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Physical Sciences and Mathematics Commons™
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- Bacteria (2)
- Abies concolor (white fir) (1)
- Acartia tonsa (1)
- Algae (1)
- Ammonia (1)
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- Avoidance behavior (1)
- Biological Sciences Peer-Reviewed Articles (1)
- Blue crab (1)
- Callinectes sapidus (1)
- Chlorophyll (1)
- Ciliate (1)
- Copepod (1)
- Detrended Correspondence Analysis (DECORANA) (1)
- Dissolved enzymes (1)
- Extracellular enzymes (1)
- Fatty acids (1)
- Grazing (1)
- Great Basin National Park (1)
- Lake Mead (Ariz. and Nev.) (1)
- Las Vegas Bay (Nev.) (1)
- Limnology (1)
- Macroalgae (1)
- Metamorphosis (1)
- Nitrous-Oxide Flux; Nitrosomonas-europaea; Atmospheric Chemistry; Methane Emission; Forest; Fire; Deforestation (1)
- Northern Adriatic Sea (1)
- Phosphorus (1)
- Pine needle oil (1)
- Plankton (1)
- Plant secondary metabolites (1)
- Pocket gophers (1)
Articles 1 - 11 of 11
Full-Text Articles in Physical Sciences and Mathematics
The Prairie Naturalist Volume 27, No.4 December 1995
The Prairie Naturalist Volume 27, No.4 December 1995
The Prairie Naturalist
NEW DISTRIBUTIONAL RECORDS FOR MAMMALS IN KANSAS · D. W Sparks and J. R. Choate
CLAY-COLORED SPARROWS IN NORTH DAKOTA PARASITIZED BY BROWN-HEADED COWBIRDS ▪ G. P. Romig and R. D. Crawford
A NOTEWORTHY RECORD AND THE BREEDING DISTRIBUTION OF THE BLUE GROSBEAK IN NORTH DAKOTA ▪ L. D. Igl
NEAR LONGEVITY RECORD FOR THE SNOW GOOSE ▪ M T. Koenen and D. M. Leslie, Jr.
COMPARISON OF WATER CONSUMPTION BETWEEN TWO GRASSLAND EMBERIZIDS ▪ J. L. Zimmerman
FACTORS ASSOCIATED WITH DECLINING PROPORTION OF CITIZENS HUNTING IN SOUTH DAKOTA ▪ N. J. Dietz, K. F. Higgins, and R. D. Mendelsohn …
The Magnitude And Persistence Of Soil No, N2o, Ch4, And Co, Fluxes From Burned Tropical Savanna In Brazil, M Poth, Iris C. Anderson, Et Al
The Magnitude And Persistence Of Soil No, N2o, Ch4, And Co, Fluxes From Burned Tropical Savanna In Brazil, M Poth, Iris C. Anderson, Et Al
VIMS Articles
Among all global ecosystems, tropical savannas are the most severely and extensively affected by anthropogenic burning. Frequency of fire in cerrado,a type of tropical savanna covering 25% of Brazil, is 2 to 4 years. In 1992 we measured soil fluxes of NO, N2O, CH4, and CO2 from cerrado sites that had been burned within the previous 2 days, 30 days, 1 year, and from a control site last burned in 1976. NO and N2O fluxes responded dramatically to fire with the highest fluxes observed from newly burned soils after addition of water. Emissions of N-trace gases after burning were of …
Nutrient Limitation In A Southwestern Desert Reservoir: Eutrophication Of Las Vegas Bay, Lake Mead, Nevada, Davine M. Lieberman
Nutrient Limitation In A Southwestern Desert Reservoir: Eutrophication Of Las Vegas Bay, Lake Mead, Nevada, Davine M. Lieberman
Publications (WR)
Algal bioassay tests were conducted with Selenastrum capricornutum and natural algae on inner Las Vegas Bay, Lake Mead, Nevada, from December 1992 through September 1993, to identify any nutrient limitation in an area of the reservoir that has experienced problems associated with severe nutrient enrichment. Three areas were sampled based on a gradient of water quality conditions that existed in Las Vegas Bay (LVB). Disodium ethylenedinitrilotetraacetate (EDTA) significantly stimulated algal growth compared to non-EDTA treatment. Algal bioassays indicated that phosphorus (P) was the primary limiting nutrient at all stations for most of the test dates. Chl a response with EDTA …
