HORISAWA, S.*; DUDLEY, R.; Univ. of California, Berkeley; Univ. of California, Berkeley: Three-Dimensional Wing Kinematics of Erratic Flight in Free-Flying Butterflies Many insects can fly erratically. In particular, it is well known that butterflies exhibit erratic, irregular, and unpredictable flight paths which might help in evading attack from aerial predators. Palatability of butterflies is correlated […]

MYHRVOLD, C.*; SANE, S.; DANIEL, T.; Univ. of Washington, Seattle; Univ. of Washington, Seattle; Univ. of Washington, Seattle: The flexible halteres of the cranefly Holorusia rubiginosa Animal locomotion requires navigation. As such, animals have evolved a variety of navigational devices, which often take the form of inertial sensors. Because they move in three dimensions, flying […]

SPONBERG, S.*; SPENCE, A.; FULL, R.J.; Univ. of CA, Berkeley; Univ. of CA, Berkeley; Univ. of CA, Berkeley: Testing Neural Control Models for Antenna-based Tactile Navigation in Cockroaches Navigation requires neural sensing of environmental features. Cockroaches use antennal tactile contact to track walls during running in low light environments. A kinematic response to wall turning […]

WARK, B.J.*; SANE, S.P.; HOROWITZ, J.; DANIEL, T.; Univ. of Washington, Seattle; Univ. of Washington, Seattle; Univ. of Washington, Seattle; Univ. of Washington, Seattle: Dynamics of hawkmoth antennae: finite element analysis of antennal mechanics. All moving systems require sensors that encode their motions. Sensing body rotation is particularly important in flight control and both visual […]

SPRAYBERRY, J. D. H.*; DANIEL, T.; Univ. Washington, Seattle; Univ. Washington, Seattle: Control of left-right steering in Manduca sexta Motor behaviors are influenced by the properties and constraints of the mechanical systems in which they operate. Hawkmoths feeding from moving flowers exhibit a visually guided tracking behavior. Given the visual stimulus of a flower oscillating […]

HYDE, Martha L.*; PARRA, Laura G.; West Texas A&M Univ., Canyon; West Texas A&M Univ., Canyon: Theoretical Aspects of Bipedal Locomotion in Kangaroo Rats: Comparison of Field and Laboratory Locomotion with Respect to Neural Control Mechanisms Infrared films (taken with a PC164C-EX Infrared camera and CML4IR Intelligent IR Lens, Supercircuits, http://www.supercircuits.com/) of bipedal locomotion in […]

UYENO, T.A.*; KIER, W.M.; Univ. of North Carolina, Chapel Hill: The muscle articulation in polychaetes and cephalopods: joints made of multifunction muscle Joints allow relative movement between rigid structural elements (termed links). There are two categories found in animals: sliding and flexible joints. Sliding joints (e.g. vertebrate articulated joints) transmit compressional forces directly between contacting […]

REVZEN, S.*; KODITSCHEK, D.E.; FULL, R.J.; Univ. of California, Berkeley; Univ. of Pennsylvania, Philadelphia; Univ. of California, Berkeley: Testing Feedforward Control Models In Rapid Running Insects Using Large Perturbations Sensory feedback dominates limb coordination in walking. By contrast, insects are capable of stable running over rough surfaces with no detectable change in motor output to […]

DUDEK, DM*; DASTOOR, S; FULL, RJ; Univ. of California, Berkeley: RAPID RECOVERY FROM AN IMPULSE PERTURBATION TO A LEG IN RUNNING INSECTS Insects frequently run across unstructured environments, such as leaf litter, with little degradation in performance. Cockroaches rapidly traverse rough terrain with obstacles up to three times their hip height with no detectable change […]

PARRA, Laura G.*; HYDE, Martha L.; West Texas A&M Univ., Canyon; West Texas A&M Univ., Canyon: Characterization of Bipedal Locomotion While Feeding in Kangaroo rats in the Natural Habitat Kangaroo rats of the species Dipodomys ordii were filmed in their natural habitat at Alibates Quarry, Texas using an infrared camera. A 100 cm x 50cm […]