41. New records and noteworthy data of plants, algae and fungi in SE Europe and adjacent regions, 7Marko S. Sabovljević, Gordana Tomović, Predrag Lazarević, Maja Lazarević, Snežana Vukojičić, Snežana Vukojičić, Ivana Trbojević, Jovana Pantović, Simona Strgulc-Krajšek, Darja Kopitar, Uroš Buzurović, Sanja Z. Djurović, Lado Kutnar, Janez Kermavnar, Zbigniew Szeląg, Petya Boycheva, Dobri Ivanov, Milorad Veljković, Vladan Djordjević, Sorin Stefanut, Constantin-Ciprian Bîrsan, 2022, izvirni znanstveni članek Povzetek: his paper presents new records and noteworthy data on the following taxa in SE Europe and adjacent regions: stonewort Chara intermedia, liverworts Fossombronia wondraczekii and Pseudomoerckia blyttii, mosses Hamatocaulis vernicosus and Hookeria lucens, monocots Gladiolus palustris, Neotinea tridentata, and Orchis militaris and dicots Cardamine serbica, Cardamine waldsteinii, Hieracium kotschyanum and Pilosella petraea are given within SE Europe and adjacent regions.
Ključne besede: new report, Cardamine serbica, Cardamine waldsteinii, Chara intermedia, Gladiolus palustris, Fossombronia wondraczekii, Hamatocaulis vernicosus, Hieracium kotschyanum, Hookeria lucens, Neotinea tridentata, Orchis militaris, Pilosella petraea, Pseudomoerckia blyttii, SE Europe
Objavljeno v DiRROS: 20.04.2022; Ogledov: 512; Prenosov: 381
 Celotno besedilo (176,40 KB)
Gradivo ima več datotek! Več... |
42. Variation in floristic and trait composition along environmental gradients in the herb layer of temperate forests in the transition zone between Central and SE EuropeJanez Kermavnar, Lado Kutnar, Aleksander Marinšek, 2022, izvirni znanstveni članek Povzetek: Species- and trait-environment linkages in forest plant communities continue to be a frequent topic in ecological research. We studied the dependence of floristic and functional trait composition on environmental factors, namely local soil properties, overstory characteristics, climatic parameters and other abiotic and biotic variables. The study area comprised 50 monitoring plots across Slovenia, belonging to the EU ICP Forests monitoring network. Vegetation was surveyed in accordance with harmonized protocols, and environmental variables were either measured or estimated during vegetation sampling. Significant predictors of species composition were identified by canonical correspondence analysis. Correlations between plant traits, i.e. plant growth habit, life form, flowering features and CSR signature, were examined with fourth-corner analysis and linear regressions. Our results show that variation in floristic composition was mainly explained by climatic parameters (mean annual temperature, mean annual precipitation), soil properties (pH) and tree layer-dependent light conditions. Trait composition was most closely related with tree layer characteristics, such as shade-casting ability (SCA, a proxy for light availability in the understory layer), tree species richness and tree species composition. Amongst soil properties, total nitrogen content and soil texture (proportion of clay) were most frequently correlated with different species traits or trait states. The CSR signature of herb communities was associated with tree layer SCA, soil pH and mean annual temperature. The floristic composition of the studied herb-layer vegetation depended on temperature and precipitation, which are likely to be influenced by ongoing climate change (warming and drying). Trait composition exhibited significant links to tree layer characteristics and soil conditions, which are in turn directly modified by forest management interventions.
Ključne besede: vegetation–environment relationship, floristic composition, life-history traits, herbaceous species, Slovenia
Objavljeno v DiRROS: 15.04.2022; Ogledov: 623; Prenosov: 386
Celotno besedilo (2,43 MB)
Gradivo ima več datotek! Več... |
43. Tveganja, koristi in upravljanje s tujerodnimi drevesnimi vrstami v alpskem prostoru : rezultati spletne anketeAnica Simčič, Ajša Alagić, Janez Kermavnar, Lado Kutnar, Simon Zidar, Aleksander Marinšek, 2022, izvirni znanstveni članek Povzetek: Prispevek predstavlja mnenja in poznavanje tujerodnih drevesnih vrst (TDV) deležnikov, ki pri svojem delu prihajajo v stik s TDV v gozdnih, urbanih in periurbanih območjih v Sloveniji. Mnenja smo pridobili s spletno anketo v letu 2020, ki je bila v okviru projekta ALPTREES del raziskave v vsaki od petih partnerskih držav (Slovenija, Avstrija, Nemčija, Italija in Francija) alpskega prostora. Analizirali smo odgovore slovenskih deležnikov in tako pridobili informacije o poznavanju, dojemanju in odnosu deležnikov do TDV. S spletnim anketiranjem smo dobili odgovore na vprašanja 120 posameznikov. Z analizo odgovorov smo ugotovili, da večina anketirancev prepoznava TDV in invazivne tujerodne drevesne vrste (ITDV) v Sloveniji. Na splošno anketiranci menijo, da TDV prinašajo tveganje v alpski prostor. Anketiranci so kot najbolj razširjene TDV ocenili robinijo (Robinia pseudoacacia), veliki pajesen (Ailanthus altissima), pavlovnijo (Paulownia tomentosa), navadno ameriško duglazijo (Pseudotsuga menziesii), rdeči hrast (Quercus rubra) in zeleni bor (Pinus strobus). Med najbolj invazivne TDV uvrščajo robinijo, veliki pajesen, pavlovnijo, octovec (Rhus typhina) in ameriški javor oz. negundovec (Acer negundo). Slaba polovica anketirancev je izrazila srednje veliko zaskrbljenost glede vpliva ITDV, kar četrtina vprašanih pa je zaradi TDV zelo zaskrbljena.
Ključne besede: tujerodne drevesne vrste, invazivne tujerodne drevesne vrste, alpski prostor, upravljanje, tveganje
Objavljeno v DiRROS: 08.03.2022; Ogledov: 945; Prenosov: 293
Celotno besedilo (431,99 KB) |
|
