Department: Comparative Biomedical Sciences
Research Centres: Structure & Motion Laboratory
Tatjana is a Postdoctoral Researcher in the Locomotion Research Group. Tatjana's research interest covers the mechanics of terrestrial locomotion as well as the mechanics and aerodynamics of animal flight.
Tatjana graduated in 2000 with a Diplom (MA) in Biology from the Saarland University in Germany. She completed her PhD in the aerodynamics of flapping flight at the Darmstadt University in 2006. Tatjana then became a postdoctoral associate at Brown University investigating the kinematics and aerodynamics of bats.
At the RVC Tatjana's research interests include bipedal locomotion in humans and birds and currently her research focuses on the hunting performance of cheetahs and other large African predators.
Usherwood, J.,Hubel, T.Y. (2012). Energetically optimal running requires torques about centre of mass. J R Soc Interface. 2012 Jan. doi:10.1098/rsif.2012.0145.
Hubel, T.Y., Hristov, N.I., Swartz, S. and Breuer, K. (2012).Changes in kinematics and aerodynamics over a range of speeds in Tadarida brasiliensis, the Brazilian free-tailed bat. J R Soc Interface. 2012 Jan 18. doi: 10.1098/?rsif.2011.0838.
Hubel, T.Y., Riskin, D., Swartz, S. and Breuer, K. (2010). Wake structure and Kinematics – the flight of the Lesser dog-faced fruit bat Cynopterus brachyotis. Journal of Experimental Biology 213: 3427-3440.
Hubel, T.Y., Tropea, C. (2010). The importance of leading edge vortices under simplified flapping flight conditions at the size scale of birds. Journal of Experimental Biology 213: 1930-1939.
Hubel, T.Y., Hristov, N., Swartz, S. and Breuer, K. (2009). Time-resolved wake structure and kinematics of bat flight. Experiments in Fluids 46, 933-943.
Hubel, T.Y., Tropea, C. (2009). Experimental investigation of a flapping wing model. Experiments in Fluids 46, 945-961.
Riskin, D. K., Bahlman, J. W., Hubel, T. Y., Ratcliffe, J. M., Kunz, T. H. and Swartz, S. M. (2009). Bats go head-under-heels: the biomechanics of landing on a ceiling. Journal of Experimental Biology 212, 945-953.
Hubel, T.Y., Tropea C. (2004). Aerodynamics and wake structure of flapping wings, Fortschritt-Berichte VDI, Reihe 15, Nr. 249, VDI-Verlag, Düsseldorf.
Hubel, T.Y., Tropea C. (2004). Wirbelbildung hinter schlagenden Tragflächen. In: Rossmann T & Tropea C, Bionik - neue Forschungsergebnisse aus Natur-, Ingenieur- und Geisteswissenschaft. Springer, Heidelberg Berlin.
Hubel, T.Y., Tropea C. (2002). Untersuchungen zur instationären Aerodynamik an einem flügelschlagenden Modell, In: Wisser, A., Nachtigall, W. (Eds.): BIONA-report 16, Akad. Wiss. Lit. Mainz, GTTB, Saarbrücken, pp. 184-188.
Hubel, T.Y., Kesel A. B., Nachtigall W. (2000). Einfluß der Hinterkantengeometrie auf die aerodynamische Performance biologischer Tragflächen. In: Wisser, A., Nachtigall, W. (Eds.): BIONA-report 14, Akad. Wiss. Lit. Mainz, GTTB, Saarbrücken, pp. 174-176.
It is well known that cheetahs are the world’s fastest sprinters, but until this study the top speed of wild cheetahs had never been measured.
Most measurements of cheetah locomotion had been made on captive animals chasing a lure in a straight line, with few studies eliciting speeds faster than racing greyhounds.
For wild cheetahs, estimates of speed have only ever been made from direct observation or film, in open habitat and during daylight hours. Even the highly cited 'cheetah top speed' comes from just three measured runs by one individual cheetah in 1965.
In this study we investigate whether that single animal really did reveal the cheetah’s top speed and discover more about the cheetah's other remarkable athletic capabilities.