L.D. Igl
2003, The Wilson Bulletin (115) 210-212
Abstract has not been submitted...
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Publication Extents
Not all publications have extents, not all extents are completely accurateMary P. Henson, Roger A. Bergstedt, Jean V. Adams
2003, Journal of Great Lakes Research (29) 204-213
The ability to predict when sea lampreys (Petromyzon marinus) will metamorphose from the larval phase to the parasitic phase is essential to the operation of the sea lamprey control program. During the spring of 1994, two populations of sea lamprey larvae from two rivers were captured, measured, weighed, implanted with...
Roger A. Bergstedt, Ray L. Argyle, James G. Seelye, Kim T. Scribner, Gary L. Curtis
2003, Journal of Great Lakes Research (29) 347-361
Records of the temperatures occupied by 33 lake trout (Salvelinus namaycush) at large in Lake Huron were obtained for up to 14 months per fish, at 75-minute intervals, from surgically implanted archival temperature tags. The dataset covered nearly three years, from October 1998 to June 2001, and included 160,000 observations....
S. A. Johnson, J.S. Staiger, W.J. Barichivich, S. Barlow
2003, Herpetological Review (34) 381-381
No abstract available....
Michael A. Bogan, Paul M. Cryan, Ernest W. Valdez, Laura E. Ellison, Thomas J. O’Shea
2003, Book chapter, Monitoring trends in bat populations of the United States and territories: Problems and prospects (Information and Technology Report 2003-0003)
Among the 45 species of bats that occur in the United States (U.S.), 34 species regularly occur in western regions of the country. Many of these “western” species choose roost sites in crevices or cavities. Herein we provide an introduction to the biology of bats that roost in cavities...
Robert J. Young, Michael L. Jones, James R. Bence, Rodney B. McDonald, Katherine M. Mullett, Roger A. Bergstedt
2003, Journal of Great Lakes Research (29) 214-225
The Great Lakes Fishery Commission uses time series of transformer, parasitic, and spawning population estimates to evaluate the effectiveness of its sea lamprey (Petromyzon marinus) control program. This study used an inverse variance weighting method to integrate Lake Huron sea lamprey population estimates derived from two estimation procedures: 1) prediction...
Steve A. Johnson, Jennifer S. Staiger, William J. Barichivich
2003, Herpetological Review (34) 161
Abstract not supplied at this time...
S.E. Rittman, E. Muths, D. E. Green
2003, Herpetological Review (34) 53-53
The chytrid fungus Batrachochytrium dendrobatidis is a known pathogen of anuran amphibians, and has been correlated with amphibian die-offs worldwide (Daszak et. al. 1999. Emerging Infectious Diseases 5:735-748). In Colorado, B. dendrobatidis has infected Boreal toads (Bufo boreas) (Muths et. al., in review) and has been identified on museum specimens...
J.M. Emlen, D.C. Freeman, J.H. Graham
2003, Book chapter, Developmental instability: Causes and consequences
Abstract not available ...
C.M. Bridges, C. L. Rowe, W. A. Hopkins
2003, Book chapter, Amphibian decline: An integrated analysis of multiple stressor effects
No abstract available....
Kathleen M. Longshore, Jef R. Jaeger, J. Mark Sappington
2003, Journal of Herpetology (37) 169-177
Survival of adult Desert Tortoises (Gopherus agassizii) appears related to site-specific variation in precipitation and productivity of annual plants. We studied adult tortoise survival rates at two closely situated, but physiographically different, sites in the eastern Mojave Desert over a nine-year period (spring 1992 to spring 2001). Survival rates were...
K. G. McCracken, J. Hemmings, D.C. Paton, A. D. Afton
2003, Wildfowl (54) 211-241
Musk Ducks Biziura lobata are endemic to wetlands, river systems and coastal oceanic waters of temperate Australia. Individuals of this species are difficult to capture because of their excellent swimming and diving abilities and frequent use of deep-water habitats. Night-lighting, baited clover-leaf traps and walk-in-nest-traps were used to capture Musk...
M.H. Meeuwig, J.M. Bayer, J.G. Seelye, R.A. Reiche
2003, Report
Two fundamental aspects of lamprey biology were examined to provide tools for population assessment and determination of critical habitat needs of Columbia River Basin (CRB) lampreys (the Pacific lamprey, Lampetra tridentata, and the western brook lamprey, L. richardsoni). We evaluated the usefulness of current diagnostic characteristics for identification of larval...
