New papers on animal migration and barometer logging
In September Current Biology published a Special Issue on "Migration and Navigation” in which CAnMove Thomas Alerstam and Johan Bäckman contributed with an overview: ”Ecology of Animal Migration”.
Together with a number of colleagues from University of Copenhagen and CAnMove, Sissel Sjöberg recently published a paper in Journal of Avian Biology on barometer logging. The study showed how activity data loggers with barometric and temperature sensors could be used to record both ﬂight altitudes and ground elevations during stationary periods of migratory songbirds. One individual of red-backed shrike and one great reed warbler were tracked along their autumn migration from Europe to Africa, revealing interesting details on their migratory behaviour. The authors also discuss how barometric
data could be used to investigate birds’ responses to changes in air pressure as a cue for departures on migratory ﬂights, concluding that this new technique "will open up new avenues for research and importantly advance our understanding on howsmall birds behave during migratory ﬂights”.