Abstract
Riparian zones support high biodiversity and are among the most vulnerable parts of the landscape. Their degradation facilitates the spread of invasive alien plant species. Our aim was to investigate the relationship between environmental characteristics of riparian zones and distribution and abundance of invasive alien plant taxa (IAT) along three rivers in Slovenia. In 100-m reaches of riparian zone we determined environmental characteristics and the presence and abundance of IAT. Canonical correspondence analysis was used to assess the relationship between IAT and environmental factors. The numbers and abundances of IAT in specific reaches were correlated with environmental factors using Spearman coefficient. These results revealed that the number and abundance of IAT in riparian zone were strongly positively correlated to the distance from river source, while they were negatively correlated with altitude, vegetation structure complexity, completeness of riparian zone and current velocity. Environmental factors that explained the distribution and abundance of IAT significantly were: the altitude, flow dynamics, distance from source, width of riparian zone, land-use, bank and channel structure, water depth and velocity. The research has pointed out the need for proper management of riparian zones to prevent invasion by IAT and also to strengthen other services provided by riparian zone as buffering anthropogenic impacts to water body, stabilising bank structure and increasing biodiversity.
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© 2015 Institute of Botany, Slovak Academy of Sciences
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Artikel in diesem Heft
- Anoxybacillus sp. AH1, an α-amylase-producing thermophilic bacterium isolated from Dargeçit hot spring
- Purification and characterization of antifungal chitinase from Bacillus safensis MBCU6 and its application for production of chito-oligosaccharides
- Vulnerability of a riparian zone towards invasion by alien plants depends on its structure
- The Paliurus spina-christi dominated vegetation in Europe
- Reciprocal contamination by invasive plants: analysis of trade exchange between Slovakia and Romania
- Agrobacterium-mediated transformation of chitinase gene from the actinorhizal tree Casuarina equisetifolia in Nicotiana tabacum
- Effects of exogenous abscisic acid on foliar anthocyanin accumulation and drought tolerance in purple rice
- Role of sulphur conferring differential tolerance to iron deficiency in Pisum sativum
- A new species of the genus Leptus (Acari: Erythraeidae) ectoparasitic on Acrididae (Insecta: Orthoptera) from Iran
- Thrips (Thysanoptera) associated with two morphological forms of Andean lupin (Lupinus mutabilis)
- Seasonal dynamics and life cycle of Heterotrissocladius marcidus (Diptera: Chironomidae) in high altitude lakes (High Tatra Mts, Slovakia)
- The parasite community of gobiid fishes (Actinopterygii: Gobiidae) from the Lower Volga River region
- External ontogenetic changes of larval structures in Elachistocleis bicolor (Anura: Microhylidae: Gastrophryninae)
- Influence of moonlight on nightjars’ vocal activity: a guideline for nightjar surveys in Europe
- Craniometric data of Apodemus sylvaticus in Slovakia
- Production of human interferon alpha-2b in Escherichia coli and removal of N-terminal methionine utilizing archaeal methionine aminopeptidase