Published December 23, 2025 | Version v1

Wetland classification and revitalisation monitoring by using drone data

  • 1. Slovak Academy of Sciences, Bratislava, Slovakia|Slovak University of Technology in Bratislava, Bratislava, Slovakia|Algoritmy:SK s.r.o., Bratislava, Slovakia
  • 2. Slovak Academy of Sciences, Bratislava, Slovakia
  • 3. BROZ – Conservation Association, Bratislava, Slovakia
  • 4. Algoritmy:SK s.r.o., Bratislava, Slovakia|Slovak University of Technology in Bratislava, Bratislava, Slovakia
  • 5. Slovak University of Technology in Bratislava, Bratislava, Slovakia|Algoritmy:SK s.r.o., Bratislava, Slovakia

Description

Wetlands are essential ecosystems increasingly threatened by human activities and climate change. This study presents a method for classifying and monitoring wetland habitats in the Čiližská Radvaň protected area (Slovak Republic) using RGB drone imagery and the Natural Numerical Network (NatNet), a mathematically based supervised deep learning approach. The primary aim was to evaluate the effectiveness of NatNet in identifying target habitat types and to assess the impact of ongoing revitalisation efforts. Habitat types were classified using RGB drone imagery and ground-truth training polygons that represented the dominant vegetation communities in Čiližská Radvaň wetland. The NatNet achieved the training classification success rate exceeding 97%, allowing the creation of relevancy maps successfully identifying spatial habitat distribution. Relevancy maps verified in the field reached classification accuracy of 0.88 and F1 score of 0.90 across all habitats together. Results showed observable shifts in habitat extent and structure after one year of restoration, confirming the suitability of the method for detecting ecological changes in wetland environments.

