Publications

nationwide residues of organochlorine compounds in wings of adult mallards and black ducks, 1979-80.	organochlorine residues in wings of adult mallards (anas platyrhynchos) and black ducks (anas rubripes) were monitored nationwide from birds harvested during the 1979-80 hunting season. dde residues were found in all samples. ddt residues had declined from levels reported in 1976 on a flyway basis but the decline was significant (p less than 0.05) only in the pacific flyway. levels of ddt, dde, tde, and dieldrin were low on a flyway basis, and all but dde declined significantly (p less than 0.05 ...	1981	6817294
new horned dinosaurs from utah provide evidence for intracontinental dinosaur endemism.	during much of the late cretaceous, a shallow, epeiric sea divided north america into eastern and western landmasses. the western landmass, known as laramidia, although diminutive in size, witnessed a major evolutionary radiation of dinosaurs. other than hadrosaurs (duck-billed dinosaurs), the most common dinosaurs were ceratopsids (large-bodied horned dinosaurs), currently known only from laramidia and asia. remarkably, previous studies have postulated the occurrence of latitudinally arrayed di ...	2010	20877459