Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16795
Increased population densities of Amblyomma americanum (Acari: Ixodidae) on Long Island, New York
Lone star ticks, Amblyomma americanum comprised a significantly greater proportion of total ticks flagged on eastern Long Island and Fire Island, New York, in 1986 and 1990 than in samples reported by other authors from the 1940s (when A. americanum was not collected by flagging or from hosts) and the 1970s. Therefore, population densities of A. americanum apparently have increased in recent years
Authors
H. S. Ginsberg, C.P. Ewing, A.F. O'Connell, E.M. Bosler, James G. Daley, M. W. Sayre
Predation by the brown tree snake, Boiga irregularis, on poultry and other domesticated animals in Guam
No abstract available.
Authors
T. H. Fritts, M.J. McCoid
Los saltarines y sus extraordinarios sistemas sociales de leks
No abstract available.
Authors
M.S. Foster
Resting metabolic rate of golden eagles, bald eagles, and barred owls harnessed with a tracking transmitter or an equivalent load
No abstract available.
Authors
J.A. Gessaman, M.R. Fuller, P.J. Pekins, G.E. Duke
Ectoparasitism and the role of green nesting material in the European starling
The use of green nesting material is wide-spread among birds. Recent evidence suggests that birds use secondary chemicals contained in green plants to control ectoparasites. We manipulated green nesting material and ectoparasites of European starlings (Sturnus vulgaris ) to test two hypotheses: (1) ectoparasites adversely affect prefledging survival and morphometrics or postfledging survival, an
Authors
P.T. Fauth, D.G. Krementz, J. E. Hines
Flight performance, energetics and water turnover of tippler pigeons with a harness and dorsal load
We measured carbon dioxide production and water efflux of 12 tippler pigeons (Columba spp.) during seven experimental flights using the doubly labeled water (DLW) method. Prior to the experiment birds were randomly assigned to one of two groups. One group flew as controls (no load or harness) on all seven flights. The other group wore a harness on two flights, a dorsal load/harness package (weighi
Authors
J.A. Gessaman, G.W. Workman, M.R. Fuller
Contaminant accumulation in marine birds wintering in Puget Sound
No abstract available.
Authors
C. J. Henny, L. J. Blus, R. A. Grove
Toxicity of trimethyltin and triethyltin to mallard ducklings
Trimethyltin chloride (TMTC) and triethyltin chloride (TETC) were fed to mallard (Anas platyrhynchos) ducklings for 73 to 75 d, beginning when ducklings were 3 to 4 d old. Diets were mixed to contain 0, 0.5, 5 or 50 ppm Sn as either TMTC or TETC. Mortality occurred only in the 5 ppm (2/5 ducklings) and 50 ppm (5/5 ducklings, all dying within 5 d) TMTC groups. Death was preceded by cephalic tremors
Authors
W. J. Fleming, E. F. Hill, J.J. Momot, V.F. Pang
Satellite monitors cranes migrating from Siberia
No abstract available.
Authors
D. H. Ellis, Y. Markin
Contaminants in American alligator eggs from Lake Apopka, Lake Griffin, and Lake Okeechobee, Florida
Residues of organochlorine pesticides, polychlorinated biphenyls (PCBs), and 16 elements were measured in American alligator (Alligator mississippiensis) eggs collected in 1984 from Lakes Apopka, Griffin, and Okeechobee in central and south Florida. Organochlorine pesticides were highest in eggs from Lake Apopka. None of the elements appeared to be present at harmful concentrations in eggs from an
Authors
Gary H. Heinz, H. Franklin Percival, Michael L. Jennings
Effects of submersed macrophytes on dissolved oxygen, pH and temperature under different conditions of wind, tide and bed structure
Seasonal data on diurnal dissolved-oxygen concentration (DO), pH, temperature and chlorophyll-a were collected and species composition and vertical structure of macrophyte beds were analyzed in the tidal Potomac River during the 1987 growing season. The relationships among these variables and physical and climatic factors were analyzed. Elevated surface temperatures, DO and pH were found in macrop
Authors
V. Carter, N. B. Rybicki, R.S. Hammerschlag