Details
These maps represent locations of satellite-tagged seaducks after applying Douglas filter to eliminate unlikely locations and retaining only one best quality position per transmission cycle.
To extend battery life, transmitters deployed in March 2009 have been scheduled to be ON for 8 hours and go OFF for 18 hours during the first 40 cycles, and to be ON for 8 hours and go OFF for 200 hours during the following cycle, which started in late April.
Transmitters deployed in October 2009 are scheduled to transmit for 8 hours and go OFF for 72 hours before resuming transmission.
Embedded Google Maps may appear very busy due to numerous position fixes. Maps can be opened in a separate window for more convenient viewing, where it is possible to turn features on and off.
Disclaimer: the material presented on this website represents unpublished data and therefore should not be used in any form without prior consent from the coordinators of this study.
Last updated on 1 June 2010.
Satellite
We equipped 10 common eiders with implantable satellite transmitters on their wintering grounds in Fehmarn Belt in early March 2009 and 10 more birds in late October 2009. In January 2010 more tarnsmitters have been deployed on long-tailed ducks, common scoters and tufted ducks. Maps below represent tracks of these birds.
Common eiders tagged in spring 2009 have reached the limit of their battery life after sending signals for up to 11 months.
Tracks of 9 eiders tagged in March 2009, which transmissions are over
Open tracks of individual eiders, which are displayed above:
female 92404 male 92405 male 92406 male 92407
male 92408 male 92409 male 92410 male 92411 male 92412
Tracks of 3 eiders females tagged in late October 2009 (active transmitters)
Tracks of 7 eiders males tagged in late October 2009 (active transmitters)
Tracks of 7 long-tailed ducks tagged in January 2010 (active transmitters)
Tracks of 2 common scoters tagged in January 2010 (active transmitters)
Tufted duck (female) migration (active transmitter)
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