@Selasphorus1 66 dB is about the same as normal human speech. I think that's pretty quiet if you are trying to broadcast you have been injured. I'm most familiar in ultrasound range with bat calls that are > 100 dB . see our work on costs of echolocati
@ScienceMagazine In 1991 based on the energy costs of echolocation when stationary and in flight I predicted such a terrestrial echolocator would be extremely unlikely to evolve. Seems I was wrong. Would love to know the costs of its echolocation pulses.
@Seiurus @BourbonBat @BatTed_1000 @YovelBatLab People commonly bring this up. Surprisingly, echolocation usually has little to no energetic cost for bats in flight, because they couple their wingbeats with their respiration and echolocation https://t.co/D
@MitoPsychoBio @CareauVincent @HermanPontzer @MPStOngePhD We did an intervention study in bats 30 years ago and the compensation for flight costs by subsequent reductions in resting metabolic rate was 100% (see link below). Seems likely that it varies enor
@MatthewJDalby not really a new idea...when we forced bats to fly, afterwards they suppressed their resting metabolism to compensate for the flight cost (published 1991) https://t.co/BS9NKMiAHS