{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,13]],"date-time":"2026-02-13T20:45:20Z","timestamp":1771015520500,"version":"3.50.1"},"reference-count":98,"publisher":"MDPI AG","issue":"10","license":[{"start":{"date-parts":[[2021,5,15]],"date-time":"2021-05-15T00:00:00Z","timestamp":1621036800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>Combining field collected and remotely sensed (RS) data represents one of the most promising approaches for an extensive and up-to-date ecosystem assessment. We investigated the potential of the so called spectral variability hypothesis (SVH) in linking field-collected and remote-sensed data in Mediterranean coastal dunes and explored if spectral diversity provides reliable information to monitor floristic diversity, as well as the consistency of such information in altered ecosystems due to plant invasions. We analyzed alpha diversity and beta diversity, integrating floristic field and Remote-Sensing PlanetScope data in the Tyrrhenian coast (Central Italy). We explored the relationship among alpha field diversity (species richness, Shannon index, inverse Simpson index) and spectral variability (distance from the spectral centroid index) through linear regressions. For beta diversity, we implemented a distance decay model (DDM) relating field pairwise (Jaccard similarities index, Bray\u2013Curtis similarities index) and spectral pairwise (Euclidean distance) measures. We observed a positive relationship between alpha diversity and spectral heterogeneity with richness reporting the higher R score. As for DDM, we found a significant relationship between Bray\u2013Curtis floristic similarity and Euclidean spectral distance. We provided a first assessment of the relationship between floristic and spectral RS diversity in Mediterranean coastal dune habitats (i.e., natural or invaded). SVH provided evidence about the potential of RS for estimating diversity in complex and dynamic landscapes.<\/jats:p>","DOI":"10.3390\/rs13101928","type":"journal-article","created":{"date-parts":[[2021,5,17]],"date-time":"2021-05-17T02:31:34Z","timestamp":1621218694000},"page":"1928","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":28,"title":["Measuring Alpha and Beta Diversity by Field and Remote-Sensing Data: A Challenge for Coastal Dunes Biodiversity Monitoring"],"prefix":"10.3390","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5661-4683","authenticated-orcid":false,"given":"Flavio","family":"Marzialetti","sequence":"first","affiliation":[{"name":"Envix-Lab, Departement of Biosciences and Territory, Molise University, Contrada Fonte Lappone, 86090 Pesche, Italy"}]},{"given":"Silvia","family":"Cascone","sequence":"additional","affiliation":[{"name":"Department of Sciences, Roma Tre University, Viale G. Marconi 446, 00146 Rome, Italy"}]},{"given":"Ludovico","family":"Frate","sequence":"additional","affiliation":[{"name":"Envix-Lab, Departement of Biosciences and Territory, Molise University, Contrada Fonte Lappone, 86090 Pesche, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8898-7046","authenticated-orcid":false,"given":"Mirko","family":"Di Febbraro","sequence":"additional","affiliation":[{"name":"Envix-Lab, Departement of Biosciences and Territory, Molise University, Contrada Fonte Lappone, 86090 Pesche, Italy"}]},{"given":"Alicia Teresa Rosario","family":"Acosta","sequence":"additional","affiliation":[{"name":"Department of Sciences, Roma Tre University, Viale G. Marconi 446, 00146 Rome, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5753-890X","authenticated-orcid":false,"given":"Maria Laura","family":"Carranza","sequence":"additional","affiliation":[{"name":"Envix-Lab, Departement of Biosciences and Territory, Molise University, Contrada Fonte Lappone, 86090 Pesche, Italy"}]}],"member":"1968","published-online":{"date-parts":[[2021,5,15]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"e1400253","DOI":"10.1126\/sciadv.1400253","article-title":"Accelerated modern human\u2013induced species losses: Entering the sixth mass extinction","volume":"1","author":"Ceballos","year":"2015","journal-title":"Sci. Adv."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/j.cosust.2014.11.002","article-title":"The IPBES conceptual framework\u2014connecting nature and people","volume":"14","author":"Demissew","year":"2015","journal-title":"Curr. Opin. Environ. 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