Arctic nesting geese: Alaskan populations
Jerry W. Hupp, Robert A. Stehn, Craig R. Ely, Dirk V. Derksen
Edward T. LaRoe, Gaye S. Farris, Catherine E. Puckett, Peter D. Doran, Michael J. Mac, editor(s)
1995, Book chapter, Our living resources: A report to the nation on the distribution, abundance, and health of U.S. plants, animals, and ecosystems
North American populations of most goose species have remained stable or have increased in recent decades (USFWS and Canadian Wildlife Service 1986). Some populations, however, have declined or historically have had small numbers of individuals, and thus are of special concern. Individual populations of geese should be maintained to ensure...
Northern Pintail (Anas acuta)
J. E. Austin, M. R. Miller
A. Poole, F. Gill, editor(s)
1995, Book chapter, The Birds of North America
The Northern Pintail is a medium-sized dabbling duck of slender, elegant lines and conservative plumage coloration. It is circumpolar in distribution and abundant in North America, with core nesting habitat in Alaska and the Prairie Pothole Region of southern Canada and the northern Great Plains. Breeders favor shallow wetlands interspersed...
Sea otters in the northern Pacific Ocean
James L. Bodkin, Ronald J. Jameson, James A. Estes
Edward T. LaRoe, Gaye S. Farris, Catherine E. Puckett, Peter D. Doran, Michael J. Mac, editor(s)
1995, Book chapter, Our living resources: A report to the nation on the distribution, abundance, and health of U.S. plants, animals, and ecosystems
About 250 years ago sea otters (Enhydra lutris) were distributed continuously from central Baja California, north and west along the Pacific Rim to Machatka Peninsula in Russia, and south along the Kuril Island to northern Japan (Kenyon 1969; Fig. 1a). Several hundred thousand sea otters may have occurred in the...
ENSO events in the northern Gulf of Alaska, and effects on selected marine fisheries
K.M. Bailey, S.A. Macklin, R.K. Reed, R.D. Brodeur, W.J. Ingraham, John F. Piatt, M. Shima, R.C. Francis, P.J. Anderson, T.C. Royer, A. Hollowed, D.A. Somerton, W.S. Wooster
1995, Report
The 1991-93 El Nino-Southern Oscillation (ENSO) event first appeared in the northern Gulf of Alaska in autumn 1991 with warm sea-surface temperatures. In winter 1992, there were pulses of increased sea level and anomalous circulation. El Nino conditions persisted at least through summer 1993. The effects of this ENSO event...
High-pressure amphibolite facies dynamic metamorphism and the Mesozoic tectonic evolution of an ancient continental margin, east- central Alaska
Cynthia Dusel-Bacon, V. L. Hansen, J.A. Scala
1995, Journal of Metamorphic Geology (13) 9-24
Ductilely deformed amphibolite facies tectonites comprise two adjacent terranes in east-central Alaska: the northern, structurally higher Taylor Mountain terrane and the southern, structurally lower Lake George subterrane of the Yukon-Tanana terrane. The pressure, temperature, kinematic and age data are interpreted to indicate that the metamorphism of the Taylor Mountain terrane...
Genetic variation in domestic reindeer and wild caribou in Alaska
M. Cronin, L. Renecker, Barbara J. Pierson, J.C. Patton
1995, Animal Genetics (26) 427-434
Reindeer were introduced into Alaska 100 years ago and have been maintained as semidomestic livestock. They have had contact with wild caribou herds, including deliberate cross-breeding and mixing in the wild. Reindeer have considerable potential as a domestic animal for meat or velvet antler production, and wild caribou are important...
Simulation of interaction between ground water in an alluvial aquifer and surface water in a large braided river
S. A. Leake, M. R. Lilly
1995, Conference Paper, International Symposium on Groundwater Management - Proceedings
The Fairbanks, Alaska, area has many contaminated sites in a shallow alluvial aquifer. A ground-water flow model is being developed using the MODFLOW finite-difference ground-water flow model program with the River Package. The modeled area is discretized in the horizontal dimensions into 118 rows and 158 columns of approximately 150-meter...
Pattern of shoreline spawning by sockeye salmon in a glacially turbid lake: Evidence for subpopulation differentiation
C. V. Burger, J.E. Finn, L. Holland-Bartels
1995, Transactions of the American Fisheries Society (124) 1-15
Alaskan sockeye salmon Oncorhynchus nerka typically spawn in lake tributaries during summer (early run) and along clear‐water lake shorelines and outlet rivers during fall (late run). Production at the glacially turbid Tustumena Lake and its outlet, the Kasilof River (south‐central Alaska), was thought to be limited to a single...
