Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16780
Organochlorine and heavy metal residues in bald eagle eggs
Bald eagle eggs collected in 1968 from nests in Wisconsin, Maine, and Florida all contained residues of DDE, DDD, dieldrin, heptachlor epoxide, and polychlorinated biphenyls. Many also contained traces of DDT. Eggs from five nonproductive nests sampled in Maine contained much higher residues than did eggs collected from either productive or nonproductive nests in Wisconsin and Florida.
Authors
W.C. Krantz, B. M. Mulhern, George E. Bagley, A. Sprunt, F.J. Ligas, W.B. Robertson
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