The Prairie Naturalist Volume 27, No.3. September 1995
The Prairie Naturalist Volume 27, No.3. September 1995
The Prairie Naturalist
SONGBIRD RESPONSES TO SAGEBRUSH REMOVAL IN A HIGH ELEVATION SAGEBRUSH STEPPE ECOSYSTEM ▪ L L Kerley and S. H Anderson
THE AVIFAUNA OF REMNANT TALLGRASS PRAIRIE NEAR BOULDER, COLORADO ▪ C E Bock, J. H Bock, and B. C Bennett
SHORT -TERM RESPONSES OF SMALL MAMMALS TO AUTUMN FIRE IN TALLGRASS PRAIRIE ▪ B.R. McMillan, D. E Brillhart, G A. Kaufman, and D. W. Kaufman
DIVERGENT SELECTION FOR SEED MASS IN FOXTAIL DALEA ▪ R. Bortnem and A. Boe
NOTES
American Woodcock Use of a Nest Box ▪ D.L. Bergman and J. M. Bergman
BOOK REVIEWS
Iowa's Vascular Plants ▪ …
Behavioral Responses To Pine Needle Oil In The Northern Pocket Gopher, Gisela Epple, Dale L. Nolte, J. Russell Mason, Eugeny Aronov, Shirley Wager-Page
Behavioral Responses To Pine Needle Oil In The Northern Pocket Gopher, Gisela Epple, Dale L. Nolte, J. Russell Mason, Eugeny Aronov, Shirley Wager-Page
National Wildlife Research Center Repellents Conference 1995
For many herbivorous mammals, oils from conifers are feeding repellents. Our study investigated effects of pine needle oil on feeding and other behaviors of northern pocket gophers. In one-choice feeding trials pocket gophers were offered sweet potato from single feeding stations placed into each subject's home cage. Stations contained either a scent dispenser with pine needle oil or with mineral oil. Pine needle oil did not inhibit food retrieval under these conditions. Responses to pine needle oil and to a control odorant, d-pulegone, were also tested in mazes where subjects were offered choices between two goal boxes, each containing food …
Trophic Transfer Of Fatty Acids, Sterols, And A Triterpenoid Alcohol Between Bacteria, A Ciliate, And The Copepod Acartia Tonsa, Melissa C. Ederington, George B. Mcmanus, H. Rodger Harvey
Trophic Transfer Of Fatty Acids, Sterols, And A Triterpenoid Alcohol Between Bacteria, A Ciliate, And The Copepod Acartia Tonsa, Melissa C. Ederington, George B. Mcmanus, H. Rodger Harvey
OES Faculty Publications
The incorporation of lipids into the copepod Acartia tonsa and its eggs was measured when it was fed either a bacterivorous ciliate (Pleuronema sp.) or a diatom (Thalassiosira weissflogii). Egg production was 10-fold higher on the diatom diet, whereas hatch success of eggs was the same for algal and ciliate diets. Adult copepods fed diatoms contained more total fatty acid and sterols than copepods fed the ciliate diet, and individual lipids reflected the dietary source. Eggs from diatom-fed copepods had fewer fatty acids but more sterols than eggs from copepods on a ciliate diet. Ciliate-fed copepods and …
The Prairie Naturalist Volume 27, No.2. June 1995
The Prairie Naturalist Volume 27, No.2. June 1995
The Prairie Naturalist
WILDLIFE MORTALITY ASSOCIATED WITH OIL PITS IN WYOMING ▪ B.J. Esmoil and S.H. Anderson
DRAMATIC INCREASE OF LE CONTE'S SPARROW IN CONSERVATION RESERVE PROGRAM FIELDS IN THE NORTHERN GREAT PLAINS ▪ LD. Igl and D.H. Johnson
CHRISTMAS BIRD COUNTS FOR NORTH DAKOTA - 1994 ▪ R.N. Randall
DESCRIPTIONS OF WALLEYE STOCKS IN HIGH-ELEVATION RESERVOIRS, WYOMING ▪ T.D. Marwitz and W A. Hubert
NEW VASCULAR PLANT RECORDS FOR THE BLACK HILLS OF SOUTH DAKOTA AND WYOMING • G.E. Larson and J.R. Johnson
NOTES
A New Population of Small White Lady's-Slipper (Cypripedium candidum) in South Dakota ▪ S.E. Boettcher
Sandhill …
The Prairie Naturalist Volume 27 , No. 1. March 1995
The Prairie Naturalist Volume 27 , No. 1. March 1995
The Prairie Naturalist
