Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16743
Observations of health indices used to monitor a tailwater trout fishery Observations of health indices used to monitor a tailwater trout fishery
Health of the population of rainbow trout Oncorhynchus mykiss in the San Juan River tailwater was monitored to determine the effects of potential crowding from a reduced winter flow test at Navajo Dam, northwestern New Mexico. A systematic necropsy-based health profile provided a rapid method to detect gross changes in the health of the fish population. The health assessment index (HAI)...
Authors
R.J. Sutton, C.A. Caldwell, V. S. Blazer
The effects of egg oiling on fish consumption by double-crested cormorants on Little Galloo Island, Lake Ontario The effects of egg oiling on fish consumption by double-crested cormorants on Little Galloo Island, Lake Ontario
No abstract available at this time
Authors
J. H. Johnson, R. M. Ross, J. Farquhar
Modeling surface trapped river plumes: A sensitivity study Modeling surface trapped river plumes: A sensitivity study
To better understand the requirements for realistic regional simulation of river plumes in the Gulf of Maine, we test the sensitivity of the Blumberg-Mellor hydrodynamic model to choice of advection scheme, grid resolution, and wind, using idealized geometry and forcing. The test case discharges 1500 m3/s of fresh water into a uniform 32 psu ocean along a straight shelf at 43?? north...
Authors
Jason Hyatt, Richard P. Signell
Calcium depletion in a Southeastern United States forest ecosystem Calcium depletion in a Southeastern United States forest ecosystem
Forest soil Ca depletion through leaching and vegetation uptake may threaten long-term sustainability of forest productivity in the southeastern USA. This study was conducted to assess Ca pools and fluxes in a representative southern Piedmont forest to determine the soil Ca depletion rate. Soil Ca storage, Ca inputs in atmospheric deposition, and outputs in soil leaching and vegetation...
Authors
T.G. Huntington, R. P. Hooper, C.E. Johnson, Brent T. Aulenbach, R. Cappellato, A.E. Blum
Behavior and passage of silver-phase American eels, Anguilla rostrata (LeSueur), at a small hydroelectric facility Behavior and passage of silver-phase American eels, Anguilla rostrata (LeSueur), at a small hydroelectric facility
No abstract available.
Authors
Alex Haro, Ted Castro-Santos, Jacques Boubee
Evaluating immunocontraception for managing suburban white-tailed deer in Irondequoit, New York Evaluating immunocontraception for managing suburban white-tailed deer in Irondequoit, New York
Immunocontraception is frequently proposed as an alternative to lethal removal of females for deer management. However, little information is available for evaluating the potential of applying immunocontraceptives to free-ranging populations. Our objectives were to estimate effort required to apply porcine zona pellucida (PZP) to individual deer and assess the utility of using...
Authors
B.A. Rudolph, W.F. Porter, H.B. Underwood
Consideraciones para la estimacion de abundancia de poblaciones de mamiferos. [Considerations for the estimation of abundance of mammal populations.] Consideraciones para la estimacion de abundancia de poblaciones de mamiferos. [Considerations for the estimation of abundance of mammal populations.]
Estimation of abundance of mammal populations is essential for monitoring programs and for many ecological investigations. The first step for any study of variation in mammal abundance over space or time is to define the objectives of the study and how and why abundance data are to be used. The data used to estimate abundance are count statistics in the form of counts of animals or their...
Authors
R.S. Walker, A.J. Novare, J.D. Nichols
Inferences about nested subsets structure when not all species are detected Inferences about nested subsets structure when not all species are detected
Comparisons of species composition among ecological communities of different size have often provided evidence that the species in communities with lower species richness form nested subsets of the species in larger communities. In the vast majority of studies, the question of nested subsets has been addressed using information on presence-absence, where a '0' is interpreted as the...
Authors
E. Cam, J.D. Nichols, J.E. Hines, J.R. Sauer
New Jersey Bird Records Committee - Annual Report, 2000 New Jersey Bird Records Committee - Annual Report, 2000
No abstract available.
Authors
L. Larson, P. Lehman, P. A. Buckley, J. Burgiel, M. O'Brien
Piping Plover brood foraging ecology on New York barrier islands Piping Plover brood foraging ecology on New York barrier islands
Effective management of piping plover (Charadrius melodus) populations requires knowledge of the habitats that foster successful reproduction. We studied piping plover chick foraging ecology and survival on the central barrier islands of Long Island, New York, 1992 and 1993. Within the 90-km study area, all 1-km beach segments with ephemeral pools or bay tidal flats were used for nesting...
Authors
S.P. Elias, J.D. Fraser, P. A. Buckley
Influence of inner-continental shelf geologic framework on the evolution and behavior of the barrier-island system between Fire Island Inlet and Shinnecock Inlet, Long Island, New York Influence of inner-continental shelf geologic framework on the evolution and behavior of the barrier-island system between Fire Island Inlet and Shinnecock Inlet, Long Island, New York
High-resolution, sea-floor mapping techniques, including sidescan-sonar and subbottom profiling, were used to investigate how the geologic framework of the inner-continental shelf influenced the Holocene evolution and modern behavior of the Fire Island barrier-island system, Long Island, New York. The inner-continental shelf off Long Island is divided into two physiographic provinces by...
Authors
W. C. Schwab, E.R. Thieler, J.R. Allen, D.S. Foster, B.A. Swift, J. F. Denny
Plethodon cinereus (Redback Salamander) predation Plethodon cinereus (Redback Salamander) predation
In 1999 at the Patuxent Research Refuge, we observed a large rove beetle (Staphylinus maculosus) consuming an eviscerated redback salamander (Plethodon cinereus) underneath a coverboard. Rove beetles typically eat invertebrates.
Authors
R.E. Jung, W.L. Ward, C.O. Kings, L.A. Weir