Reproduction and environmental contamination in tree swallows nesting in the Fox River drainage and Green Bay, Wisconsin, USA
Christine M. Custer, Thomas W. Custer, P. David Allen, Kenneth L. Stromborg, Mark J. Melancon
1998, Environmental Toxicology and Chemistry (17) 1786-1798
Concentration, accumulation, and effects of polychlorinated biphenyls (PCBs) o nreproduction in tree swallows (Tachycineta bicolor) were studied at four sites in the Fox River drainage and in Green Bay, Lake Michigan, Wisconsin, USA, in 1994 and 1995. Total PCBs in eggs and newly hatched young (mean = 3.01 μg/g wet...
The seventy-fourth Christmas bird count. 315. Southern Dorchester County, Md
C.S. Robbins
1998, Journal of Wildlife Management (62) 276-277
Because limited information is available regarding preferences for nocturnal habitat during winter, we studied use of nocturnal habitats by American woodcock (Scolopax minor) wintering in the Georgia Piedmont (1994-95). During the evening crepuscular period, woodcock on the wintering grounds move from forested to field habitats, presumably to feed, conduct...
Endocrine, developmental and reproductive impacts of polychlorinated biphenyl (Arochlor 1242) in American kestrels
J.B. French Jr., P.F.P. Henry, Barnett A. Rattner, M. A. Ottinger
1998, American Zoologist (38) 206A-206A
No abstract available....
Energetic cost of dietary exposure to polychlorinated biphenyls (PCBS) for white-footed mice, Peromyscus leucopus
M.B. Voltura, J.B. French
1998, American Zoologist (38) 49A-49A
No abstract available....
The seventy-fourth Christmas bird count. 315. Southern Dorchester County, Md
James Berdeen, D.G. Krementz
1998, Journal of Wildlife Management (62) 939-947
Because limited information is available regarding preferences for nocturnal habitat during winter, we studied use of nocturnal habitats by American woodcock (Scolopax minor) wintering in the Georgia Piedmont (1994-95). During the evening crepuscular period, woodcock on the wintering grounds move from forested to field habitats, presumably to feed, conduct...
The seventy-second Christmas bird count. 302. Southern Dorchester County, Md
R.R. Wilson, R.J. Cooper
1998, Condor (100) 673-679
We located 511 Acadian Flycatcher (Empidonax virescens) nests in bottomland hardwood forest of eastern Arkansas. Microhabitat characteristics were measured and their relationship with nest success evaluated. Fifty-two percent of all nesting attempts resulted in predation. Attributes of nest placement were similar between successful and unsuccessful nests, although...
The response of primary producers to nutrient enrichment in a shallow estuary
E.H. Kinney, C. T. Roman
1998, Marine Ecology Progress Series (163) 89-98
Shallow coastal systems worldwide are exhibiting increased algal growth in response to nutrient enrichment. This study evaluates primary production patterns in an estuarine system (Bass Harbor Marsh, Maine) receiving low levels of anthropogenic nitrogen. Biomass, areal coverage and in situ oxygen production of green macroalgae, Ruppia maritima, and...
Metal concentrations in aquatic macrophytes as influenced by soil and acidification
D. W. Sparling, T. P. Lowe
1998, Water, Air, & Soil Pollution (108) 203-221
Bioavailability of metals to aquatic plants is dependent on many factors including ambient metal concentration, pH of soil or water, concentration of ligands, competition with other metals for binding sites, and mode of exposure. Plants may be exposed to metals through water, air, or soil, depending on growth form....
Living fossils: You haven't changed a bit: Tuatara
R.I. Crombie, R.P. Reynolds
1998, Washington Post H4
Deformities in southern leopard frogs linked to common pesticides
D. W. Sparling
1998, People, Land, and Water (5) 11
Frog force enlists public in national monitoring campaign
S.M. Swicker
1998, People, Land, and Water (5) 12
Organic-matter production and preservation and evolution of anoxia in the Holocene Black Sea
M.A. Arthur, W.E. Dean
1998, Paleoceanography and Paleoclimatology (13) 395-411
Dating of sediments collected in gravity cores during Leg 1 of the 1988 R/V Knorr expedition to the Black Sea suggests that the onset of water-column anoxia at ∼7.5 ka was virtually synchronous across the basin over a depth range of ∼200–2250 m. A finely laminated, organic carbon (OC) rich sapropel (unit...
Analysis of factors affecting population viability and reintroduction attempts of native mammals in Acadia National Park
M. Chilelli, B. Griffith, J.R. Gilbert, A.F. O'Connell Jr.
1998, Technical Report NPS/NESO-RNR/NRTR/98-06
Survey of flying squirrels and their association with vegetation communities on Mount Desert Island (Acadia National Park), Maine
J. Higgins, A.F. O'Connell Jr., F. A. Servello
1998, Technical Report NPS/NESO-RNR/NRTR/98-08
Copper hazards to fish, wildlife and invertebrates: a synoptic review
Ronald Eisler
1998, Contaminant Hazard Reviews Report 33 ; Biological Science Report USGS/BRD/BSR--1997-0002.
