Deanna Dawson
Deanna is a emeritus with the Eastern Ecological Science Center located at Laurel, MD.
An experienced field ornithologist, her current research uses remote sensing techniques to sample the spatiotemporal distribution of birds, primarily during migration periods. She collaborates in research that analyzes data from weather surveillance radars to map the densities of nocturnal migrants at daytime stopover sites, and uses acoustic data to quantify and model the abundance of migrants aloft. She also works on methods to estimate animal densities from sounds recorded on microphone arrays, applying them to recordings of bird song made across the Patuxent Research Refuge during the nesting season.
Science and Products
Filter Total Items: 54
Using radar to advance migratory bird management: An interagency collaboration Using radar to advance migratory bird management: An interagency collaboration
Migratory birds face many changes to the landscapes they traverse and the habitats they use. Wind turbines and communications towers, which pose hazards to birds and bats in flight, are being erected across the United States and offshore. Human activities can also destroy or threaten habitats critical to birds during migratory passage, and climate change appears to be altering migratory...
Authors
R. Sojda, J. M. Ruth, W.C. Barrow, D.K. Dawson, R.H. Diehl, A. Manville, M.T. Green, D.J. Krueper, S. Johnston
Predicting bird response to alternative management scenarios on a ranch in Campeche, Mexico Predicting bird response to alternative management scenarios on a ranch in Campeche, Mexico
We developed models to predict the potential response of wintering Neotropical migrant and resident bird species to alternative management scenarios, using data from point counts of birds along with habitat variables measured or estimated from remotely sensed data in a Geographic Information System. Expected numbers of occurrences at points were calculated for 100 species of birds, under...
Authors
P.A. Wood, D.K. Dawson, J.R. Sauer, M.H. Wilson
How we can learn more about the Cerulean Warbler (Dendroica cerulea) How we can learn more about the Cerulean Warbler (Dendroica cerulea)
A sense of urgency attends the study of species of concern, like the Cerulean Warbler (Dendroica cerulea). Sharpened by Robbins et al. (1992) and Hamel (1992), such concern prompted the U.S. Department of the Interior, Fish and Wildlife Service (USFWS) to commission a status assessment of the Cerulean Warbler (Hamel 2000a). Shortly after the status review was published, a petition (Ruley...
Authors
P.B. Hamel, D.K. Dawson, P.D. Keyser
Atlantic Flyway review: Region IV - Fall 2003: Patuxent powerline right-of-way (390-0764) Atlantic Flyway review: Region IV - Fall 2003: Patuxent powerline right-of-way (390-0764)
The station was operated on fewer days than usual in 2003, opening a bit later, closing a week early, and missing several good days in September through mid-October, when the manager/lead bander was conducting research on migrating birds in Lower Delmarva. As a result, capture totals for many species are not comparable to other years, and totals for several species, including House Wren...
Authors
Deanna K. Dawson
Modeling abundance effects in distance sampling Modeling abundance effects in distance sampling
Distance-sampling methods are commonly used in studies of animal populations to estimate population density. A common objective of such studies is to evaluate the relationship between abundance or density and covariates that describe animal habitat or other environmental influences. However, little attention has been focused on methods of modeling abundance covariate effects in...
Authors
J. Andrew Royle, D.K. Dawson, S. Bates
DENSITY: software for analysing capture-recapture data from passive detector arrays DENSITY: software for analysing capture-recapture data from passive detector arrays
A general computer-intensive method is described for fitting spatial detection functions to capture-recapture data from arrays of passive detectors such as live traps and mist nets. The method is used to estimate the population density of 10 species of breeding birds sampled by mist-netting in deciduous forest at Patuxent Research Refuge, Laurel, Maryland, U.S.A., from 1961 to 1972...
Authors
M.G. Efford, D.K. Dawson, C.S. Robbins
Science and Products
Filter Total Items: 54
Using radar to advance migratory bird management: An interagency collaboration Using radar to advance migratory bird management: An interagency collaboration
Migratory birds face many changes to the landscapes they traverse and the habitats they use. Wind turbines and communications towers, which pose hazards to birds and bats in flight, are being erected across the United States and offshore. Human activities can also destroy or threaten habitats critical to birds during migratory passage, and climate change appears to be altering migratory...
Authors
R. Sojda, J. M. Ruth, W.C. Barrow, D.K. Dawson, R.H. Diehl, A. Manville, M.T. Green, D.J. Krueper, S. Johnston
Predicting bird response to alternative management scenarios on a ranch in Campeche, Mexico Predicting bird response to alternative management scenarios on a ranch in Campeche, Mexico
We developed models to predict the potential response of wintering Neotropical migrant and resident bird species to alternative management scenarios, using data from point counts of birds along with habitat variables measured or estimated from remotely sensed data in a Geographic Information System. Expected numbers of occurrences at points were calculated for 100 species of birds, under...
Authors
P.A. Wood, D.K. Dawson, J.R. Sauer, M.H. Wilson
How we can learn more about the Cerulean Warbler (Dendroica cerulea) How we can learn more about the Cerulean Warbler (Dendroica cerulea)
A sense of urgency attends the study of species of concern, like the Cerulean Warbler (Dendroica cerulea). Sharpened by Robbins et al. (1992) and Hamel (1992), such concern prompted the U.S. Department of the Interior, Fish and Wildlife Service (USFWS) to commission a status assessment of the Cerulean Warbler (Hamel 2000a). Shortly after the status review was published, a petition (Ruley...
Authors
P.B. Hamel, D.K. Dawson, P.D. Keyser
Atlantic Flyway review: Region IV - Fall 2003: Patuxent powerline right-of-way (390-0764) Atlantic Flyway review: Region IV - Fall 2003: Patuxent powerline right-of-way (390-0764)
The station was operated on fewer days than usual in 2003, opening a bit later, closing a week early, and missing several good days in September through mid-October, when the manager/lead bander was conducting research on migrating birds in Lower Delmarva. As a result, capture totals for many species are not comparable to other years, and totals for several species, including House Wren...
Authors
Deanna K. Dawson
Modeling abundance effects in distance sampling Modeling abundance effects in distance sampling
Distance-sampling methods are commonly used in studies of animal populations to estimate population density. A common objective of such studies is to evaluate the relationship between abundance or density and covariates that describe animal habitat or other environmental influences. However, little attention has been focused on methods of modeling abundance covariate effects in...
Authors
J. Andrew Royle, D.K. Dawson, S. Bates
DENSITY: software for analysing capture-recapture data from passive detector arrays DENSITY: software for analysing capture-recapture data from passive detector arrays
A general computer-intensive method is described for fitting spatial detection functions to capture-recapture data from arrays of passive detectors such as live traps and mist nets. The method is used to estimate the population density of 10 species of breeding birds sampled by mist-netting in deciduous forest at Patuxent Research Refuge, Laurel, Maryland, U.S.A., from 1961 to 1972...
Authors
M.G. Efford, D.K. Dawson, C.S. Robbins