Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16785
Social organization and behavior of the swallow-tailed manakin, Chiroxiphia caudata
No abstract available.
Authors
M.S. Foster
Areas of localized organochlorine contamination in Arizona and New Mexico
Wings from mallard ducks harvested in 1980 in Arizona, Arkansas, Louisiana, and New Mexico were pooled into county aggregates and analyzed for organochlorine pesticides and PCB's. Organochlorine concentrations in duck wings were compared among counties comprising major river drainages within each state. DDE concentrations in the wings of mallards collected from the Verde River and the lower portio
Authors
W. J. Fleming, B. W. Cain
Toxicity of abate® 4E (temephos) in mallard ducklings and the influence of cold
Diets mixed to contain 0, 0.1, 1.0, 10 and 100 ppm temephos (determined chemically to contain less than 0.5, less than 0.5, 0.89, 6.0 and 59 ppm temephos, respectively) in an Abate® 4E formulation, were fed to mallard (Anas platyrhynchos) ducklings for 7 d. During this period, half of the ducklings in each dietary treatment group were housed in a heated brooder (39 to 41 °C) and half were housed i
Authors
W. J. Fleming, G. H. Heinz, J. C. Franson, Barnett A. Rattner
Lethal and behavioral effects of chlordimeform in bobwhite
The 7-day LC50 of chlordimeform to bobwhite (Colinus virginianus) chicks was 2835 ppm (95% CI = 2169-3705 ppm). Bobwhite chicks fed 1000 ppm (~ LC4) chlordimeform for 7 days ate less, weighed less, travelled farther from a fright stimulus in an avoidance test, and had significantly more groups make >10 light beam interruptions in an open-field test at 8 days of age than bobwhite fed 0, 1, 10, or 1
Authors
W. J. Fleming, G. H. Heinz, C.A. Schuler
Enzyme activities in plasma, kidney, liver, and muscle of five avian species
Activities of alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP), creatine phosphokinase (CPK), and lactate dehydrogenase (LDH) were determined in plasma, kidney, liver, and muscle from five species of captive birds. Few differences occurred in plasma activities between sexes but considerable differences occurred between species. All five enzymes were de
Authors
J. C. Franson, H. C. Murray, C. Bunck
Cryogenic preservation of semen from the greater sandhill crane
No abstract available.
Authors
G.F. Gee, M.R. Bakst, T.J. Sexton
Can relocated wolves survive?
Considerable interest has been expressed recently in establishing gray wolves (Canis lupus) into parts of their former range (Bailey 1978, Weaver 1978, Klinghammer 1979, Mech 1979, Henshaw 1982). However, the proper procedure for reintroductions is debatable (Klinghammer 1979). To date, wolf relocations have been conducted in Alaska, where 5 2-year-old captive-reared wolves were released into an a
Authors
Steven H. Fritts, William J. Paul, L. David Mech
Sperm whales (Physeter catodon) in the Gulf of Mexico
The distribution of the sperm whale, Physeter catodon, was documented in the Gulf of Mexico during 1979 to 1981 using regular aerial surveys and opportunistic sightings from ships. Most sightings were in the western Gulf of Mexico in deep waters near the edge of the continental shelf. A total of 47 adults and 12 young animals was sighted in groups containing from one to 14 animals.
Authors
L.A. Collum, T. H. Fritts
Cyclopogon deminkiorum a new species from Paraguay (Orchidaceae: Spiranthinae)
No abstract available.
Authors
P. Burns-Balogh, M.S. Foster
Atlantic Flyway review: Region V: Patuxent Wildlife Research Center, Laurel, Prince Georges County, MD (390-0764)
This was my 4th year of banding in a powerline right-of-way that is specially managed to encourage growth of dense scrub. Nets were run for 2 to 3 hours each morning, because activity dropped off rapidly after the sun hit the nets. I banded on 79 days, from 1 August to 22 November. Frost continues to be a problem late in the season; the frostpocket effect of the stream valley and the lack of veget
Authors
Danny Bystrak
Accumulation of methylmercury in the earthworm, Eisenia foetida, and its effect on regeneration
No abstract available.
Authors
W. N. Beyer, E. Cromartie, G. B. Moment