Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16746
Reproductive biology of the green turtle (Chelonia mydas) at Tern Island, French Frigate Shoals, Hawai`i Reproductive biology of the green turtle (Chelonia mydas) at Tern Island, French Frigate Shoals, Hawai`i
We monitored nesting of the green turtle (Chelonia mydas Linnaeus) on Tern Island, French Frigate Shoals, in the Northwestern Hawaiian Islands from 1986 through 1991. Egg oviposition occurred between 26 April and 20 October. Nesting peaked between mid-June and early August. Hatchlings emerged between mid-August and early October. Mean incubation period was 66.0 (range 53-97) days. Mean...
Authors
K. R. Niethammer, G.H. Balazs, Jeff S. Hatfield, G.L. Nakai, J.L. Megyesi
An assessment of campsite conditions in Great Smoky Mountains National Park An assessment of campsite conditions in Great Smoky Mountains National Park
This research effort designed and implemented a backcountry campsite monitoring program for Great Smoky Mountains National Park (GSMNP). This report reviews the need for visitor impact monitoring programs, describes monitoring procedures developed and applied at GSMNP, presents results from the first monitoring cycle, evaluates current park camping management policies, and provides
Authors
J. L. Marion, Y-L Leung
Population trends of black ducks and mallards from the North American Breeding Bird Survey: Are increases in mallards associated with declines in black ducks? Population trends of black ducks and mallards from the North American Breeding Bird Survey: Are increases in mallards associated with declines in black ducks?
No abstract available.
Authors
J.R. Sauer, Sam Droege
Comparative productivity of American black ducks and mallards breedings on the Chesapeake Bay Comparative productivity of American black ducks and mallards breedings on the Chesapeake Bay
No abstract available.
Authors
D.G. Krementz, Daniel B. Stotts, Vernon D. Stotts, G.W. Pendleton
Reproductive strategies for coping with poor conditions: responses of roseate terns to low food availability during the egg-laying period at Falkner Island, Connecticut Reproductive strategies for coping with poor conditions: responses of roseate terns to low food availability during the egg-laying period at Falkner Island, Connecticut
No abstract available.
Authors
J. A. Spendelow, James M. Zingo, Jeff S. Hatfield
Growth and fledgling of roseate terns in exceptionally 'good' and 'poor' years of overall productivity Growth and fledgling of roseate terns in exceptionally 'good' and 'poor' years of overall productivity
No abstract available.
Authors
J. A. Spendelow, James M. Zingo, D. A. Shealer, G.W. Pendleton
Recent numerical changes in North American roseate terns and their conjectured cause Recent numerical changes in North American roseate terns and their conjectured cause
No abstract available.
Authors
J.J. Hatch, J. A. Spendelow, J.D. Nichols, J.E. Hines
Survival and fates of staging juvenile, female mallards in the Vermont / Quebec border region Survival and fates of staging juvenile, female mallards in the Vermont / Quebec border region
We alternately marked 80 juvenile, female mallards (Anas platyrhynchos), half with transmitters and bands and half with only bands in 1990 and 1991. Survival of radio-marked ducks was monitored daily and then summarized weekly for the periods 31 August - 6 December, 1990 (weeks 5-18) and 11 September - 6 December, 1991) (weeks 6-18). The pattern of survival throughout the staging period...
Authors
J. R. Longcore, D.G. McAuley, C.M. Bunck
Optimal management strategies for biodiversity within a powerline right-of-way Optimal management strategies for biodiversity within a powerline right-of-way
Management techniques used to control vegetation along a new 8.5 km- (5.3 mile) long powerline right-of-way located at Patuxent Research Refuge are being evaluated to identify changes in habitat that affect wildlife. Techniques include: complete mow, strip mow, low volume foliar spray, selective basal spray, and tree topping. One hundred and one bird species were recorded during line...
Authors
Matthew C. Perry, P.C. Osenton, F.W. Fallon, J.E. Fallon
Bottomland forest composition and seedling diversity Bottomland forest composition and seedling diversity
No abstract available.
Authors
S.W. Seagle, S-Y. Liang
Effects of forest management on population parameters and habitat use of wood thrushes. Final Report Effects of forest management on population parameters and habitat use of wood thrushes. Final Report
No abstract available.
Authors
M.J. Conroy, D.G. Krementz, L.A. Powell, J. D. Lang
Physical processes affecting the sedimentary environments of Long Island Sound Physical processes affecting the sedimentary environments of Long Island Sound
A modeling study was undertaken to simulate the bottom tidal-, wave-, and wind-driven currents in Long Island Sound in order to provide a general physical oceanographic framework for understanding the characteristics and distribution of seafloor sedimentary environments. Tidal currents are important in the funnel-shaped eastern part of the Sound, where a strong gradient of tidal-current...
Authors
R. P. Signell, H.J. Knebel, J. H. List, A.S. Farris