Nonlinear dynamics in ecosystem response to climatic change: Case studies and policy implications
Virginia R. Burkett, Douglas A. Wilcox, Robert Stottlemyer, Wylie Barrow, Dan Fagre, Jill Baron, Jeff Price, Jennifer L. Nielsen, Craig D. Allen, David L. Peterson, Greg Ruggerone, Thomas Doyle
2005, Ecological Complexity (2) 357-394
Many biological, hydrological, and geological processes are interactively linked in ecosystems. These ecological phenomena normally vary within bounded ranges, but rapid, nonlinear changes to markedly different conditions can be triggered by even small differences if threshold values are exceeded. Intrinsic and extrinsic ecological thresholds can lead to effects that cascade...
Demography and decline of the Mentasta caribou herd, Alaska
Kurt J. Jenkins, Neil L. Barten
2005, Canadian Journal of Zoology (83) 1174-1188
We evaluated population trends in the Mentasta caribou (Rangifer tarandus (L., 1758)) herd in Wrangell – St. Elias National Park and Preserve, Alaska, from 1990 to 1997 and determined factors contributing to its decline. We postulated that predation-related mortality of adult females and juveniles was the proximate cause of the decline,...
Spatial and temporal variations in the age structure of Arctic sea ice
G. I. Belchansky, David C. Douglas, Nikita G. Platonov
2005, Geophysical Research Letters (32)
Spatial and temporal variations in the age structure of Arctic sea ice are investigated using a new reverse chronology algorithm that tracks ice-covered pixels to their location and date of origin based on ice motion and concentration data. The Beaufort Gyre tends to harbor the oldest (>10 years old) sea...
Oceanographic conditions structure forage fishes into lipid-rich and lipid-poor communities in lower Cook Inlet, Alaska, USA
Alisa A. Abookire, John F. Piatt
2005, Marine Ecology Progress Series (287) 229-240
Forage fishes were sampled with a mid-water trawl in lower Cook Inlet, Alaska, USA, from late July to early August 1996 to 1999. We sampled 3 oceanographically distinct areas of lower Cook Inlet: waters adjacent to Chisik Island, in Kachemak Bay, and near the Barren Islands. In 163 tows using...
Allocating harvests among polar bear stocks in the Beaufort Sea
Steven C. Amstrup, George M. Durner, I. Stirling, T. L. McDonald
2005, Arctic (58) 247-259
Recognition that polar bears are shared by hunters in Canada and Alaska prompted development of the “Polar Bear Management Agreement for the Southern Beaufort Sea.” Under this Agreement, the harvest of polar bears from the southern Beaufort Sea (SBS) is shared between Inupiat hunters of Alaska and Inuvialuit hunters of...
Discovery of 100-160-year-old iceberg gouges and their relation to halibut habitat in Glacier Bay, Alaska
P.R. Carlson, P.N. Hooge, G.R. Cochrane
2005, American Fisheries Society Symposium (41) 235-243
Side-scan sonar and multibeam imagery of Glacier Bay, Alaska, revealed complex iceberg gouge patterns at water depths to 135 m on the floor of Whidbey Passage and south to the bay entrance. These previously undiscovered gouges likely formed more than 100 years ago as the glacier retreated rapidly up Glacier...
Capture-recapture methods in practice
Bryan F.J. Manly, Steven C. Amstrup, Trent L. McDonald
Steven C. Amstrup, Trent L. McDonald, Bryan F.J. Manly, editor(s)
2005, Book chapter, Handbook of capture-recapture analysis
No abstract available....
Avian cholera exposure and carriers in greater white-fronted geese breeding in Alaska, USA
Michael D. Samuel, Daniel J. Shadduck, Diana R. Goldberg
2005, Journal of Wildlife Diseases (41) 498-502
We conducted a 3-yr study (2001–03) on greater white-fronted geese (Anser albifrons frontalis) breeding in Alaska, USA, to determine the exposure of this population to Pasteurella multocida and the potential role of these birds as disease carriers. We tested sera from nearly 600 adult geese for antibodies to P. multocida serotype 1. We found...
