We performed a Before-After Control-Impact analysis (BACI) to assess the efficiency of a bat overpass.
•An acoustic flight path reconstruction approach was used to quantify bat crossings.
•We detected a significant increase of bat crossings between the two periods at the treatment site.
•An overpass correctly placed could efficiently restore bat habitat connectivity.
https://doi.org/10.1016/j.ecoleng.2019.02.011
via @NaturaliaEnv