Variation in body mass and fat reserves of the Sedge Warbler <i>Acrocephalus schoenobaenus</i> on autumn migration in the L'viv province (W Ukraine)

Zakala, Oksana; Shydlovskyy, Ihor; Busse, Przemysław

doi:10.2478/v10050-008-0069-z

Cited by 7 publications

(4 citation statements)

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“…The linear regression trend line of the body mass indicates the increase, decrease or remains stable during the season ( Table 5). The same was found in Cholgini for years 1999 and 2000 (Zakala et al 2004). Table 4 Comparison of the body mass of the Sedge Warblers between different years.…”

Section: Discussionsupporting

confidence: 67%

“…In two cases, the significant differences were due to the body mass variation in adults, in other five due to the first year birds and in one because of both ages. Yearly values of body mass of adults caught in Kalimok in 1999 and 2000 were much lower than at Ukrainian station Cholgini (Zakala et al 2004) in the same years (11.52 and 11.44 versus 12.73 and 12.79 g); for immatures 1999 values were the same (11.86 and 11.81 g), while in 2000 Ukrainian birds were significantly heavier (12.28 versus 11.42 g in Kalimok).…”

Section: Discussionmentioning

confidence: 74%

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Migratory state: body mass and fat level of some passerine long-distance migrants during autumn migration in north-eastern Bulgaria

Ilieva

Zehtindjiev

2005

Ring

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Body condition of 3224 migrating birds of Great Reed Warbler (Acrocephalus arundinaceus), Sedge Warbler (A. schoenobaenus), Willow Warbler (Phylloscopus trochilus), Red-backed Shrike (Lanius collurio) and Whitethroat (Sylvia communis) was studied at Kalimok Station, NE Bulgaria (41°00N 26°26E) in the autumns of 1997-2003. The mean values of the fat level and the body mass were calculated for each species and year and were compared with similar data of various parts of the Palaearctic-African Migration System. Distinct variations in the mean values of studied parameters in different years were recorded. The dynamics of the accumulated subcutaneous fat and the body mass during the autumn varied in different species and either increase or decrease of the values during a certain season were registered. Agedetermined differences in the studied characteristics were found. The timing of the passage of the first-year and adult birds can influence the dynamics of the mean fat level and the mean body mass. The lack of selective environment in NE Balkan Peninsula allows the passage of conspecific birds in various migratory states. The realisation of their migration adaptations highly depends on environmental conditions during the period of passage.

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Section: Discussionsupporting

confidence: 67%

Section: Discussionmentioning

confidence: 74%

Migratory state: body mass and fat level of some passerine long-distance migrants during autumn migration in north-eastern Bulgaria

Ilieva

Zehtindjiev

2005

Ring

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“…The dates of the fieldwork at four out of five ringing stations (Table 1), were adjusted to migration phenology of the studied species in a given area (Jakubas et al 2002, Zakala et al 2004, Jakubas & Wojczulanis-Jakubas 2010, Zehtindjiev et al 2010. Only in Mierzeja Wilana and Kuscenneti, we missed the beginning of the Acrocephalus migration period, but still its main part was covered (Akriotis 1998, Jakubas et al 2002, Koz³owska et al 2009, Erciyas et al 2010.…”

Section: Study Area and Fieldworkmentioning

confidence: 99%

Fuelling strategies differ among juvenile Sedge and Reed Warblers along the eastern European flyway during autumn migration

Stepniewska,

Ozarowska,

Busse

et al. 2018

Ornis Fenn

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In this study, we investigated fattening strategies of juvenile Sedge and Reed Warblers during their autumn migration. We analysed fat scores of birds captured at five ringing sites situated between the southern Baltic Sea coast and Asia Minor. In Eastern Europe these two species had similarly low fat reserves. Their fat load increased in the Balkans. Remarkable differences between the species were noted in Asia Minor, where fat reserves of Sedge Warblers were more than two-fold higher compared to Reed Warblers. As high as 90% of Sedge and only 30% of Reed Warblers captured in Asia Minor had the potential capability to cross the Mediterranean Sea in one non-stop flight. Moreover, two-thirds of those Sedge Warblers were able to continue their long flight without refuelling and reach the southern edge of the Sahara desert, while in Reed Warblers only 6% of individuals were potentially able to use the same strategy. The results of the study show clear differences in potential flight ranges of the studied species, revealing different fattening strategies of the Sedge and Reed Warbler in the Balkans and Asia Minor.

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“…This procedure has already been used in some papers (e.g. Busse 1976, Kêdzior 2002, Zakala et al 2004.…”

Section: Introductionmentioning

confidence: 99%

Fat reserves and body mass in some passerines migrating in autumn through the southern Baltic coast

Ścisłowska

Busse²

2005

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cis³owska M., Busse P. 2005. Fat reserves and body mass in some passerines migrating in The aim of the present paper is to serve with a huge data set on the fat and body mass of birds that have been caught during the field work of the Operation Baltic since 1983 (earlier data are still not available in a digitalised form). There are given fat score valuations of 38 species and correction factors for the body mass standardisation. Some comments on observed fat scores in species of different migratory habits are added. They should encourage students to continue the research process on a wider scale.

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Variation in body mass and fat reserves of the Sedge Warbler Acrocephalus schoenobaenus on autumn migration in the L'viv province (W Ukraine)

Abstract: Zakala O., Shydlovskyy I., Busse P. 2004. Variation in body mass and fat reserves of the Sedge Warbler Acrocephalus schoenobaenus on autumn migration in the Lviv province (W Ukraine). Ring 26, 2: 55-69.

Cited by 7 publications

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Migratory state: body mass and fat level of some passerine long-distance migrants during autumn migration in north-eastern Bulgaria

Migratory state: body mass and fat level of some passerine long-distance migrants during autumn migration in north-eastern Bulgaria

Fuelling strategies differ among juvenile Sedge and Reed Warblers along the eastern European flyway during autumn migration

Fat reserves and body mass in some passerines migrating in autumn through the southern Baltic coast

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