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Local meteorological conditions reroute a migration.

A new interesting article has been published in Proc Biol Sci. 2018 Nov 7;285(1890). pii: 20181779. doi: 10.1098/rspb.2018.1779. and titled:

Local meteorological conditions reroute a migration.

Authors of this article are:

Eisaguirre JM, Booms TL, Barger CP, McIntyre CL, Lewis SB, Breed GA.

A summary of the article is shown below:

For migrating animals, realized migration routes and timing emerge from hundreds or thousands of movement decisions made along migration routes. Local weather conditions along migration routes continually influence these decisions, and even relatively small changes in en route weather may cumulatively result in major shifts in migration patterns. Here, we analysed satellite tracking data to score a discrete navigation decision by a large migratory bird as it navigated a high-latitude, 5000 m elevation mountain range to understand how those navigational decisions changed under different weather conditions. We showed that wind conditions in particular areas along the migration pathway drove a navigational decision to reroute a migration; conditions encountered predictably resulted in migrants routing either north or south of the mountain range. With abiotic conditions continuing to change globally, simple decisions, such as the one described here, might additively emerge into new, very different migration routes.

Check out the article’s website on Pubmed for more information:

This article is a good source of information and a good way to become familiar with topics such as:

animal decision-making;behavioural ecology;long-distance migration;movement ecology;navigation;soaring


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