Caddo Ceramic Sherd Assemblage from a Hearth Feature at the Cherokee Lake Site (41RK132) in Rusk County, Texas

CADDO LAKE ANNOTATED BIBLIOGRAPHY MARCH 2005 Texas

Hg-contaminated terrestrial spiders pose a potential risk to songbirds at Caddo Lake (Texas/Louisiana, USA).

Methylmercury (MeHg) is an environmental contaminant that can have adverse effects on wildlife. Because MeHg is produced by bacteria in aquatic ecosystems, studies of MeHg contamination of food webs historically have focused on aquatic organisms. However, recent studies have shown that terrestrial organisms such as songbirds can be contaminated with MeHg by feeding on MeHg-contaminated spiders....

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...

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...

Genesis of a Late-Holocene Soil Chronosequence at the Lubbock Lake Archaeological Site, Texas

Field and laboratory data combined with geochronological information were used to investigate the nature and rates of pedogenesis of three late Holocene soils at the Lubbock Lake archaeological site (Southern High Plains of Texas). A variety of pedologic characteristics become better expressed with time, and aerosolic additions and burial of the soils significantly affect the development of the...