Population size and trend of Yellow-billed Loons in northern Alaska
Susan L. Earnst, Robert A Stehn, Robert Platte, William W. Larned, Edward J. Mallek
2005, Condor (107) 289-304
The Yellow-billed Loon (Gavia adamsii) is of conservation concern due to its restricted range, small population size, specific habitat requirements, and perceived threats to its breeding and wintering habitat. Within the U.S., this species breeds almost entirely within the National Petroleum Reserve-Alaska, nearly all of which is open, or proposed...
Examples
Trent L. McDonald, Steven C. Amstrup, Eric V. Regehr, Bryan F.J. Manly
Steven C. Amstrup, Trent L. McDonald, Bryan F.J. Manly, editor(s)
2005, Book chapter, Handbook of capture-recapture analysis
No abstract available....
Distribution of pelagic forage fishes in relation to the oceanography of Glacier Bay
Mayumi L. Arimitsu, John F. Piatt, Marc D. Romano, David C. Douglas
2005, Book chapter, Proceedings of the Fourth Glacier Bay Science Symposium. U.S. Geological Survey Scientific Investigations Report 2007-5047, 246 p, 2004
Coastal iron fluxes to surface waters of the NE Pacific: A driver of the marine ecosystem and carbon cycle
John Crusius, J.L. Nielsen
2005, Report
Variations in the Arctic's multiyear sea ice cover: A neural network analysis of SMMR-SSM/I data, 1979-2004
G. I. Belchansky, David C. Douglas, V.A. Eremeev, Nikita G. Platonov
2005, Geophysical Research Letters (32) 1-4
A 26-year (1979-2004) observational record of January multiyear sea ice distributions, derived from neural network analysis of SMMR-SSM/I passive microwave satellite data, reveals dense and persistent cover in the central Arctic basin surrounded by expansive regions of highly fluctuating interannual cover. Following a decade of quasi equilibrium, precipitous declines in...
Habitat selection models for Pacific sand lance (Ammodytes hexapterus) in Prince William Sound, Alaska
William D. Ostrand, Tracey A. Gotthardt, Shay Howlin, Martin D. Robards
2005, Northwestern Naturalist (86) 131-143
We modeled habitat selection by Pacific sand lance (Ammodytes hexapterus) by examining their distribution in relation to water depth, distance to shore, bottom slope, bottom type, distance from sand bottom, and shoreline type. Through both logistic regression and classification tree models, we compared the characteristics of 29 known sand lance...
Paleoenvironmental analyses of an organic deposit from an erosional landscape remnant, Arctic Coastal Plain of Alaska
Wendy R. Eisner, James G. Bockheim, Kenneth M. Hinkel, Thomas A. Brown, Frederick E. Nelson, Kim M. Peterson, Benjamin M. Jones
2005, Palaeogeography, Palaeoclimatology, Palaeoecology (217) 187-204
The dominant landscape process on the Arctic Coastal Plain of northern Alaska is the formation and drainage of thaw lakes. Lakes and drained thaw-lake basins account for approximately 75% of the modern surface expression of the Barrow Peninsula. The thaw-lake cycle usually obliterates lacustrine or peat sediments from previous cycles,...
InSAR studies of Alaska volcanoes
Zhong Lu, Chuck Wicks, Daniel Dzurisin, John A. Power
2005, Korean Journal of Remote Sensing (21) 59-72
Interferometric synthetic aperture radar (InSAR) is a remote sensing technique capable of measuring ground surface deformation with sub-centimeter precision and spatial resolution in tens-ofmeters over a large region. This paper describes basics of InSAR and highlights our studies of Alaskan volcanoes with InSAR images acquired from European ERS-l and ERS-2,...
