Data from: First records of complete annual cycles in water rails Rallus aquaticus show evidence of itinerant breeding and a complex migration system

When using this dataset, please cite the original article.

Lislevand T, Hahn S, Rislaa S, Briedis M. 2020. First records of complete annual cycles in water rails Rallus aquaticus show evidence of itinerant breeding and a complex migration system. J Avian Biol. doi:10.1111/jav.02595

Additionally, please cite the Movebank data package:

Lislevand T, Hahn S, Rislaa S, Briedis M (2020) Data from: First records of complete annual cycles in water rails Rallus aquaticus show evidence of itinerant breeding and a complex migration system. Movebank Data Repository. doi:10.5441/001/1.761jk64n
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Package Identifier doi:10.5441/001/1.761jk64n  
 
Abstract In water rails Rallus aquaticus, northern and eastern populations are migratory while southern and western populations are sedentary. Few details are known about the annual cycle of this elusive species. We studied movements and breeding in water rails from southernmost Norway where the species occurs year‐round. Colour‐ringed wintering birds occurred only occasionally at the study site in summer, and vice versa. Geolocator tracks revealed that wintering birds (n = 10) migrated eastwards in spring to breed on both sides of the Baltic Sea, whereas a single breeding bird from the study site wintered in N Italy. Ambient light records of geolocator birds further indicated that all but one incubated 2–4 clutches per season. By combining information on incubation and movement, we found evidence for itinerant breeding in three individual birds: After a first breeding attempt (one did not incubate), all moved 129–721 km to breed again. This behaviour is rarely recorded in birds and was unexpected because the water rail is described as monogamous with both parents caring for eggs and chicks. The study greatly improves our knowledge about the annual cycle and reproduction in water rails. However, more studies are warranted to evaluate the generality of our findings and causes of breeding itinerancy.
Keywords animal movement, animal tracking, avian migration, geolocator, incubation, light-level logger, migration ecology, Rallus aquaticus, water rails, wetland birds, wintering,

Movements of water rails from Norway-light-levels View File Details
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Download: Movements of water rails from Norway-light-levels.csv ( 122.9Mb )
To the extent possible under law, the authors have waived all copyright and related or neighboring rights to this data.  



Movements of water rails from Norway-tracks View File Details
Download: README.txt ( 27.27Kb )
Download: Movements of water rails from Norway-tracks.csv ( 50.55Kb )
To the extent possible under law, the authors have waived all copyright and related or neighboring rights to this data.  



Movements of water rails from Norway-reference-data View File Details
Download: README.txt ( 27.27Kb )
Download: Movements of water rails from Norway-reference-data.csv ( 4.155Kb )
To the extent possible under law, the authors have waived all copyright and related or neighboring rights to this data.  


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