Ecomorphology and biomechanics of raptorial forelegs in praying mantises (Insecta: Mantodea)

• Applicant: Dr. Sebastian Büsse
• Subject Area: Systematics and Morphology (Zoology)
• Term: since 2024
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 531828325

Raptorial forelegs are prey capturing and grasping devices, best known among insects in praying mantises (Insecta: Mantodea). Mantodeans show strong morphological and behavioral adaptations towards the lifestyle of an ambush predator, with specific environmental influences and preferences of particular prey, resulting in distinct ecomorphological adaptations. Using a combination of micro-computed tomography, confocal laser scanning microscopy, scanning electron microscopy and morphological angle measurments for morphological assessment, as well as high-speed videography with motion tracking analysis for kinematic analysis and behavioural observations, this project aims to elucidate principles of prey capturing in Mantodea. Furthermore, mechanical experiments employing 3D-printing and force measurements as well as bio-inspired robotics will used to learn about the biomechanics behind the predatory strike and to inspire technology. Expected results will improve our knowledge about the biomechanical aspects of the prey capture process, as well as novel insights into the material composition of involved cuticular structures, possibly serving as a new source of inspiration for biomimetic approaches; for example, in robotic grasping systems.

• DFG Programme: Research Grants
• Major Instrumentation: high-speed video-camera
• Instrumentation Group: 5430 Hochgeschwindigkeits-Kameras (ab 100 Bilder/Sek)