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References

  • Baattrup‐Pedersen A, Jensen KMB, Thodsen H, Andersen HE, Andersen PM, DOTS , Kronvang B (2013) Effects of stream flooding on the distribution and diversity of groundwater‐dependent vegetation in riparian areas. Freshwater Biology 58: 1–827. https://doi.org/10.1111/fwb.12088
  • Bhatnagar S, Gill L, Regan S, Waldren S, Ghosh B (2021) A nested drone-satellite approach to monitoring the ecological conditions of wetlands. ISPRS Journal of Photogrammetry and Remote Sensing 174: 151–165. https://doi.org/10.1016/j.isprsjprs.2021.01.012
  • Brinson MM (1993) A Hydrogeomorphic Classification for Wetlands. Wetlands Research Program Technical Report No. WRP-DE-4.
  • Davidson NC, Prentice RC, Milton GR, Finlayson CM (2014) The Wetland Book: II: Distribution, Description, and Conservation. Springer Dordrecht. https://link.springer.com/book/10.1007/978-94-007-6173-5 [July 10, 2025]
  • de Simone L, Fanfarillo E, Fiaschi T, Maccherini S, Bonari G, Angiolini C (2025) Riparian structural vegetation types exhibit differential responses to local community drivers. Hydrobiologia 852: 2971–2991. https://doi.org/10.1007/s10750-025-05809-1
  • Dronova I, Chippie K, Zack D, Maggi K (2021) A Review of Unoccupied Aerial Vehicle Use in Wetland Applications: Emerging Opportunities in Approach, Technology, and Data. Drones 5(2): 45. https://doi.org/10.3390/drones5020045
  • Hood WG, Naiman RJ (2000) Vulnerability of riparian zones to invasion by exotic vascular plants. Plant Ecology 148: 105–114. https://doi.org/10.1023/A:1009800327334
  • Jussila T, Heikkinen RK, Anttila S, Aapala K, Kervinen M, DOTS , Vihervaara P (2024) Quantifying wetness variability in aapa mires with Sentinel‐2: towards improved monitoring of an EU priority habitat. Remote Sensing in Ecology and Conservation 10: 172–187. https://doi.org/10.1002/rse2.363
  • Lefebvre G, Davranche A, Willm L, Campagna J, Redmond L, DOTS , Poulin B (2019) Introducing WIW for Detecting the Presence of Water in Wetlands with Landsat and Sentinel Satellites. Remote Sensing 11: 2210. https://doi.org/10.3390/rs11192210
  • Maskell LC, Bullock JM, Smart SM, Thompson K, Hulme PE (2006) The Distribution and Habitat Associations of Non-Native Plant Species in Urban Riparian Habitats. Journal of Vegetation Science 17: 499–508. https://doi.org/10.1111/j.1654-1103.2006.tb02471.x
  • Medvecká J, Jarolímek I, Senko D, Svitok M (2014) Fifty years of plant invasion dynamics in Slovakia along a 2,500 m altitudinal gradient. Biological Invasions 16: 1627–1638. https://doi.org/10.1007/s10530-013-0596-7
  • Mikula K, Šibíková M, Ambroz M, Kollár M, Ožvat AA, DOTS , Šibík J (2021) NaturaSat—A Software Tool for Identification, Monitoring and Evaluation of Habitats by Remote Sensing Techniques. Remote Sensing 13: 3381. https://doi.org/10.3390/rs13173381
  • Mikula K, Kollár M, Ožvat AA, Šibíková M, Čahojová L (2023a) Natural Numerical Networks on Directed Graphs in Satellite Image Classification. In: Calatroni L, Donatelli M, Morigi S, Prato M, Santacesaria M (Eds) Scale Space and Variational Methods in Computer Vision. Springer International Publishing, Cham, 339–351. https://doi.org/10.1007/978-3-031-31975-4_26
  • Mikula K, Kollár M, Ožvat AA, Ambroz M, Čahojová L, DOTS , Šibíková M (2023b) Natural numerical networks for Natura 2000 habitats classification by satellite images. Applied Mathematical Modelling 116: 209–235. https://doi.org/10.1016/j.apm.2022.11.021
  • Mikulová K, Jarolímek I, Šibík J, Bacigál T, Šibíková M (2020) Long-Term Changes of Softwood Floodplain Forests—Did the Disappearance of Wet Vegetation Accelerate the Invasion Process? Forests 11: 1218. https://doi.org/10.3390/f11111218
  • Ministry of the Environment of the Slovak Republic (2024) The historical map of the Second Military Surveys. Spatial Data Registry. https://rpi.gov.sk/en [July 14, 2025]
  • Mitsch WJ, Gosselink JG (2015) Wetlands. 5th edn. John Wiley & Sons.
  • Oťaheľová H (2001) Phragmition. In: Valachovič M. (ed.) Vegetation of Slovakia 3. Wetland Vegetation. Veda, Bratislava, 63–86.
  • Ožvat AA, Kollár M, Šibíková M, Mikula K (2024) Graph-Laplacian in biodiversity modelling by Natural Numerical Networks. In: Proceedings of the Conference Algoritmy., 204--213. http://www.iam.fmph.uniba.sk/amuc/ojs/index.php/algoritmy/article/view/2174
  • Petrášová-Šibíková M, Matečný I, Uherčíková E, Pišút P, Kubalová S, DOTS , Medvecká J (2017) Effect of the Gabčíkovo Waterworks (Slovakia) on riparian floodplain forest ecosystems in the Danube inland delta: vegetation dynamics and trends. Biologia 72: 722–734. https://doi.org/10.1515/biolog-2017-0082
  • Pyšek P, Richardson DM (2010) Invasive Species, Environmental Change and Management, and Health. Annual Review of Environment and Resources 35: 25–55. https://doi.org/10.1146/annurev-environ-033009-095548
  • Pyšek P, Bacher S, Chytrý M, Jarošík V, Wild J, DOTS , Hulme PE (2010) Contrasting patterns in the invasions of European terrestrial and freshwater habitats by alien plants, insects and vertebrates. Global Ecology and Biogeography 19: 317–331. https://doi.org/10.1111/j.1466-8238.2009.00514.x
  • Rood SB, Samuelson GM, Braatne JH, Gourley CR, Hughes FM, Mahoney JM (2005) Managing river flows to restore floodplain forests. Frontiers in Ecology and the Environment 3: 193–201. https://doi.org/10.1890/1540-9295(2005)003[0193:MRFTRF]2.0.CO;2
  • Rumlerová Z, Vilà M, Pergl J, Nentwig W, Pyšek P (2016) Scoring environmental and socioeconomic impacts of alien plants invasive in Europe. Biological Invasions 18: 3697–3711. https://doi.org/10.1007/s10530-016-1259-2
  • Ruwaimana M, Satyanarayana B, Otero V, Muslim AM, A MS, DOTS , Dahdouh-Guebas F (2018) The advantages of using drones over space-borne imagery in the mapping of mangrove forests. PLoS ONE 13: e0200288. https://doi.org/10.1371/journal.pone.0200288
  • Slezák M, Douda J, Šibíková M, Jarolímek I, Senko D, Hrivnák R (2022) Topographic indices predict the diversity of Red List and non-native plant species in human-altered riparian ecosystems. Ecological Indicators 139: 108949. https://doi.org/10.1016/j.ecolind.2022.108949
  • The Geodesy, Cartography and Cadastre Authority of the Slovak Republic (2025) Orthophotomosaic of the Slovak Republic. ZB GIS. https://www.skgeodesy.sk/gku/produkty-sluzby/na-stiahnutie/zbgis.html#ortofoto [December 3, 2025]
  • Ventura D, Andrea B, Maria FG, Andrea B, Giandomenico A (2018) Mapping and Classification of Ecologically Sensitive Marine Habitats Using Unmanned Aerial Vehicle (UAV) Imagery and Object-Based Image Analysis (OBIA). Remote Sensing 10(9): 1331. https://doi.org/10.3390/rs10091331
  • Walter J, Essl F, Englisch T, Kiehn M (2005) Neophytes in Austria: Habitat preferences and ecological effects. Neobiota 6: 13–25.
  • Xu X, Chen M, Yang G, Jiang B, Zhang J (2020) Wetland ecosystem services research: A critical review. Global Ecology and Conservation 22: e01027. https://doi.org/10.1016/j.gecco.2020.e01027
  • Yang R, Chen Y, Qiu Y, Lu K, Wang X, DOTS , Liu S (2023) Assessing the Landscape Ecological Health (LEH) of Wetlands: Research Content and Evaluation Methods (2000–2022). Water 15: 2410. https://doi.org/10.3390/w15132410
  • Zedler JB, Callaway JC (1999) Tracking Wetland Restoration: Do Mitigation Sites Follow Desired Trajectories? Restoration Ecology 7: 69–73. https://doi.org/10.1046/j.1526-100x.1999.07108.x