Water quality of the Crescent River basin, Lake Clark National Park and Preserve, Alaska, 2003-2004
Timothy P. Brabets, Robert T. Ourso
2006, Scientific Investigations Report 2006-5151
The U.S. Geological Survey and the National Park Service conducted a water-quality investigation of the Crescent River Basin in Lake Clark National Park and Preserve from May 2003 through September 2004. The Crescent River Basin was studied because it has a productive sockeye salmon run that is important to the...
Effects of abdominally implanted radiotransmitters with percutaneous antennas on migration, reproduction, and survival of Canada geese
Jerry W. Hupp, John M. Pearce, Daniel M. Mulcahy, David A. Miller
2006, Journal of Wildlife Management (70) 812-822
Abdominally implanted radiotransmitters with percutaneous antennas are increasingly used to monitor movements, survival, and reproduction of waterbirds. However, there has been relatively little assessment of the effects of such radios on avian demographic parameters or migration. We implanted either a 26- or 35-g abdominal transmitter with percutaneous antenna in 198...
Large rock avalanches triggered by the M 7.9 Denali Fault, Alaska, earthquake of 3 November 2002
R.W. Jibson, E. L. Harp, W. Schulz, D. K. Keefer
2006, Engineering Geology (83) 144-160
The moment magnitude (M) 7.9 Denali Fault, Alaska, earthquake of 3 November 2002 triggered thousands of landslides, primarily rock falls and rock slides, that ranged in volume from rock falls of a few cubic meters to rock avalanches having volumes as great as 20 ?? 106 m3. The pattern of...
Long-term golden eagle studies in Denali National Park and Preserve
Carol L. McIntyre, Karen Steenhof, Michael N. Kochert, Michael W. Collopy
2006, Alaska Park Science (5) 42-45
Habitat-based adaptive management at Mount Haggin Wildlife Management Area
R.B. Keigley, C.W. Fager
2006, Alces (42) 49-54
The 22,743-hectare Mount Haggin Wildlife Management Area was purchased in 1976, in part for moose (Alces alces) winter range. Observed moose populations climbed from a low of 7 in 1976 to a high of 56 in 2000. A 4-step management program was initiated in 2000 consisting of definition of management...
Vascular flora of Izembek National Wildlife Refuge, westernmost Alaska Peninsula, Alaska
Stephen S. Talbot, Sandra Looman Talbot, Wilfred B. Schofield
2006, Rhodora (108) 249-293
The vascular flora of Izembek National Wildlife Refuge (NWR), where few previous collections had been reported, was collected and recorded at sites selected to represent the totality of environmental variation. A total of 349 species (339 native and 10 introduced) was identified. To provide a comparative phytogeographic framework, we analyzed...
Atmospheric deposition of current-use and historic-use pesticides in snow at National Parks in the Western United States
K.J. Hageman, S.L. Simonich, K. Campbell, G.R. Wilson, D.H. Landers
2006, Environmental Science & Technology (40) 3174-3180
The United States (U.S.) National Park Service has initiated research on the atmospheric deposition and fate of semi-volatile organic compounds in its alpine, sub-Arctic, and Arctic ecosystems in the Western U.S. Results for the analysis of pesticides in seasonal snowpack samples collected in spring 2003 from seven national parks are...
Microsatellite DNA and mitochondrial DNA variation in polar bears (Ursus maritimus) from the Beaufort and Chukchi seas, Alaska
M. A. Cronin, Steven C. Amstrup, K.T. Scribner
2006, Canadian Journal of Zoology (84) 655-660
Radiotelemetry data have shown that polar bears (Ursus maritimus Phipps, 1774) occur in separate subpopulations in the Chukchi Sea and the southern Beaufort Sea. However, segregation is not absolute, and there is overlap of ranges of animals in each subpopulation. We used genetic variation at eight microsatellite DNA loci and...
Stand and landscape level effects of a major outbreak of spruce beetles on forest vegetation in the Copper River Basin, Alaska
J. L. Allen, S. Wesser, C. J. Markon, K.C. Winterberger
2006, Forest Ecology and Management (227) 257-266
From 1989 to 2003, a widespread outbreak of spruce beetles (Dendroctonus rufipennis) in the Copper River Basin, Alaska, infested over 275,000 ha of forests in the region. During 1997 and 1998, we measured forest vegetation structure and composition on one hundred and thirty-six 20-m ?? 20-m plots to assess both...
