FASANO, C.*; QUACKENBUSH, L.S.: Growth of juvenile blue crabs,Callinectes sapidus. In North Carolina’s Cape Fear River estuary, juvenile blue crabs are often found in sand and mud habitats far beyond the mouth of the estuary. Predators, prey availability or other factors, may drive the crabs’ invasion of the low salinity portions of the estuary. We […]

Temkin, M. H.*; Nelson, M. L.; Snell, A.; Erickson, J. M.: Genetic Variation In The Freshwater Mussel Elliptio complanata From Northern New York Freshwater mussels are an important group of animals inhabiting the rivers and lakes of North America. Many native populations of freshwater mussels in the Adirondack highlands and St. Lawrence lowlands have been […]

SUMIDA, S.S.*; DEVLIN, K.R.: Features of Transitions between Vertebrate Major Groups of Terrestrial Vertebrates The advent of cladistic analysis has provided more rigorous means of defining lineages. Interpretations of the stratigraphic range or nature of the transition depend on the use of crown-clade or node-based approaches. In seeking common patterns, we restrict ourselves to transitions […]

Castro, J.M.*; Parker-Renga, I.M.; Ketterson, E.D.; Val Nolan Jr.: Experimentally elevated testosterone in male dark-eyed juncos suppresses cell-mediated immune function of social mates and offspring. The immunocompetence handicap hypothesis (ICHH) predicts that testosterone-dependent secondary sexual signals that attract females also serve as honest indicators of male quality owing to testosterone’s suppressive effect on immune function. […]

Fentress, J.A.*; Brouwer, T.H.; Brouwer, M.; McLachlan, J.A.; Cheek, A.O.: Examination of a potential environmental anti-estrogen Anthracene, a polyaromatic hydrocarbon, has been shown to induce anti-estrogenic effects in fish. In the medaka, Oryzias latipes, short term exposure to 12 or 20ug/ml anthracene (ANT) blocks estrogen induced feminization, while long term exposure leads to reduced fertility […]

Rex Meade Strange: Evolution of sexual dimorphisms in spottail darters (teleostei: percidae): fitness sets, phylogenetics, and a test of the egg-mimic hypothesis  I investigated the dynamics between reproductive ecology and morphological phenotypes among spottail darters by developing a fitness set model. Spottail darters exhibit two types of sexual dimorphism, and both presumably related to […]

REMAGE-HEALEY, L.; ROMERO, L.M.*: Effects of Insulin and Corticosterone on Stress in Captive Starlings: Daily and Seasonal Variations in Metabolite Responses. Captive starlings (Sturnus vulgaris) were used to examine the effects of exogenous insulin and corticosterone administration on plasma metabolite levels in response to stress, and how these responses varied over the course of the […]

HAIGWOOD, J.T.; PEREZ, M.*; KELLEY, K.M.: Effects of Glucagon and Glucagon-Like Peptide-1 (GLP-1) on Glycemic Status and Glucose Production in the Isletectomized Diabetic Goby In the teleost fish, Gillichthys mirabilis, a total endocrine pancreatic isletectomy procedure induces hyperglycemia and a host of other symptoms typical of insulin-dependent diabetes mellitus (IDDM). Thus, in the isletectomized (Ix) […]

Leonard, J.B.K.*; Plisetskaya, E.M.; Silverstein, J.T.: Effect of season and age on the hypothalamic neuropeptide Y mRNA response to fasting in channel catfish While food intake is likely controlled by a variety of interacting neuroendocrine factors, neuropeptide Y (NPY) has repeatedly been implicated in this complex behavior. NPY’s affects on food intake in fish are […]

KELTY, J.D.*; NOSEWORTHY, P.; FEDER, M.E.; ROBERTSON, R.M.; RAMIREZ, J.M.: Effect Of Heat Pretreatment On Spontaneous Glutamatergic And Glycinergic Synaptic Transmission During Subsequent Thermal Stress In The Mouse Pre-B-tzinger Complex Brief exposure to sublethal high temperature induces protection against a variety of stresses (e.g., high temperature, oxidation, hypoxia) in many organisms. The breadth of protection […]