Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16731
Evidence from Lake Baikal for Siberian glaciation during oxygen-isotope substage 5d Evidence from Lake Baikal for Siberian glaciation during oxygen-isotope substage 5d
The paleoclimatic record from bottom sediments of Lake Baikal (eastern Siberia) reveals new evidence for an abrupt and intense glaciation during the initial part of the last interglacial period (isotope substage 5d). This glaciation lasted about 12 000 yr from 117 000 to 105 000 yr BP according to correlation with the SPEC-MAP isotope chronology. Lithological and biogeochemical evidence...
Authors
E.B. Karabanov, A.A. Prokopenko, D. F. Williams, Steven M. Colman
Movement, migration, and smolting of Atlantic salmon (Salmo salar) Movement, migration, and smolting of Atlantic salmon (Salmo salar)
No abstract available.
Authors
S. D. McCormick, Lonnie P. Hansen, T.P. Quinn, R.L. Saunders
Ecological and evolutionary concerns in freshwater bivalve relocation programs Ecological and evolutionary concerns in freshwater bivalve relocation programs
No abstract available.
Authors
R.F. Villella, T.L. King, C.L. Starliper
Maturation of male age-0 Atlantic salmon following a massive, localized flood Maturation of male age-0 Atlantic salmon following a massive, localized flood
Maturation of male age-0 Atlantic salmon Salmo salar parr in New England, U.S.A. streams is rare (˜5%), but age-0 parr maturation was high (74%) by autumn in the Sawmill River following a massive, localized flood. Maturation was low in two other study streams (3, 7%) in the same year as the flood, and in the Sawmill River (6%) and the other rivers (5%) in the subsequent year, suggesting...
Authors
B.H. Letcher, T.D. Terrick
An individual-based, spatially-explicit simulation model of the population dynamics of the endangered red-cockaded woodpecker, Picoides borealis An individual-based, spatially-explicit simulation model of the population dynamics of the endangered red-cockaded woodpecker, Picoides borealis
Spatially-explicit population models allow a link between demography and the landscape. We developed a spatially-explicit simulation model for the red-cockaded woodpecker, Picoides borealis, an endangered and territorial cooperative breeder endemic to the southeastern United States. This kind of model is especially appropriate for this species because it can incorporate the spatial...
Authors
B.H. Letcher, J.A. Priddy, J. R. Walters, L.B. Crowder
Occurrence of Loma cf salmonae brook, brown and rainbow trout from Buford Trout Hatchery, Georgia, USA Occurrence of Loma cf salmonae brook, brown and rainbow trout from Buford Trout Hatchery, Georgia, USA
During a 6 mo study of moribund trout from Buford hatchery, Buford, Georgia, USA, a Loma cf. salmonae microsporidian parasite was studied in the gills of brook trout Salvelinus fontinalis, brown trout Salmo trutta, and rainbow trout Oncorhynchus mykiss. This parasite was morphologically similar to L. salmonae and L. fontinalis but differed in spore size. Scanning and transmission...
Authors
J.A. Bader, E. B. Shotts, W.L. Steffens, J. Lom
Sequence comparison of sulphonamide resistance genes from Aeromonas salmonicida, Edwardsiella ictaluri, and Escherichia coli Sequence comparison of sulphonamide resistance genes from Aeromonas salmonicida, Edwardsiella ictaluri, and Escherichia coli
No abstract available.
Authors
S. Rodgers, C. E. Starliper, R. Cooper
The Chesapeake Bay bolide: Modern consequences of an ancient cataclysm The Chesapeake Bay bolide: Modern consequences of an ancient cataclysm
During the late Eocene, the formerly quiescent geological regime of the Virginia Coastal Plain was dramatically transformed when a bolide struck in the vicinity of the Delmarva Peninsula, and produced the following principal consequences:The bolide carved a roughly circular crater twice the size of the state of Rhode Island (~6400 km2), and nearly as deep as the Grand Canyon (1.3 km deep...
Authors
C. Wylie Poag
Introduction: Long-term ecological sustainability of wetlands in urbanizing landscapes Introduction: Long-term ecological sustainability of wetlands in urbanizing landscapes
No abstract available.
Authors
G.R. Guntenspergen, C.P. Dunn
Tick population trends and forest type Tick population trends and forest type
No abstract available.
Authors
H. S. Ginsberg, Kerwin E. Hyland, Renjie Hu, T.J. Daniels, R.C. Falco
Possible mechanisms for sensitivity to organophosphorus and carbamate insecticides in eastern screech-owls and American kestrels Possible mechanisms for sensitivity to organophosphorus and carbamate insecticides in eastern screech-owls and American kestrels
Effects of a single dietary exposure to fenthion and carbofuran on the survival, feeding behavior and brain ChE activity of eastern screech-owls, Otus asio and American kestrels, Falco sparverius, were evaluated. Birds were exposed to fenthion (23.6–189.0 ppm) or carbofuran (31.7–253.6 ppm) via meatballs. Carbofuran-exposed owls ate either ≤10% or ≥80% of the meatball whereas all...
Authors
N.B. Vyas, L.A. Thiele, S.C. Garland