Publications
USGS Northern Prairie Wildlife Research Center staff publish results of their research in USGS series reports and in peer-reviewed journals. Publication links are below. Information on all USGS publications can be found at the USGS Publications Warehouse.
Filter Total Items: 1961
The importance of shallow wetlands to waterfowl production The importance of shallow wetlands to waterfowl production
Abstract has not been submitted
Authors
Gary L. Krapu
Observations on black-crowned night heron breeding success in a North Dakota marsh Observations on black-crowned night heron breeding success in a North Dakota marsh
Storms and mammalian predation severely reduced production in a Black-crowned Night Heron (Nycticorax nycticorax) colony in two years and drought prevented nesting in two other years from 1976 to 1980. Maximum estimated production was 2.2 young per pair in 1978, the only year production was sufficient to maintain the population.
Authors
R. J. Greenwood
Recent scoter brood observations at Churchill, Manitoba Recent scoter brood observations at Churchill, Manitoba
No abstract available.
Authors
C. A. Faanes
The nesting season - Northern Great Plains The nesting season - Northern Great Plains
Abstract has not been submitted
Authors
C. A. Faanes
The winter season - Northern Great Plains The winter season - Northern Great Plains
This winter was hardly a winter by usual standards. At Grand Forks six record highs were set in February, a month which averaged 11°F above normal, and a -20° reading was not recorded the entire season for the first time in 50 years. Fort Peck Lake in Montana finally iced over February 12, only to begin reopening three days later (CMC). Temperatures reached into the 70s in South Dakota...
Authors
David O. Lambeth, Craig A. Faanes
Occurrence of twin gadwall embryos Occurrence of twin gadwall embryos
No abstract available.
Authors
J. T. Lokemoen, D.E. Sharp
Improved population estimates through the use of auxiliary information Improved population estimates through the use of auxiliary information
When estimating the size of a population of birds, the investigator may have, in addition to an estimator based on a statistical sample, information on one of several auxiliary variables, such as: (1) estimates of the population made on previous occasions, (2) measures of habitat variables associated with the size of the population, and (3) estimates of the population sizes of other...
Authors
Douglas H. Johnson
Summarizing remarks: estimating relative abundance (Part I) Summarizing remarks: estimating relative abundance (Part I)
No abstract available.
Authors
Douglas H. Johnson
The role of observer bias in the North American Breeding Bird Survey The role of observer bias in the North American Breeding Bird Survey
Ornithologists sampling breeding bird populations are subject to a number of biases in bird recognition and identification. Using Breeding Bird Survey data, these biases are examined qualitatively and quantitatively, and their effects on counts are evaluated. Differences in hearing ability and degree of expertise are the major observer biases considered. Other, more subtle influences are...
Authors
C. A. Faanes, D. Bystrak
Procedures for the use of aircraft in wildlife biotelemetry studies Procedures for the use of aircraft in wildlife biotelemetry studies
This is a report on the state of the art methodology and on questions that arise while one is preparing to use aircraft in a biotelemetry study. In general the first step in preparing to mount an antenna on an aircraft is to consult with a certified aircraft mechanic. Aircraft certification is discussed to provide background information concerning the role of the Federal Aviation...
Authors
David S. Gilmer, Lewis M. Cowardin, Renee L. Duval, Larry M. Mechlin, Charles W. Shaiffer, V.B. Kuechle
Birds of the St. Croix River valley: Minnesota and Wisconsin Birds of the St. Croix River valley: Minnesota and Wisconsin
The St. Croix River Valley encompasses nearly 11,550 km2 in east-central Minnesota and northwestern Wisconsin. A wide range of habitats are available for birds including upland oak, lowland deciduous, maple-basswood, lowland and upland coniferous forests, natural basin wetlands, and grasslands. Situated in the north-central region of the United States, the valley is a biological...
Authors
Craig A. Faanes
Nesting of the great-tailed grackle in Nebraska Nesting of the great-tailed grackle in Nebraska
Abstract has not been submitted
Authors
C. A. Faanes, W. Norling