Prey preference of Pacific halibut (Hippoglossus stenolepis) in Glacier Bay National Park
Liz Chilton, Philip N. Hooge, S. James Taggart
Daniel R. Engstrom, editor(s)
1995, Conference Paper, Proceedings of the third Glacier Bay science symposium
Stomach contents were collected from sport-caught halibut in Glacier Bay National Park. Stomach samples containing a combination of fish and invertebrate species were observed less frequently than expected. Small, subtidal, noncommercial crab and cod-like fish (Gadidae) appear to be the most important prey items. In thc dict of Pacific halibut....
Nearshore distribution and abundance of Dungeness crabs in Glacier Bay National Park, Alaska
Charles E. O’Clair, J. Lincoln Freese, Robert P. Stone, Thomas C. Shirley, Erica H. Leder, S. James Taggart, Gordon H. Kruse
Daniel R. Engstrom, editor(s)
1995, Conference Paper, Proceedings of the third Glacier Bay science symposium
As part of an ongoing, multi-agency study to determine the effects of closure of the commercial fishery for Dungeness crabs, Cancer magister, on crab population structure we examined patterns of distribution and abundance of crabs in nearshore habitats at five locations in and near Glacier Bay National Park. Sampling was...
Mesothermal gold deposits of Westland, New Zealand and southern Alaska: Products of similar tectonic processes?
R.J. Goldfarb, T. Christie, D. Skinner, Peter J. Haeussler, D. C. Bradley
Jeffrey L. Mauk, George, editor(s)
1995, Conference Paper, Proceedings of the 1995 Pacific Rim Congress
No abstract available....
Release strategies for rehabilitated sea otters
Anthony R. DeGange, Brenda E. Ballachey, Keith Bayha
Terrie M. Williams, Randall W. Davis, editor(s)
1995, Book chapter, Emergency care and rehabilitation of oiled sea otters: A guide for oil spils involving fur-bearing marine mammals
According to the U.S. Fish and Wildlife Services’ (USFWS) Response Plan for sea otters (USFWS, in preparation), in the event of an oil spill, the decision to release sea otters from rehabilitation centers following treatment will be linked to the decision on whether to capture sea otters for treatment. Assuming...
Winter wolf predation in a multiple ungulate prey system, Gates of the Arctic National Park, Alaska
Bruce W. Dale, Layne G. Adams, R. Terry Bowyer
Ludwig N. Carbyn, Steven H. Fritts, Dale R. Seip, editor(s)
1995, Occasional Publication of the Canadian Circumpolar Institute 35
We investigated patterns of winter wolf predation, including prey selection, prey switching, kill rates, carcass utilization, and consumption rates for four wolf packs during three different study periods (March 1989, March 1990, and November 1990) in Gates of the Arctic National Park and Preserve, Alaska. Wolves killed predominantly caribou (165...
Western North American shorebirds
Robert E. Gill Jr., Colleen M. Handel, Gary W. Page
Edward T. LaRoe, Gaye S. Farris, Catherine E. Puckett, Peter D. Doran, Michael J. Mac, editor(s)
1995, Book chapter, Our living resources: A report to the nation on the distribution, abundance, and health of U.S. plants, animals, and ecosystems
Shorebirds are a diverse group that includes oystercatchers, stilts, avocets, plovers, and sandpipers. They are familiar birds of seashores, mudflats, tundra, and other wetlands, but they also occur in deserts, high mountains, forests, and agricultural fields. Widespread loss and alteration of these habitats, especially wetlands and grasslands during the past...
California sea otters
James A. Estes, Ronald J. Jameson, James L. Bodkin, David Carlson
Edward T. LaRoe, Gaye S. Farris, Catherine E. Puckett, Peter D. Doran, Michael J. Mac, editor(s)
1995, Book chapter, Our living resources: A report to the nation on the distribution, abundance, and health of U.S. plants, animals, and ecosystems
Information on the size, distribution, and productivity of the California sea otter population is broadly relevant to two federally mandated goals: removing the population’s listing as threatened under the Endangered Species Act (ESA) and obtaining an “optimal sustainable population” under the Marine Mammal Protection Act. Except for the population in...
Census methodologies of Black-legged Kittiwakes in Glacier Bay National Park
Elizabeth Ross Hooge
Daniel R. Engstrom, editor(s)
1995, Conference Paper, Proceedings of the third Glacier Bay science symposium
Black-legged Kittiwakes (Rissa tridactyla) have recently experienced widespread population declines and frequent colony failures throughout the North Pacific. At Glacier Bay National Park, the Margerie Glacier colony was censused visually in 1991 through 1993. In 1993 a new photographic census technique was also tested to assess its feasibility, accuracy, and...
