J. A. Allen, J. Wessman, D.J. Twedt
2006, Ecological Restoration (24) 111-112
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Publication Extents
Not all publications have extents, not all extents are completely accurateM. Butler, C. Suom, R.A. LeBrun, H. S. Ginsberg, A.D. Gettman
2006, Journal of the American Mosquito Control Association (22) 339-342
The mosquito larvicide methoprene is a juvenile growth hormone mimic that is widely used to control mosquitoes. This chemical disrupts normal mosquito development, drastically inhibiting emergence from the pupal to the adult stage. If the presence of methoprene attracts or deters mosquitoes from ovipositing it could have implications...
M. Butler, R.A. LeBrun, H. S. Ginsberg, A.D. Gettman
2006, Journal of the American Mosquito Control Association (22) 333-338
This study evaluated the efficacy of methoprene, a widely used juvenile hormone mimic, formulated as 30-day slow release Altosid? pellets, at controlling mosquitoes in underground storm water drainage catch basins. Data from applications to ?-sized cement catch basins in the laboratory, field observations from treated and untreated basins, and...
J.D. Nichols, J.E. Hines, J.R. Sauer, T. Boulinier, E. Cam
2006, Ecology (87) 2118-2121
Mary C. Freeman, P.A. Marcinek
2006, Environmental Management (38) 435-450
Understanding effects of flow alteration on stream biota is essential to developing ecologically sustainable water supply strategies. We evaluated effects of altering flows via surface water withdrawals and instream reservoirs on stream fish assemblages, and compared effects with other hypothesized drivers of species richness and assemblage composition. We sampled fishes...
D.J. Twedt
2006, Restoration Ecology (14) 316-320
Despite the diversity of trees in bottomland forests, restoration on bottomland sites is often initiated by planting only a few species of slow-growing, hard mast?producing trees. Although successful at establishing trees, these young forests are slow to develop vertical structure, which is a key predictor of forest bird colonization....
P. Gagnon, W. Michener, M. Freeman, J. Brim-Box
2006, Southeastern Naturalist (5) 31-52
Effective conservation of mussels in streams of the lower Flint River basin, southwest Georgia, requires more rigorous understanding of mussel-habitat associations and factors shaping assemblage composition in stream reaches. We surveyed mussels and habitat conditions at 46 locations, and used regression, correlation and multivariate direct gradient analysis (Canonical Correspondence...
E.J. Penny, R.M. Kaminski, K. J. Reinecke
2006, Wildlife Society Bulletin (34) 186-190
Methods to sample the abundance of moist-soil seeds efficiently and accurately are critical for evaluating management practices and determining food availability. We adapted a portable, gasoline-powered vacuum to estimate abundance of seeds on the surface of a moist-soil wetland in east-central Mississippi and evaluated the sampler by simulating conditions...
B.A. Krafft, K.M. Kovacs, M. Andersen, Jon Aars, C. Lydersen, T. Ergon, T. Haug
2006, Marine Mammal Science (22) 394-412
Ringed seal (Pusa hispida) abundance in Spitsbergen, Svalbard, was estimated during the peak molting period via aerial, digital photographic surveys. A total of 9,145 images, covering 41.7%–100% of the total fast-ice cover (1,496 km2) of 18 different fjords and bays, were inspected for the presence of ringed seals. A total...
J.D. Stafford, R.M. Kaminski, K. J. Reinecke, S.W. Manley
2006, Journal of Wildlife Management (70) 61-69
Flooded rice fields are important foraging habitats for waterfowl in the lower Mississippi Alluvial Valley (MAV). Waste rice previously was abundant in late autumn (140?492 kg/ha), but early planting and harvest dates in recent years may have increased losses of waste rice during autumn before waterfowl arrive. Research...
P.B. Conn, A.D. Arthur, L.L. Bailey, G.R. Singleton
2006, Ecological Applications (16) 829-837
Knowledge of animal abundance is fundamental to many ecological studies. Frequently, researchers cannot determine true abundance, and so must estimate it using a method such as mark-recapture or distance sampling. Recent advances in abundance estimation allow one to model heterogeneity with individual covariates or mixture distributions and to...
E.H.C. Grant, P. Nanjappa
2006, Herpetological Review (37) 57-60
J.D. Nichols, B. Kenneth Williams
2006, Trends in Ecology and Evolution (21) 668-673
Human-mediated environmental changes have resulted in appropriate concern for the conservation of ecological systems and have led to the development of many ecological monitoring programs worldwide. Many programs that are identified with the purpose of `surveillance? represent an inefficient use of conservation funds and effort. Here, we revisit...
