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1.
Presence of alien Prunus serotina and Impatiens parviflora in lowland forest fragments in NE Slovenia
Mirjana Šipek, Eva Horvat, Ivana Vitasović Kosić, Nina Šajna, 2022, izvirni znanstveni članek

Opis: Temperate alluvial, riparian and lowland forests are the European forests with the greatest presence of invasive alien plants. Consequently, identifying the environmental conditions for and other drivers behind the establishment of invasive species in natural forest communities is crucial for understanding the invasibility of these habitats. We focused on fragments (patches) of Illyrian oak-hornbeam forest in NE Slovenia, which are the least studied in this regard. Because alien phanerophytes and therophytes are significantly over-represented compared to native plantsin lowland forests, we selected two representative invasives: the phanerophyte Prunus serotina and the therophyte Impatiens parviflora. By using logistic regression models on vegetation surveys, environmental data based on Ellenberg´s indicator values, and patch metrics, we identified patch characteristics explaining the presence of each species. Moreover, we included human impact in the models. We reveal significant characteristics differentiating P. serotina from I. parviflora. We also show that the perimeterarea ratio and soil nutrients of the forest patches correlate significantly with the presence of P. serotina, while human disturbance correlates significantly with the presence of I. parviflora. Our results and a similar approach for other invasive plant species can be applied to assess habitat invasibility on potential and species’ current geographic distribution, as well as to develop management plans.
Ključne besede: biological invasions, forest fragmentation, landscape metrics, habitat characteristics, human presence, anthropogenic factors, neophytes, Slovenia
Objavljeno v DKUM: 12.07.2024; Ogledov: 136; Prenosov: 11
.pdf Celotno besedilo (460,99 KB)
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2.
The spread of invasive neophytes in the riparia vegetation of the Tichá Orlice
Lenka Hajzlerová, Tomáš Matějček, 2011, izvirni znanstveni članek

Opis: This article summarises the observations and findings gained during the field survey of invasive neophytes in riparian vegetation of the river of Tichá Orlice in the Czech Republic. Seventeen taxa that could significantly load the riparian vegetation of the given area were chosen. A methodology of mapping and surveying which was designed by Matějček (2009) was applied. Using this methodology, neophytes were recorded in segments (500 m long parts of the river channel). The occurrence was expressed by the means of a logarithmic scale. Final data were evaluated with the aid of indexes for individual segments or groups of segments. As more parts of the river channel network of the Czech Republic have been mapped and surveyed this way, it is possible to compare the final data and results. In the riparian vegetation of the Tichá Orlice following plants were registered most frequently: Himalayan Balsam (Impatiens glandulifera), Small Balsam (Impatiens parviflora) and Reynoutria (Reynoutria sp. div.) The mapped part of the Tichá Orlice is, in comparison to other watercourses, belongs to the watercourses that are loaded with the invasive kinds of plants more than average.
Ključne besede: invasive plants, neophytes, the river of Tichá Orlice, mapping, riverbank
Objavljeno v DKUM: 04.04.2018; Ogledov: 902; Prenosov: 119
.pdf Celotno besedilo (190,68 KB)
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