Many bat species have adapted to urban environments but face specific welfare challenges from roost disturbance, light pollution, and pesticide exposure.
Bats disturbed during hibernation burn fat reserves that may not be replenished before spring, causing starvation. Roost disturbance during maternity season causes mothers to abandon pups. Artificial lighting delays emergence from roosts until invertebrate activity has declined, reducing foraging efficiency. The cumulative effect of urban stressors challenges population viability for slow-reproducing species.