POWERS, D.R.*; MCWHORTER, T.J.; KIMBERLY, D.J.; BAKER, T.L.; THORNBURG, K.L.: Characterization and Distribution of Aquaporin Water Channels in the Hummingbird Gastrointestinal Tract Because hummingbirds have a high-energy demand, and their diet a high-water content, they can consume in excess of twice their body weight in water each day. It has been thought that much of […]

HARPER, S.L.*; REIBER, C.L.: Cardiac and respiratory adjustments of the tadpole shrimp in response to chronic and acute hypoxia We have investigated the physiological basis of crustacean hypoxia tolerance using tadpole shrimp as a model organism. In particular, we examined the cardiorespiratory mechanisms employed by tadpole shrimp to survive euryoxic conditions. We reared tadpole shrimp […]

ATTWOOD, A.J.; SIEGEL, Corryn; LIGHT, D.B.*: Calcium Stimulates Volume Decrease in Necturus Erythrocytes This study examined whether cytosolic calcium regulates cell volume decrease in Necturus maculosus (mudpuppy) erythrocytes. Hypotonic (0.5X Ringer) swelling stimulated an increase in intracellular calcium levels (detected with Fluo-4 and epifluorescence microscopy). A similar increase in calcium did not occur under isosmotic […]

MONTEIRO, A.S*; OKAMURA, B.; HOLLAND, P.W.H: Buddenbrockia is a MYXOZOA Buddenbrockia is a strange vermifom animal, first reported in 1850 by Dumortier and van Beneden within colonies of the freshwater bryozoan Alcyonella (Plumatella) fungosa from Belgium. Its systematic position was not been suggested at the time. Using light microscopy, Schroder (1910) described longitudinal muscle blocks […]

MARTIN, G.G.*; CHIU, A.: Barriers to pathogens penetrating the intestine of the penaeid shrimp, Sicyonia ingentis. The intestines are the longest section of the digestive tract in shrimp and their function is not clear. They are not involved with digestion. Shrimp ingest detritus with a high concentration of micro-organisms. What mechanisms prevent microbes from penetrating […]

JOHNSON, J. I.; SUDHEIMER, K. D.; MARINO, L.; RILLING, J. K.; MURPHY, T. L.; FOBBS, A. J.: Atlas of The Brain of Bottle-Nose Dolphin Tursiops Truncatus Using Magnetic Resonance Images and Corresponding Stained Sections Using magnetic resonance imaging (MRI), structures can be analyzed in their precise quantitative spatial interrelationships, which is difficult to do after […]

MENZEL, LP; TINCU, JA; SJOSTRAND, BM; LEHRER, RI: Antimicrobial peptides of tunicate hemocytes: cellular source and effects on bacterial targets. Antimicrobial peptides are key effector molecules that equip the innate immune system to combat infections. We studied antimicrobial peptides found in the hemocytes of two tunicates, Styela clava and Styela plicata. The hemocytes of S. […]

LOPEZ, J.P.; PODRABSKY, J.E.; SOMERO, G.N.: Anoxia-induced Quiescence in Embryos of The Annual Killifish Austrofundulus limnaeus The annual killifish Austrofundulus limnaeus inhabits ephemeral ponds in the coastal desert of the Maracaibo basin in Venezuela. Embryos of A. limnaeus are deposited into the muddy substrate of these ponds and are thus likely exposed to severe hypoxia […]

MCFADDEN, C.S.; ADOLPH, S.C.*; VAN HECKE, G.R.; KARUKSTIS, K.K.; HASKELL, R.C.; WETTACK, F.S.: An Integrative Chemistry, Biology, and Physics Laboratory Course for First-year College Students For the past three years, we have been teaching a year-long integrative laboratory course for first-year students at Harvey Mudd College, an undergraduate college of science and engineering. The course […]

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 […]