David Andersen, PhD (Former Employee)
Science and Products
Filter Total Items: 64
Seasonal productivity in a population of migratory songbirds: why nest data are not enough Seasonal productivity in a population of migratory songbirds: why nest data are not enough
Population models for many animals are limited by a lack of information regarding juvenile survival. In particular, studies of songbird reproductive output typically terminate with the success or failure of nests, despite the fact that adults spend the rest of the reproductive season rearing dependent fledglings. Unless fledgling survival does not vary, or varies consistently with nest
Authors
Henry M. Streby, David E. Andersen
Modeling survival and movement of resident giant Canada goose populations in the Atlantic flyway Modeling survival and movement of resident giant Canada goose populations in the Atlantic flyway
Distribution of resident giant Canada geese (Branta canadensis maxima) has changed markedly in the Atlantic Flyway in recent decades. This change may be related to habitat variation or to changes in hunting regulations. We attempt to assess impacts of hunting regulations on survival, movement, and harvest rate of Canada goose populations from Maine to South Carolina. During 15 June-31...
Authors
M.W. Miller, W. L. Kendall, J.B. Hestbeck
Red-shouldered hawk broadcast surveys: Factors affecting detection of responses and population trends Red-shouldered hawk broadcast surveys: Factors affecting detection of responses and population trends
Forest-nesting raptors are often difficult to detect and monitor because they can be secretive, and their nests can be difficult to locate. Some species, however, respond to broadcasts of taped calls, and these responses may be useful both in monitoring population trends and in locating nests. We conducted broadcast surveys on roads and at active red-shouldered hawk (Buteo lineatus)...
Authors
Mary Anne McLeod, David E. Andersen
Monitoring exposure of nestling songbirds to agricultural application of an organophosphorus insecticide using cholinesterase activity Monitoring exposure of nestling songbirds to agricultural application of an organophosphorus insecticide using cholinesterase activity
In June 1992 we collected 53 blood plasma samples from nestling red‐winged blackbirds (Agelaius phoeniceus), house sparrows (Passer domesticus), and brown‐headed cowbirds (Molothrus ater) at five study sites in northwestern Minnesota to evaluate the feasibility of using plasma and brain cholinesterase (ChE) activity and reactivation as a means of assessing exposure of nontarget organisms...
Authors
Pamela F. McInnes, David E. Andersen, Dale J. Hoff, Michael J. Hooper, L. K. Kinkel
Science and Products
Filter Total Items: 64
Seasonal productivity in a population of migratory songbirds: why nest data are not enough Seasonal productivity in a population of migratory songbirds: why nest data are not enough
Population models for many animals are limited by a lack of information regarding juvenile survival. In particular, studies of songbird reproductive output typically terminate with the success or failure of nests, despite the fact that adults spend the rest of the reproductive season rearing dependent fledglings. Unless fledgling survival does not vary, or varies consistently with nest
Authors
Henry M. Streby, David E. Andersen
Modeling survival and movement of resident giant Canada goose populations in the Atlantic flyway Modeling survival and movement of resident giant Canada goose populations in the Atlantic flyway
Distribution of resident giant Canada geese (Branta canadensis maxima) has changed markedly in the Atlantic Flyway in recent decades. This change may be related to habitat variation or to changes in hunting regulations. We attempt to assess impacts of hunting regulations on survival, movement, and harvest rate of Canada goose populations from Maine to South Carolina. During 15 June-31...
Authors
M.W. Miller, W. L. Kendall, J.B. Hestbeck
Red-shouldered hawk broadcast surveys: Factors affecting detection of responses and population trends Red-shouldered hawk broadcast surveys: Factors affecting detection of responses and population trends
Forest-nesting raptors are often difficult to detect and monitor because they can be secretive, and their nests can be difficult to locate. Some species, however, respond to broadcasts of taped calls, and these responses may be useful both in monitoring population trends and in locating nests. We conducted broadcast surveys on roads and at active red-shouldered hawk (Buteo lineatus)...
Authors
Mary Anne McLeod, David E. Andersen
Monitoring exposure of nestling songbirds to agricultural application of an organophosphorus insecticide using cholinesterase activity Monitoring exposure of nestling songbirds to agricultural application of an organophosphorus insecticide using cholinesterase activity
In June 1992 we collected 53 blood plasma samples from nestling red‐winged blackbirds (Agelaius phoeniceus), house sparrows (Passer domesticus), and brown‐headed cowbirds (Molothrus ater) at five study sites in northwestern Minnesota to evaluate the feasibility of using plasma and brain cholinesterase (ChE) activity and reactivation as a means of assessing exposure of nontarget organisms...
Authors
Pamela F. McInnes, David E. Andersen, Dale J. Hoff, Michael J. Hooper, L. K. Kinkel