Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16731
Wetlands mitigation: Partnership between an electric power company and a federal wildlife refuge Wetlands mitigation: Partnership between an electric power company and a federal wildlife refuge
Twenty-three acres of a degraded section of Patuxent Research Refuge in Laurel, Maryland were converted to wetland habitat by the Baltimore Gas and Electric Company in 1994. The wetlands were created as mitigation for 14 acres of wetlands that were impacted as part of the construction of a 5.3 mile 500kv overhead transmission line on the Refuge. The area consists of a created forested...
Authors
Matthew C. Perry, C.B. Sibrel, G.A. Gough
New nesting area of Puerto Rican parrots New nesting area of Puerto Rican parrots
No abstract available.
Authors
J.M. Meyers
Tyrannula minima Baird & Baird, 1843 (currently Empidonax minimus) and Contopus pertinax Cabanis & Heine, 1859 (Aves, Passeriformes): Proposed conservation of the specific names Tyrannula minima Baird & Baird, 1843 (currently Empidonax minimus) and Contopus pertinax Cabanis & Heine, 1859 (Aves, Passeriformes): Proposed conservation of the specific names
No abstract available.
Authors
C.S. Robbins
A field data assessment of contemporary models of beach cusp formation A field data assessment of contemporary models of beach cusp formation
Cusp formation was observed during an instrumented, daily profiled, time series of a reflective beach in Canaveral National Seashore, Florida on January 5, 1988. The monitored cusp embayment formed by erosion of the foreshore and the cusp series had a mean spacing of approximately 28 m. During this time, inshore fluid flows were dominated by two standing edge waves at frequencies of 0.06...
Authors
J.R. Allen, N.P. Psuty, B.O. Bauer, R.W.G. Carter
Developmental toxicity of PCB 126 (3,3',4,4',5-pentachlorobiphenyl) in nestling American kestrels (Falco sparverius) Developmental toxicity of PCB 126 (3,3',4,4',5-pentachlorobiphenyl) in nestling American kestrels (Falco sparverius)
Planar PCB congeners are embryotoxic and teratogenic to birds including American kestrels. The developmental toxicity of 3,3′,4,4′,5-pentachlorobiphenyl (PCB 126) was studied in the posthatching kestrel as a model for the eagle. Nestlings were dosed orally for 10 days with 5 μl/g body weight of corn oil (controls) or the planar PCB 126 at concentrations of 50, 250, or 1000 ng/g body...
Authors
David J. Hoffman, Mark J. Melancon, P. N. Klein, Clifford P. Rice, John D. Eisemann, Randy K. Hines, James W. Spann, Grey W. Pendleton
The 1994 and 1995 summary of the North American Breeding Bird Survey The 1994 and 1995 summary of the North American Breeding Bird Survey
Data from the North American Breeding Bird Survey were used to estimate continental and regional changes in bird populations for the 2-year periods of 1993-1994 and 1994-1995. These 2-year changes were placed in the context of population trends estimated over the 1966-1995 interval. The 2-year changes were more positive during the 1993-1994 period, when 54.2% of all species exhibited...
Authors
B.G. Peterjohn, J.R. Sauer, W.A. Link
Survival of breeding male American woodcock in Maine Survival of breeding male American woodcock in Maine
The authors investigated the survival of breeding male American woodcock in Washington County, Maine. A total of 150 birds were radio-arked during 1987-1989 and relationships were evaluated between survival, body mass, predation, weather, and habitat use. Survival varied from 0.690 (1989) to 0.924 (1988), with a 3-year mean (95% confidence interval) of 0.789 (0.693-0.885)
Authors
J. R. Longcore, D.G. McAuley, G.F. Sepik, G.W. Pendleton
Denning behaviour of non-gravid wolves, Canis lupus Denning behaviour of non-gravid wolves, Canis lupus
Wild wolves (Canis lupus) that had produced pups in earlier years but were not currently pregnant, and ovariectomized captive wolves, dug dens during and after the whelping season even though they produced no pups. These observations suggest that den digging is not a function of pregnancy or of ovarian estrogen or progesterone. We hypothesize that increasing prolactin in spring elicits...
Authors
L.D. Mech, M.K. Phillips, D.W. Smith, T.J. Kreeger
Productivity of the spruce grouse in fragmented habitat at the edge of its range Productivity of the spruce grouse in fragmented habitat at the edge of its range
We measured productivity of the Spruce Grouse (Dendragapusc anadensicsa nadensis) in patchy black spruce (Picea mariana) habitat along the southeastern limit of its range in mid-coastal Maine. We captured grouse and attached necklace-mounted radio transmitters to hens prior to nesting. Of 19 females monitored, only 26% raised chicks to the late brood-rearing period. Predation was high on...
Authors
S.D. Whitcomb, A.F. O'Connell, F. A. Servello
Northern mockingbird, Mimus polyglottos Northern mockingbird, Mimus polyglottos
No abstract available.
Authors
C.S. Robbins
Recording mammal calls Recording mammal calls
No abstract available.
Authors
W.L. Gannon, M.S. Foster
Conducting a survey to assess mammalian diversity Conducting a survey to assess mammalian diversity
No abstract available.
Authors
R. Rudran, M.S. Foster