species and one subspecies have been found in the region. About 20 opilionid species are typical of the region; the others occur in the marginal habitats bordering other zoogeographical regions.
Ključne besede: zoologija, biogeografija, pajkovci, suhe južine, Opiliones, Arachnida, suhe južine, Slovenija, submediteran, zoology, biogeography, Opiliones, arachnids, harvestmen, Slovenia, Sub Mediterranean
Objavljeno v DKUM: 10.07.2015; Ogledov: 1521; Prenosov: 49
Povezava na celotno besedilo

Opis: The aim of the study was to compare how the relevés of species-rich dry grasslands (classis Festuco-Brometea) in Central and Eastern Slovenia differ among each other on the basis of floristic composition and of 11 Plant Functional Traits (PFTs). On the basis of floristic structure and cover values, the relevés were classified in three well separated clusters. In the PCA ordination, the first axes suggested a gradient of soil pH, while the second, floristically based gradient, was interpreted as soil humidity. On the basis of selected traits, 3 PFTs were clustered, but not clearly interpreted. Despite differences in environmental parameters across Slovenia (climate, geographical position, altitude, soil conditions) and variety of land use disturbances - drivers of floristic variety, no discernible difference in vegetation structure in terms of selected plant traits were perceived by PCA ordination. It could be concluded that secondary dry grasslands share rather uniform functional types with not clearly detectable structural differences among them.
Ključne besede: botanika, vegetacija, biogeografija, travišča, suha travišča, rastlinski funkcionalni znaki, rastlinski funkcionalni tipi, Slovenija, funkcionalni pristopi, botany, biogeography, vegetation, grasslands, dry grasslands, plant functional traits, plant functional types, Slovenia, functional approaches
Objavljeno v DKUM: 10.07.2015; Ogledov: 1075; Prenosov: 39
Povezava na celotno besedilo

Opis: In this paper, floristic and functional approaches to the classification of different types of sub-Mediterranean illyrian grasslands of the association Danthonio-Scorzoneretum villose lalliance Scorzonerion villosae, order Scorzoneretalia villosae, class Festuco-Brometea) are compared. The data set includes table with 30 relevés from SW Slovenia, sampled in two contrasting geological bedrocks - flysch and limestone - and matrix with 18 treits determined for 119 plant species. We also tested an impact of different geological bedrock on the relative proportions of C-S-R plant strategies in the relevés. With DCA ordinetion, relevés from limestone and flysch were clearly divided in two groups. First DCA axis suggested a gradient of soil humidity and pH. On the basis of selected traits, 5 Plant Functional Types were clustered and interpreted with Twinspan analysis. PCA ordination of relevés on the basis of plant functional traits revealed that samples from limestone could be separated from those taken on flysch substrate also with functional approach. Reievés from limestone tend to have bigger shares of species, which propagate by seed and vegetatively, and competitors and herbs. Nevertheless, it could be concluded that there are no major functional differences between meadows from both geological substrates. The positions of all relevés in standard C-S-R temary diagram showed that that the relative proportions of C-S-R functional types were not influenced by different geological bedrock.
Ključne besede: botanika, vegetacija, travišča, suhi travniki, rastlinski funkcionalni tipi, severni Jadran, C-S-R strategije rastlin, botany, biogeography, vegetation, grasslands, dry grasslands, classifcation, North Adriatic, C-S-R plant strategy
Objavljeno v DKUM: 10.07.2015; Ogledov: 1212; Prenosov: 34
Povezava na celotno besedilo