Selective review and synthesis of the technical literature on copper and copper salts in the environment and their effects primarily on fishes, birds, mammals, terrestrial and aquatic invertebrates, and other natural resources. The subtopics include copper sources and uses; chemical and biochemical properties; concentrations of copper in field collections of...
Nickel Hazards to Fish, Wildlife and Invertebrates: A Synoptic Review
R. Eisler
1998, Contaminant Hazard Reviews Report 34 ; Biological Science Report USGS/BRD/BSR--1998-0001.
This account is a selective review and synthesis of the technical literature on nickel and nickel salts in the environment and their effects on terrestrial plants and invertebrates, aquatic plants and animals, avian and mammalian wildlife, and other natural resources, The subtopics include nickel sources and uses; physical, chemical, and...
Acadia's bald eagles: Research summary and management recommendations
A.C. Matz, J.R. Gilbert, A.F. O'Connell Jr.
1998, Technical Report NPS/NESO-RNR/NRTR/98-07
Systematic studies of Oryzomyine rodents (Muridae, Sigmodontinae): diagnoses and distributions of species formerly assigned to Oryzomys 'capito'
G.G. Musser, M.D. Carleton, E.M. Brothers, A. L. Gardner
1998, Bulletin of the American Museum of Natural History No. 236.
We describe the morphological species-boundaries and geographic distributions of ten Neotropical Oryzomys based on analyses of museum specimens (skins and skulls, examples preserved in fluid, chromosomal spreads, and information about collection sites from skin tags, field catalogs, and other sources). These species have been regarded as members of an...
An evaluation of camping impacts and their management at Isle Royale National Park
T. A. Farrell, J. L. Marion
1998, Report
Results from the development and application of a monitoring program to assess visitor impacts on back-country campsites at Isle Royale National Park are presented. Survey staff assessed conditions on 244 sites within 36 back-country campgrounds, including 113 individual campsites, 43 group campsites, and 88 shelters. Site conditions are...
The North American Amphibian Monitoring Program. [abstract]
J. Griffin
1998, Book chapter, Midwest Declining Amphibians Conference, a joint meeting of the Great Lakes and Central Division Working Groups of the Declining Amphibian Populations Task Force, March 20 & 21, 1998
The North American Amphibian Monitoring Program has been under development for the past three years. The monitoring strategy for NAAMP has five main prongs: terrestrial salamander surveys, calling surveys, aquatic surveys, western surveys, and atlassing. Of these five, calling surveys were selected as one of the first implementation priorities due...
Changing number of Canada geese wintering in different regions of the Atlantic Flyway
J.B. Hestbeck
Donald H. Rusch, Michael D. Samuel, Dale D. Humburg, Brian D. Sullivan, editor(s)
1998, Book chapter, Biology and management of Canada geese: proceedings of the International Canada Goose Symposium
During the past 40 years, profound changes have occurred in the number of Canada geese (Branta canadensis) wintering in different regions of the Atlantic Flyway. To explain the declining number of wintering geese in the Chesapeake and Carolina regions and the increasing number in the mid-Atlantic region from 1984...
Eyrie enhancement measures to bolster Saker falcon populations in Mongolia
D. H. Ellis, P. Tsengag, P.L. Whitlock
1998, Book chapter, Raptor Research Foundation Annual Meeting, Program and Abstracts, Ogden, Utah, 30 September-4 October
Because the massive harvest of Saker Falcons (Falco cherrug) in Central Asia has already impacted local populations at least in Kazakhstan, because falcon smuggling has recently become rampant in China, and because a government-authorized harvest has begun in Mongolia, we sought measures to bolster numbers in Mongolia before the population...
Estimating population parameters for northern and southern breeding populations of Canada geese
J.B. Hestbeck
Donald H. Rusch, Michael D. Samuel, Dale D. Humburg, Brian D. Sullivan, editor(s)
1998, Book chapter, Biology and management of Canada geese: proceedings of the International Canada Goose Symposium
Canada geese (Branta canadensis) have been managed largely as a migratory resource. In the 1960's, Canada goose flocks were restored to historic breeding ranges in the United States and southern Canada to enhance recreational opportunity for observation and harvest. These populations of southern breeding geese have rapidly expanded,...
Spotted Towhee
P. A. Buckley
Emanuel Levine, editor(s)
1998, Book chapter, Bull's birds of New York State
Field evidence for linking Altosid applications with increased amphibian deformities in southern leopard frogs [abstract]
D. W. Sparling
1998, Book chapter, Midwest Declining Amphibians Conference, a joint meeting of the Great Lakes and Central Division Working Groups of the Declining Amphibian Populations Task Force, March 20 & 21, 1998
During the summer of 1997 we repeatedly sprayed Altosid, a formulation of 4% methoprene used for mosquito control, on six constructed macrocosms. Six additional macrocosms were sprayed with Abate4E, containing the organophosphate pesticide temephos, and six were sprayed with water (controls). The wetlands were created on an impermeable foundation for...
