Eugenia Siccardi, Mariasole Calbi, Bruno Foggi, Lorenzo Lazzaro, Alice Misuri, Virginia Amanda Volanti, Lorella Dell'Olmo, Daniele Viciani, Michele Mugnai
{"title":"重游地中海小岛：植被在过去15年里是如何变化的","authors":"Eugenia Siccardi, Mariasole Calbi, Bruno Foggi, Lorenzo Lazzaro, Alice Misuri, Virginia Amanda Volanti, Lorella Dell'Olmo, Daniele Viciani, Michele Mugnai","doi":"10.1111/jvs.70038","DOIUrl":null,"url":null,"abstract":"<div>\n \n \n <section>\n \n <h3> Questions</h3>\n \n <p>The resurvey of historical vegetation plots has become a fundamental methodology in ecological research, as it provides a unique opportunity to estimate vegetation and environmental changes over time. Small islands are among the ecosystems where the effects of anthropogenic processes may be more detectable and less predictable. This research aimed to evaluate how the different vegetation types of a small Mediterranean island have changed over the last 15 years, both in terms of species and function and to relate these changes to the dominant land cover dynamics.</p>\n </section>\n \n <section>\n \n <h3> Location</h3>\n \n <p>Island of Pianosa, Tuscan Archipelago, Italy.</p>\n </section>\n \n <section>\n \n <h3> Methods</h3>\n \n <p>Revisiting 63 georeferenced vegetation plots in spring 2023, ensuring a close adherence to historical methodology and plot location. For each plot, vegetation changes related to processes detectable in the field (regression, dynamics, alien species or none) were assessed, and taxonomic and functional turnover was calculated. In parallel, NDVI changes were assessed on satellite images acquired during the two periods. In addition, two high-resolution orthophotos from 2007 and 2023 were used to classify land cover types into three classes: bare soil, grass and woody vegetation, and to assess changes in land cover types within a 20-m buffer around the plots.</p>\n </section>\n \n <section>\n \n <h3> Results</h3>\n \n <p>We assessed differences between vegetation types and the type of process detected for taxonomic and functional turnover, NDVI distances and land cover changes. The main drivers of taxonomic and functional turnover were the encroachment of typical shrub species into grasslands and a shift towards higher leaf area and height in rocky cliff communities, probably driven by higher levels of disturbance.</p>\n </section>\n \n <section>\n \n <h3> Conclusions</h3>\n \n <p>Our results shed light on the main drivers of change in small island contexts over a short time. These findings could provide crucial information for the conservation of Mediterranean habitats and the adequate representation of reliable climate change scenarios.</p>\n </section>\n </div>","PeriodicalId":49965,"journal":{"name":"Journal of Vegetation Science","volume":"36 3","pages":""},"PeriodicalIF":2.7000,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jvs.70038","citationCount":"0","resultStr":"{\"title\":\"Revisiting a Small Mediterranean Island: How Vegetation has Changed in the Last 15 Years\",\"authors\":\"Eugenia Siccardi, Mariasole Calbi, Bruno Foggi, Lorenzo Lazzaro, Alice Misuri, Virginia Amanda Volanti, Lorella Dell'Olmo, Daniele Viciani, Michele Mugnai\",\"doi\":\"10.1111/jvs.70038\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div>\\n \\n \\n <section>\\n \\n <h3> Questions</h3>\\n \\n <p>The resurvey of historical vegetation plots has become a fundamental methodology in ecological research, as it provides a unique opportunity to estimate vegetation and environmental changes over time. Small islands are among the ecosystems where the effects of anthropogenic processes may be more detectable and less predictable. This research aimed to evaluate how the different vegetation types of a small Mediterranean island have changed over the last 15 years, both in terms of species and function and to relate these changes to the dominant land cover dynamics.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Location</h3>\\n \\n <p>Island of Pianosa, Tuscan Archipelago, Italy.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Methods</h3>\\n \\n <p>Revisiting 63 georeferenced vegetation plots in spring 2023, ensuring a close adherence to historical methodology and plot location. For each plot, vegetation changes related to processes detectable in the field (regression, dynamics, alien species or none) were assessed, and taxonomic and functional turnover was calculated. In parallel, NDVI changes were assessed on satellite images acquired during the two periods. In addition, two high-resolution orthophotos from 2007 and 2023 were used to classify land cover types into three classes: bare soil, grass and woody vegetation, and to assess changes in land cover types within a 20-m buffer around the plots.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Results</h3>\\n \\n <p>We assessed differences between vegetation types and the type of process detected for taxonomic and functional turnover, NDVI distances and land cover changes. The main drivers of taxonomic and functional turnover were the encroachment of typical shrub species into grasslands and a shift towards higher leaf area and height in rocky cliff communities, probably driven by higher levels of disturbance.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Conclusions</h3>\\n \\n <p>Our results shed light on the main drivers of change in small island contexts over a short time. 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Revisiting a Small Mediterranean Island: How Vegetation has Changed in the Last 15 Years
Questions
The resurvey of historical vegetation plots has become a fundamental methodology in ecological research, as it provides a unique opportunity to estimate vegetation and environmental changes over time. Small islands are among the ecosystems where the effects of anthropogenic processes may be more detectable and less predictable. This research aimed to evaluate how the different vegetation types of a small Mediterranean island have changed over the last 15 years, both in terms of species and function and to relate these changes to the dominant land cover dynamics.
Location
Island of Pianosa, Tuscan Archipelago, Italy.
Methods
Revisiting 63 georeferenced vegetation plots in spring 2023, ensuring a close adherence to historical methodology and plot location. For each plot, vegetation changes related to processes detectable in the field (regression, dynamics, alien species or none) were assessed, and taxonomic and functional turnover was calculated. In parallel, NDVI changes were assessed on satellite images acquired during the two periods. In addition, two high-resolution orthophotos from 2007 and 2023 were used to classify land cover types into three classes: bare soil, grass and woody vegetation, and to assess changes in land cover types within a 20-m buffer around the plots.
Results
We assessed differences between vegetation types and the type of process detected for taxonomic and functional turnover, NDVI distances and land cover changes. The main drivers of taxonomic and functional turnover were the encroachment of typical shrub species into grasslands and a shift towards higher leaf area and height in rocky cliff communities, probably driven by higher levels of disturbance.
Conclusions
Our results shed light on the main drivers of change in small island contexts over a short time. These findings could provide crucial information for the conservation of Mediterranean habitats and the adequate representation of reliable climate change scenarios.
期刊介绍：
The Journal of Vegetation Science publishes papers on all aspects of plant community ecology, with particular emphasis on papers that develop new concepts or methods, test theory, identify general patterns, or that are otherwise likely to interest a broad international readership. Papers may focus on any aspect of vegetation science, e.g. community structure (including community assembly and plant functional types), biodiversity (including species richness and composition), spatial patterns (including plant geography and landscape ecology), temporal changes (including demography, community dynamics and palaeoecology) and processes (including ecophysiology), provided the focus is on increasing our understanding of plant communities. The Journal publishes papers on the ecology of a single species only if it plays a key role in structuring plant communities. Papers that apply ecological concepts, theories and methods to the vegetation management, conservation and restoration, and papers on vegetation survey should be directed to our associate journal, Applied Vegetation Science journal.
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