food webs

Oceanic seabirds can spend weeks at a time traveling thousands of kilometers in search of food on the open ocean. A new study finds a perplexing and never-before-seen behavior in which birds intentionally follow cyclones across the north Atlantic. Researchers compared the trajectories of storms with GPS tracks of birds and examined how ocean conditions change in the wakes of cyclones. They conclude that cyclones enhance mixing of ocean waters and bring prey to the surface where they are easily accessible food sources for birds.