Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16739
Annual movements of shortnose and Atlantic sturgeons the Merrimack River, Massachusetts Annual movements of shortnose and Atlantic sturgeons the Merrimack River, Massachusetts
No abstract available.
Authors
M.C. Kieffer, B. Kynard
Detection of fish pathogens Detection of fish pathogens
No abstract available.
Authors
J. Buttner, P. Chang, P. Bowser, F. Hetrick, P. McAllister, B. Nicholson, P. Reno
Antarctic glacier-tongue velocities from Landsat images: First results Antarctic glacier-tongue velocities from Landsat images: First results
We measured the velocities of six glacier tongues and a few tongues within ice shelves distributed around the Antarctic coastline by determining the displacement of crevasse patterns seen on sequential Landsat images. The velocities range from less than 0.2 km a−1 for East Antarctic ice-shelf tongues to more than 2.5 km a−1 for the Thwaites Glacier Tongue. All glacier tongues show...
Authors
Baerbel K. Lucchitta, K.F. Mullins, A.L. Allison, Jane G. Ferrigno
Influence of phosphorus rainbow trout diets on phosphorus discharges effluent water Influence of phosphorus rainbow trout diets on phosphorus discharges effluent water
No abstract available.
Authors
H. G. Ketola, B.F. Harland
Morphological, biochemical, and histopathological indices and contaminant burdens of cotton rats (Sigmodon hispidus) at three hazardous waste sites near Houston, Texas, USA Morphological, biochemical, and histopathological indices and contaminant burdens of cotton rats (Sigmodon hispidus) at three hazardous waste sites near Houston, Texas, USA
Male cotton rats (Sigmodon hispidus) were studied at three industrial waste sites near Houston, Texas, to determine whether various morphological, biochemical, and histopathological indices provided evidence of contaminant exposure and toxic insult. Only modest changes were detected in cotton rats residing at waste sites compared with reference sites. No single parameter was consistently...
Authors
Barnett A. Rattner, Edward L. Flickinger, D. J. Hoffman
Primer registro de Eumops underwoodi (Molossidae) de Costa Rica Primer registro de Eumops underwoodi (Molossidae) de Costa Rica
No abstract available.
Authors
M.S. Foster, R. Aguilar
Effects of dietary aluminum, calcium, and phosphorus on egg and bone of European starlings Effects of dietary aluminum, calcium, and phosphorus on egg and bone of European starlings
Egg and bone of passerine birds nesting in acidified habitats may be affected by high levels of Al or P, or low levels of Ca. Nine treatments of three levels of dietary Al (target levels of 200, 1,000, and 5,000 μg/g) and three levels of Ca:P (target levels of NN = 1.3% Ca: 0.9% P; LL = 0.19 Ca:0.45 P; LH = 0.19 Ca: 1.65 P) were fed to 16–17 starling pairs during two breeding seasons...
Authors
A.K. Miles, C.E. Grue, G.W. Pendleton, J. H. Soares
Avian communities in riparian forests of different widths in Maryland and Delaware Avian communities in riparian forests of different widths in Maryland and Delaware
In agricultural landscapes, much of the remaining forest is in linear tracts along streams. These riparian forests provide habitat for forest birds, but their use by forest interior birds may depend on forest width. We conducted point-count surveys of birds in riparian forests on the Eastern shore of Maryland and Delaware to assess whether the presence of any species was dependent on...
Authors
C.M.E. Keller, C.S. Robbins, Jeff S. Hatfield
The tools of the trade--library enhancement in developing countries The tools of the trade--library enhancement in developing countries
No abstract available.
Authors
M.S. Foster, M.A. Jenkinson, A. Allen
Recent distribution and status of nesting bald eagles in Baja California, Mexico Recent distribution and status of nesting bald eagles in Baja California, Mexico
We studied Bald Eagles(Haliaeetus leucocephalus) nesting in Baja California, Mexico, and vicinity from 1983-1993. The range of nesting Bald Eagles in Baja California has been reduced from a scattering of pairs along both the Pacific and Gulf sides to a remnant population in Magdalena Bay where no more than three pairs were found annually. Low numbers and a restricted distribution make...
Authors
Charles J. Henny, B. Conant, D. W. Anderson
A new species of a giant Thomasomys (Mammalia, Muridae, Sigmodontinae) from the Andes of north-central Per? A new species of a giant Thomasomys (Mammalia, Muridae, Sigmodontinae) from the Andes of north-central Per?
No abstract available.
Authors
L.M. Leo, A. L. Gardner
Capture-recapture studies for multiple strata including non-markovian transitions Capture-recapture studies for multiple strata including non-markovian transitions
We consider capture-recapture studies where release and recapture data are available from each of a number of strata on every capture occasion. Strata may, for example, be geographic locations or physiological states. Movement of animals among strata occurs with unknown probabilities, and estimation of these unknown transition probabilities is the objective. We describe a computer...
Authors
C. Brownie, J.E. Hines, J.D. Nichols, K. H. Pollock, J.B. Hestbeck