Bats in Agriculture: Ecosystem Services and Welfare

Bats provide enormous ecosystem services to agriculture through insect pest control, but agricultural practices often harm bat populations.

Key Facts

A single little brown bat can consume up to 1,000 mosquito-sized insects per hour, providing significant pest control value
Global bat pest control services are estimated to be worth $3.7 billion annually to US agriculture alone
Pesticide use in agriculture kills bats directly through poisoning and indirectly through prey reduction
Wind turbines kill an estimated 600,000 to 900,000 bats annually in the US through barotrauma and collision
Agricultural monocultures reduce structural diversity that bats require for roosting and commuting
Provision of bat boxes increases bat populations in agricultural landscapes, improving pest control services
Insectivorous bats are particularly vulnerable to pesticide accumulation through prey insect consumption

Welfare Considerations

Bat welfare in agricultural landscapes is shaped by the tension between modern agriculture's reliance on pesticides and monocultures and the ecosystem services that bat populations provide to those same systems. Individual bats experience barotrauma from wind turbines, pesticide toxicity from contaminated prey, and roost loss from habitat simplification. Population-level declines reduce the ecological benefits that healthy bat communities provide. Supporting bat populations through pesticide reduction, bat box provision, and wind turbine management that minimizes bat activity periods (particularly migration periods) simultaneously serves individual welfare and ecosystem function.

What You Can Do

Install bat boxes to provide roosting habitat in gardens and agricultural settings
Support integrated pest management approaches that reduce pesticide use and protect bat prey
Advocate for wind turbine curtailment during migration periods to reduce bat mortality
Donate to bat conservation organizations addressing population-level threats
Reduce pesticide use in gardens and support neighbors and farmers who do the same