Traversing a boreal forest landscape: Summer movements of Tule Greater White-fronted Geese
Craig R. Ely, K.S. Bollinger, Jerry W. Hupp, D.V. Derksen, J. Terenzi, John Y. Takekawa, D.L. Orthmeyer, T.C. Rothe, M.J. Petrula, D.R. Yparraguirre
2006, Waterbirds (29) 43-55
We monitored the movement, distribution and site affinities of radio-marked Tule Greater White-fronted Geese (Anser albifrons elgasi) during spring and summer in Alaska, 1994-1997 and 2004. Our assessment of summer movements was comprehensive, as locations were obtained during prenesting, nesting, and molt for over 90% of geese with active radios...
Predator functional response and prey survival: Direct and indirect interactions affecting a marked prey population
David A. Miller, J.B. Grand, T.F. Fondell, M. Anthony
2006, Journal of Animal Ecology (75) 101-110
1. Predation plays an integral role in many community interactions, with the number of predators and the rate at which they consume prey (i.e. their functional response) determining interaction strengths. Owing to the difficulty of directly observing predation events, attempts to determine the functional response of predators in natural systems...
On the absence of InSAR-detected volcano deformation spanning the 1995-1996 and 1999 eruptions of Shishaldin Volcano, Alaska
S.C. Moran, O. Kwoun, Timothy Masterlark, Z. Lu
2006, Journal of Volcanology and Geothermal Research (150) 119-131
Shishaldin Volcano, a large, frequently active basaltic-andesite volcano located on Unimak Island in the Aleutian Arc of Alaska, had a minor eruption in 1995–1996 and a VEI 3 sub-Plinian basaltic eruption in 1999. We used 21 synthetic aperture radar images acquired by ERS-1, ERS-2, JERS-1,...
Storage and interaction of compositionally heterogeneous magmas from the 1986 eruption of Augustine Volcano, Alaska
Diana C. Roman, Katharine V. Cashman, Cynthia A. Gardner, Paul J. Wallace, John J. Donovan
2006, Bulletin of Volcanology (68) 240-254
Compositional heterogeneity (56–64 wt% SiO2 whole-rock) in samples of tephra and lava from the 1986 eruption of Augustine Volcano, Alaska, raises questions about the physical nature of magma storage and interaction beneath this young and frequently active volcano. To determine conditions of magma storage and evolutionary histories of compositionally distinct magmas, we...
Murre eggs (Uria aalge and Uria lomvia) as indicators of mercury contamination in the Alaskan marine environment
Russel D. Day, Stacy S. Vander Pol, Steven J. Christopher, W.C. Davis, Rebecca S. Pugh, Kristin S. Simac, David G. Roseneau, P.R. Becker
2006, Environmental Science & Technology (40) 659-665
Sixty common murre (Uria aalge) and 27 thick-billed murre (Uria lomvia) eggs collected by the Seabird Tissue Archival and Monitoring Project (STAMP) in 1999−2001 from two Gulf of Alaska and three Bering Sea nesting colonies were analyzed for total mercury (Hg) using isotope dilution cold vapor inductively coupled mass spectrometry....
Site-specific effects on productivity of an upper trophic-level marine predator: Bottom-up, top-down, and mismatch effects on reproduction in a colonial seabird
R.M. Suryan, D.B. Irons, E.D. Brown, P.G.R. Jodice, D.D. Roby
2006, Progress in Oceanography (68) 303-328
We investigated the relative roles of bottom-up and top-down factors in limiting productivity of an upper trophic level marine predator. Our primary working hypothesis was that the reproductive success of black-legged kittiwakes (Rissa tridactyla) a piscivorous, colonial-nesting seabird, was most limited by the abundance, distribution, and species composition of surface-schooling...
Interrelationships of Denali's large mammal community
Layne G. Adams, Thomas J. Meier, Patricia Owen, Gretchen H. Roffler
2006, Alaska Park Science (5) 36-40
Along with its sweeping mountain landscapes, Denali National Park and Preserve (Denali) is probably best known for opportunities to observe the large mammals common to Interior Alaska. Locally known as the “Big Five,” gray wolves (Canis lupus), grizzly bears (Ursus arctos),moose (Alces alces), caribou (Rangifer tarandus) and Dall sheep (Ovis...
