BANDYOPADHYAY, P.R.: Maneuvering Hydrodynamics of Fish and Small Underwater Vehicles The understanding of fish maneuvering and its application to underwater rigid bodies are considered. The goal is to gain insight into stealth. The recent progress made in NUWC is reviewed. Fish morphology suggests that control fins for good maneuverability have unique scalar relationships irrespective of […]

Dial, K.P.; Warrick, D.R.*; Bundle, M.W.: Avian Maneuverability and Stability: Blurred Bodies, Clear Heads Popular models of avian maneuverability based on steady-state assumptions and parameters such as wing loading fail to describe the full ecological and evolutionary import of maneuvering performance, particularly during low speed, flapping flight. Previous studies revealed that in this key flight […]

RAYNER, J. M. V. *; MAYBURY, W. J.; COULDRICK, L. B.: Aerodynamic control by the avian tail The bird tail has been credited as a means of controlling stability and manoeuvrability in flight and as a supplementary lifting organ, but others have emphasized its role in sexual selection and display. Theoretical models of tail aerodynamics […]

HIRSCH, A.M.: What are the Conserved Elements in Symbiotic Associations between Plants and Microbes? The nitrogen-fixing symbiosis between Rhizobiaceae and legumes is one of the best-studied interactions established between prokaryotes and eukaryotes. Dinitrogen is fixed into ammonia by rhizobia and made available to theplant in exchange for carbon. The plant also develops root nodules that […]

Esch, G.; Barger, M.; Fellis, J.: Transmission of Parasitic Helminths: Style, Elegance, Complexity Traditionall, the field of parasitology has dealt with eukaryotic animals, to the exclusion of viruses, bacteria, fungi, etc., which is the way we will approach our presentation. Our focus will be on certain ecological aspects of the life cycles and life-history strategies […]

KARR, T.L.: The microbe that roared: Wolbachia rescue of a lethal Drosophila mutation Wolbachia is an intracellular microbe harbored by a wide variety of arthropods including Drosophila. By unknown mechanisms, Wolbachia alters host reproductive biology usually to increase its representation within a population. In Drosophila, Wolbachia is closely associated with gametic incompatibility and has undergone […]

SAFFO, M.B.: Symbiosis: a Complex and Delicate Balance Symbiotic associations are intimate associations among two or more species. Such interspecific intimacy can have diverse evolutionary outcomes, ranging from antagonistic interactions (parasitisms and pathogenic associations) to mutualistic ones. Even when well understood (and many are not), the dynamics of many symbiotic associations resist simple definition. Many […]

BREZNAK, J.A.: Phylogenetic Diversity and Physiology of Termite Gut Spirochetes Spirochetes are major members of the termite gut microbiota, accounting for up to 50% of all the prokaryotes present. However, our understanding of them has been meager, as none had ever been isolated in pure culture since first being observed in termite guts over a […]

Mackie, R.I.: Mutualistic Fermentative Digestion in the Gastrointestinal Tract:Diversity and Evolution Animals of a wide range of orders or classes have a portion of their digestive system adapted to accommodate a fermentation, which assists in digestion as well as providing a varietyof other benefits. Because of the refractory nature of the plant cell wall and […]

Werren, J.H.: Evolution and Consequences of Wolbachia Symbioses in Invertebrates Wolbachia are a widespread group of bacteria that commonly found in insects, isopods, arachnids and nematodes. These cytoplasmically inherited bacteria cause a number of alterations in host reproduction, including induction of sperm-egg incompatibility, parthenogenesis, feminization of geneetic males, and male-killing. These alterations enhance transmission of […]