Do migratory birds save energy escaping winter?
✔️ Scientists have long surmised that birds migrate during winters to save energy: far away from the biting cold, birds would need to expend less energy to keep themselves warm.
✔️ A new study has shown that migratory lifestyle carries no added overall energy cost.
✔️ Scientists have found partially migratory Eurasian blackbirds (Turdus merula) ⬆️ migrating to warmer regions in winter didn’t save more energy compared to members of the same species that stayed behind.
✔️ To measure the birds’ heart rate and body temperature over the course of the winter, researchers used surgically implanted biologgers.
✔️ It was also found that migrating birds started saving energy for migration by lowering their heart rate and body temperature almost a month before their departure.
✔️ The research raises important questions on why birds migrate if there’s no energy benefit, and where the unaccounted energy is being used instead.
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✔️ Scientists have long surmised that birds migrate during winters to save energy: far away from the biting cold, birds would need to expend less energy to keep themselves warm.
✔️ A new study has shown that migratory lifestyle carries no added overall energy cost.
✔️ Scientists have found partially migratory Eurasian blackbirds (Turdus merula) ⬆️ migrating to warmer regions in winter didn’t save more energy compared to members of the same species that stayed behind.
✔️ To measure the birds’ heart rate and body temperature over the course of the winter, researchers used surgically implanted biologgers.
✔️ It was also found that migrating birds started saving energy for migration by lowering their heart rate and body temperature almost a month before their departure.
✔️ The research raises important questions on why birds migrate if there’s no energy benefit, and where the unaccounted energy is being used instead.
Subscribe- t.me/askmenow