Long-term trends in habitat use of offshore demersal fishes in western Lake Huron suggest large-scale ecosystem change
Stephen C. Riley, Jean V. Adams
2010, Transactions of the American Fisheries Society (139) 1322-1334
We estimated mean depths of capture for offshore demersal fish species, grouped into three habitat-based guilds (shallow benthic, pelagic, and deep benthic), using fall bottom trawl data (27–73 m) in the western main basin of Lake Huron from 1976 to 2007. The mean depth of capture of the shallow and...
Linking non-culturable (qPCR) and culturable enterococci densities with hydrometeorological conditions
Muruleedhara N. Byappanahalli, Richard L. Whitman, Dawn A. Shively, Meredith B. Nevers
2010, Science of the Total Environment (408) 3096-3101
Quantitative polymerase chain reaction (qPCR) measurement of enterococci has been proposed as a rapid technique for assessment of beach water quality, but the response of qPCR results to environmental conditions has not been fully explored. Culture-based E. coli and enterococci have been used in empirical predictive models to characterize their...
Lakewide estimates of alewife biomass and Chinook salmon abundance and consumption in Lake Ontario, 1989–2005: implications for prey fish sustainability
Brent A. Murry, Michael J. Connerton, Robert O’Gorman, Donald J. Stewart, Neil H. Ringlerd
2010, Transactions of the American Fisheries Society (139) 223-240
Stocking levels of Chinook salmon Oncorhynchus tshawytscha for Lake Ontario have been highly controversial since the early 1990s, largely because of uncertainties about lakewide abundance and rates of prey consumption. Previous estimates have focused on years before 1995; since then, however, the Lake Ontario ecosystem has undergone substantial changes, and...
Georeferencing the Large-Scale Aerial Photographs of a Great Lakes Coastal Wetland: A Modified Photogrammetric Method
Kurt P. Kowalski, Joel L. Grapentine
2010, Wetlands (30) 369-374
The geocontrol template method was developed to georeference multiple, overlapping analog aerial photographs without reliance upon conventionally obtained horizontal ground control. The method was tested as part of a long-term wetland habitat restoration project at a Lake Erie coastal wetland complex in the U.S. Fish and Wildlife Service Ottawa National...
Lake trout population dynamics in the Northern Refuge of Lake Michigan: Implications for future rehabilitation
Charles P. Madenjiana, Timothy J. Desorcie
2010, North American Journal of Fisheries Management (30) 629-641
The Northern Refuge was established in 1985 as part of the lake trout Salvelinus namaycush rehabilitation effort for Lake Michigan. To evaluate progress toward lake trout rehabilitation in the Northern Refuge, we conducted annual (1991–2008) gill-net surveys in the fall to assess the adult population and beam trawl surveys in...
Global mineral resource assessment
M. L. Zientek, J. M. Hammarstrom, K. M. Johnson, F. W. Pierce, editor(s)
2010, Scientific Investigations Report 2010-5090
Introduction In response to the growing demand for information on the global mineral-resource base, the U.S. Geological Survey (USGS) is conducting the Quantitative Global Mineral Resource Assessment Project (GMRAP), a cooperative international project, begun in 2002, to assess the world's undiscovered nonfuel mineral resources. Primary Objectives The USGS conducts national and global assessments...
Population trends of forest birds at Hakalau Forest National Wildlife Refuge, Hawai'i
Richard J. Camp, Thane K. Pratt, P. Marcos Gorresen, John J. Jeffrey, Bethany L. Woodworth
2010, The Condor (112) 196-212
The Hakalau Forest National Wildlife Refuge was established to protect native Hawaiian forest birds, particularly endangered species. Management for forest restoration on the refuge has consisted mainly of removing feral ungulates, controlling invasive alien plants, and reforesting former pastures. To assess effects of this habitat improvement for forest birds, we...