J. Andrew Royle, R.M. Dorazio
2006, Journal of Agricultural, Biological, and Environmental Statistics (11) 249-263
Much of animal ecology is devoted to studies of abundance and occurrence of species, based on surveys of spatially referenced sample units. These surveys frequently yield sparse counts that are contaminated by imperfect detection, making direct inference about abundance or occurrence based on observational data infeasible. This article...
Barnett A. Rattner, Moira A. McKernan, Karen M. Eisenreich, William A. Link, Glenn H. Olsen, David J. Hoffman, K.A. Knowles, Peter C. McGowan
2006, Journal of Toxicology and Environmental Health, Part A (69) 331-351
A recent Canada goose (Branta canadensis) die-off at a petroleum refinery fly ash pond in Delaware was attributed to vanadium (V) toxicity. Because of the paucity of V toxicity data for wild birds, a series of studies was undertaken using the forms of V believed to have resulted in this...
D. J. Hoffman, G. H. Heinz, D. J. Audet
2006, Journal of Toxicology and Environmental Health, Part A (69) 1039-1053
Lead poisoning of waterfowl has been reported for decades in the Coeur d'Alene River Basin (CDARB) in Idaho as a result of the ingestion of lead-contaminated sediments. This study was conducted to determine whether the addition of phosphoric acid to CDARB sediments would reduce the bioavailability and toxicity of...
D.C. Hahn, N.M. Nemeth, E. Edwards, P.R. Bright, N. Komar
2006, Avian Diseases (50) 454-455
Transovarial antibody transfer in owls has not been demonstrated for West Nile virus (WNV). We sampled chicks from captive adult WNV-antibody-positive Eastern Screech-Owls (Megascops asio) to evaluate the prevalence of transovarial maternal antibody transfer, as well as titers and duration of maternal antibodies. Twenty-four owlets aged 1 to...
Byron D. Stone, Mary L. DiGiacomo-Cohen
2006, Open-File Report 2006-1260-E
The surficial geologic map layer shows the distribution of nonlithified earth materials at land surface in an area of 24 7.5-minute quadrangles (555 mi2 total) in southeast Massachusetts. Across Massachusetts, these materials range from a few feet to more than 500 ft in thickness. They overlie bedrock, which crops out...
Eric J. Alfaro, Alexander Gershunov, Daniel R. Cayan
2006, Journal of Climate (19) 1407-1421
A statistical model based on canonical correlation analysis (CCA) was used to explore climatic associations and predictability of June–August (JJA) maximum and minimum surface air temperatures (Tmax and Tmin) as well as the frequency of Tmax daily extremes (Tmax90) in the central and western United States (west of 90°W). Explanatory...
Michael P. Finn, E. Lynn Usery, Douglas J. Scheidt, Gregory M. Jaromack, Timothy D. Krupinski
2006, Geographic Information Sciences (12) 10-20
The U.S. Department of Agriculture developed the Agricultural Non-Point Source (AGNPS) pollution model. The AGNPS pollution model simulates the behavior of runoff, sediment, and nutrient transport from watersheds that have agriculture as their prime use. This model has been used extensively by scientists conducting hydrologic or water quality analyses using...
C.M. Lussier, H. S. Ginsberg, R.A. LeBrun
2006, Technical Report NPS/NER/NRTR-2006/050
R. Greenberg, J.E. Maldonado, Sam Droege, M.V. McDonald, editor(s)
2006, Studies in Avian Biology
C.V. Miller, H.S. Weyers, V. S. Blazer, M.E. Freeman
2006, Scientific Investigations Report 2006-5140.
Several classes of chemicals that are known or suspected contaminants were found in bed sediment in Rock Creek, including polyaromatic hydrocarbons (PAHs), phthalate esters, organochlorine pesticides, dioxins and furans, trace metals and metalloids (mercury, arsenic, cadmium, chromium, cobalt, copper, lead, nickel, silver, and zinc), and polychlorinated biphenyls (total PCBs and...
Matthew C. Perry
Alan Hanson, Joseph Kerekes, Julie Paquet, editor(s)
2006, Book chapter, Limnology and Waterbirds 2003. The 4th Conference of the Aquatic Birds Working Group of the Societas Internationalis Limnologiae (SIL)
Atlantic Seaduck Project is being conducted to learn more about the breeding and moulting areas of seaducks in northern Canada and more about their feeding ecology on wintering areas, especially Chesapeake Bay. Satellite telemetry is being used to track surf scoters wintering in Chesapeake Bay, Maryland and black scoters...
T. Cronin, M. Kinloch, Glenn H. Olsen
2006, Book chapter, Abstracts to XXIV International Ornithological Congress, Hamburg, 2006
Many species of cursorial birds 'head-bob', that is, they alternately thrust the head forward, then hold it stiII as they walk. Such a motion stabilizes visual fields intermittently and could be critical for visual search; yet the time available for stabilization vs. forward thrust varies with walking speed....