Hello,
I know of a few books (Sudfeldt, Christoph, et al. Atlas Deutscher Brutvogelarten. Stiftung Vogelmonitoring Deutschland und Dachverband Deutscher Avifaunisten, 2014.; Gatter, Wulf. Vogelzug und Vogelbestände in Mitteleuropa: 30 Jahre Beobachtung des Tagzugs am Randecker Maar; mit 16 Farbtafeln. Aula-Verlag, 2000.) which depict the migration routes of european birds based on observations and ringings on a broad scale. But is digital map data available which summarizes those kind of findings into routes or even quantifies the intensity of migration events? I recently read Liechti, Felix, Jérôme Guélat, and Susanna Komenda-Zehnder. "Modelling the spatial concentrations of bird migration to assess conflicts with wind turbines." Biological conservation 162 (2013): 24-32. and was quite impressed by accuracy and coverage of the published maps (I know of the limitings).
Thank you very much
Hi,
the answer for maigration over land is simple: No.
And it could not simply be done based on the available information in Germany - the basic data are just not there.
You find a first attempt for the Southern Baltic in
http://edok01.tib.uni-hannover.de/edoks/e01fb10/624406555.pdf
You're welcome to contact me directly for more details.
Hi, you may try to contact the EURING board to get some maps of migration/ring recoveries. See also http://www.euring.org/research/migration-maps
Also, note that in Liechti et al. 2013, the maps were obtained from simulations.
Cheers,
Hi, why not take a look at www.eurobirdportal.org? For a number of species you can find model estimates showing the migration phenologies for the years 2010-2013. Those estimates are based on casual observations collated by citizen science websites like www.ornitho.de . If you would be interested in obtaining those data (which will be publicly available in due time anyway), you might want to contact Gabriel Gargallo (see contact details on EuroBirdPortal website).
Cheers
Thanks for the answers. I will have a thorough look at the publications and maps.. I was also considering citizen science data and ring recoveries as a starting point. The next step would be to relate these to topographic and geographic features. Allthough the problem of unknown detectability remains. But I have an Idea: In Species Distribution Modelling Random Pseudo Absences are generated to improve the model. Couldnt a similar approach with pseudo detections be used?
Hi Gunnar,
thinking about pseudo detections appears to be a neat idea, although I´d need to think about the implementation in more detail.
Nevertheless, you might also want to consider that at least in ornitho.de, detectability can be accounted for by using complete species observation lists to infer pseudo absences. However, to my knowledge this is not implemented in all bird observation portals joining in EuroBirdPortal. I am pretty sure that Gabriel Gargallo can tell you quite a bit more about this.
Cheers
Hi.
You can search for it in the classic book of Peter Berthold on bird migration, which contains many bibliographical sources:
BERTHOLD, P. (2001). Bird Migration: A General Survey. Oxford Ornithology Series, Oxford University Press. 253 pp.
Best regards.
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