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Timing and Weather Offer Alternative Mitigation Strategies for Lowering Bat Mortality at Wind Energy Facilities in Ontario
| Content Provider | MDPI |
|---|---|
| Author | Squires, Kelly A. Thurber, Bethany G. Zimmerling, J. Ryan Francis, Charles M. |
| Copyright Year | 2021 |
| Description | Relatively high mortality of migratory bats at wind energy facilities has prompted research to understand the underlying spatial and temporal factors, with the goal of developing more effective mitigation approaches. We examined acoustic recordings of echolocation calls at 12 sites and post-construction carcass survey data collected at 10 wind energy facilities in Ontario, Canada, to quantify the degree to which timing and regional-scale weather predict bat activity and mortality. Rain and low temperatures consistently predicted low mortality and activity of big brown bats (Eptesicus fuscus) and three species of migratory tree bats: hoary bat (Lasiurus cinereus), eastern red bat (L. borealis), and silver-haired bat (Lasionycteris noctivagans). Bat activity occurred in waves with distinct peaks through the season; regardless of seasonal timing, most activities occurred in the first half of the night. We conclude that wind energy facilities could adopt a novel and more effective curtailment strategy based on weather and seasonal and nocturnal timing that would minimize mortality risks for bats while increasing the opportunities for power generation, relative to the mitigation strategy of increasing cut-in wind speed to 5.5 m/s. |
| Starting Page | 3503 |
| e-ISSN | 20762615 |
| DOI | 10.3390/ani11123503 |
| Journal | Animals |
| Issue Number | 12 |
| Volume Number | 11 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-12-08 |
| Access Restriction | Open |
| Subject Keyword | Animals Bat Activity Eastern Red Bat Eptesicus Fuscus Hoary Bat Lasionycteris Noctivagans Lasiurus Borealis L. Cinereus Mortality Silver-haired Bat Southwestern Ontario |
| Content Type | Text |
| Resource Type | Article |
