RAFF, R. A.; Indiana Univ.: �From pattern to process: learning mechanisms of evolution from comparative developmental biology� We use several strategies to study radical evolutionary transformation in developmental modes of these closely related species Australian sea urchin species, Heliocidaris erythrogramma and H. tuberculata. Our approaches include the production of cross species hybrids between these two […]

SANDER, K.; SCHMIDT-OTT, U.; Albert-Ludwigs-Universität, Freiburg, Germany; Max Planck Institute for Biophysical Chemistry, Göttingen, Germany: Evo-Devo Studies in Insects – Roots and Fruits TBA

SANTINI, F.; University of Toronto: The importance of highly incomplete fossil taxa in reconstructing phylogenetic relationships for various clades of acanthomorph fishes (Zeiformes, Caproiformes and Tetraodontiformes: Teleostei: Pisces) The use of fossils in phylogenetics has traditionally been a contentious issue. Fossils usually are incomplete, and their use commonly leads to an increase in the number […]

YBAZETA, Gustavo; BAKER, Allan J.; Univ. of Toronto – Dept. of Zoology. ROM – CBCB; Univ. of Toronto – Dept. of Zoology. ROM – CBCB: Molecular biogeography of galaxiid fishes deduced using a Bayesian approach and a semi-parametric molecular clock The galaxids are a group of freshwater fish with a Gondwanan geographical distribution. This distribution […]

BARRIGA-SOSA, Irene D. L. A.; Universidad Autonoma Metropolitana-Iztapalapa: Genetic variability of the white fish Chirostoma (Pisces: Atherinopsidae) as revealed by mtDNA genes. The white fish species “Chirostoma estor, C. humboldtianum, C. lucius, C. promelas” and “C. sphyraena” are of great economical, ichtyological and ecological relevance to the local populations of Patzcuaro and Chapala lakes, M�xico. […]

ENG, E.W.*; FILOSA, M.F.; AMEMIYA, Y.; COCHRAN, P.; YOUSON, J.H.; Univ. of Toronto at Scarborough, Toronto, Ontario; as Author 1; as Author 1; Saint Mary’s University, Winona, Minnesota; as Author 1: Variation in Lamprey Albumin: A Link to Life History Strategy? Previous studies in our lab showed that the parasitic, anadromous Petromyzon marinus contains two […]

MARTELL, D.J.*; TRIPPEL, E.A.; KIEFFER, J.D.; Univ. of New Brunswick/St. Andrews Biological Station; St. Andrews Biological Station; Univ. of New Brunswick: The effects of temperature on haddock (Melanogrammus aeglefinus) muscle development through ontogeny Development in fish is not a static process as events are tightly interlinked and highly reliant on environmental variables, such as temperature. […]

SALVANTE, K.G.*; WALZEM, R.L.; WILLIAMS, T.D.; Simon Fraser Univ., Burnaby, B.C.; Texas A&M Univ., College Station; Simon Fraser Univ., Burnaby, B.C.: Temperature-Dependent Reproductive and Behavioral Plasticity in Breeding Birds Avian reproduction is generally timed to synchronize chick-rearing with periods of increased food abundance. Consequently, the energetically-demanding period of egg production may coincide with periods of […]

LEARY, C.J.; JESSOP, T.S.; GARCIA, A.M.; KNAPP, R.; Univ. of Oklahoma, Norman: Steroid Hormone Profiles and Relative Condition of Calling and Satellite Toads: Implications for Proximate Regulation of Behavioral Phenotypes Males of most anuran species (frogs and toads) vocalize to attract mates, however, individuals of many species may adopt alternative non-calling “satellite” tactics. Satellite males […]

HAHN, D.A.; The University of Arizona: Resource mediated plasticity in allocation between growth and storage in the grasshopper, Schistocerca americana. Many organisms have been shown to change resource allocation strategies in response to resource availability. This plasticity allows organisms to maximize fitness in different environments by changing allocation patterns. Body size and nutrient reserves are […]