SERIDA develops a remote sensing model to improve the control of fossorial water vole populations in agricultural areas of Northwestern Spain
The system combines field and satellite data to identify, with 97% accuracy, areas where the species could expand. The tool is useful for public administrations in planning early warning systems and resource management
2026-01-26
(Press-News.org)
This work, which is funded by the Government of Asturias, has been published in the journal Scientific Reports under the title Large-scale remote sensing model enables an integrated monitoring approach for high-resolution tracking of pest vole populations. The study is led by researchers from the Regional Service for Agri-Food Research and Development (SERIDA), Aitor Somoano and Ana del Cerro, in collaboration with technicians from the company Spectralgeo (Logroño), the regional government of Galicia (Xunta de Galicia), and Tragsatec.
Researcher Aitor Somoano explains that “the fossorial water vole is a rodent considered harmful, which can become a highly significant agricultural pest when its populations undergo demographic outbreaks.” According to him, voles cause severe damage to pastures and crops, generate substantial economic losses, and may pose a risk to public health, as they are capable of acting as reservoirs for certain diseases.
Thanks to this innovative approach, SERIDA researchers have succeeded in developing a predictive habitat model that identifies, with high accuracy (97%), the areas where the species is present or could potentially expand, as well as an Optimized Damage Index capable of estimating vole abundance based on the level of damage observed in vegetation, taking climatic variability into account. In addition, the model determines the most suitable times of the year to carry out monitoring of vole populations.
These tools make it possible to identify in advance those areas where there is a higher probability of a population outbreak of these voles, even without the need for continuous field sampling.
Thanks to this system, more timely and efficient management of this harmful species can be implemented, and farmers and livestock producers can be warned so that they adopt control measures before damage becomes significant. The tool can also be useful for public administrations in planning early warning systems and in resource management. In addition, this new model offers numerous advantages:
It reduces the need for field surveys, which require time, specialized personnel, and high costs.
It enables periodic monitoring of large agricultural areas through the use of satellite imagery.
It facilitates early detection of areas at risk of population outbreaks.
It helps support better-informed decisions to prioritize control resources.
It can be applied to other rodent species and to regions with similar conditions, promoting the use of remote sensing in integrated pest management.
Methodology
This study was carried out in an agricultural area of approximately 1,285 km² in northwestern Spain, in the Ancares region (Galicia), characterized by a heterogeneous landscape. In this area, between 2021 and 2024, two annual field surveys (in spring and autumn) were conducted with the aim of estimating vole populations based on signs of vole activity recorded in the selected plots. The survey covered 23,834 plots, which together comprised 8,058 hectares affected by this species. In total, 16,768 abundance estimates were carried out.
Data from the Sentinel-2 satellite were also collected, featuring fine spatial resolution (10 m) and high temporal revisit frequency, which made it possible to analyze vegetation health and to derive spectral indices related to damage caused by these voles.
Finally, a modelling phase was carried out, applying machine-learning techniques to develop predictors of both potential habitat and vegetation damage attributable to fossorial water voles.
This work was funded by Dirección Xeral de Gandaría, Agricultura e Industrias Agroalimentarias de la Xunta de Galicia; la Dirección General de Medio Natural y Planificación Rural del Principado de Asturias, AGROALNEXT program (Ministerio de Ciencia, Innovación y Universidades, Spanish Government) with funding from European Union NextGenerationEU (PRTR-C17.I1); and by GRUPIN NySA IDE/2024/000764 (PCTI 2024–2026) Plan de Ciencia, Tecnología e Innovación 2024-2026 de la Consejería de Ciencia, Industria y Empleo.
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[Press-News.org] SERIDA develops a remote sensing model to improve the control of fossorial water vole populations in agricultural areas of Northwestern Spain
The system combines field and satellite data to identify, with 97% accuracy, areas where the species could expand. The tool is useful for public administrations in planning early warning systems and resource management
