Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16905
Outcome of aggressive interactions between American black ducks and mallards during the breeding season Outcome of aggressive interactions between American black ducks and mallards during the breeding season
American black duck (Anas rubripes) numbers have declined during the past several decades, while mallards (A. platyrhynchos) have expanded their range eastward. Competitive exclusion of black ducks from wetlands by mallards has been proposed as a principal cause of the decline. We studied a sympatric population of black ducks and mallards in Maine during the early breeding season to...
Authors
D.G. McAuley, D.A. Clugston, J. R. Longcore
Induction of cytochrome P450-associated monooxygenases in northern leopard frogs, Rana pipiens, by 3,3′,4,4′,5-Pentachlorobiphenyl Induction of cytochrome P450-associated monooxygenases in northern leopard frogs, Rana pipiens, by 3,3′,4,4′,5-Pentachlorobiphenyl
Northern leopard frogs (Rana pipiens) were injected intraperitoneally either with a solution of polychlorinated biphenyl (PCB) 126 in corn oil at a concentration of 0.2, 0.7, 2.3, or 7.8 mg/kg body weight or with corn oil alone. Appropriate assay conditions with hepatic microsomes were determined for four cytochrome P450-associated monooxygenases: ethoxyresorufin-O-dealkylase (EROD)...
Authors
Y.-W. Huang, M. J. Melancon, R.E. Jung, W. H. Karasov
Field evidence for linking Altosid applications with increased amphibian deformities in southern leopard frogs [abstract] Field evidence for linking Altosid applications with increased amphibian deformities in southern leopard frogs [abstract]
During the summer of 1997 we repeatedly sprayed Altosid, a formulation of 4% methoprene used for mosquito control, on six constructed macrocosms. Six additional macrocosms were sprayed with Abate4E, containing the organophosphate pesticide temephos, and six were sprayed with water (controls). The wetlands were created on an impermeable foundation for research purposes and averaged 215 m2...
Authors
D. W. Sparling
Water quality in the White River basin, Indiana, 1992-96 Water quality in the White River basin, Indiana, 1992-96
No abstract available.
Authors
Joseph M. Fenelon
Preliminary paleontologic report on cores 19A and 19B, from Russell Bank, Everglades National Park, Florida Bay Preliminary paleontologic report on cores 19A and 19B, from Russell Bank, Everglades National Park, Florida Bay
The fauna and flora preserved in two cores, 19A and 19B, from the south side of Russell Bank (N 25 03.831', W 80 37.486') in north-central Florida Bay, Everglades National Park, Florida, record a history of environmental change over the last century. The benthic foraminifera and molluscs indicate fluctuating salinities with increasing average salinity upcore in core 19B. Shifts from low...
Authors
G. L. Brewster-Wingard, S. E. Ishman, Debra A. Willard, Lucy E. Edwards, C. W. Holmes
Pliocene-Quaternary geology of northern New Jersey; road log and description of field stops, Sunday June 1, 1997 Pliocene-Quaternary geology of northern New Jersey; road log and description of field stops, Sunday June 1, 1997
No abstract available.
Authors
Ron W. Witte, Jack B. Epstein, John Wright
Pliocene-Quaternary geology of northern New Jersey: Guidebook - Annual reunion of the northeastern friends of the Pleistocene field conference Pliocene-Quaternary geology of northern New Jersey: Guidebook - Annual reunion of the northeastern friends of the Pleistocene field conference
No abstract available.
Authors
Ron W. Witte, Gail M. Ashley, Jack B. Epstein, Richard K. Shaw, John Wright, Scott D. Stanford
Sr-isotopic evidence for leakage of pore water from clay-silt confining units to the Atlantic City 800-foot sand, Atlantic City, New Jersey Sr-isotopic evidence for leakage of pore water from clay-silt confining units to the Atlantic City 800-foot sand, Atlantic City, New Jersey
The evolution of water quality in confined aquifers in the New Jersey Coastal Plain may be affected by leakage of pore water from the adjacent confining units. We investigated the distribution and sources of solutes, particularly Sr, in pore water mechanically extracted from clay-silt core samples collected from depths of 552–840 ft (168–256 m) in the lower Miocene Kirkwood Formation at...
Authors
Zoltan Szabo, A. A. Pucci, Mark D. Feigenson
Stratigraphy and regional significance of Mississippian to Jurassic rocks in Sierra Santa Teresa, Sonora, Mexico Stratigraphy and regional significance of Mississippian to Jurassic rocks in Sierra Santa Teresa, Sonora, Mexico
No abstract available.
Authors
John H. Stewart, Ricardo Amaya-Martinez, Robert G. Stamm, Bruce R. Wardlaw, George D. Stanley, Calvin H. Stevens
Effects of acidic deposition on water quality and forest health in Georgia Effects of acidic deposition on water quality and forest health in Georgia
Biogeochemical studies at the Panola Mountain Research Watershed near Atlanta, Ga., and in the Coastal Plain Province of Georgia have provided an assessment of some of the potential effects of acid deposition on streamwater quality and forest health in Georgia. Historically, "acid rain" has not been considered a potentially serious problem in the southeastern United States; however...
Authors
Thomas G. Huntington, R. P. Hooper
Heat flow and geothermal field in Siberia Heat flow and geothermal field in Siberia
No abstract available.
Authors
A.J. Golmshtok, A. Duchkov, D. R. Hutchinson, S.B. Khanukaev, A.I. El’nikov
Preliminary results of the first scientific Drilling on Lake Baikal, Buguldeika site, southeastern Siberia Preliminary results of the first scientific Drilling on Lake Baikal, Buguldeika site, southeastern Siberia
The Baikal Drilling Project (BDP) is a multinational effort to investigate the paleoclimatic history and tectonic evolution of the Baikal sedimentary basin during the Late Neogene. In March 1993 the Baikal drilling system was successfuly deployed from a barge frozen into position over a topographic high, termed the Buguldeika saddle, in the southern basin of Lake Baikal. The BDP-93...
Authors
Douglas F. Williams, S. Colman, M. Grachev, P. Hearn, Shoji Horie, T. Kawai, Mikhail I. Kuzmin, N. Logachov, V. Antipin, A. Bardardinov, A. Bucharov, V. Fialkov, A. Gorigljad, B. Tomilov, B.N. Khakhaev, S. Kochikov, N. Logachev, L.A. Pevzner, E.B. Karabanov, V. Mats, E. Baranova, O. Khlystov, E. Khrachenko, M. Shimaraeva, E. Stolbova, S. Efremova, A. Gvozdkov, A. Kravchinski, J. Peck, T. Fileva, S. Kashik, T. Khramtsova, I. Kalashnikova, T. Rasskazova, V. Tatarnikova, Richard Yuretich, V. Mazilov, K. Takemura, V. Bobrov, T. Gunicheva, H. Haraguchi, S. Ito, T. Kocho, M. Markova, V. Pampura, O. Proidakova, R. Ishiwatari, H. Sawatari, A. Takeuchi, K. Toyoda, S. Vorobieva, A. Ikeda, A. Marui, T. Nakamura, K. Ogura, Takeshi Ohta, J. King, H. Sakai, T. Yokoyama, A. Hayashida, E. Bezrukova, S. Fowell, N. Fujii, P. Letunova, V. Misharina, N. Miyoshi, G. Chernyaeva, I. Ignatova, E. Likhoshvai, L. Granina, O. Levina, P. Dolgikh, F. Lazo, N. Lutskaia, W. Orem, E. Wada, K. Yamada, S. Yamada, E. Callander, L. Golobokoval, W. C. Pat Shanks, R. Dorofeeva, A. Duchkov