Abstract
We conducted passive acoustic monitoring for the Hawaiian hoary bat (Lasiurus semotus) in Mahukona Navigation and Ecological Complex, Hawai‘i, a reserve recently purchased by the Hawai‘i Land Trust in 2023. We aim to establish a baseline for bat acoustic activity in the area during the beginning of the reserve’s restoration. We collected nightly recordings in a grid layout throughout the reserve from January 3–18, 2025, cycling recorders between the sites. Preliminary analysis conducted in a BirdNET model trained on mainland U.S. bats revealed higher density of bat acoustic activity in certain areas of the reserve, but work remains to be done before any conclusions can be drawn regarding overall habitat usage.
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Copyright (c) 2025 Grace Guo, Mei Rao, Keone Emeliano, Larissa Sugai