New publication: Scope for #waterfowl to speed up migration to a warming Arctic. #climatechange #avianmigration
https://doi.org/10.1038/s41558-025-02419-6
https://doi.org/10.1038/s41558-025-02419-6
4% doesn't sound like a lot-- except 4% short of 2,800km is quite a bit, taking heart rate as a rough indicator of endurance.
"We estimated birds’ energy expenditure through different proxies...
Heart rate varied greatly among individuals, with a clear decrease during gliding—corroborating its energy-saving function. Furthermore, we found consistent proof for decreased heart rate during in-wake flying, by up to 4.2%."
#NorthernBaldIbis
#AvianMigration
https://royalsocietypublishing.org/doi/full/10.1098/rspb.2024.1173?af=R