Brown bear habituation to people - Safety, risks, and benefits
Stephen Herrero, Tom Smith, Terry D. DeBruyn, Kerry Gunther, Colleen A. Matt
2005, Wildlife Society Bulletin (33) 362-373
Recently, brown bear (Ursus arctos) viewing has increased in coastal Alaska and British Columbia, as well as in interior areas such as Yellowstone National Park. Viewing is most often being done under conditions that offer acceptable safety to both people and bears. We analyze and comment on the underlying processes...
Seabird, fish, marine mammal, and oceanography coordinated investigations (SMMOCI) in Sitka Sound, Alaska, July 2000
John F. Piatt, Donald E. Dragoo
2005, U.S. Fish and Wildlife Service Report AMNWR 04/01
Surveys for seabirds and marine mammals were conducted in and near Sitka Sound, Alaska (Fig. 1) from the M/V Tiĝlax̂ during 12-16 July 2000 (Table 1, Fig. 1). The objective was to characterize the marine environment in the vicinity of St. Lazaria Island, one of ten seabird colonies monitored annually...
Association of ice and river channel morphology determined using ground-penetrationg radar in the Kuparuk River, Alaska
Heather Best, J. P. McNamara, Lee M. Liberty
2005, Arctic, Antarctic, and Alpine Research (37) 162
We collected ground-penetrating radar data at 10 sites along the Kuparuk River and its main tributary, the Toolik River, to detect unfrozen water beneath river ice. We used 250 MHz and 500 MHz antennas to image both the ice-water interface and the river channel in late April 2001, when daily...
Introduction to the handbook
Bryan F.J. Manly, Trent L. McDonald, Steven C. Amstrup
Steven C. Amstrup, Trent L. McDonald, Bryan F.J. Manly, editor(s)
2005, Book chapter, Handbook of capture-recapture analysis
In September of 1802, Pierre Simon Laplace (1749–1827) used a capture– recapture type of approach to estimate the size of the human population of France (Cochran 1978; Stigler 1986). At that time, live births were recorded for all of France on an annual basis. In the year prior to September...
Emperor Goose Anser canagicus
Joel A. Schmutz
Janet Kear, editor(s)
2005, Book chapter, Ducks, geese, and swans
No abstract available....
Linkages between climate, growth, competition at sea and production of sockeye salmon populations in Bristol Bay, 1955-2000
Jennifer L. Nielsen, Gregory T. Ruggerone
Sarah Behr, Helen Wiggins, Alison York, editor(s)
2005, Conference Paper, Proceedings of the open science meeting study of environmental Arctic change (SEARCH)
Bristol Bay, Alaska, supports one of the largest and most valuable salmon fisheries in the world. Salmon abundance in Bristol Bay and other northern areas more than doubled after the 1976–77 marine climate shift. However, in 1997–98, a major El Niño event led to unusual oceanographic conditions and Bristol Bay...
USA: Glacier National Park, Biosphere Reserve and GLORIA Site
Daniel B. Fagre
Cathy Lee, Thomas Schaaf, Paul Simmonds, editor(s)
2004, Conference Paper, Global change research in mountain biosphere reserves
The National Park Service of the United States has 388 designated protected areas and parks that include historic and cultural sites as well as ‘natural resource’ parks set aside for their unique and outstanding natural features. Early efforts to create parks were focused on areas of beauty or unusual features...
Mineral resource of the month: lead
Gerald R. Smith
2004, Geotimes (2004)
The United States is a major producer and consumer of refined lead, representing almost one quarter of total world production and consumption. Two mines in Alaska and six in Missouri accounted for 97 percent of domestic lead production in 2002. The United States also imports enough refined lead to satisfy...
Chloroethene biodegradation potential in the "lower" contaminant plume, River Terrace RV Park, Soldotna, Alaska
Paul M. Bradley, Frances H. Chapelle
2004, Open-File Report 2004-1427
No abstract available....
