Autumn phenology and morphometrics in the Garden Warbler Sylvia borin at the Ottenby Bird Observatory, Sweden
(2012) In Ornis Fennica 89(4). p.233-240- Abstract
- Trapping and ringing near ecological barriers can provide useful information about the migration strategies of bird species. In this paper we analyzed ringing data of the Garden Warbler, collected within the period of 1950-2008 at the Ottenby Bird Observatory, south-eastern Sweden, and describe patterns in migration phenology, morphometrics and fuel load. A total of 4,351 individuals aged as either adults or juveniles were ringed during the period (yearly averages 7.3 adults and 83.1 juveniles) in addition to 1,514 birds of unknown age. Both age-specific and combined yearly totals did not significantly vary over the years. Median passage dates were 24 August, 30 August and 2 September for adults, juveniles and birds of unknown age,... (More)
- Trapping and ringing near ecological barriers can provide useful information about the migration strategies of bird species. In this paper we analyzed ringing data of the Garden Warbler, collected within the period of 1950-2008 at the Ottenby Bird Observatory, south-eastern Sweden, and describe patterns in migration phenology, morphometrics and fuel load. A total of 4,351 individuals aged as either adults or juveniles were ringed during the period (yearly averages 7.3 adults and 83.1 juveniles) in addition to 1,514 birds of unknown age. Both age-specific and combined yearly totals did not significantly vary over the years. Median passage dates were 24 August, 30 August and 2 September for adults, juveniles and birds of unknown age, respectively. Median passage did not change significantly over the years. Among adults, larger individuals passed the observatory earlier than smaller individuals. The average fuel load was estimated at 24.3% of Lean Body Mass (LBM), and late-migrating individuals had higher fuel deposits than early migrants. Maximum fuel load was estimated at 82.5% of LBM; such an individual may be capable of a direct flight from Ottenby region to the Mediterranean area. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3577802
- author
- Iwajomo, Soladoye B. ; Hedenström, Anders LU and Ottosson, Ulf
- organization
- publishing date
- 2012
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Ornis Fennica
- volume
- 89
- issue
- 4
- pages
- 233 - 240
- publisher
- BirdLife Finland
- external identifiers
-
- wos:000314428700001
- scopus:84877729503
- ISSN
- 0030-5685
- language
- English
- LU publication?
- yes
- id
- 159c1fb6-e080-45e1-af4d-c914f0b2ca49 (old id 3577802)
- alternative location
- http://www.birdlife.fi/ornisfennica/pdf/2012/of_89_233-240.pdf
- date added to LUP
- 2016-04-01 14:21:12
- date last changed
- 2022-03-21 23:34:10
@article{159c1fb6-e080-45e1-af4d-c914f0b2ca49,
abstract = {{Trapping and ringing near ecological barriers can provide useful information about the migration strategies of bird species. In this paper we analyzed ringing data of the Garden Warbler, collected within the period of 1950-2008 at the Ottenby Bird Observatory, south-eastern Sweden, and describe patterns in migration phenology, morphometrics and fuel load. A total of 4,351 individuals aged as either adults or juveniles were ringed during the period (yearly averages 7.3 adults and 83.1 juveniles) in addition to 1,514 birds of unknown age. Both age-specific and combined yearly totals did not significantly vary over the years. Median passage dates were 24 August, 30 August and 2 September for adults, juveniles and birds of unknown age, respectively. Median passage did not change significantly over the years. Among adults, larger individuals passed the observatory earlier than smaller individuals. The average fuel load was estimated at 24.3% of Lean Body Mass (LBM), and late-migrating individuals had higher fuel deposits than early migrants. Maximum fuel load was estimated at 82.5% of LBM; such an individual may be capable of a direct flight from Ottenby region to the Mediterranean area.}},
author = {{Iwajomo, Soladoye B. and Hedenström, Anders and Ottosson, Ulf}},
issn = {{0030-5685}},
language = {{eng}},
number = {{4}},
pages = {{233--240}},
publisher = {{BirdLife Finland}},
series = {{Ornis Fennica}},
title = {{Autumn phenology and morphometrics in the Garden Warbler Sylvia borin at the Ottenby Bird Observatory, Sweden}},
url = {{http://www.birdlife.fi/ornisfennica/pdf/2012/of_89_233-240.pdf}},
volume = {{89}},
year = {{2012}},
}