Urban noise restricts, fragments, and lightens sleep in Australian magpies
Farley Connelly, Robin D Johnsson, Anne E Aulsebrook, Raoul A Mulder, Michelle L Hall, Alexei L Vyssotski, John A Lesku
Environmental Pollution | ELSEVIER SCI LTD | Published : 2020
Urban areas are inherently noisy, and this noise can disrupt biological processes as diverse as communication, migration, and reproduction. We investigated how exposure to urban noise affects sleep, a process critical to optimal biological functioning, in Australian magpies (Cracticus tibicen). Eight magpies experimentally exposed to noise in captivity for 24-h spent more time awake, and less time in non-rapid eye movement (non-REM) and REM sleep at night than under quiet conditions. Sleep was also fragmented, with more frequent interruptions by wakefulness, shorter sleep episode durations, and less intense non-REM sleep. REM sleep was particularly sensitive to urban noise. Following exposur..View full abstract
Awarded by Australian Research Council (ARC)
This project was supported by the Holsworth Wildlife Research Endowment and the Ecological Society of Australia. This study was also funded by an Australian Research Council (ARC) Discovery Project grant (DP170101003) to J.A.L.