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
Breeding bird census - diked coastal salt marsh
Abstract has not been submitted
Authors
P.C. Sorensen, P. F. Springer
Breeding bird census - coastal sand dunes
Abstract has not been submitted
Authors
P.C. Sorensen, P. F. Springer
Restoring the Aleutian Canada goose
Abstract has not been submitted
Authors
F.B. Lee, R.P. Schulmeister
Breeding bird populations of selected grasslands in east central North Dakota -- 1976 - Kentucky blue grass prairie and mixed prairie I-V
Abstract has not been submitted
Authors
D. H. Johnson
Age and growth of the walleye in Lake Erie, 1963-1968
Age and length distributions are given for 6,764 walleyes, Stizostedion v. vitreum (Mitchill), sampled during 1963-1968 from commercial landings of walleyes representing discrete populations in the eastern and western basins of Lake Erie. In the eastern basin, where all catches were made with gill nets, age-groups III and IV predominated in samples from large-mesh nets and age-group I in samples f
Authors
David R. Wolfert
Changes in yellow perch (Perca flavescens) populations of Lake Michigan, 1954-75
In the early and mid-1960s the abundance of yellow perch (Perca flavescens) in Lake Michigan declined abruptly. The decline began in the northern part of the lake and spread progressively southward. Circumstantial evidence suggests that the nonnative alewife (Alosa pseudoharengus), by interfering with perch reproduction, was the primary cause of the decline. The alewife was first reported in north
Authors
LaRue Wells
Dentition throughout the life history of the landlocked sea lamprey, Petromyzon marinus
No abstract available.
Authors
Patrick J. Manion, George W. Piavis
Temporal patterns of courtship in a caviomorph rodent, the green acouchi, (Myoprocta pratti)
No abstract available at this time
Authors
C. Schonewald
Establishment of white perch, Morone americana, in Lake Erie
White perch, Morone americana, was first reported in Lake Erie in 1953. No further reports of capture were recorded until 1973, when one fish was taken. Three other captures were confirmed in 1974, and 34 in 1975. All but 3 of the 38 specimens were taken in the warm, shallow western basin and the extreme eastern end of the central basin. The widespread distribution and the sizable numbers of speci
Authors
Wolf-Dieter N. Busch, David H. Davies, Stephen J. Nepszy
Abnormal tooth development in a sea lamprey
Sea lampreys en route to their spawning grounds have been captured at mechanical or electrical structures that have been in operation for 1 to 27 spawning seasons (1949-75) on some 167 tributaries of the upper Great Lakes; more than 750,000 were taken in 1949-70 (Smith 1971). Among these lampreys (all of which were routinely examined at the time of capture) was one female (length, 434 mm; weight,
Authors
Patrick J. Manion, Lee H. Hanson
Ecological interactions involving the sea otter
No abstract available at this time
Authors
J. F. Palmisano, J. A. Estes