Animal and vegetation patterns in natural and man-made bog pools: implications for restoration
M. J. Mazerolle, Marie-Pier Poulin, C. Lavoie, L. Rochefort, A. Desrochers, B. Drolet
2006, Freshwater Biology (51) 333-350
1. Peatlands have suffered great losses following drainage for agriculture, forestry, urbanisation, or peat mining, near inhabited areas. We evaluated the faunal and vegetation patterns after restoration of a peatland formerly mined for peat. We assessed whether bog pools created during restoration are similar to natural bog pools...
Phosphorus amendment reduces hematological effects of lead in mallards ingesting contaminated sediments
D. J. Hoffman, G. H. Heinz, D. J. Audet
2006, Archives of Environmental Contamination and Toxicology (50) 421-428
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 sediments would reduce the bioavailability and toxicity of lead...
Chlorfenapyr and mallard ducks: Overview, study design, macroscopic effects, and analytical chemistry
P.H. Albers, P. N. Klein, D. E. Green, M. J. Melancon, B.P. Bradley, G. Noguchi
2006, Environmental Toxicology and Chemistry (25) 438-445
The first commercial pesticide derived from a class of compounds known as halogenated pyrroles was registered for use in the United States in 2001. Chlorfenapyr degrades slowly in soil, sediment, and water and is highly toxic to birds. Information on biochemical or histological endpoints in birds is lacking; therefore, a...
A hierarchical model for regional analysis of population change using Christmas Bird Count data, with application to the American Black Duck
W.A. Link, J.R. Sauer, D.K. Niven
2006, Condor (108) 13-24
Analysis of Christmas Bird Count (CBC) data is complicated by the need to account for variation in effort on counts and to provide summaries over large geographic regions. We describe a hierarchical model for analysis of population change using CBC data that addresses these needs. The effect of...
The role of the Wetland Reserve Program in conservation efforts in the Mississippi River Alluvial Valley
Sammy L. King, Daniel J. Twedt, R. Randy Wilson
2006, Wildlife Society Bulletin (34) 914-920
The Mississippi River Alluvial Valley includes the floodplain of the Mississippi River from Cairo, Illinois, USA, to the Gulf of Mexico. Originally this region supported about 10 million ha of bottomland hardwood forests, but only about 2.8 million ha remain today. Furthermore, most of the remaining bottomland forest is highly...
The need for coherence between waterfowl harvest and habitat management
M.C. Runge, Fred A. Johnson, M.G. Anderson, M.D. Koneff, E.T. Reed, S.E. Mott
2006, Wildlife Society Bulletin (34) 1231-1237
Two of the most significant management efforts affecting waterfowl populations in North America are the North American Waterfowl Management Plan (the Plan) and Federal harvest management programs. Both the Plan and harvest management are continental in scope, involve an extensive group of stakeholders, and rely on adaptive processes of...
Coherence between harvest and habitat management -- Joint venture perspectives
C.K. Baxter, J.W. Nelson, K. J. Reinecke, S. E. Stephens
2006, Transactions of the North American Wildlife and Natural Resources Conference (71) 214-232
Introduction: In recent months, an ad hoc group of waterfowl scientists, representing the International Association of Fish and Wildlife Agencies (IAFWA) Adaptive Harvest Management (ARM) Task Force and the North American Waterfowl Management Plan (NAWMP) Committee, have collaborated as a Joint Task Group (JTG) to assess options for unifying...
Trace element concentrations and bioindicator responses in tree swallows from northwestern Minnesota
Christine M. Custer, T. W. Custer, D. Warburton, D. J. Hoffman, J. W. Bickham, C. W. Matson
2006, Environmental Monitoring and Assessment (118) 247-266
Extremely high concentrations of cadmium (3.5 μg/g dry wgt.) and elevated concentrations of chromium (>10 μg/g dry wgt.) and mercury (1.6 μg/g dry wgt.) were reported in waterbird tissues at Agassiz National Wildlife Refuge in northwestern Minnesota in 1994. Tree swallows (Tachycineta bicolor) were studied during 1998–2001 at three drainages into the Refuge, two...
Ecological consequences of hydropower development in Central America: Impacts of small dams and water diversion on neotropical stream fish assemblages
Elizabeth P. Anderson, Mary C. Freeman, C. M. Pringle
2006, River Research and Applications (22) 397-411
Small dams for hydropower have caused widespread alteration of Central American rivers, yet much of recent development has gone undocumented by scientists and conservationists. We examined the ecological effects of a small hydropower plant (Dona Julia Hydroelectric Center) on two low-order streams (the Puerto Viejo River and Quebradon stream)...
