Spring fieldwork is over. It ended a
couple of weeks ago and now we are preparing the material for stable isotope
analysis. After ca. 20 field trips and over 400 waders captured (and a few
recaptured with a foreign ring), we gathered hundreds of samples, not only from
birds but also of the different components that compose the estuarine food web.
It will tell us interesting and important information about the migration
strategies of the birds using the Tagus estuary on route to their northern
breeding grounds.
Long but cheerful nights and days
were passed in the field, with too much mosquito bites also collected. Ask
Pedro! Less appealing were the days in the lab (joking! although it is true ;
), but that is part of the process and fundamental to have meaningful data
sets.
We hope to have preliminary results
in the next weeks. For now, we share a few images of this spring.
Enjoy!
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| The core team of Tagus estuay fieldwork |
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| Ringing by day. Dunlins and Ringed Plover. |
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| Ringing by nigth. Black-winged Stilts, Grey Plover, Little Egret and Bar-tailed Godwit. |
