Michael A. Manning, Jeffery A. Ballweber
2000, Conference Paper
No abstract available. ...
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Publication Extents
Not all publications have extents, not all extents are completely accurateE. E. Boydston, K.E. Holekamp
2000, IUCN Hyaena Specialist Group Newsletter (7) 24-27
W. Walton, J. Thullen, J. Sartoris
2000, Mosquito Connection (5) 1-3
No abstract available....
L.D. Mech, E. K. Harper, T.J. Meier
2000, Duluth News Tribune
Richard B. Lanctot, Louis B. Best
2000, Journal of Mammalogy (81) 734-745
Dominance ranks in male and female prairie voles (Microtus ochrogaster) were determined from 6 measurements that mimicked environmental situations that might be encountered by prairie voles in communal groups, including agonistic interactions resulting from competition for food and water and encounters in burrows. Male and female groups of 6 individuals...
G.D. Wylie, Michael L. Casazza
2000, Report
No abstract available at this time...
Rolf R. Koford, B. S. Bowen, John T. Lokemoen, Arnold D. Kruse
James N.M. Smith, T.L. Cook, S. IU. Rothstein, S.K. Robinson, S.G. Sealy, editor(s)
2000, Book chapter, Ecology and management of cowbirds and their hosts
The landscape of the Great Plains has been greatly altered by human activities in the past century, and several grassland passerines have experienced significant population declines in recent decades. We explore here whether brood parasitism by Brown-headed Cowbirds, which are abundant in the Great Plains, has contributed to these declines....
S.A. Hathaway
2000, Thesis
No abstract available at this time...
T.K. Pratt
2000, The Auk (117) 1-11
I studied the systematic relationships of the three large owlet-nightjars (Aegothelidae) to determine the taxonomic status of a fawn-colored lowland form currently classified as Aegotheles insignis tatei. I examined most of the existing specimens of A. i. insignis (n = 158) and A. crinifrons (n = 23) and all known...
P. M. Bradley, F. H. Chapelle
2000, Environmental Science & Technology (34) 221-223
Microorganisms indigenous to the bed sediments of a black- water stream utilized 1,2-dichloroethene (1,2-DCE) as a sole carbon substrate for aerobic metabolism. Although no evidence of growth was observed in the minimal salts culture media used in this study, efficient aerobic microbial mineralization of 1,2-DCE as sole carbon substrate was...
M.A. Jirsa
2000, Canadian Journal of Earth Sciences (37) 1-15
The Midway sequence is an assemblage of subaerially deposited clastic and volcanic rocks that forms a narrow wedge within Neoarchean greenstone of the western Wawa subprovince of the Superior Province. Volcanic conglomerate in the Midway sequence contains clasts of stratigraphically older greenstone, together with clasts of a distinctive hornblende-phyric trachyandesite...
Paul T. Madeira, C.C. Jacono, Thai K. Van
2000, Journal of Aquatic Plant Management (38) 33-40
Hydrilla (Hydrilla verticillata (L.f.) Royle), an invasive aquatic weed, continues to spread to new regions in the United States. Two biotypes, one a female dioecious and the other monoecious have been identified. Management of the spread of hydrilla requires understanding the mechanisms of introduction and transport, an ability to map...
J. P. Bennett, C. M. Wetmore
2000, Science of the Total Environment (263) 231-241
An epiphytic lichen and a soil lichen in two very closely related genera (Parmelia sulcata and Xanthoparmelia chlorochroa, respectively) were sampled 16 years apart at Theodore Roosevelt National Park in North Dakota and measured for their elemental content. Mercury and cadmium decreased approximately 30% over the time period in both...
K. A. Converse, J. Mattsson, L. Eaton-Poole
2000, Journal of the Iowa Academy of Science (107) 160-167
The national distribution of information on the discovery of malformations in Minnesota frogs in 1995 stimulated collection and examination of newly metamorphosed frogs during 1996. By late summer and early fall of 1996, malformed frogs and toads were reported on U.S. Fish and Wildlife Service (USFWS) lands in Vermont (Northeast,...
J. P. Bennett, E. Chiriboga, J. Coleman, D.M. Waller
2000, Science of the Total Environment (246) 261-269
Wild rice grain samples from various parts of the world have been found to have elevated concentrations of heavy metals, raising concern for potential effects on human health. It was hypothesized that wild rice from north-central Wisconsin could potentially have elevated concentrations of some heavy metals because of possible exposure...
