scholarly journals Composition of Fuel Stores and Digestive Limitations to Fuel Deposition Rate in the Long-Distance Migratory Thrush Nightingale, Luscinia luscinia

1997 ◽  
Vol 70 (1) ◽  
pp. 125-133 ◽  
Author(s):  
Marcel Klaassen ◽  
Åke Lindström ◽  
Richtje Zijlstra
Keyword(s):  
Deposition Rate ◽  
Long Distance ◽  
Thrush Nightingale ◽  
Fuel Deposition

scholarly journals Fuelling decisions in migratory birds: geomagnetic cues override the seasonal effect

2007 ◽  
Vol 274 (1622) ◽  
pp. 2145-2151 ◽  
Author(s):  
Cecilia Kullberg ◽  
Ian Henshaw ◽  
Sven Jakobsson ◽  
Patrik Johansson ◽  
Thord Fransson
Keyword(s):  
Migratory Birds ◽  
Late Phase ◽  
Experimental Treatment ◽  
Autumn Migration ◽  
Fuel Load ◽  
Seasonal Effect ◽  
Long Distance ◽  
Wintering Area ◽  
Thrush Nightingale ◽  
Fuel Deposition

Recent evaluations of both temporal and spatial precision in bird migration have called for external cues in addition to the inherited programme defining the migratory journey in terms of direction, distance and fuelling behaviour along the route. We used juvenile European robins ( Erithacus rubecula ) to study whether geomagnetic cues affect fuel deposition in a medium-distance migrant by simulating a migratory journey from southeast Sweden to the wintering area in southern Spain. In the late phase of the onset of autumn migration, robins exposed to the magnetic treatment attained a lower fuel load than control birds exposed to the ambient magnetic field of southeast Sweden. In contrast, robins captured in the early phase of the onset of autumn migration all showed low fuel deposition irrespective of experimental treatment. These results are, as expected, the inverse of what we have found in similar studies in a long-distance migrant, the thrush nightingale ( Luscinia luscinia ), indicating that the reaction in terms of fuelling behaviour to a simulated southward migration varies depending on the relevance for the species. Furthermore, we suggest that information from the geomagnetic field act as an important external cue overriding the seasonal effect on fuelling behaviour in migratory birds.

scholarly journals Why fly the extra mile? Latitudinal trend in migratory fuel deposition rate as driver of trans‐equatorial long‐distance migration

2016 ◽  
Vol 6 (18) ◽  
pp. 6616-6624 ◽  
Author(s):  
Yaara Aharon‐Rotman ◽  
Ken Gosbell ◽  
Clive Minton ◽  
Marcel Klaassen
Keyword(s):  
Deposition Rate ◽  
Long Distance ◽  
Latitudinal Trend ◽  
Fuel Deposition

Fuel loss and flexible fuel deposition rates in a long-distance migrant

2014 ◽  
Vol 68 (9) ◽  
pp. 1465-1471 ◽  
Author(s):  
Cas Eikenaar ◽  
Thomas Klinner ◽  
Tessina de Lille ◽  
Franz Bairlein ◽  
Heiko Schmaljohann
Keyword(s):  
Long Distance ◽  
Deposition Rates ◽  
Fuel Loss ◽  
Fuel Deposition

scholarly journals Fuel load and flight ranges of blackcaps Sylvia atricapilla in northern Iberia during autumn and spring migrations

2009 ◽  
Vol 55 (6) ◽  
pp. 401-410 ◽  
Author(s):  
Juan Arizaga ◽  
Emilio Barba
Keyword(s):  
Fatty Acids ◽  
Deposition Rate ◽  
Bird Migration ◽  
Migratory Birds ◽  
Fuel Load ◽  
Sylvia Atricapilla ◽  
Selective Pressures ◽  
Migration Strategies ◽  
Fuel Accumulation ◽  
Fuel Deposition

Abstract Fuel accumulation, mainly as fatty acids, is one of the main characteristics of migratory birds. Studying to what extent each population or species manages fuel load and how it varies along routes of migration or between seasons (autumn and spring migrations) is crucial to our understanding of bird migration strategies. Our aim here was to analyse whether migratory blackcaps Sylvia atricapilla passing through northern Iberia differ in their mean fuel loads, rate of fuel accumulation and ‘potential’ flight ranges between migration seasons. Blackcaps were mist netted for 4 h-periods beginning at dawn from 16 September to 15 November 2003 - 2005, and from 1 March to 30 April 2004 - 2006 in a European Atlantic hedgerow at Loza, northern Iberia. Both fuel load and fuel deposition rate (this latter assessed with difference in body mass of within-season recaptured individuals) were higher in autumn than in spring. Possible hypotheses explaining these results could be seasonal-associated variations in food availability (likely lower during spring than during autumn), the fact that a fraction of the migrants captured in spring could breed close to the study area and different selective pressures for breeding and wintering.

Song Structure and Singing Strategies in the Genus Luscinia in Different Habitats and Geographical Areas

Behaviour ◽  
1986 ◽  
Vol 98 (1-4) ◽  
pp. 274-285 ◽  
Author(s):  
Jorma Sorjonen
Keyword(s):  
Forest Canopy ◽  
Geographical Location ◽  
Bird Community ◽  
Pair Formation ◽  
Long Distance ◽  
Northern Population ◽  
Song Structure ◽  
Northern Latitudes ◽  
Distance Communication ◽  
Thrush Nightingale

AbstractThe structure of song and song propagation of studied populations of the Finnish thrush nightingale, the Mediterranean nightingale and the bluethroat (L. svecica) are in accordance with the prediction that birds living in less open habitat and usually singing inside the forest canopy, use more whistles and modulated elements and less trilled syllables (especially fast trills) in their songs than the species in more open habitats. However, the effects of the geographical location and other species in song communities are greater than that of habitat. The birds also seem to be able to improve their long distance communication easier by change in singing behaviour than by change in song-structure. The thrush nightingale males in the northern population improved detectability of their song by singing at midnight when most other species in the bird community are silent. At the same time the males increased song length and decreased intersong pauses, which increased their total vocalizing time and improved the receivers' possibility to detect their acoustic information. This strategy presumably improves rapid pair formation, which is important for long distance migrants in the northern latitudes with short favorable season for breeding and subsequent moulting.

Sign in / Sign up

Export Citation Format

Share Document