Lilian Jubb’s Research

SICB 2024: Seattle, WA

The following information was presented as part of a poster at the Society for Integrative and Comparative Biology (SICB) 2024 conference in Seattle, WA. It is not the most recent version of the data.

The following 3 videos showcase the Deeplabcut tracking (top two views) and the Anipose 3D rendering (bottom screen).

Stinkbug walking with all 6 legs:

Post-autotomy tracking and 3D rendering. Bug missing L1 (front left leg):

Post-autotomy tracking and 3D rendering. Bug missing R1 (front right leg):

Static Stability Model (SSM) videos

Graph representing the position of feet in stance during walking pre-autotomy. The approximated center of mass (COM) is represented by the black dot. The polygon turning red or blue in color represents the normal stance phase of a tripod gait. Purple polygons indicate a support area that is different than one of the two tripods. The COM falling within the polygon of support is indicative of higher stability. As seen, with all 6 legs, the COM stays within the polygon of support the vast majority of the time.

Graph representing the position of feet in stance during walking post-autotomy. The stinkbug is missing its front, left leg (L1). The approximated center of mass (COM) is represented by the black dot. The polygon turning red or blue in color represents the normal stance phase of a tripod gait. Purple polygons indicate a support area that is different than one of the two tripods. The COM falling within the polygon of support is indicative of higher stability. As seen, the COM is more likely to get outside of the support polygon when missing a leg than when the bug has all 6 legs. However, the non-typical support polygons indicate some compensation for the lost limb.

Animated stinkbugs

In collaboration with Brian White, we are using the tracking data to animate stinkbugs in Blender. The following video shows a stinkbug walking with all 6 legs, and then missing its front left leg (L1).