{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,16]],"date-time":"2026-04-16T08:58:39Z","timestamp":1776329919093,"version":"3.50.1"},"reference-count":104,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2023,1,30]],"date-time":"2023-01-30T00:00:00Z","timestamp":1675036800000},"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>Invasive species are known to have potential advantages over the native community and can be expressed in their leaf functional traits. Thus, leaf-level traits with spectral reflectance can provide valuable insights for distinguishing invasive trees from native trees in complex forest environments. We conducted field spectroscopy measurements in a subtropical area, where we also collected trait data for 12 functional traits of invasive (Psidium guajava and Hovenia dulcis), and native species (Psidium cattleianum and Luehea divaricata). We found that photosynthetic pigments were responsible for the greatest interspecific variability, especially in the green region of the spectrum at 550 nm, therefore contributing to detection of invasive species. In addition, according to LDA and stepwise procedures, the most informative reflectance spectra were concentrated in the visible range that is closely related to pigment absorption features. Furthermore, we aimed to understand the leaf optical properties of the target invasive species by using a combination of narrow bands and linear regression models. P. guajava showed high correlations with specific leaf area, Car\/Chl and relative water content. H. dulcis had a strong correlation with water content, specific leaf area and Chla\/Chlb. Overall, this methodology proved to be appropriate for discriminating invasive trees, although parameterization by species is necessary.<\/jats:p>","DOI":"10.3390\/rs15030791","type":"journal-article","created":{"date-parts":[[2023,1,30]],"date-time":"2023-01-30T10:19:28Z","timestamp":1675073968000},"page":"791","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Leaf-Level Field Spectroscopy to Discriminate Invasive Species (Psidium guajava L. and Hovenia dulcis Thunb.) from Native Tree Species in the Southern Brazilian Atlantic Forest"],"prefix":"10.3390","volume":"15","author":[{"given":"Caroline","family":"Mallmann","sequence":"first","affiliation":[{"name":"Department of Geoscience, Santa Maria Federal University, Santa Maria 97105-900, Brazil"},{"name":"Secretary of Environment and Infrastructure for the State of Rio Grande do Sul, Porto Alegre 86010-923, Brazil"}]},{"given":"Waterloo","family":"Pereira Filho","sequence":"additional","affiliation":[{"name":"Department of Geoscience, Santa Maria Federal University, Santa Maria 97105-900, Brazil"}]},{"given":"Jaqueline","family":"Dreyer","sequence":"additional","affiliation":[{"name":"Department of Forestry Engineering, Santa Maria Federal University, Santa Maria 97105-900, Brazil"}]},{"given":"Luciane","family":"Tabaldi","sequence":"additional","affiliation":[{"name":"Department of Biology, Santa Maria Federal University, Santa Maria 97105-900, Brazil"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5517-8821","authenticated-orcid":false,"given":"Flavia","family":"Durgante","sequence":"additional","affiliation":[{"name":"Institute of Geography and Geoecology, Karlsruhe Institute of Technology, 76131 Karlsruhe, Germany"},{"name":"Department of Botany, National Institute for Amazonian Research, Petr\u00f3polis 69011-970, Brazil"}]}],"member":"1968","published-online":{"date-parts":[[2023,1,30]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"14435","DOI":"10.1038\/ncomms14435","article-title":"No saturation in the accumulation of alien species worldwide","volume":"8","author":"Seebens","year":"2017","journal-title":"Nat. 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