Species level classification of Mediterranean sparse forests-maquis formations using Sentinel-2 imagery

Caglayan, Semiha Demirbas
Leloğlu, Uğur Murat
Ginzler, Christian
Psomas, Achilleas
Zeydanlı, Uğur Siyami
Bilgin, Cemal Can
Waser, Lars T.
Essential forest ecosystem services can be assessed by better understanding the diversity of vegetation, specifically those of Mediterranean region. A species level classification of maquis would be useful in understanding vegetation structure and dynamics, which would be an indicator of degradation or succession in the region. Although remote sensing was regularly used for classification in the region, maquis are simply represented as one to three categories based on density or height. To fill this gap, we test the capability of Sentinel-2 imagery, together with selected ancillary variables, for an accurate mapping of the dominant maquis formations. We applied Recursive Feature Selection procedure and used a Random Forest classifier. The algorithm is tested using ground truth collected from site and reached 78% and 93% overall accuracy at species level and physiognomic level, respectively. Our results suggest species level characterization of dominant maquis is possible with Sentinel-2 spatial resolution.


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© 2022 Elsevier LtdSpatial and temporal changes in some ecological characteristics (i.e. biomass, abundance, morphometrics, sex-composition, growth parameters and population dynamics) of the invasive veined rapa whelk (Rapana venosa) were studied off Sinop Bay, in the southern Black Sea. The whelk specimens were sampled from three depths (15 m, 25 m and 35 m) at monthly intervals between November 2005 and October 2007. Custom-made pots were deployed for the capture of R. venosa individuals. Monthly distribu...
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Maquis, which provides numerous ecosystem services and constitutes an integral part of the Mediterranean ecosystem, is highly heterogeneous. However, despite its importance and heterogeneity, maquis is generally mapped as a single class, while forests are mapped for management purposes. Detailed mapping of the maquis formations is necessary to understand their ecology and manage them sustainably. This study presents a method that generates alliance-level maps of the maquis ecosystems through satellite image...
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To determine the effects of different nutrient dynamics in the Levatine Basin a 1-D multi component lower trophic ecosystem model is used and the carrying capacity and regulatory mechanisms of the nutrients on upper trophic levels at three contrasting marine sites in the Northeastern Mediterranean is assessed. Offshore waters of Mersin Bay, coastal sites of Erdemli and Rhodes Gyre is chosen as they represent distinctive characteristics in terms of nutrients dynamics. Model results suggest distinct mechanism...
Citation Formats
S. D. Caglayan et al., “Species level classification of Mediterranean sparse forests-maquis formations using Sentinel-2 imagery,” GEOCARTO INTERNATIONAL, pp. 0–0, 2020, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/31827.