DISTRIBUTION AND STATUS OF SAGE GROUSE IN COLORADO ▪ CE. Braun
BIRDS ASSOCIATED WITH BLACKBIRD SPRING FEEDING SITES IN SOUTH DAKOTA ▪ G.M. Linz, D.L. Bergman and W J. Bleier
INFLUENCE OF FORB ABUNDANCE ON WINTER BIRD USE OF CONSERVATION RESERVE PROGRAM FIELDS ▪ S.D. Hull, R.J. Robel and K.E. Kemp
FIRST NEST DOCUMENTATION FOR WHIP-POOR-WILL IN SOUTH DAKOTA ▪ K. L. Dean, D.L. Swanson, E.T. Liknes and D.P. Weinacht
WOOD DUCK POPULATION EXPANSION IN NORTHERN MONTANA ▪ DM. Prellwitz, J.R. Little, L.R. Rau and C.J. Hoff
PRAIRIE VOLES AT LOW DENSITY IN UNGRAZED TALLGRASS PRAIRIE IN THE FLINT HILLS …
Structure Of Woody Riparian Vegetation In Great Basin National Park, S. D. Smith, K. J. Murray, F. H. Landau, A. M. Sala
Structure Of Woody Riparian Vegetation In Great Basin National Park, S. D. Smith, K. J. Murray, F. H. Landau, A. M. Sala
Life Sciences Faculty Research
The community composition and population structure of the woody riparian vegetation in Great Basin National Park are described. Community analyses were accomplished by sampling 229 plots along an elevational gradient of 8 major stream systems in the Park. TWINSPAN analysis identified 4 primary species groups that were characterized by Populus tremuloides (aspen), Abies concolor (white fir), Rosa woodsii (Woods rose), and Populus angustifolia (narrowleaf cottonwood) as dominants, respectively. Detrended Correspondence Analysis (DECORANA) showed that the most important environmental factors associated with the distribution of species were elevation and slope, with flood-related physiographic factors having a secondary effect. Analysis of size-class …
Influence Of Zooplankton Grazing On Free Dissolved Enzymes In The Sea, Alexander B. Bochdansky, Staša Puškarić, Gerhard J. Herndl
Influence Of Zooplankton Grazing On Free Dissolved Enzymes In The Sea, Alexander B. Bochdansky, Staša Puškarić, Gerhard J. Herndl
OES Faculty Publications
In the Northern Adriatic Sea, extracellular enzymatic activity was measured during a Lagrangian study following a drifting buoy for 40 h. Dissolved free enzymatic activity represented 20 to 70% of total activity depending on the type of enzyme. alpha- and beta-glucosidases exhibited a significantly higher free activity than proteolytic enzymes. In subsequent laboratory experiments we investigated the effect of zooplankton on the free enzyme pool. The 4-step approach included: (1) determination of the enzymatic activities in copepods (mainly Acartia clausi); (2) enzymatic activity in fecal pellets; (3) short- and long-term grazing experiments; and (4) degradability of free glucosidase in seawater. …
Time To Metamorphosis Of Blue Crab Callinectes Sapidus Megalopae: Effects Of Benthic Macroalgae, Robert D. Brumbaugh, John R. Mcconaugha
Time To Metamorphosis Of Blue Crab Callinectes Sapidus Megalopae: Effects Of Benthic Macroalgae, Robert D. Brumbaugh, John R. Mcconaugha
OES Faculty Publications
There is growing evidence that postlarvae (megalopae) of the blue crab Callinectes sapidus can slow the progression through the molt cycle while in offshore nursery grounds, and delay metamorphosis until reinvasion of coastal habitat occurs. However, the cues that trigger metamorphosis of megalopae are not well known. This study tested the hypothesis that the time to metamorphosis (TTM) from the postlarval megalops stage to the first crab stage is shortened in the presence of 2 potential macroalgal settlement substrates, Ulva lactuca (Chlorophyta), and Gracilaria spp. (Rhodophyta). Megalopae and test water were collected from 3 locations (offshore, at a coastal inlet, …