Meeting Abstract 98-5 Wednesday, Jan. 6 14:30 Differential microRNA Expression During Tissue Dissociation and Reaggregation in Demosponge Spongosorites ROBINSON, JM; Howard University College of Medicine jeff.robinson.evo@gmail.com Demosponges share eight orthologous microRNAs (miRNAs), with none in common with Bilateria. While the biological functions of these demosponge miRNAs are unknown, bilaterian miRNAs function in the regulation of cellular processes […]
sessions: Session 98
Differential expression of calmodulin and calmodulin-like genes in larval and juvenile blue mussels exposed to osmotic stress
Meeting Abstract 98-3 Wednesday, Jan. 6 14:00 Differential expression of calmodulin and calmodulin-like genes in larval and juvenile blue mussels exposed to osmotic stress MAY, M.A.*; RAWSON, P.D.; University of Maine; University of Maine melissa.may@maine.edu Calmodulin (calcium-modulated protein, or CaM) is an important cellular signaling molecule and is integral in modulating stress responses. In some marine invertebrates, […]
Variable Limb Function Results in Similar Turning Behavior in Lizards
Meeting Abstract 98-6 Saturday, Jan. 7 14:45 – 15:00 Variable Limb Function Results in Similar Turning Behavior in Lizards. LIBBY, T*; FULL, R.J.; Univ. of California, Berkeley tlibby@berkeley.edu Periodic steady-state locomotion like flat-ground walking and running typically display high stereotypy of forces and kinematics during limit-cycle behavior. We examined variability in an unsteady maneuver in lizards, Agama […]
Spiders “limp” to achieve a more stable gait
Meeting Abstract 98-8 Saturday, Jan. 7 15:15 – 15:30 Spiders “limp” to achieve a more stable gait HSIEH, ST*; SHAMBLE, P; WILSHIN, S; HOVEY, K; SPENCE, AJ; Temple University; Harvard University; Royal Veterinary College; Temple University; Temple University sthsieh@temple.edu http://astro.temple.edu/~sthsieh/ Many invertebrates are capable of voluntarily losing limbs (autotomy) in response to antagonistic encounters. How they rapidly […]
Side-Impact Collision Obstacle Negotiation Mechanics in Sidewinding Snakes
Meeting Abstract 98-3 Saturday, Jan. 7 14:00 – 14:15 Side-Impact Collision: Obstacle Negotiation Mechanics in Sidewinding Snakes ASTLEY, H.C.*; MENDELSON, J.R.; GOLDMAN, D.I.; University of Akron; Zoo Atlanta; Georgia Institute of Technology hastley@uakron.edu http://gozips.uakron.edu/~hastley/ Snakes display several locomotor modes which allow them to overcome a wide range of terrain challenges. Sidewinding is a mode which allows snakes […]
Leg vibrations help cockroaches self-right using wings
Meeting Abstract 98-4 Saturday, Jan. 7 14:15 – 14:30 Leg vibrations help cockroaches self-right using wings OTHAYOTH, RS*; XUAN, QH; LI, C; Johns Hopkins University ratan@jhu.edu http://li.me.jhu.edu/ When flipped over, cockroaches can use their wings to push against the ground to self-right dynamically. In this process, it often takes an animal multiple failed maneuvers before it eventually […]
Dynamic traversal of large gaps and high bumps by cockroaches
Meeting Abstract 98-1 Saturday, Jan. 7 13:30 – 13:45 Dynamic traversal of large gaps and high bumps by cockroaches GART, SW*; LI, C; Johns Hopkins Univeristy swgart@jhu.edu http://li.me.jhu.edu To survive, terrestrial insects must traverse obstacles like rocks, litter, vines, and exposed roots comparable in size to or even larger than themselves. Much has been known about how […]
Does bipedalism confer an advantage to lizards sprinting over obstacles
Meeting Abstract 98-2 Saturday, Jan. 7 13:45 – 14:00 Does bipedalism confer an advantage to lizards sprinting over obstacles? SELF, JD; COLLINS, CE*; MCBRAYER, LD; Georgia Southern Univ.; Univ. of California, Riverside; Georgia Southern Univ. saxicoly@gmail.com http://www.saxicoly.wix.com/clintecollins Terrestrial animals evade predators and capture prey by running over uneven and highly variable terrain. Characterizing the mechanisms to traverse […]
Compensatory Strategies for Traversing a Drop Perturbation in a Bipedal, Sprawled Runner
Meeting Abstract 98-7 Saturday, Jan. 7 15:00 – 15:15 Compensatory Strategies for Traversing a Drop Perturbation in a Bipedal, Sprawled Runner TUCKER, EL*; FATH, MA; HSIEH, ST; Temple University, Philadelphia, PA; Temple University, Philadelphia, PA; Temple University, Philadelphia, PA liz.tucker@temple.edu Natural terrain constantly challenges locomotor stability. Bipedal parasagittal runners rely on proximo-distal control mechanisms and passive mechanical […]
Body shape affects yaw and pitch motions of insects traversing complex 3-D terrains
Meeting Abstract 98-5 Saturday, Jan. 7 14:30 – 14:45 Body shape affects yaw and pitch motions of insects traversing complex 3-D terrains HAN, Y*; LUO, Y; BI, J; LI, C; Johns Hopkins University yhan33@jhu.edu http://li.me.jhu.edu Analogous to fusiform shapes that reduce fluid-dynamic drag, terradynamically streamlined shape was recently discovered: cockroach’s ellipsoidal body shape facilitates body roll to […]
