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Ecological Research

, Volume 19, Issue 6, pp 683–698 | Cite as

Network analysis of potential migration routes for Oriental White Storks (Ciconia boyciana)

  • Hiroto SHIMAZAKIEmail author
  • Masayuki TAMURA
  • Yury DARMAN
  • Vladimir ANDRONOV
  • Mikhail P. PARILOV
  • Meenakshi NAGENDRAN
  • Hiroyoshi HIGUCHI
Original Articles

From 1998 through to 2000, we satellite-tracked the movements of 13 Oriental White Storks (Ciconia boyciana) on their autumnal migration in order to identify their important stopover sites for preserving links from the Russian Far East breeding sites to the wintering sites in south-eastern China. New analytical methods of satellite tracking data were employed to derive robust information on the locations of stay sites, the number of stopovers made during migration, and the distance traveled without making stopovers. Based on the derived information, we modeled a stay site network as an abstraction of the storks’ potential migration routes from their breeding sites to wintering sites. Using network analysis techniques, we explored how the loss of stopover sites could affect the connectivity of potential migration routes. The results suggested that if the seashore stopover sites facing Bohai Bay in eastern China were lost, the storks’ wintering sites along the Yangtze River in south-eastern China would be isolated. Among the seashore stopover sites, Jiantuozhi Gley Mire (39.185°N, 118.627°E), located on the northern seashore of Bohai Bay, was considered particularly important for migrating storks, because it was used every year by the storks we tracked. If conservation needs of this critically located site fail to be addressed, the stay site network of storks can create weak links in the chain of migration and, if ‘broken’, storks will have great difficulties in completing their autumnal migration.

Key words

migration route network analysis Oriental White Stork satellite tracking stopover site 

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Copyright information

© Blackwell Publishing Ltd 2004

Authors and Affiliations

  • Hiroto SHIMAZAKI
    • 1
    Email author
  • Masayuki TAMURA
    • 2
  • Yury DARMAN
    • 3
  • Vladimir ANDRONOV
    • 4
  • Mikhail P. PARILOV
    • 4
  • Meenakshi NAGENDRAN
    • 5
  • Hiroyoshi HIGUCHI
    • 6
  1. 1.National Institute for Environmental StudiesTsukubaJapan
  2. 2.Environmental Informatics LaboratoryKyoto UniversityKyotoJapan
  3. 3.WWF Russia, Far Eastern BranchVladivostokRussia
  4. 4.Khingansky Nature ReserveAmurskayaRussia
  5. 5.Life Sciences DepartmentSanta Monica CollegeSanta MonicaU.S.A.
  6. 6.Laboratory of Biodiversity ScienceThe University of TokyoTokyoJapan

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