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Solar fields in farmlands, their impact on bat presence and activity

Tavernier, C.; Nuijten, R.; Buij, R.; van Langevelde, F.

2025-10-15 ecology
10.1101/2025.10.15.682681 bioRxiv
Show abstract

Bat populations are facing numerous challenges due to human activities, and the development of solar energy in agricultural landscapes may add to these issues. Effects of solar fields on bat populations are still poorly explored. In this study, we compared bat activity in six solar fields that each had two grassland controls (agricultural grassland and natural meadows). Using passive bat detectors, bat call passes were recorded along the edges of these plots, where the highest bat species diversity and activity were expected. The effects of landscape composition and configuration on the diversity, presence, and activity of different bat species were evaluated for each plot type at yearly, seasonal, and monthly scales. All seven bat species studied were less active in the solar fields compared to the two grassland controls. Specifically, both the number of nights that bats were present and the activity of bats were reduced in solar fields. This study shows that present solar fields have a negative impact on bat activity, which could have population effects as the number of solar fields in the agricultural landscape keeps increasing.

Published in PLOS ONE (predicted rank #1) · training set

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