Tracking of Caspian Terns (Hydroprogne caspia) in the Swedish Baltic Sea 2017-2020-reference-data

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Date
2022-08-11
DOI
https://doi.org/10.5441/001/1.hg1v55ct/2
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Citation
Åkesson S, Lötberg U, Rueda-Uribe C. 2022. Tracking of Caspian Terns (Hydroprogne caspia) in the Swedish Baltic Sea 2017-2020-reference-data. Movebank Data Repository. https://doi.org/10.5441/001/1.hg1v55ct/2
Abstract
The conservation of migratory species poses significant challenges that may be countered by detailed knowledge about the sites used by migrants throughout the annual cycle. We present the first GPS-tracking data on the migration of declining Caspian terns Hydroprogne caspia breeding in the Baltic Sea. For 39 Caspian terns from colonies along a latitudinal gradient from 57 to 65°N, we identified key migratory routes, stopovers and wintering areas. In autumn these seabirds migrated using coastal and freshwater stopovers along six routes to reach their wintering areas across the Sahel, the Nile River Basin and the southern Iberian Peninsula. In spring, adults returned to the breeding grounds in the Baltic using a time optimizing strategy by reducing time at stopover by 78%, whereas most subadults remained sedentary and some performed only partial return migrations. Of the stopover sites used in both seasons, 58% are protected and have a reported management plan. Conservation strategies in wintering areas, stopover sites that are not protected or had not been previously recognized, and the inclusion of the species in important migratory flyways across Europe and Africa will be important to prevent further population declines of a species that depends on aquatic habitats.
Keywords
animal movement,animal tracking,avian migration,Caspian tern,GSM telemetry,Hydroprogne caspia,protected areas,seabirds
Taxa
Sensors
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URI
https://datarepository.movebank.org/handle/10255/move.1334
BibTex
@misc{001/1_hg1v55ct/2,
  title = {Tracking of Caspian Terns (Hydroprogne caspia) in the Swedish Baltic Sea 2017-2020-reference-data},
  author = {Åkesson, S and Lötberg, U and Rueda-Uribe, C},
  year = {2022},
  URL = {http://dx.doi.org/10.5441/001/1.hg1v55ct/2},
  doi = {doi:10.5441/001/1.hg1v55ct/2},
  publisher = {Movebank data repository}
}
RIS
TY  - DATA
ID  - doi:10.5441/001/1.hg1v55ct/2
T1  - Tracking of Caspian Terns (Hydroprogne caspia) in the Swedish Baltic Sea 2017-2020-reference-data
AU  - Åkesson, Susanne
AU  - Lötberg, Ulrik
AU  - Rueda-Uribe, Cristina
Y1  - 2022/08/11
KW  - animal movement
KW  - animal tracking
KW  - avian migration
KW  - Caspian tern
KW  - GSM telemetry
KW  - Hydroprogne caspia
KW  - protected areas
KW  - seabirds
KW  - Hydroprogne caspia
PB  - Movebank data repository
UR  - http://dx.doi.org/10.5441/001/1.hg1v55ct/2
DO  - doi:10.5441/001/1.hg1v55ct/2
ER  -
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