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: 41771
White-tailed deer migration and its role in wolf predation
Seventeen white-tailed deer (Odocoileus virginianus) were radio-tagged in winter yards and tracked for up to 17 months each (881 locations) from January 1973 through August 1974 in the central Superior National Forest of NE Minnesota following a drastic decline in deer numbers. Ten vyolves (Canis lupus) from 7 packs in the same area were radiotracked before and/or during the same period (703 loca
Authors
R.L. Hoskinson, L. D. Mech
Aging immature mourning doves by primary feather molt
No abstract available.
Authors
G.H. Haas, S.R. Amend
Woodcock use of clearcut aspen areas in Wisconsin
Clearcut areas in northern Wisconsin aspen (Populus spp., mostly P. tremuloides) forests were highly attractive to woodcock (Philohela minor) for feeding and night-roosting, and made excellent sites for woodcock trapping and banding. Woodcock use of clearcuts was extended for several years by annually removing vegetation from trails with a bulldozer. A continued high demand for aspen pulpwood ma
Authors
J.B. Hale, L.E. Gregg
Population ecology of the mallard: VI. The effect of exploitation on survival
No abstract available.
Authors
David R. Anderson, Kenneth P. Burnham
Parasites and diseases of warmwater fishes
No abstract available.
Authors
Fred P. Meyer, Glenn L. Hoffman
An assessment of estuarine and nearshore marine environments
No abstract available.
Authors
M.P. Lynch, B.L. Laird, N.B. Theberge, J.C. Jones
A reward band study of mallards to estimate band reporting rates
Reward bands ($10) were placed on 2,122 hatching-year mallards (Anas platyrhynchos), and an additional 11,490 received conventional bands (controls) to estimate band reporting rates. An analysis of band recoveries indicated that the reporting rate was dependent primarily upon three factors: (1) the distance banded birds were recovered from the banding site, (2) band collecting activities of conse
Authors
C. J. Henny, K.P. Burnham
Organochlorine residues in females and nursing young of the big brown bat (Eptesicus fuscus)
Carcasses and brains of 18 big brown bats from Gaithersburg, Maryland, were analyzed for residues of organochlorine insecticides and PCB's. Eleven bats were adult females, and six of these had seven nursing young associated with them....Young bats resembled their parents in microgram amounts of PCB and DDE present in carcasses. However, concentrations of chemicals (expressed as ppm) were significa
Authors
D. R. Clark, T. G. Lamont
Organochlorine residues and reproduction in the big brown bat
Twenty-six pregnant big brown bats (Eptesicus fuscus) were collected at Montpelier Barn, Laurel, Maryland, and kept in individual cages until parturition. Seven young in 5 litters were born dead; 21 litters contained only living young. Polychlorinated bipbenyl (PCB, Aroclor 1260) crossed the placenta two to three times more readily than did DDE. Concentrations of PCB were significantly greater
Authors
D. R. Clark, T. G. Lamont
Organochlorine residues in three bat species from four localities in Maryland and West Virginia, 1973
In 1973, 119 bats of three species were collected from four localities in Maryland and West Virginia. The collection included 43 big brown bats (Eptesicus fuscus), 43 little brown brown bats (Myotis lucifugus), and 33 eastern pipistrelles (Pipistrellus subflavus). The bats were collected from Round Top Mountain, Washington Co., Md.; Trout Cave, Pendleton Co., W. Va.; Montpelier Barn, Prince George
Authors
D. R. Clark, R. M. Prouty
Establishment of the black-tailed jackrabbit on the Virginia eastern shore
No abstract available.
Authors
R. B. Clapp, J.S. Weske, T.C. Clapp