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Habitat degradation facilitates the invasion of Neophytes [Elektronski vir] : a resurvey study based on permanent vegetation plots in oak forests in Slovenia (Europe)Kermavnar, Janez ; Kutnar, LadoThe spread of neophytes (non-native plant species) challenges the conservation status and ecological integrity of forests, especially in lowland areas. Long-term resurvey studies are needed to ... evaluate the temporal dynamics of neophytes in forests; however, such data are scarce. In 2023, we resampled a set of 45 permanent vegetation plots (established in 1992/93) in two forest vegetation types: oak–hornbeam forests dominated by Quercus robur and colline oak–beech forests dominated by Q. petraea. Over the last 30 years, oak forests have experienced extensive oak tree mortality, with the degree of habitat degradation being greater in Q. robur forests. In the early 1990s, only three neophytes with low abundance were recorded across all plots. In the 2023 resurvey, the total number of neophytes increased to 22 species (15 herbaceous and 7 woody species), comprising 6.9% of the total species pool in the understory layer. The increase in the plot-level number and cover of neophytes was significant in plots dominated by Q. robur but not in those with Q. petraea. The most frequent neophytes were Impatiens parviflora (present in 31% of plots), Solidago gigantea (27%), Erigeron annuus (16%) and Erechtites hieraciifolia (16%). The richness and cover of neophytes were significantly affected by the tree layer cover (negative correlation) and the degree of soil disturbance (positive correlation). All neophytes established in disturbed patches, whereas the occurrence of I. parviflora was exceptional as it was able to colonize less degraded, shaded understory environments. Habitat degradation (the mortality-induced loss of stand-forming oak trees resulting in extensive tree layer cover decrease) emerged as a key driver promoting neophyte proliferation, coupled with the impact of management-induced disturbances affecting overstory and soil conditions. The spread is expected to continue or even intensify in the future because novel light regimes and disturbances make forest habitats less resistant to neophyte proliferation.Vir: Plants [Elektronski vir]. - ISSN 2223-7747 (Vol. 13, iss. 7, 2024, str. 1-19)Vrsta gradiva - e-članekLeto - 2024Jezik - angleškiCOBISS.SI-ID - 191081987
Avtor
Kermavnar, Janez |
Kutnar, Lado
Teme
dolgoročna sprememba vegetacije |
invazivne tujerodne rastline |
odmiranje hrasta |
Quercus robur |
Quercus petraea |
dob |
graden |
odprtost krošnje |
Impatiens parviflora |
drobnocvetna nedotika |
Slovenija |
long-term vegetation change |
invasive non-native plants |
oak mortality |
Quercus robur |
Quercus petraea |
canopy openness |
Impatiens parviflora |
Slovenia
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Avtor | Kermavnar, Janez ; Kutnar, Lado |
Naslov | Habitat degradation facilitates the invasion of Neophytes [Elektronski vir] : a resurvey study based on permanent vegetation plots in oak forests in Slovenia (Europe) |
Datum objave | 2024-03-24 |
COBISS.SI-ID | 191081987 |
Verzija objave v repozitoriju | Založnikova različica |
Licenca objave v repozitoriju | Creative Commons Priznanje avtorstva 4.0 Mednarodna |
Embargo | Takojšnja javna objava |
Projekti, iz katerih je bila financirana objava
Naziv | Akronim | Številka projekta | Financer |
---|---|---|---|
Spremembe gozdne vegetacije zaradi vplivov globalnih in lokalnih okoljskih sprememb v daljšem časovnem obdobju | Z4-4543-2022 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
|
Gozdna biologija, ekologija in tehnologija | P4-0107-2020 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
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APC – strošek objave članka | 3089.14 € |
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Kermavnar, Janez | 39085 |
Kutnar, Lado | 15108 |
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