VAN DER MEIJDEN, A.*; VREDENBURG, V.; SOPORY, A.; PETIRS, B.; TIWARI, R.; WAKE, D.B.: AmphibiaWeb: an information system for amphibian conservation biology Amphibian populations have declined over the past decades, particularly in countries such as Costa Rica, Panama, Australia and the United States of America. Several species have gone extinct and others are at great […]

MILLER, B.A.; HOESE, W.J.: Alternative conceptions in evolution: A pilot study using a pre- and post-instruction assessment to detect misconceptions college students have about evolution in introductory biology courses. Previous research has shown that students in their elementary, secondary, and college years hold misunderstandings about evolution by natural selection. Determination of which alternative concepts students […]

HAMMOND, K.A.*; CHAPPELL, M.A.: Age and Aerobic Performance in Deer Mice While it is common to examine the effects of aging on whole animal performance between juvenile and adult stages there is less of a focus on how performance changes with age within the adult animal. We examined 197 deer mice (Peromyscus maniculatus) to determine […]

TRILK, J.L.*; LINDER, A.J.; GREENE, H.M.; ALBERGHINA, D.; WICKLER, S.J.: Aerobic Improvement in horses using a lactate-guided conditioning program Although blood lactate concentrations [LA] are widely used in horse studies to assess athletic performance, they are seldom used as a guide in endurance conditioning programs. We wished to determine the magnitude and rate at which […]

STURTEVANT, MARK A.: A Laboratory Exercise for Analysis of Gene Expression and Function An important goal in life science teaching is to provide students with hands-on experiences in cellular and molecular biology concepts and techniques. This poster describes a three-step laboratory exercise that allows students to analyze expression and function of genes during development of […]

HILL, E.M.; WICKLER, S.J.*; SZEWCZAK, J.M.; GREENE, H.M.; COGGER, E.A.: 2,3-diphosphoglycerate in burros (Equus asinus) after six weeks at altitude Research from our laboratory indicates that both horses and mules increase concentrations of 2,3-DPG in their red cells after acclimatization to high altitude. This increase has been argued to aid in the acclimatization process by […]

SCHILDER, R.J.; MARDEN, J.H.: Workloop Force and Lever Arm Length Allometry in Dragonfly Flight Motors Maximum isometric muscle force production scales as muscle mass2/3, whereas maximum net force output by flying animals scales isometrically with total flight muscle mass. What causes this transition between the two scaling relations? We examined this question by subjecting dragonfly […]

ARONOWSKY, A.: What is the function for sediment incorporation in naticid gastropod egg masses? Naticid gastropods are the only molluscs that incorporate large amounts of local sediment in the construction and sealing of their unique egg masses, called egg collars. Phylogenetic analysis suggests the use of sediment is the basal condition for naticids and might […]

GEIS, A.*; BARICHIVICH, J.; WIBBELS, T.: Use of a testosterone RIA to estimate the sex ratio of juvenile Kemp’s ridleys at Cedar Key, Florida The Kemp’s ridley (Lepidochelys kempi) is the most endangered sea turtle in the world. Like all species of sea turtles, the Kemp’s ridley possesses temperature-dependent sex determination (TSD) in which the […]

FROLICH, L.M.; NOGALES, F.; ALMEIDA, D.; MCCORMICK, B.; MATHER-HILLON, J.; FORSEY, H.: Unregistered Frog Biodiversity in the Tropical Andes of Northern Ecuador. The combination of high local endemism among a specialized flora and fauna, along with rapid forest degradation, has led to heavy attention on the tropical Andes as a priority for studying previously unregistered […]