Turkey lies on one of major migratory routes between Palearctic and Afrotropical regions.Despite its importance for many species, few studies exist on bird migration over Turkey. In this study, autumn migration dynamics and stopover behaviour of Willow Warbler (Phylloscopus trochilus), a small insectivorous passerine, was documented and analyzed at
Manyas KuScenneti National Park (northwestern Turkey).
Birds were mistnetted, ringed, measured, weighed and fat-scored from mid August in 2002 and end of August in 2003 to end of October in both years. Totally 543 and 929 Willow
Warblers were ringed in 2002 and 2003 respectively.
For 2002 and 2003 respectively, fat score values (mean± / SE) are 4.63± / 0.06 and 3.84± / 0.05 and body mass values are 11.38± / 0.07 and 10.37± / 0.05 grams for birds captured the first time.Fat scores in 2003 show a bimodal distribution with peaks of T2 and T5, indicating populations or age classes with different migratory strategies.The number of retraps constituted 9.2-12.1 % of the total in 2002 and 2003. In both years,minimum stopover length ranged from 1 to 15 or 16 days with a median of 5 days. The majority of the retraps put on significant fat in both years. Retraps continued to put on
weight for up to two weeks after they arrived.
In this first ever study documenting passerine migration at Manyas KuScenneti National Park, it was revealed that such wetlands provide crucial stopover habitat for many migrant
passerines, enables them to gain necessary fat loads before crossing two ecological barriers,the Mediterranean Sea and the Sahara.
| Identifer | oai:union.ndltd.org:METU/oai:etd.lib.metu.edu.tr:http://etd.lib.metu.edu.tr/upload/3/12608371/index.pdf |
| Date | 01 May 2007 |
| Creators | Kesapli Didrickson, Ozgur |
| Contributors | Bilgin, Can |
| Publisher | METU |
| Source Sets | Middle East Technical Univ. |
| Language | English |
| Detected Language | English |
| Type | M.S. Thesis |
| Format | text/pdf |
| Rights | To liberate the content for public access |
Page generated in 0.002 seconds