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
Possible breeding colonies of Manx shearwater on the Island of Hawaii
No abstract available.
Authors
C.B. Kepler, J. Jeffrey, J. M. Scott
Recent changes in California condor eggshells
No abstract available.
Authors
L.F. Kiff, David B. Peakall, S.R. Wilbur
Noteworthy ornithological records from Abaco, Bahamas
No abstract available.
Authors
W.B. King, N.F.R. Snyder, M. Segnestam, J. Grantham
Aerial scratching, leeches, and nasal saddles in green-winged teal
No abstract available.
Authors
F. McKinney, S.R. Derrickson
Forty-second breeding bird census: Climax beech-hemlock forest
No abstract available.
Authors
B.R. Noon
Agnonistic behavior in short-billed dowitchers feeding on a patchy resource
In this paper we describe an instance of unusual, agonistic behavior in a flock of migrant Short-billed Dowitchers (Limnodromus griseus) . We compare this behavior to that of other flocks feeding at the same time at other locations in the same estuary and then present evidence suggesting that this behavior resulted from the patchy distribution of the probable foraging resource of this flock, eggs
Authors
Elizabeth P. Mallory, Davod C. Schneider
Reliability of determining sex and age of band-tailed pigeons by plumage characters
No abstract available.
Authors
M.F. Passmore, R. L. Jarvis
Embryotoxic effects of crude oil containing nickel and vanadium in mallards
No abstract available.
Authors
D. J. Hoffman
Teratogenic effects of external egg applications of methyl mercury in the mallard, Anas platyrhynchos
The embryotoxic potential of external applications of methyl mercury on mallard eggs was investigated to assess the possible impact of mercury transferred from the plumage of effluent-contaminated aquatic birds to their eggs. Eggs were treated on day 3 of development with microliter applications of methyl mercury that was dissolved with ethyl acetate into an aliphatic hydrocarbon vehicle. Mercury
Authors
D. J. Hoffman, Johnnie N. Moore
Comparison of game-farm and wild-strain mallard ducks in accumulation of methylmercury
The accumulation of mercury was compared in game-farm and wild-strain mallard ducks fed a diet containing 0.5 ppm mercury in the form of methylmercury dicyandiamide. There were no significant differences between the two strains in levels of mercury that accumulated in blood, kidney, liver, breast muscle, brain, eggs, or ducklings. Mercury levels in blood were significantly correlated with levels i
Authors
G. H. Heinz