WING DESIGN AND MIGRATORY FLIGHT
In: Israel Journal of Ecology and EvolutionSearch for other papers by ULLA M. NORBERG in
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Since birds are adapted to occupy different niches and have different migrating strategies, they use different flight modes associated with particular wing designs. Long-distance migrants should have narrow wings, that is, a high aspect ratio (wingspan2/wing area) for flight endurance, short wings for time minimization, and a high wing loading (weight/wing area) for fast flight. For energy-minimization, long-distance migrants should have long wings and a low wing loading. Fast-flying species should have pointed wing tips to reduce profile power and streamlined bodies to reduce parasite power, whereas rounded wing tips enhance soaring and gliding performance in slow fliers. Mean aspect ratio for 28 long-distance migrating birds is 8.2, whereas short-distance migrants have a lower aspect ratio (mean 7.4, n = 50). The variation in relative wing loading (body mass2/3/wing area) is rather high in both groups, but, in general, relative wing loading is lower in long-distance migrants (mean 5.5) than in short-distance migrants (mean 7.3). The flight of short-distance migrants is predicted to be more expensive on average than that in long-distance migrants, which may need more stopovers to feed during their migration flights than species with higher aspect ratios. Mean aspect ratio and relative wing loading for 51 sedentary birds are 5.5 and 6.1, respectively, indicating expensive flight.
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-
Andersson M., Norberg REvolution of reversed sexual size dimorphism and role partitioning among predatory birds, with a size scaling of flight performance Biol. J. Linn. Soc 1981 15 105 130Å
-
Greenewalt C.H.Dimensional relationships for flying animals Smithsonian Misc. Coll 1962 144 1 16
-
Greenewalt C.H.The flight of birds Trans. Am. Philos. Soc 1975 65 1 67
-
Hofton A.How sails can save fuel in the air. New Sci. 20 April: 1978 146 147
-
Hummel D.1980 1 391 396The aerodynamic characteristics of slotted wing-tips in soaring birds. Proc. 7th Int. Ornithol. Congr., Vol
-
Kokshaysky N.V., Some scale dependent problems in aerial animal locomotion. Scale effects in animal locomotion Pedley T.J.Academic Press London 1977 421 435
-
Norberg ROptimal flight speed in birds when feeding young J. Anim. Ecol 1981 50 473 477Å
-
Norberg ROptimal locomotion modes of foraging birds in trees Ibis 1983 125 172 180Å
-
Norberg U.M.Morphology of the wings, legs and tail of three coniferous forest tits, the goldcrest, and the treecreeper in relation to locomotor pattern and feeding station selection Philos. Trans. R. Soc. London, Ser. B 1979 287 131 165
-
Norberg U.M., Flight, morphology and the ecological niche in some birds and bats. Vertebrate locomotion. Symp. Zool. Soc. London 48 Day M.H.1981 173 197
-
Norberg U.M.Evolutionary convergence in foraging niche and flight morphology in insectivorous aerial-hawking birds and bats Ornis Scand 1986 17 253 197
-
Norberg U.M.Vertebrate flight Springer-Verlag Berlin 1990
-
Norberg U.M., Fenton M.B.Carnivorous bats? Biol. J. Linn. Soc 1988 33 383 394
-
Norberg U.M., Norberg REcomorphology of flight and tree-trunk climbing in birds. Proc. Int. Ornithol. Congr 1988 2 2271 2282Å.1986, Vol
-
Norberg U.M., Rayner J.M.V.Ecological morphology and flight in bats (Chiroptera): wing adaptations, flight performance, foraging strategy and echolocation Philos. Trans. R. Soc. London, Ser. B 1987 316 335 427
-
Oehme H., On the aerodynamics of separated primaries in the avian wing. Scale effects in animal locomotion Pedley T.J.Academic Press London 1977 479 494
-
Pennycuick C.J.The mechanics of bird migration Ibis 1969 111 525 556
-
Pennycuick C.J.Control of gliding angle in Rüppell's griffon vulture Gyps rüppellii J. Exp. Biol 1971 55 39 46
-
Pennycuick C.J., Mechanics of flight. Avian biology 5 King J.R., Farner D.S.Academic Press London 1975 1 75
-
Pennycuick C.J.Thermal soaring compared in three dissimilar tropical bird species, Fregata magnificens, Pelecanus occidentalis Coragyps atratus J. Exp. Biol 1983 102 307 325
-
Pennycuick C.J.Bird flight performance: a practical calculation manual Oxford University Press Oxford 1989
-
Prandtl L.1923Ergebnisse der Aerodynamischen Versuchsanstalt zu Göttingen, II. Lieferung, München
-
Rayner J.M.V., Form and function in avian flight. Current ornithology. Vol Johnston R.F.Plenum Press New York 1988 5 1 66
-
Thollesson M., Norberg U.M.Moments of inertia of bat wings and body J. Exp. Biol 1991 158 19 35
-
Tucker V.A.Gliding birds: reduction of induced drag by wing tip slots between the primary feathers J. Exp. Biol 1993 180 285 310
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WING DESIGN AND MIGRATORY FLIGHT
In: Israel Journal of Ecology and EvolutionSearch for other papers by ULLA M. NORBERG in
Current site
Google Scholar
PubMed
Since birds are adapted to occupy different niches and have different migrating strategies, they use different flight modes associated with particular wing designs. Long-distance migrants should have narrow wings, that is, a high aspect ratio (wingspan2/wing area) for flight endurance, short wings for time minimization, and a high wing loading (weight/wing area) for fast flight. For energy-minimization, long-distance migrants should have long wings and a low wing loading. Fast-flying species should have pointed wing tips to reduce profile power and streamlined bodies to reduce parasite power, whereas rounded wing tips enhance soaring and gliding performance in slow fliers. Mean aspect ratio for 28 long-distance migrating birds is 8.2, whereas short-distance migrants have a lower aspect ratio (mean 7.4, n = 50). The variation in relative wing loading (body mass2/3/wing area) is rather high in both groups, but, in general, relative wing loading is lower in long-distance migrants (mean 5.5) than in short-distance migrants (mean 7.3). The flight of short-distance migrants is predicted to be more expensive on average than that in long-distance migrants, which may need more stopovers to feed during their migration flights than species with higher aspect ratios. Mean aspect ratio and relative wing loading for 51 sedentary birds are 5.5 and 6.1, respectively, indicating expensive flight.
| All Time | Past 365 days | Past 30 Days | |
|---|---|---|---|
| Abstract Views | 2247 | 334 | 27 |
| Full Text Views | 55 | 1 | 0 |
| PDF Views & Downloads | 112 | 2 | 0 |