L. R. Brown
2000, Environmental Biology of Fishes (57) 251-269
Twenty sites in the lower San Joaquin River drainage, California, were sampled from 1993 to 1995 to characterize fish communities and their associations with measures of water quality and habitat quality. The feasibility of developing an Index of Biotic Integrity was assessed by evaluating four fish community metrics, including percentages...
M. L. Wildhaber, A.L. Allert, C. J. Schmitt, V.M. Tabor, D. Mulhern, K.L. Powell, S.P. Sowa
2000, Transactions of the American Fisheries Society (129) 243-261
We attempted to discern the contributions of physical habitat, water chemistry, nutrients, and contaminants from historic lead–zinc mining activities on the riffle‐dwelling benthic fish community of the Spring River, a midwestern warmwater stream that originates in Missouri and flows into Kansas and Oklahoma. The Spring River has a fish community...
Theresa M. Schreier, V. K. Dawson, Yirang Cho, N.J. Spanjers, M.A. Boogaard
2000, Journal of Agricultural and Food Chemistry (48) 2212-2215
Bayluscide [the ethanolamine salt of niclosamide (NIC)] is a registered piscicide used in combination with 3-(trifluoromethyl)-4-nitrophenol (TFM) to control sea lamprey populations in streams tributary to the Great Lakes. A high-performance liquid chromatography (HPLC) method was developed for the determination of NIC residues in muscle fillet tissues of fish...
P.J. Pietz, Gary L. Krapu, D. A. Buhl, D.A. Brandt
2000, Condor (102) 936-940
We examined the relationship between local water conditions (measured as the percent of total area of basins covered by water) and clutch size, egg volume, and hatchling mass of Mallards (Anas platyrhynchos) and Gadwalls (A. strepera) on four study sites in the Prairie Pothole Region of North Dakota and Minnesota,...
John A. Bissonette, Cynthia S. Loftin, David M. Leslie Jr., L. A. Nordstrom, W. James Fleming
2000, Wildlife Society Bulletin (28) 534-541
In 1932, J. N. 'Ding' Darling proposed a 3-year tripartite arrangement between the Iowa Fish and Game Commission, Iowa State University, and himself to establish the first Cooperative Wildlife Research Unit. Three years later, the Cooperative Wildlife Research Unit Program was broadened to include 9 land-grant colleges representing recognized ecoregions...
Anthony J. Tesoriero, Hugh Liebscher, Stephen E. Cox
2000, Water Resources Research (36) 1545-1559
The rate and mechanism of nitrate removal along and between groundwater flow paths were investigated using a series of well nests screened in an unconfined sand and gravel aquifer. Intensive agricultural activity in this area has resulted in nitrate concentrations in groundwater often exceeding drinking water standards. Both the extent...
D.W. Willey, Charles van Riper III
2000, Journal of Raptor Research (34) 1-7
We studied first-year movements of Mexican Spotted Owls (Strix occidentalis lucida) during natal dispersal in canyonlands of southern Utah. Thirty-one juvenile Mexican Spotted Owls were captured and radiotracked during 1992-95 to examine behavior and conduct experiments related to the onset of natal dispersal. Juvenile Spotted Owls dispersed from their nest...
R.S. Hoffman, P. D. Capel, S.J. Larson
2000, Environmental Toxicology and Chemistry (19) 2249-2258
Little is known of the occurrence of pesticides in urban streams compared to streams draining agricultural areas. Water samples from eight urban streams from across the United States were analyzed for 75 pesticides and seven transformation products. For six of the eight urban streams, paired agricultural streams were used for...
T.J. Naimo, W.G. Cope, M.R. Bartsch
2000, Environmental Toxicology (15) 23-27
Porewater toxicity tests have been used as indicators of whole sediment toxicity. However, many species commonly tested in porewater predominately reside in the water column and otherwise have little to no direct contact with sediment and associated porewater. We assessed the feasibility of porewater toxicity tests with fingernail clams Musculium...
M.G. Barron, E. E. Little, R. Calfee, S. Diamond
2000, Environmental Toxicology and Chemistry (19) 920-925
The spectra and intensity of solar radiation (solar spectral irradiance [SSI]) was quantified in selected aquatic habitats in the vicinity of an oil field on the California coast. Solar spectral irradiance measurements consisted of spectral scans (280–700 nm) and radiometric measurements of ultraviolet (UV): UVB (280–320 nm) and UVA (320–400...