Barber Sensory Ecology Lab
American Museum of Natural History
Investigaciones actuales

An important goal of our research program is to reveal both the costs and solutions to the extensive alteration of acoustic environments by global change. We have shown via experiments in the field and lab that anthropogenic noise alters animal behaviors, distributions, community assembly, and fitness (see our review Dominoni et al. 2020, Nature Ecology and Evolution). For example, we created a “phantom road” using an array of speakers to broadcast traffic noise across a roadless landscape, directly testing the effect of noise alone on a songbird community during autumn migration. Thirty-one percent of the bird community avoided the phantom road. For individuals that stayed despite the noise, overall body condition decreased by a full standard deviation (e.g., McClure et al. 2013, Proc B; Ware et al. 2015, PNAS).

A model of the positive changes light mitigation technology can generate for people and wildlife. We are testing the effects of several mitigation approaches (in Grand Teton, Acadia, and Great Smoky Mountains National Parks), for example: changing light spectra (red lighting mitigation depicted) and decreasing intensity. Recent data indicates that bat, moth and songbird populations decline in areas illuminated by artificial lights for several years. Further, we have shown visitor experience improves under dark skies and increased biodiversity.
