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: 41772
Aggression of foraging migrant semipalmated sandpiper
No abstract available.
Authors
B. A. Harrington, S. Groves
California ospreys begin incubation at a frozen mountain lake
No abstract available.
Authors
C. J. Henny
Ruptured-yolk peritonitis and organochlorine residues in a royal tern
Ruptured-yolk peritonitis was responsible for the death of a royal tern. Lodgment of eggs in the oviduct was probably due to reverse peristalsis brought about by breakage of the thin-shelled eggs and secondary bacterial infection. The thin shells were apparently not related to the low levels of DDE and other organochlorine pollutants found in tissues and egg contents.
Authors
L. J. Blus, L. N. Locke, C. J. Stafford
Residues of organochlorines and heavy metals in tissues and eggs of brown pelicans, 1969-73
Shells of brown pelican (Pelecanus occidentalis) eggs collected in South Carolina from 1969 through 1973 were significantly thinner than shells of those collected before 1947. Residues of 10 organochlorine pollutants and 10 heavy metals were found in these eggs. Total organochlorine residues were apparently magnified 23 times from fish to pelican eggs, but interpretation of biomagnification was co
Authors
L. J. Blus, B.S. Neely, T. G. Lamont, B. M. Mulhern
Reduction in courtship behavior induced by DDE in male ringed turtle doves
The effects of p,p?-DDE on the intensity of male Ringed Turtle Doves? courtship behavior were determined for dietary levels of 10 ppm and 50 ppm (dry weight). Pairs of doves were placed in cages for 12.5 min on 5 consecutive days for behavioral observation before dietary treatment and for periods 31-35 and 5963 days after initiation of the treated diet. Total amount of time spent displaying courts
Authors
M. A. Haegele, R. H. Hudson
Birds of prey, DDT, and tussock moths in Pacific Northwest
No abstract available.
Authors
C. J. Henny
Residues in common flicker and mountain bluebird eggs one year after a DDT application
Common flicker (Colaptes auratus) and mountain bluebird (Sialia currucoides) eggs were examined 1 year after DDT application and showed a marked difference. Residue levels in mountain bluebird eggs were approximately 10 times higher than in common flicker eggs (5.29 to 0.58 ppm wet weight). These differences can be explained by disparate dietary habits. The mean level in American kestrel (Falco sp
Authors
C. J. Henny, R.A. Olson, D. L. Meeker
Reproductivity of Japanese quail fed mercuric chloride in the absence of vitamin D
Mercuric chloride (HgCl2) was tested at 16 p.p.m. Hg for vitamin D sparing activity by presenting it dietarily in the presence and absence of 25-hydroxycholecalciferol (25-HCC) to Japanese quail (Coturnix c. japonica) for 25 days. No gross signs characteristic of mercury poisoning were observed, but some predictable effects of vitamin D deficiency on avian reproduction were manifested within 10 da
Authors
E. F. Hill, J. H. Soares
Suspected lead toxicosis in a bald eagle
An immature bald eagle (Haliaeetus leucocephalus) was submitted to the University of Maryland, College Park, for clinical examination. The bird was thin, had green watery feces, and was unable to maintain itself in upright posture. Following radiography, the bird went into respiratory distress and died. Numerous lead shot were recovered from the gizzard, and chemical analysis of liver and kidney t
Authors
E. Jacobson, J. W. Carpenter, M. Novilla
Responsiveness of 6 to 14 generations of birds to dietary dieldrin toxicity
The lethal dietary toxicity of dieldrin was estimated repeatedly during 8 years of testing young bobwhites (Colinus virginianus), Japanese quail (Coturnix c. japonica), ring-necked pheasants (Phasianus colchicus), and mallards (Anas platyrhynchos). Toxicities, quantified as 8-day LC50 values (5 days on toxic diet, followed by 3 days of untreated feed), were estimated at least 18 times per species.
Authors
E. F. Hill, J. W. Spann, J.D. Williams
A research program for the endangered masked bobwhite
No abstract available.
Authors
D. H. Ellis, J.A. Serafin