Invasive Traits of Symphyotrichum squamatum and S. ciliatum: Insights from Distribution Modeling, Reproductive Success, and Morpho-Structural Analysis

Biology, Journal Year: 2025, Volume and Issue: 14(1), P. 47 - 47

Published: Jan. 9, 2025

Understanding the drivers of invasive species' success is essential for predicting and managing their ecological impacts. Symphyotrichum squamatum, a South American species first recorded in Bucharest 2015, currently expanding into urban peri-urban areas Romania, raising concerns about its potential. This study provides comprehensive assessment invasiveness by integrating distribution modeling, reproductive trait analysis, morpho-structural evaluations. To deepen our understanding, we compare S. squamatum with ciliatum, already to identify shared traits potentially driving invasiveness. Using R software (version 4.3.0) bioclimatic variables, modeled potential both species. The was evaluated through germination tests on seeds from distinct Romanian populations, while anatomical analyses revealed adaptations linked Our findings indicate that shares successful invaders, as highlighted comparison ciliatum. However, expansion Romania appears be constrained environmental factors, continentality emerging key determinant influencing highlights importance combining modeling trait-based assess potential, offering robust framework alien

Language: Английский

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The vascular flora of the lower Sieve Valley (Tuscany, central Italy)

Italian Botanist, Journal Year: 2025, Volume and Issue: 19, P. 1 - 14

Published: Jan. 13, 2025

A comprehensive checklist of vascular flora occurring in the lower Sieve Valley basin (province Florence, Tuscany) is presented. Despite its economic and agricultural significance, this territory has been largely overlooked by botanists, resulting a substantial gap floristic information. The based on bibliographic analysis field studies carried out between 2018 2024. total 1034 spontaneous taxa (species subspecies), including 141 aliens, are reported for territory. Of these, 21 represent new records or confirmations province Florence 893 to Valley. Tilia americana L. Sequoia sempervirens (D.Don) Endl. newly Tuscany Populus × canadensis Moench nothosubsp. should be considered as naturalized alien region. Life forms chorotypes exhibit pronounced Eurosiberian affinities, with significant contribution from Mediterranean plants. This pattern aligns temperate continental climate area, which partially influenced summer aridity.

Language: Английский

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Native seed density and non‐native invasive species arrival order independently affect biotic resistance to invasion

Journal of Applied Ecology, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 7, 2025

Abstract An essential objective in ecological restoration is enhancing the biotic resistance of native plant communities by promoting competition between invasive and species. However, little known about how sowing density species arrival order affect communities. We established a experiment Republic Korea involving mix four an species, leveraging concepts priority effects. The seeds were sown at three relative densities (low, medium, high), targeted ( Ageratina altissima L.) was introduced different time points (2 weeks ahead simultaneously, 2, 4, 6 after species). computed average competitive index (RCI avg ) using density, cover, height increased with increasing seed densities. RCI values 0.43, 0.64, 0.78 for low, moderate, high densities, respectively. Furthermore, delaying invasion enhanced competitively excluded if arrived 4 These findings underscore interactions effects, revealing that early improves to invasion. Based on Pearson correlation coefficients r ), resident plants influenced height. Monthly observations cover clearly showed consistent increase high‐density communities, this sustained entire duration experiment. Synthesis applications . This study reveals diverse effects can promote exclude from sites.

Language: Английский

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Plant Diversity and Sustainable Landscape Management: The Case of Misiliscemi, a New Municipality in Sicily

Plants, Journal Year: 2025, Volume and Issue: 14(4), P. 548 - 548

Published: Feb. 10, 2025

Floristic and biodiversity knowledge play a crucial role in ecosystem conservation sustainable land management, particularly urban-rural contexts that can serve as reservoirs, hosting species of high biogeographic value. Focusing on the new municipality Misiliscemi, established 2021 Sicily now facing challenge developing management strategies, this study provides fundamental plant area explores how integration floristic environmental data guide territorial planning strategies aimed at preserving natural capital services. The research, based field surveys conducted over many years, taxonomic identification species, analysis biological forms chorological data, evaluation ecological indicators, GIS-based habitat mapping according to EUNIS classification, has made it possible obtain comprehensive dataset. results work led 623 taxa, recording findings for Sicilian flora, including both native alien which represent primary resource management. In addition, 42 types were mapped, highlighting approximately 80% territory is occupied by vegetated man-made habitats. Despite anthropogenic pressures landscape modifications, Misiliscemi retains significant biodiversity, habitats interest, vital This base, addition constituting scientific foundation upon young develop an urban strategy achieving local development, also represents methodological approach highlights basic should be considered aspect worldwide.

Language: Английский

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Diachronic Analysis of the Floristic Diversity of the Special Area of Conservation (SAC) “Bosco di Santo Pietro” (South-Eastern Sicily): A Mediterranean Biodiversity Hotspot

Plants, Journal Year: 2025, Volume and Issue: 14(5), P. 788 - 788

Published: March 4, 2025

This study presents a complete and updated checklist of the vascular flora SAC “Bosco di Santo Pietro”, an important natural area located in south-eastern Sicily. Through integrated approach combining field research, analysis historical herbariums literature review, 583 taxa belonging to 78 families 339 genera were identified. A comparison with older floristic list Pietro Forest dating back 1889 highlights some significant changes, such as decrease several hygrophilous nemoral species probably due climate change habitat degradation. In particular, our diachronic reveals disappearance 178 persistence 199 representing 47% 53% 377 listed first inventory, respectively. From Ellenberg indicator two lists, lower values L T higher M N emerge flora, testifying environmental modifications for more than century this Sicilian Mediterranean hotspot.

Language: Английский

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