Christoffer Johansson Westheim, Ph.D.|
How does the aerodynamic properties of wings and bodies relate to the morphology of flying vertebrates? To answer this question I explore vertebrate flight from the multi-disciplinary approach of functional morphology. By studying the aerodynamics of animal flight in relation to the morphology of the wings, tail and body, we aim to understand some of the selection forces acting on the animals and hence the adaptations to flight.
I apply modern methods, such as 3D kinematic analysis of the wing motions from high-speed videos and 3D (stereo) Digital Particle Image Velocimetry of the flow around the animals to study the interaction between morphology and aerodynamics in live, free flying animals, as well as on prepared wings and models.
I have a general interest in propulsion through fluids and have previously work with propulsive mechanisms in swimming birds and frogs.
L. C. Johansson, M. Wolf, and A. Hedenström, (2010). A quantitative comparison of bird and bat wakes. Proc. R. Soc. Interface. 7, 61-66
L. C. Johansson and A. Hedenström, (2009). The vortex wake of blackcaps (Sylvia atricapilla, L.) measured using high-speed DPIV. J. Exp. Biol. 212, 3365-3376
L. C. Johansson, M. Wolf, R. Von Busse, Y. Winter and G. R. Spedding, A. Hedenström (2008). The near and far wake of Pallas’ long tongued bat (Glossophaga soricina). J. Exp. Biol. 211: 2909-2918
F. T. Muijres, L. C. Johansson, R. Barfield, M. Wolf, G. R. Spedding and A. Hedenström (2008). Leading edge vortex improves lift in slow flying bats. Science 319: 1250-1253.
A. Hedenström, L. C. Johansson, M. Wolf, R. Von Busse, Y. Winter and G. R. Spedding (2007). Bat flight generates complex aerodynamic tracks. Science 316: 793-914.
L.C. Johansson and G.V. Lauder (2004). Hydrodynamics of surface swimming in Leopard frogs (Rana pipiens). J. Exp. Biol. 207: 3945-3958.
L.C. Johansson and R.Å. Norberg (2003). Delta-wing function of webbed feet gives hydrodynamic lift for swimming propulsion in birds. Nature 423: 65-68.
L.C. Johansson and U.M. Lindhe Norberg (2001). Lift-based paddling in diving grebe. J. Exp. Biol. 204: 1687-1696.
L.C. Johansson and U.M. Lindhe Norberg (2000). Asymmetric toes aid underwater swimming. Nature 407: 582-583.
2004-2008 Assistant Professor, Dept. of Ecology, Lund University, Sweden.
2003. Post doc fellow, Dept. of Organismic and Evolutionary Biology, Harvard University, USA.
1997-2002. PhD-student, Dept. of Zoology, Göteborg University, Sweden.
Ecology, Ecology Building, 223 62 Lund , Sweden
Phone: +46 (0)46 2224955,
Fax: +46 (0)46 2224716