CAO, Z; WANG, S.Y.*; MOORE, A.M.; BRELAND, V.; LOTZ, J.: The Effect of Prior Exposure on the Resistance and Viral Titer of Shrimp to Taura Syndrome Virus Taura Syndrome Virus (TSV) is a ssRNA virus in the family Picornaviridae that infects penaeid shrimp and can cause high mortality rates at aquaculture facilities. We are interested […]

ANCTIL, M.: Histamine immunoreactivity in the nervous system of the cnidarian Renilla koellikeri Histamine (HA) appears to be present in the nervous system of many animal phyla, including Plathelminths, but has not been reported yet in Cnidaria, the lowest phylum in which nervous systems exist. The recent identification in the sea pansy Renilla koellikeri of […]

GRINDSTAFF, J.L.; KETTERSON, E.D.: Effects of the maternal environment on antibody transmission to eggs and the consequences for offspring growth and immunity Neonatal vertebrates have little capacity to synthesize antibodies and are, therefore, dependent on the transmission of passive immunity from the female parent for early disease resistance. In birds, immunity is transferred to offspring […]

DUFFY, D.L.*; BALL, G.F.: Effects of Photoperiod and Testosterone on Immunity in Starlings One of the tenets of the immunocompetence handicap hypothesis (ICHH; Folstad & Karter, 1992) is that testosterone (T) is immunosuppressive. A previous report by our laboratory (Duffy et al., 2000) revealed that exogenous T reduced cell-mediated (CMI) and humoral immunity (HI) in […]

SWOR, R.*; BLAKE, J.; BARBOZA, P.: Effect of a Dietary Copper on Muskox Calf Growth and Immune Function There are three critical periods for muskox calf health and survival: gestation, the first week of life, and the transition from being a monogastric to being a ruminant. This study addresses the third time period. Preliminary data […]

NAVARA, K.J.; HILL, G.E.; MENDON�A, M.T.: Are there immunological costs to carotenoid display in songbirds? The recent discovery that carotenoids enhance immune function in mammals has led to the hypothesis that carotenoid pigmentation is an honest signal of immunocompetence in birds. In mammals, carotenoids have been found to increase B and T-lymphocyte proliferation, and also […]

LIBBY, T.; MEIJER, K.; FULL, R.J.: Partioning Preflex And Reflex Contributions Toward Cockroach Leg Stability: A Simulation Study It has been hypothesized that animals use neural reflexes as well as the intrinsic stiffness and damping of the musculo-skeletal system (preflexes) to manage perturbations during rapid locomotion. Previously, we imposed perturbations or sinusoidal oscillations in the […]

DUDEK, DM; FULL, RJ: Leg Function in Running Insects: Resilience and Impedance of Legs Linked to a Body Studies of locomotion have shown that many terrestrial runners have the dynamics of a spring-mass system. Our previous work using isolated, rigidly fixed legs has shown that the cockroach hind limb, with its vertically oriented joint axes, […]

SRYGLEY, R.B.*; THOMAS, A.L.R.: Flow Visualizations with Free-flying Butterflies Reveal a Variety of Unconventional Lift-generating Mechanisms Flying insects generate very high lift forces- typically twice as much lift per unit wing area as conventional wings achieve- and sometimes an order of magnitude more. Three hypotheses compete to explain the mechanism insects use to generate these […]

KIRKTON, S.D.*; HARRISON, J.F.: Effects of Body Size Changes on Jumping Performance in the American Locust Allometric changes in body size during development can cause dramatic ecological and physiological consequences. In the American locust (Schistocerca americana) body mass increases continually during development, while the femur mass changes discontinuously — increasing only between instars. We investigated […]