V.E. Langenheim, R.C. Jachens
2003, Geophysical Research Letters (30) 51-1
A 70-km-wide belt of magnetic highs extends ???1200 km northwest from the southern tip of the Baja California peninsula into southern California. The anomalies are caused by the mafic western belt of the Peninsular Ranges batholith, which is exposed extensively along the northern 800 km length of the magnetic belt....
P.J. Connolly
2003, Report
Abstract not available ...
Greg L. Linder
Greg L. Linder, Sherry K. Krest, Donald W. Sparling, editor(s)
2003, Book chapter, Amphibian decline: An integrated analysis of multiple stressor effects (Proceedings from the workshop on the global decline of amphibian populations)
No abstract available. ...
Angela M. Doroff, James A. Estes, M. Tim Tinker, Douglas M. Burn, Thomas J. Evans
2003, Journal of Mammalogy (84) 55-64
Sea otter (Enhydra lutris) populations were exploited to near extinction and began to recover after the cessation of commercial hunting in 1911. Remnant colonies of sea otters in the Aleutian archipelago were among the first to recover; they continued to increase through the 1980s but declined abruptly during the 1990s....
S.D. Evans, L.S Wright, C. D. Smith, R.E. Wardell, N.S. Adams, D.W. Rondorf
2003, Report
Abstract not available ...
Kembra L. Howdeshell, Paul H. Peterman, Barbara M. Judy, Julia A. Taylor, Carl E. Orazio, Rachel L. Ruhlen, Frederick S. vom Saal, Wade V. Welshons
2003, Environmental Health Perspectives (111) 1180-1187
Bisphenol A (BPA) is a monomer with estrogenic activity that is used in the production of food packaging, dental sealants, polycarbonate plastic, and many other products. The monomer has previously been reported to hydrolyze and leach from these products under high heat and alkaline conditions, and the amount of leaching...
Elke Schuster, S. Shea Johnson, Jonathan G. Taylor
2003, Open-File Report 2003-444
A substantial amount of backcountry (about 250,000 acres) in Rocky Mountain National Park [RMNP of the Park] may be designated as wilderness areas in the coming years. Currently, over 3 million visitors drives through the park on Trail Ridge Road, camp in designated campgrounds, day hike, etc. each year. Many...
A. H. Manning, D. K. Solomon
2003, Conference Paper, Journal of Hydrology
Mountain-front recharge is a major component of recharge to inter-mountain basin-fill aquifers. The two components of mountain-front recharge are (1) subsurface inflow from the mountain block (subsurface inflow), and (2) infiltration from perennial and ephemeral streams near the mountain front (stream seepage). The magnitude of subsurface inflow is of central...
L.A. Harrington, E. Biggins, A.W. Alldredge
2003, Journal of Mammalogy (84) 497-504
Black-footed ferrets (Mustela nigripes) and Siberian polecats (M. eversmannii) are medium-sized (about 1 kg) mustelids with similar ecological and morphological characteristics. We measured basal metabolic rates (BMR) for both species. In contrast with the commonly stated belief that mustelids have relatively high mass-specific BMR, neither the BMR of ferrets nor...
C. K. Harris, B. Butman, P. Traykovski
2003, Continental Shelf Research (23) 801-820
The Hudson Shelf Valley is a bathymetric low that extends across the continental shelf offshore of New York and New Jersey. From December 1999 to April 2000 a field experiment was carried out to investigate the transport of sediment in the shelf and valley system. Near-bed tripods and water-column moorings...
A.H. Farmer, R. Rye, G. Landis, C. Bern, C. Kester, I. Ridley
2003, Isotopes in Environmental and Health Studies (39) 169-177
We evaluated the potential use of stable isotopes to establish linkages between the wintering grounds and the breeding grounds of the Pectoral Sandpiper (Calidris melanotos), the White-rumped Sandpiper (Calidris fuscicollis), the Baird's Sandpiper (Calidris bairdii), and other Neotropical migratory shorebird species (e.g., Tringa spp.). These species molt their flight feathers...
Randolph L. Kirk, Elpitha Howington-Kraus, Bonnie L. Redding, Donna M. Galuszka, Trent M. Hare, Brent A. Archinal, Laurence A. Soderblom, Janet M. Barrett
2003, Journal of Geophysical Research E: Planets (108)
We analyzed narrow‐angle Mars Orbiter Camera (MOC‐NA) images to produce high‐resolution digital elevation models (DEMs) in order to provide topographic and slope information needed to assess the safety of candidate landing sites for the Mars Exploration Rovers (MER) and to assess the accuracy of our results by a variety of...