Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16744
Statistical analyses make the Christmas Bird Count relevant for conservation Statistical analyses make the Christmas Bird Count relevant for conservation
No abstract available.
Authors
J.R. Sauer, W.A. Link, D.K. Niven
Marsupials from Argentina: Comments on Ojeda and Monjeau (1995) Marsupials from Argentina: Comments on Ojeda and Monjeau (1995)
No abstract available.
Authors
M.C. Pinto, Afred L. Gardner
Hierarchial mark-recapture models: a framework for inference about demographic processes Hierarchial mark-recapture models: a framework for inference about demographic processes
The development of sophisticated mark-recapture models over the last four decades has provided fundamental tools for the study of wildlife populations, allowing reliable inference about population sizes and demographic rates based on clearly formulated models for the sampling processes. Mark-recapture models are now routinely described by large numbers of parameters. These large models...
Authors
W.A. Link, R. J. Barker
Contaminant exposure and reproductive success of Ospreys (Pandion haliaetus) nesting in Chesapeake Bay regions of concern Contaminant exposure and reproductive success of Ospreys (Pandion haliaetus) nesting in Chesapeake Bay regions of concern
The Chesapeake Bay osprey population has more than doubled in size since restrictions were placed on the production and use of DDT and other toxic organochlorine contaminants in the 1970s. Ospreys are now nesting in the most highly polluted portions of the Bay. In 2000 and 2001, contaminant exposure and reproduction were monitored in ospreys nesting in regions of concern, including...
Authors
Barnett A. Rattner, P. C. McGowan, N. H. Golden, Jeff S. Hatfield, P. C. Toschik, R.F. Lukei, R. C. Hale, I. Schmitz-Afonso, C.P. Rice
Population dynamics of the California Spotted Owl (Strix occidentalis occidentalis): a meta-analysis Population dynamics of the California Spotted Owl (Strix occidentalis occidentalis): a meta-analysis
We conducted a meta-analysis to provide a current assessment of the population characteristics of California Spotted Owls (Strix occidentalis occidentalis) resident on four study areas in the Sierra Nevada and one study area in southern California. Our meta-analysis followed rigorous a priori analysis protocols, which we derived through extensive discussion during a week-long analysis...
Authors
A.B. Franklin, R. J. Gutierrez, J.D. Nichols, M.E. Seamans, Gary C. White, G.S. Zimmerman, J.E. Hines, T.E. Munton, W.S. LaHaye, J.A. Blakesley, G.N. Steger, B.R. Noon, D.W.H. Shaw, J.J. Keane, T. L. McDonald, S. Britting
Occupancy estimation and modeling for rare and elusive populations Occupancy estimation and modeling for rare and elusive populations
No abstract available.
Authors
D.I. MacKenzie, J. Andrew Royle, J.A. Brown, J.D. Nichols
Some consequences of using counts of birds banded as indices to populations Some consequences of using counts of birds banded as indices to populations
In mist-net studies, it is often difficult to use capture-recapture methods to estimate number of birds present. Many investigators use number of birds captured as an index of population size. We investigate the consequences of using indices of bird abundance as surrogates for population size in hypothesis tests. Unless all of the birds present are captured, indices are biased estimates...
Authors
J.R. Sauer, W.A. Link
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
Environmental impacts associated with recreational horse riding Environmental impacts associated with recreational horse riding
No abstract available.
Authors
D.E. Newsome, D.N. Cole, J. L. Marion
Blake Plateau basin extension: combined crustal thinning and dike intrusion Blake Plateau basin extension: combined crustal thinning and dike intrusion
No abstract available.
Authors
F.K.A. McKinney, B. Ann Swift, D. S. Sawyer, K.M. Kent, William P. Dillon
Water resources data, Ohio, water year 2003 : Volume 1. Ohio River basin excluding project data Water resources data, Ohio, water year 2003 : Volume 1. Ohio River basin excluding project data
Water-resources data for the 2003 water year for Ohio consist of records of stage, discharge, and water quality of streams; stage and contents of lakes and reservoirs; and water levels and water quality of ground-water wells. This report, in two volumes, contains records for water discharge at 138 gaging stations and various partial-record sites; water levels at 217 observation wells and...
Authors
H.L. Shindel, J.P. Mangus, S.R. Frum
Time-series photographs of the sea floor in western Massachusetts Bay: June 1997 to June 1998 Time-series photographs of the sea floor in western Massachusetts Bay: June 1997 to June 1998
This report presents time-series photographs of the sea floor obtained from an instrumented tripod deployed at Site A in western Massachusetts Bay (42° 22.6' N., 70? 47.0' W., 30 m water depth, from June 1997 through June 1998. Site A is approximately 1 km south of an ocean outfall that began discharging treated sewage effluent from the Boston metropolitan area into Massachusetts Bay in...
Authors
Bradford Butman, P. Soupy Alexander, Michael H. Bothner