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Page 4130, results 103226 - 103250

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Recovery rates of cryptobiotic crusts: inoculant use and assessment methods
Jayne Belnap
1993, Great Basin Naturalist (53) 89-95
Recovery rates of cyanobacterial-lichen soil crusts from disturbance were examined. Plots were either undisturbed or scalped, and scalped plots were either inoculated with surrounding biological crust material or left to recover naturally. Natural recovery rates were found to be very slow. Inoculation significantly hastened recovery for the cyanobacterial/green algal component,...
Forecasting contributions of lake whitefish year-classes to a Lake Superior commercial fishery from estimates of yearling abundance
Gary L. Curtis, Charles R. Bronte, James H. Selgeby
1993, North American Journal of Fisheries Management (13) 349-352
We developed a simple linear regression model to forecast year-class contributions of lake whitefish Coregonus clupeaformis to the commercial harvest in the Apostle Islands region of Lake Superior. We indexed year-class strength from catches of yearling fish in bottom trawl samples. Recruitment of each year-class was measured by its relative abundance in...
Natural radionuclides
D. Kirk Nordstrom, Richard B. Wanty
W.M. Alley, editor(s)
1993, Book chapter, Regional ground-water quality
No abstract available....
Surgical sterilization: an underutilized procedure for evaluating the merits of induced sterility
James J. Kennelly, Kathryn A. Converse
1993, Paper 13
Despite more than 4 decades of effort, development of effective wildlife damage control programs based on sterilization of target species has met with limited success. This is partly due to the fact that investigators have assumed, rather than empirically tested, whether the reproductive strategies of the target populations were vulnerable...
Book reviews
Thomas J. Stohlgren
1993, Journal of Vegetation Science (4) 137-140
No abstract available....
Using Pop-II models to predict effects of wolf predation and hunter harvests on elk, mule deer, and moose on the northern range
John A. Mack, Francis J. Singer
1993, Report, Ecological issues on reintroducing wolves into Yellowstone National Park
The effects of establishing a gray wolf (Canis lupus) population in Yellowstone National Park were predicted for three ungulate species—elk (Cervus elaphus), mule deer (Odocoileus hemionus), and moose (Alces alces)—using previously developed POP-II population models. We developed models for 78 and 100 wolves. For each wolf population, we ran...
Velocity measurements and changes in position of Thwaites Glacier/iceberg tongue from aerial photography, Landsat images and NOAA AVHRR data
Jane G. Ferrigno, Baerbel K. Lucchitta, A. L. Mullinsallison, Robert J. Allen, W. G. Gould
1993, Annals of Glaciology (17) 239-244
The Thwaites Glacier/iceberg tongue complex has been a significant feature of the Antarctic coastline for at least 50 years. In 1986, major changes began to occur in this area. Fast ice melted and several icebergs calved from the base of the iceberg tongue and the terminus of Thwaites Glacier. The...
Bald eagle winter roost characteristics in Lava Beds National Monument, California
Thomas J. Stohlgren
1993, Northwest Science (67) 44-54
This study provided a survey of bald eagle (Haliaeetus leucocephalus) winter roost habitat (in 4 km2 of potential roost areas) in southern Lava Beds National Monument, California. A systematic-clustered sampling design (n=381 plots) was used to compare forest stand characteristics in two primary roost areas (Caldwell Butte and Eagle...
The effects of ingested plastic on growth and survival of albatross chicks
Paul R. Sievert, Louis Sileo
1993, Conference Paper, The status, ecology, and conservation of marine birds of the North Pacific
We studied the effects of ingested plastic on the growth and survival of chicks of Laysan Albatrosses Diomedea immutabilis and Black-footed albatrosses D. nigripes on Midway Atoll during the nesting seasons of 1986 and 1987. Weights and proventricular contents of the chicks were determined periodically through the nesting cycle....
Evaluating temperature regimes for protection of Smallmouth Bass
Carl L. Armour
1993, Report, Resource Publication 191
The success of smallmouth bass (Micropterus dolomieu) is affected by temperature regimes. Concepts are presented for evaluating the suitability of alternative temperature regimes through experimentally derived data, including ultimate incipient lethal temperatures and maximum weekly average, short-term maximum, and final preferendum temperatures. Also, concepts are described for basing evaluations on...
A prepositioned areal electrofishing apparatus for sampling stream habitats
William L. Fisher, Marshall E. Brown
1993, North American Journal of Fisheries Management (13) 807-816
We describe the design, use, and sampling characteristics ofan electrofishing apparatus used to sample fish in stream habitats. The apparatus uses two prepositioned areal electrofishing devices (PAED) of different designs, a bottom parallel electrode PAED and a suspended dropper electrode PAED. To determine the effective immobilization ranges of the PAEDs,...