Publications
This list of publications includes peer-review journal articles, official USGS publications series, reports and more authored by scientists in the Ecosystems Mission Area. A database of all USGS publications, with advanced search features, can be accessed at the USGS Publications Warehouse.
Filter Total Items: 41778
Two species of Simuliidae (Diptera), Cnephia ornithophilia and Prosimulium vernale, from Maryland
The finding of Cnephia ornithophilia Davies, Peterson, & Wood and Prosimulium vernale Shewell for the first time at the Patuxent Wildlife Research Center, Laurel, Maryland, is described. Larvae of C. ornithophilia were collected Nov. 15, pupae Feb. 14, and adult flies Feb. 28. No immature or adult specimens were found between Apr. 2 and Nov. 14. The greatest number of immature stages was found in
Authors
I.B. Tarshis, J.N. Stuht
Distribution of DDT residues in tissues of birds in relation to mortality, body condition, and time
No abstract available.
Authors
L. F. Stickel, W. H. Stickel
The thin eggshell problem
It has long been known that DDT and related chemicals can impair the reproduction of birds. In early years of organochlorine pesticide use, widespread mortality occurred immediately following heavy applications of these chemicals, and survivors contained substantial amounts of toxicant in their tissues. Repopulation from untreated areas tended to conceal the extent of the effects. DDT and dieldr
Authors
L. F. Stickel, L.I. Rhodes
Induction of liver microsomal activities in Japanese quail [with supplemental information on] the induction of microsomal ethylmorphine demethylase activity in sparrow hawk livers by diets containing DDT and dieldrin or DDE
No abstract available.
Authors
J.W. Gillett, Ron Porter, Stanley N. Wiemeyer, T.H. Gram, D.H. Schroeder, J.R. Gillette
DDE and DDD residues correlated with mortality of experimental birds
Nearly everywhere in nature are found DDE and DDD, which are metabolites of DDT, and they often become concentrated through food chains. DDD is also a commercial insecticide. large amounts of both are frequently found in birds, but the significance of these amounts has puzzled many owrkers. Studies at Clear Lake, California1 gave some data on DDD danger levels, but less is known of DDE, the memb
Authors
William H. Stickel, Lucille F. Stickel, Francis B. Coon