Early Caddo Period Ceramic Vessels from the Roger D. Simmos Site (41TT321), Titus County, Texas

CADDO LAKE ANNOTATED BIBLIOGRAPHY MARCH 2005 Texas

Hays County, Texas

The widespread Berberis trifoliolata is sympatric with the narrowly restricted B. swaseyi in central Texas, where apparent intermediates occur. A detailed field study of sympatric populations in northern Hays Co. during 2004 to 2007 clarifies the morphological and phenological differences between the two species and shows that intermediates almost surely arose from hybridization. Limited eviden...

Ecological factors regulating mercury contamination of fish from Caddo Lake, Texas, U.S.A.

Most studies examining the influence of ecological characteristics of fish on Hg concentration in fish tissues have focused on a few variables and been conducted in northern ecosystems. We examined how total length (TL), age, food-web position (estimated using delta13C and delta15N), and habitat were related to total Hg concentrations in 10 species of fish from Caddo Lake, a subtropical reservo...

Factors influencing mercury accumulation in three species of forage fish from Caddo Lake, Texas, USA.

Most studies that have examined mercury (Hg) contamination of fish have focused on game species feeding near the top of the food web, while studies that examine forage fish that feed near the base of the food web are rare. We conducted a survey of Hg contamination in three species of forage fish, brook silverside (Labidesthes sicculus), threadfin shad (Dorosoma petenense) and gizzard shad (Doro...

QnAs with Roger D. Cone.

The factors underlying obesity are multifaceted, but recent research suggests that the brain’s melanocortin circuits, which play a key role in controlling the balance between energy consumption and use, lie at the heart of obesity. According to Roger D. Cone, elected to the National Academy of Sciences in 2010 and chair of the Department of Molecular Physiology and Biophysics at Vanderbilt Univ...