Geochemical constraints on the genesis of the Scheelite dome intrusion-related gold deposit, Tombstone gold belt, Yukon, Canada
J.L. Mair, R.J. Goldfarb, C. A. Johnson, C.J.R. Hart, E.E. Marsh
2006, Economic Geology (101) 523-553
The Scheelite dome intrusion-related gold deposit, western Selwyn basin, Yukon, is hosted in hornfelsed metasedimentary strata that lie adjacent to the exposed apices of a monzogranite to quartz monzonite plutonic complex of the mid-Cretaceous Tombstone-Tungsten magmatic belt, Tintina gold province, Alaska and Yukon. A variety of mineralization styles occur throughout...
Interferometric synthetic aperture radar: Building tomorrow's tools today
Zhong Lu
2006, Alaska Satellite Facility News and Notes (15) 12-14
A synthetic aperture radar (SAR) system transmits electromagnetic (EM) waves at a wavelength that can range from a few millimeters to tens of centimeters. The radar wave propagates through the atmosphere and interacts with the Earth’s surface. Part of the energy is reflected back to the SAR system and recorded....
Growth history of Kilauea inferred from volatile concentrations in submarine-collected basalts
Michelle L. Coombs, Thomas W. Sisson, Peter W. Lipman
2006, Journal of Volcanology and Geothermal Research (151) 19-49
Major-element and volatile (H2O, CO2, S) compositions of glasses from the submarine flanks of Kilauea Volcano record its growth from pre-shield into tholeiite shield-stage. Pillow lavas of mildly alkalic basalt at 2600–1900 mbsl on the upper slope of the south flank are an intermediate link...
North Slope, Alaska: Source rock distribution, richness, thermal maturity, and petroleum charge
K. E. Peters, L. B. Magoon, K. J. Bird, Z. C. Valin, M.A. Keller
2006, American Association of Petroleum Geologists Bulletin (90) 261-292
Four key marine petroleum source rock units were identified, characterized, and mapped in the subsurface to better understand the origin and distribution of petroleum on the North Slope of Alaska. These marine source rocks, from oldest to youngest, include four intervals: (1) Middle-Upper Triassic Shublik Formation, (2) basal condensed section...
Increased energy expenditure by a seabird in response to higher food abundance
P.G.R. Jodice, D.D. Roby, R.M. Suryan, D.B. Irons, K.R. Turco, E.D. Brown, J.F. Thedinga, G. Henk Visser
2006, Marine Ecology Progress Series (306) 283-293
Variability in forage fish abundance strongly affects seabird behavior and reproductive success, although details of this relationship are unclear. During 1997 and 1998, we measured (1) daily energy expenditure (DEE) of 80 parent black-legged kittiwakes Rissa tridactyla at 2 colonies in Prince William Sound, Alaska (North Icy Bay and Shoup...
Minding the gap: Frequency of indels in mtDNA control region sequence data and influence on population genetic analyses
John M. Pearce
2006, Molecular Ecology (15) 333-341
Insertions and deletions (indels) result in sequences of various lengths when homologous gene regions are compared among individuals or species. Although indels are typically phylogenetically informative, occurrence and incorporation of these characters as gaps in intraspecific population genetic data sets are rarely discussed. Moreover, the impact of gaps on estimates...
Factors affecting distribution of wood, detritus, and sediment in headwater streams draining managed young-growth red alder - Conifer forests in southeast Alaska
T. Gomi, A.C. Johnson, R.L. Deal, P.E. Hennon, E.H. Orlikowska, M.S. Wipfli
2006, Canadian Journal of Forest Research (36) 725-737
Factors (riparian stand condition, management regimes, and channel properties) affecting distributions of wood, detritus (leaves and branches), and sediment were examined in headwater streams draining young-growth red alder (Alnus rubra Bong.) - conifer riparian forests (<40 years old) in southeast Alaska. More riparian red alder were found along streams affected...
Demography, genetics, and the value of mixed messages
John M. Pearce, Sandra L. Talbot
2006, Condor (108) 474-479
Iverson et al. (2004) used estimates of the homing rate for molting adult Harlequin Ducks (Histrionicus histrionicus) in Alaska to draw inferences about population structure. Homing rates, defined as one minus the ratio of birds recaptured elsewhere to those recaptured at the original banding site, were high (0.95–1.00) for males...
North Kona slump: Submarine flank failure during the early(?) tholeiitic shield stage of Hualalai Volcano
P. W. Lipman, M.L. Coombs
2006, Journal of Volcanology and Geothermal Research (151) 189-216
The North Kona slump is an elliptical region, about 20 by 60 km (1000-km2 area), of multiple, geometrically intricate benches and scarps, mostly at water depths of 2000–4500 m, on the west flank of Hualalai Volcano. Two dives up steep scarps in the slump area were made in September 2001,...
