MCMILLAN, D.M.*; FEARNLEY, S.L; STRODE, E.P; RANK, N.E; DAHLHOFF, E.P; Santa Clara University; Sonoma State University; Santa Clara University; Sonoma State University; Santa Clara Universtiy: Survival, growth and metabolic rate depends on environmental temperature, Hsp70 expression and PGI genotype in larvae of a montane leaf beetle The willow beetle Chrysomela aeneicollis is found in thermally […]

HENRY, J.R.*; HARRISON, J.F.; Arizona State University, Tempe; Arizona State University, Tempe: Plastic and evolved responses of tracheal dimensions to varying atmospheric oxygen content in Drosophila melanogaster. Structural changes in the tracheal system during development have the potential to allow insects to compensate for varying atmospheric oxygen levels. We investigated how oxygen availability affects the […]

GIBBS, Allen G.; VANIER, Cheryl H.; Univ. of Arizona; Univ. of Arizona: Gene expression in desiccated and starved Drosophila We studied the effects of desiccation stress on gene expression patterns in Drosophila melanogaster. Because desiccation involves the removal of both food and water, we used two control treatments: flies with water but no food (starved […]

ALBERS, Melissa A; BRADLEY, Timothy J; University of California, Irvine; University of California, Irvine: Fecundity in Drosophila melanogaster populations selected for enhanced desiccation resistance We investigated the effect of dehydration and subsequent rehydration on fecundity in five populations of Drosophila melanogaster selected for enhanced desiccation resistance (D populations) and their five paired control populations (C […]

LOVE, O.P.*; WILLIAMS, T.D.; Simon Fraser University, British Columbia, Canada; Simon Fraser University, British Columbia, Canada: Corticosterone provides a link between maternal condition and sex-specific adjustment of offspring quality Sex allocation theory predicts that females in better condition are expected to invest in the more expensive sex (most often sons), while those in poor condition […]

HUANG, H.-D.; RITTSCHOF, D.; JENG, M.-S.; Duke Univ.; Duke Univ.; Academia Sinica, Taiwan: Visual Orientation of the Symbiotic Snapping Shrimp Synalpheus demani Visually cues play an important role in crustacean shelter-seeking behavior. We hypothesize that Synalpheus demani, an obligate crinoid-dwelling snapping shrimp, uses visual cues in host location. We tested shrimp response to rectangular visual […]

PEREZ, S.; WEIS, V.; Oregon State University: Production of Nitric Oxide in the symbiotic cnidarian Aiptasia pallida as a function of heat stress Stressful environmental conditions, such as elevated temperature, cause the symbiotic association between many cnidarians and the dinoflagellate Symbiodinium to become unstable resulting in the release of the symbiotic algal cells from host […]

O’GRADY, S/P*; DEARING, M/D; University of Utah; University of Utah: Isotopic insight into host-endosymbiont relationships Nitrogen isotopes have been widely used to investigate trophic pathways in ecological systems and research has shown an isotopic enrichment of 2-5� with trophic level increases. Few studies have used isotopic relationships to examine ecological systems within an animal. We […]

MCCOY, A.M.; Harvard University: Host-Symbiont Specificity in a Microalgal-Invertebrate Symbiosis One of the key issues in microalgal-invertebrate symbiosis is the mechanisms by which host-symbiont specificity is determined and maintained. This includes both the recognition of appropriate symbionts and post-ingestion regulation of symbionts. The mechanisms remain unknown for many associations in part because only a limited […]

ERWIN, Patrick M.*; THACKER, Robert W.; University of Alabama at Birmingham; University of Alabama at Birmingham: Characterization and Structure of Sponge-Associated Microbial Communities Marine sponges harbor a diverse assemblage of microbial symbionts. Molecular techniques are instrumental in the identification of sponge-associated bacteria and analysis of the stability and structure of sponge microbial communities. We constructed […]