Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16909
Modified level II streambed-scour analysis for structure I-65-120-6016 crossing Little Eagle Creek and I-65 in Marion County, Indiana Modified level II streambed-scour analysis for structure I-65-120-6016 crossing Little Eagle Creek and I-65 in Marion County, Indiana
Level II scour evaluations follow a process in which hydrologic, hydraulic, and sedient-transport data are evaluated to calculate the depth of scour that may result when given discharge is routed through a bridge opening. the results of the modified Levell II analysis for structure I-65-120-6016 on Georgetown Road crossing Little Eagle Creek and 1-65 in Marion County, Indiana, are...
Authors
R. L. Miller, B.A. Robinson, D. C. Voelker
Modified level II streambed-scour analysis for structure I-69-64-4767 crossing Tippey Ditch in Grant County, Indiana Modified level II streambed-scour analysis for structure I-69-64-4767 crossing Tippey Ditch in Grant County, Indiana
Level II scour evaluations follow a process in which hydrologic, hydraulic, and sediment transport data are evaluated to calculate the depth of scour that may result when a given discharge is routed through a bridge opening. The results of the modified Level II analysis for structure 1-69-64-4767 on Interstate 69 crossing Tippey Ditch in Grant County, Indiana, are presented. The site is...
Authors
B.A. Robinson, D. C. Voelker, R. L. Miller
Exploration Exploration
This summary of international nonfuel mineral exploration activities for 1996 uses available data from literature, industry, and US Geological Survey (USGS) specialists. Data on exploration budgets by region and commodity are reported, significant mineral discoveries and exploration target areas are identified and government programs affecting the mineral exploration industry are...
Authors
D.R. Wilburn
A closer look: Kirtland's warbler A closer look: Kirtland's warbler
No abstract available.
Authors
P.W. Sykes
An example of endurance in an old wolf, Canis lupus An example of endurance in an old wolf, Canis lupus
An 11 to 13-year-old Arctic Wolf (Canis lupus arctos) was observed chasing a young Arctic Hare (Lepus arcticus) for 6 to 7 minutes and catching it. This provides an example of the degree of endurance of which an old wolf is capable.
Authors
L.D. Mech
The potential of fruiting trees for habitat enhancement The potential of fruiting trees for habitat enhancement
No abstract available.
Authors
M.S. Foster
The Chesapeake Bay bolide impact: A convulsive event in Atlantic Coastal Plain evolution The Chesapeake Bay bolide impact: A convulsive event in Atlantic Coastal Plain evolution
Until recently, Cenozoic evolution of the Atlantic Coastal Plain has been viewed as a subcyclical continuum of deposition and erosion. Marine transgressions alternated with regressions on a slowly subsiding passive continental margin, their orderly succession modified mainly by isostatic adjustments, occasional Appalachian tectonism, and paleoclimatic change. This passive scenario was...
Authors
C. Wylie Poag
Subspecies composition of sandhill crane harvest in North Dakota, 1968-94 Subspecies composition of sandhill crane harvest in North Dakota, 1968-94
North Dakota is a major fall staging area for the Midcontinent Population of sandhill cranes (Grus canadensis), which is composed of three subspecies: the greater (G. c. tabida), Canadian (G. c. rowani), and lesser (G. c. canadensis). The number of cranes killed by hunters in North Dakota averaged 6,793 during 1990-94 seasons, ranking second highest among crane-hunting states. The...
Authors
W. L. Kendall, Douglas H. Johnson, S. C. Kohn
The effect of disturbance on the reproduction and management of captive cranes The effect of disturbance on the reproduction and management of captive cranes
No abstract available.
Authors
C.M. Mirande, J. W. Carpenter, A.M. Burke
Modeling the population dynamics of Gulf Coast sandhill cranes Modeling the population dynamics of Gulf Coast sandhill cranes
The Midcontinental population of sandhill cranes (Grus canadensis) has a large geographic range, contains nearly 500,000 birds, and is hunted in much of its range. The population includes three subspecies; the numbers of two of these are uncertain, and they should be afforded protection from hunting that would be detrimental to their population. The two subspecies of concern tend to...
Authors
Douglas H. Johnson, W. L. Kendall
Embryology, incubation, and hatching Embryology, incubation, and hatching
No abstract available.
Authors
Glenn H. Olsen, S.L. Clubb