Habitat correlates of Pacific halibut and other groundfish species in Glacier Bay National Park
Gretchen H. Bishop, Philip N. Hooge, S. James Taggart
Daniel R. Engstrom, editor(s)
1995, Conference Paper, Proceedings of the third Glacier Bay science symposium
Originally conceived as a modified Schnabel (1938) design mark-recapture study, the unique random sampling regime of this long line tagging study has allowed us to describe habitat correlates of Pacific halibut (Hippoglossus stenolepis) and other demersal fishes. Pacific halibut and other fish were captured by longline sets of constant length...
Kodiak brown bears
Victor G. Barnes Jr., Roger B. Smith, Mark S. Udevitz, J.R. Bellinger
Edward T. LaRoe, Gaye S. Farris, Catherine E. Puckett, Peter D. Doran, Michael J. Mac, editor(s)
1995, Book chapter, Our living resources: A report to the nation on the distribution, abundance, and health of U.S. plants, animals, and ecosystems
Brown bears (Ursus arctos middendorffi) on the Kodiak Archipelago are famous for their large size and seasonal concentrations at salmon streams. Sport hunting of Kodiak bears has been popular since World War II. Their value as captivating subjects to observe or photograph is a more recent development that is increasing...
Movements of a polar bear from northern Alaska to northern Greenland
George M. Durner, Steven C. Amstrup
1995, Arctic (48) 338-341
Using satellite telemetry, we monitored the movements of an adult female polar bear (Ursus maritimus) as she traveled from the Alaskan Beaufort Sea coast to northern Greenland. She is the first polar bear known to depart the Beaufort Sea region for an extended period, and the first polar bear known...
Survival of juvenile black brant during brood rearing
Paul L. Flint, James S. Sedinger, Kenneth H. Pollock
1995, Journal of Wildlife Management (59) 455-463
Survival of young is an important and poorly understood component of waterfowl productivity. We estimated survival of black brant (Branta bernicla nigricans) goslings during summers 1987-89 on the Yukon-Kuskokwim Delta, Alaska, to determine timing and magnitude of gosling mortality and to compare methods of estimating gosling survival. Eighty-two percent of...
Water over the bridge
John F. Piatt
1995, American Scientist (83) 396-398
The March-April issue of American Scientist contains a commentary by Julia K. Parrish and P. Dee Boersma (Macroscope, "Muddy Waters") that purports to "assess the validity of the claims made concerning seabird mortality as a result of the [Exxon Valdez oil] spill." Parrish and Boersma would have us believe that...
Metabolizability and partitioning of energy and protein in green plants by yearling lesser snow geese
James S. Sedinger, Robert G. White, Jerry W. Hupp
1995, The Condor (97) 116-122
We measured apparent metabolizability of organic matter, gross energy, nitrogen and cell wall constituents of pelleted alfalfa by Lesser Snow Geese (Chen caerulescens caerulescens. We also used simultaneous measurements of energy expenditure and apparent metabolizable energy intake to estimate heat increment of feeding and net energy for production and maintenance....
Brood amalgamation in the Bristle-thighed Curlew Numenius tahitiensis: process and function
Richard B. Lanctot, Robert E. Gill Jr., T. Lee Tibbitts, Colleen M. Handel
1995, Ibis (137) 559-569
Alloparental care in birds generally involves nonbreeding adults that help at nests or breeding adults that help raise young in communal nests. A less often reported form involves the amalgamation of broods, where one or more adults care for young that are not their own. We observed this phenomenon among...
Use of implanted satellite transmitters to locate Spectacled Eiders at-sea
Margaret R. Petersen, David C. Douglas, Daniel M. Mulcahy
1995, The Condor (97) 276-278
Population estimates of Spectacled Eiders (Somateria fischeri) on the Yukon-Kuskokwim Delta (YKD), Alaska, suggest that by 1992 the number of birds on this major nesting area had declined to 1,721 pairs, 4% of that estimated in the 1970s (Stehn st al 1993). Consequently, Spectacled Eiders were listed as threatened under...
Variation in brood behavior of Black Brant
James S. Sedinger, Michael W. Eichholz, Paul L. Flint
1995, The Condor (97) 107-115
We studied behavior of broods of Black Brant (Branta bernicla nigricans) during five summers between 1987 and 1993, a period in which the local breeding population increased >3-fold. Goslings spent more time foraging than adults of either sex, while adult males spent more time alert and less time foraging than...
