RT info:eu-repo/semantics/article T1 Remote sensing colour image semantic segmentation of large herbivorous mammal trails A1 Diez Pastor, José Francisco A1 González Moya, Francisco Javier A1 Latorre Carmona, Pedro A1 Pérez-Barbería, Francisco Javier A1 Kuncheva, Ludmila I. . A1 Canepa Oneto, Antonio Jesús A1 Arnaiz González, Álvar A1 García Osorio, César K1 Semantic segmentation K1 Deep learning K1 Grazing trails K1 Herbivory K1 Biodiversity K1 Monitoring K1 Pastoreo K1 Grazing K1 Biodiversidad-Conservación K1 Biodiversity conservation K1 Teledetección K1 Remote sensing AB Detection of spatial areas where biodiversity is at risk is of paramount importance for the conservation and monitoring of ecosystems. Large terrestrial mammalian herbivores are keystone species as their activity not only has deep effects on soils, plants, and animals but also shapes landscapes, as large herbivores act as allogenic ecosystem engineers. One key landscape feature that indicates intense herbivore activity and potentially impacts biodiversity is the formation of grazing trails. Grazing trails are formed by the continuous trampling activity of large herbivores that can produce complex networks of tracks of bare soil. Here, we evaluated different algorithms based on machine learning techniques to identify grazing trails. Our goal is to automatically detect potential areas with intense herbivory activity, which might be beneficial for conservation and management plans. We have applied five semantic segmentation methods combined with fourteen encoders aimed at mapping grazing trails on aerial images. Our results indicate that in most cases the chosen methodology successfully mapped the trails, although there were a few instances where the actual trail structure was underestimated. The UNet architecture with the MambaOut encoder was the best architecture for mapping trails. The proposed approach could be applied to develop tools for mapping and monitoring temporal changes in these landscape structures to support habitat conservation and land management programmes. This is the first time, to the best of our knowledge, that competitive image segmentation results are obtained for the detection and delineation of trails of large herbivorous mammals.Footnote PB Taylor and Francis SN 0143-1161 YR 2026 FD 2026-02 LK https://hdl.handle.net/10259/11881 UL https://hdl.handle.net/10259/11881 LA eng NO This work was supported by the Asturias Biodiversity Complementary Program BIO06 (Next Generation EU/PRTR), Strategic Projects Oriented Towards Ecological and Digital Transition (TED2021-131388B-100), Spanish Knowledge Generation Projects (PID2023-146074OB-I00) funded by EU Next Generation and Spanish Research Agency, Spanish Research Council Tenured Scientist Incorporation Grants 2022 (202230I041) DS Repositorio Institucional de la Universidad de Burgos RD 02-jul-2026