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: 41918
Controlling grass carp (Ctenopharyngodon idella) with antimycin, rotenone, and thanite and by electrofishing
Abstract has not been submitted
Authors
Kenneth B. Cumming, Ralph M. Burress, Philip A. Gilderhus
A solenoid-actuated chemical-metering apparatus for use in flow-through toxicity tests
Abstract has not been submitted
Authors
J.H. Chandler, S.K. Partridge
A rural mail-carrier index of North Dakota red foxes
Rural mail-carrier sightings of red foxes (Vulpes vulpes) during mid-April, -July, and -September of 1969-73 were compared to spring fox family estimates derived by aerial searches of six townships. The mid-April mail-carrier index reflected annual fox density changes on the six townships (correlation coefficient = 0.958) . Random exclusions of individual mail-carrier reports indicated participati
Authors
S.H. Allen, A. B. Sargeant
Survival of wood duck and mallard broods in north-central Minnesota
Duckling survival in wood duck (Aix sponsa) and mallard (Anas platyrhynchos) broods was estimated from data obtained from 71 radio-marked brood hens on a study area in north-central Minnesota. Radio-marked hens produced 30 broods during the study, and 41 hens already leading broods were captured and radio-marked. Production estimates based on brood size counts were inflated by about 38 percent for
Authors
I. J. Ball, D.S. Gilmer, L.M. Cowardin, J. H. Riechmann
Leech (Hirudinea) infestations among waterfowl near Yellowknife, Northwest Territories
Fourteen species of aquatic birds, including 11 species of ducks, were infested with leeches Theromyzon rude and Placobdella ornata near Yellowknife, Northwest Territories. Leeches infested 88% of 41 American Wigeon (Anas americana) and 31% of 86 Lesser Scaup (Aythya affinis) examined after death. Lesser Scaup captured by drive-trapping contained significantly more leeches than undisturbed ducks.
Authors
James C. Bartonek, David L. Trauger
Effects of agricultural burning on nesting waterfowl
Agricultural burning in an intensively farmed region within Manitoba's pothole district is shown to affect the nesting activities of ground-nesting ducks. All species, except Blue-winged Teal (Anas discors), preferred unburned nest cover, although success was higher in burned areas, where predators may have exerted less influence. Attitudes of farmers, burning chronology, and nest destruction by f
Authors
E. K. Fritzell
Habitat use and home range of mallards breeding in Minnesota
Telemetry techniques were used to study habitat use and home range of 12 drake and 12 hen mallards (Anas platyrhynchos) in the forested region of north-central Minnesota during the 1968-72 breeding seasons. Circumneutral bogs and seasonal wetlands were the most frequently used communities; the lakeshore communities most used were sand-gravel, overhanging brush, and bog mat. Based on the availabili
Authors
D.S. Gilmer, I. J. Ball, L.M. Cowardin, J. Riechmann
Reproduction and development of four mallard lines
Abstract has not been submitted
Authors
R. J. Greenwood
Use of elevated nest baskets by ducks
Open-top nest baskets were mounted on upright metal poles in various wetlands to assess the value of baskets as a potential technique for increasing duck nest success. Observations were made from 1966-1968 in North and South Dakota, Minnesota, and Wisconsin and were continued through 1973 in North Dakota. Baskets were used most readily in the prairie pothole region; of the 1,038 basket nest sites
Authors
H. A. Doty, F.B. Lee, A.D. Kruse