Whooping crane titers in response to eastern equine encephalitis immunization
Glenn H. Olsen
Barry K. Hartup, Richard P. Urbanek, editor(s)
2010, Conference Paper, Proceedings of the Eleventh North American Crane Workshop, 23-27 September 2008, Wisconsin Dells, Wisconsin, USA
No abstract available....
Bobcats (Lynx rufus)
Seth P.D. Riley, Erin E. Boydston, Kevin R. Crooks, Lisa M. Lyren
Stanley D. Gehrt, Seth P. D. Riley, Brian L. Cypher, editor(s)
2010, Book chapter, Urban Carnivores: Ecology, Conflict, and Conservation
7.2.3 Land Birds
Susan M. Haig
M.A. Hixon, S.V. Gregory, W.D. Robinson, editor(s)
2010, Book chapter, Oregon Climate Change Research Institute (2010), Oregon Climate Assessment Report
Tectonic, magmatic, and metamorphic history of the New Jersey Highlands: New insights from SHRIMP U-Pb geochronology
Richard A. Volkert, John N. Aleinikoff, C. Mark Fanning
Richard P. Tollo, Mervin J. Bartholomew, James P. Hibbard, Paul M. Karabinos, editor(s)
2010, Book chapter, From Rodinia to Pangea: The lithotectonic record of the Appalachian Region
Springs - A Florida Treasure
Howard L. Jelks
Margaret Ross Tolbert, editor(s)
2010, Book chapter, Aquiferious: 12 Florida Springs
The dirt on sediments
Loren M. Smith, Ned H. "Chip" Euliss Jr.
2010, National Wetlands Newsletter (32) 25-26
In the wetland science field, sediment deposition is often thought of as being beneficial especially when one thinks of coastal estuarine systems. For example, sediments deposited from streams and rivers are necessary to naturally build and maintain tidal marshes. These sediments come from eroded upland soils in the interior of...
The need for simultaneous evaluation of ecosystem services and land use change
Ned H. Euliss Jr., Loren M. Smith, Shu-Guang Liu, Min Feng, David M. Mushet, Roger F. Auch, Thomas R. Loveland
2010, Environmental Science & Technology (44) 7761-7763
We are living in a period of massive global change. This rate of change may be almost without precedent in geologic history (1). Even the most remote areas of the planet are influenced by human activities. Modern landscapes have been highly modified to accommodate a growing human population that the...
Factors associated with hunter success for ducks on state-owned lands in Illinois, USA
Joshua D. Stafford, Aaron T. Pearse, Christopher S. Hine, Aaron P. Yetter, Michelle M. Horath
2010, Wildlife Biology (16) 113-122
Factors that influence hunter success for waterfowl are subject to varying levels of control by managers. The relative influence of these factors is poorly understood, but such information may be valuable to guide management actions intended to promote successful hunting and communicate management decisions to constituents. We used bag-check data...
On the road again for a bird survey that counts
Dave Ziolkowski Jr., Keith Pardieck, John R. Sauer
2010, Birding (42) 32-41
Nitrogen-limitation and invasive sweetclover impacts vary between two Great Plains plant communities
Laura C. Van Riper, Diane L. Larson, Jennifer L. Larson
2010, Biological Invasions (12) 2735-2749
Yellow sweetclover is an exotic herbaceous legume common in the Great Plains of the US. Although woody legumes have been shown to affect ecosystem processes through nitrogen (N) fixation (i.e., they can be considered "transformers" sensu Richardson et al. (2000)), the same has not been shown for short-lived herbaceous species....
Multilocus patterns of nucleotide polymorphism and demographic change in Taxodium distichum (Cupressaceae) in the lower Mississippi River alluvial valley
Junko Kusumi, Li Zidong, Tomoyuki Kado, Yoshihiko Tsumura, Beth A. Middleton, Hidenori Tachida
2010, American Journal of Botany (97) 1848-1857
• Premise of the Study: Studies of the geographic patterns of genetic variation can give important insights into the past population structure of species. Our study species, Taxodium distichum L. (bald‐cypress), prefers riparian and wetland habitats and is widely distributed in southeastern North America and Mexico. We compared the genetic variation of T. distichum with that...
