HUNT, KE; ROLLAND, RM; KRAUS, SD; WASSER, SK; Univ. of Washington; New England Aquarium; New England Aquarium; Univ. of Washington: Fecal Glucocorticoid Analysis as a Potential Tool for Investigating Physiological Stress in North Atlantic Right Whales (Eubalaena glacialis) The North Atlantic right whale (Eubalaena glacialis) is one of the most endangered of the great whales, […]

MCNABB, F.M.A.; Virginia Tech: Evaluating Pollutant Effects on Thyroid Function: Comparing Variables Across Species Avian thyroid function was assessed at three levels to determine the sensitivity of these variables as indicators of thyroid disruption by pollutant chemicals. We used bobwhite quail and mallard ducks exposed to ammonium perchlorate (AP) in the laboratory and herring gulls […]

MEENUDDIN, Hafzah; DUTTA, Hiran; Kent State University, Kent; Kent State University, Kent: Effects of Endosulfan on Testes of Bluegill Fish The effects of the organochloride compound, endosulfan, on the testes of bluegill (Lepomis macrohirus) were studied. Histopathological analysis of testicular tissue was made after 24 hours of exposure to 0.25 ?g/L, 0.50 ?g/L, 0.75 ?g/L, […]

VEECH, J.A.; Colorado State University: Using structural equation modeling to compare hypotheses of local and regional species diversity Structural equation modeling (SEM) was used to evaluate several hypotheses previously proposed to explain local and regional species diversity. The North American Breeding Bird Survey provided estimates of species richness within communities (local diversity) and ecoregions (regional […]

GHERARDI, F; ACQUISTAPACE, P; AQUILONI, L; BARBARESI, S; CIONI, A; PAGLIANTI, A; RENAI, B; TRICARICO, E; Univ. of Florence, Italy; Univ. of Florence, Italy; Univ. of Florence, Italy; Univ. of Florence, Italy; Univ. of Florence, Italy; Univ. of Florence, Italy; Univ. of Florence, Italy; Univ. of Florence, Italy: The red swamp crayfish in Europe: lessons […]

SOLOMON, Scott E; MIKHEYEV, Alexander S; The University of Texas at Austin; The University of Texas at Austin: The Ant Fauna of Cocos Island, Costa Rica Island communities are often the subject of ecological research because they are generally less complex than otherwise similar continental habitats. Relatively small and isolated islands are expected to have […]

TRACY, C.R.; AVERILL-MURRAY, R.; BOARMAN, W.; DELEHANTY, D.; HEATON, J.; MCCOY, E.; MORAFKA, D.; NUSSEAR, K.; Univ. of Nevada, Reno; Arizona Game and Fish; U.S.G.S.; Idaho State Univ.; Univ. of Redlands; Univ. of So. Florida; California Acad. of Sci.; Univ. of Nevada, Reno: Scientific Assessment of the Desert Tortoise Recovery Plan An eclectic committee of […]

REID, Adele/M; HOCHULI, Dieter/F; CASSIS, Gerasimos ; University of Sydney; University of Sydney; Australian Museum: Long-term effect of nutrients and grazing on grassland ground-dwelling invertebrates Sustainable grazing depends on the functioning of ecological processes, but because communities are complex and contain large numbers of species, understanding individual processes are difficult. Community dynamics must be studied […]

MCCOY, Adam M; Harvard University: Host-Symbiont Specificity:A Means to Predict a Biological Invasion Despite recognition of the potential ecological consequences of biological invasions, factors that determine the ability of exotics to successfully invade remain largely unknown. Many species in the marine environment rely on specific interactions with microbes for a variety of processes including settlement […]

CASTELLANO, M.J.*; VALONE, T.J.; Saint Louis University; Saint Louis University: Effects of Livestock Removal and Perennial Grass Recovery on the Lizards of a Desertified Arid Grassland The effects of livestock grazing and desertification on birds, rodents and plants have been well studied. Herpetofuana, however, have received relatively little attention. In 1958 a livestock exclosure was […]