Effects of lead-contaminated sediment on Rana sphenocephala tadpoles
D. W. Sparling, S.K. Krest, M. Ortiz-Santaliestra
2006, Archives of Environmental Contamination and Toxicology (51) 458-466
We exposed larval southern leopard frogs (Rana sphenocephala) to lead-contaminated sediments to determine the lethal and sublethal effects of this metal. Tadpoles were laboratory-raised from early free-swimming stage through metamorphosis at lead concentrations of 45, 75, 180, 540, 2360, 3940, 5520, and 7580 mg/kg dry weight in sediment....
Nest fate and productivity of American Oystercatchers, Cumberland Island National Seashore, Georgia
J. B. Sabine, Sara H. Schweitzer, J.M. Meyers
2006, Waterbirds (29) 308-314
The American Oystercatcher (Haematopus palliatus) is listed as a species of high priority by the U.S. Shorebird Conservation Plan and is state-listed as rare in Georgia; however, biologists have not focused on identifying the causes of egg and hatchling losses. In 2003 and 2004, continuous video monitoring was used...
The distribution and conservation status of the Gull-billed Tern (Gelochelidon nilotica) in North America
K.C. Molina, R.M. Erwin
2006, Waterbirds (29) 271-295
The Gull-billed Tern (Gelochelidon nilotica) has until recently received little conservation and management attention within North America despite a relatively low overall population size and significant declines in parts of the breeding range. This lack of attention may stem in part from the wide distribution of the species, encompassing...
Effects of hardness and alkalinity in culture and test waters on reproduction of Ceriodaphnia dubia
P. J. Lasier, P. V. Winger, I.R. Hardin
2006, Environmental Toxicology and Chemistry (25) 2781-2786
Ceriodaphnia dubia were cultured in four reconstituted water formulations with hardness and alkalinity concentrations ranging from soft to the moderately hard water that is required by whole-effluent toxicity (WET) testing methods for culturing test organisms. The effects of these culture formulations alone and in combination with two levels of...
Efficacy of methoprene for mosquito control in storm water catch basins
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...
Herpetofaunal diversity of Alligator River National Wildlife Refuge, North Carolina
J.M. Meyers, D.A. Pike
2006, Southeastern Naturalist (5) 235-252
In the past century, habitat alteration and fragmentation have increased dramatically, which increases the need for improving our understanding of how species and biological communities react to these modifications. A national strategy on biological diversity has focused attention on how these habitat modifications affect species, especially herpetofauna (i.e., changes...
Detrimental impacts of radiotransmitters on juvenile Louisiana Waterthrushes
B.J. Mattsson, J.M. Meyers, R.J. Cooper
2006, Journal of Field Ornithology (77) 173-177
The Louisiana Waterthrush (waterthrush: Seiurus motacilla) is a forest-dwelling, Nearctic-Neotropical migratory passerine that nests along streams. We attached radiotransmitters (0.6-0.8 g) to 12 nestling waterthrushes using snug, elastic loops. At three nests, adult waterthrushes were videotaped removing radio-tagged young from the nest. In addition, we recovered nine radio-backpacks...
Evaluation of osprey habitat suitability and interaction with contaminant exposure
P. C. Toschik, M. C. Christman, Barnett A. Rattner, M. A. Ottinger
2006, Journal of Wildlife Management (70) 977-988
Ospreys (Pandion haliaetus) have been the focus of conservation efforts since their dramatic population decline attributed to dichlorodiphenyltrichloroethane and related chemicals in the 1960s. Several recent studies of ospreys nesting in the United States have indicated improved reproduction. However, the density of breeding ospreys varies greatly among locations,...
Waste rice for waterfowl in the Mississippi Alluvial Valley
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...
Fish assemblage responses to water withdrawals and water supply reservoirs in Piedmont streams
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...
Phosphorus amendment reduces hepatic and renal oxidative stress in mallards ingesting lead-contaminated sediments
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...
Toxicity and hazard of vanadium to mallard ducks (Anas platyrhynchos) and Canada geese (Branta canadensis)
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...
Surficial Geologic Map of the Pocasset-Provincetown-Cuttyhunk-Nantucket 24-Quadrangle Area of Cape Cod and Islands, Southeast Massachusetts
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...
An interface between the Agricultural Non-Point Source (AGNPS) pollution model and the ERDAS Imagine Geographic Information System (GIS)
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...
Atlantic Seaduck Project
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...
Impacts of marsh management on coastal-marsh bird habitats
L.R. Mitchell, S. Gabrey, P.P. Marra, R.M. Erwin
2006, Book chapter, Terrestrial vertebrates of tidal marshes: evolution, ecology, and conservation
The effects of habitat-management practices in coastal marshes have been poorly evaluated. We summarize the extant literature concerning whether these manipulations achieve their goals and the effects of these manipulations on target (i.e., waterfowl and waterfowl food plants) and non-target organisms (particularly coastal-marsh endemics). Although we focus on...