Colloidal and physical transport textures exhibited by electrum and naumannite in bonanza epithermal veins from western USA, and their significance
James A. Saunders, Peter G. Vikre, Derick L. Unger, Lee Beasley
2010, Conference Paper, Great Basin evolution and metallogeny : Geological Society of Nevada, 2010 Symposium, May 14-22
It is reasonably clear that disequilibrium or “far-from equilibrium” conditions lead to the formation of silica colloids and their deposition in many epithermal deposits. This implies ore-forming solutions had elevated concentrations of dissolved silica, well in excess of amorphous silica saturation. We have previously demonstrated that such colloidal silica particles...
Molecular phylogeny of the spoonbills (Aves: Threskiornithidae) based on mitochondrial DNA
R. Terry Chesser, Carol K.L. Yeung, Cheng-Te Yao, Xiu-Hua Tian, Shou-Hsien Li
2010, Zootaxa (2603) 53-60
Spoonbills (genus Platalea) are a small group of wading birds, generally considered to constitute the subfamily Plataleinae (Aves: Threskiornithidae). We reconstructed phylogenetic relationships among the six species of spoonbills using variation in sequences of the mitochondrial genes ND2 and cytochrome b (total 1796 bp). Topologies of phylogenetic trees reconstructed using...
Models for inference in dynamic metacommunity systems
Robert M. Dorazio, Marc Kery, J. Andrew Royle, Matthias Plattner
2010, Ecology (91) 2466-2475
A variety of processes are thought to be involved in the formation and dynamics of species assemblages. For example, various metacommunity theories are based on differences in the relative contributions of dispersal of species among local communities and interactions of species within local communities. Interestingly, metacommunity theories continue to be...
Microbial production of isotopically light iron(II) in a modern chemically precipitated sediment and implications for isotopic variations in ancient rocks
G.E. Tangalos, B.L. Beard, C.M. Johnson, Charles N. Alpers, E.S. Shelobolina, H. Xu, H. Konishi, E. E. Roden
2010, Geobiology (8) 197-208
The inventories and Fe isotope composition of aqueous Fe(II) and solid-phase Fe compounds were quantified in neutral-pH, chemically precipitated sediments downstream of the Iron Mountain acid mine drainage site in northern California, USA. The sediments contain high concentrations of amorphous Fe(III) oxyhydroxides [Fe(III)am] that allow dissimilatory iron reduction (DIR) to...
Phytoestrogens and mycotoxins in Iowa streams: An examination of underinvestigated compounds in agricultural basins
Dana W. Kolpin, Corinne C. Hoerger, Michael T. Meyer, Felix E. Wettstein, Laura E. Hubbard, Thomas D. Bucheli
2010, Journal of Environmental Quality (39) 2089-2099
This study provides the first broad-scale investigation on the spatial and temporal occurrence of phytoestrogens and mycotoxins in streams in the United States. Fifteen stream sites across Iowa were sampled five times throughout the 2008 growing season to capture a range of climatic and crop-growth conditions. Basin size upstream from...
Isle Royale study affirms the ability of wolves to persist
Dave Mech, Matthew A. Cronin
2010, Biological Conservation (143) 535-536
Intraspecific variation in gill morphology of juvenile Nile perch, Lates niloticus, in Lake Nabugabo, Uganda
Jaclyn A. Paterson, Lauren J. Chapman, Pamela J. Schofield
2010, Environmental Biology of Fishes (88) 97-104
Several studies have demonstrated intraspecific variation in fish gill size that relates to variation in dissolved oxygen (DO) availability across habitats. In Lake Nabugabo, East Africa, ecological change over the past 12 years has coincided with a shift in the distribution of introduced Nile perch such that a larger proportion...
