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1998

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Articles 1 - 30 of 1948

Full-Text Articles in Life Sciences

Hexapod Herald - Vol. 10, No. 9, December 31, 1998 Dec 1998

Hexapod Herald - Vol. 10, No. 9, December 31, 1998

Hexapod Herald and Other Entomology Department Newsletters

Grants

Presentations

Congratulations

Graduate student news

Publications

Travel

From Cheri's desk

Classes offered spring 1999

Calendar of events

National ESA award winners


Proposal For Improvement Of Marine Fisheries Management In Cambodia, Savath Som Dec 1998

Proposal For Improvement Of Marine Fisheries Management In Cambodia, Savath Som

World Maritime University Dissertations

No abstract provided.


Absorption Efficiencies And Biochemical Fractionation Of Assimilated Compounds In The Cold Water Appendicularian Oikopleura Vanhoeffeni, Alexander B. Bochdansky, Don Deibel, Richard B. Rivkin Dec 1998

Absorption Efficiencies And Biochemical Fractionation Of Assimilated Compounds In The Cold Water Appendicularian Oikopleura Vanhoeffeni, Alexander B. Bochdansky, Don Deibel, Richard B. Rivkin

OES Faculty Publications

Using Ge-68:C-14 dual-labeling, we investigated the absorption efficiency of diatom carbon for the cold water appendicularian Oikopleura vanhoeffeni. The absorption efficiency of bulk carbon (mean = 67%) was not influenced by body size or ingestion rate. For the first time for a pelagic tunicate, food and feces were fractionated into their major biochemical constituents (i.e., low-molecular-weight compounds, lipid, protein, and polysaccharide), allowing calculation of absorption efficiencies for each fraction. Low-molecular-weight compounds and proteins were preferentially absorbed over lipids and polysaccharides. However, predicted C:N ratios of the fecal pellets of O. vanhoeffeni were in the lower range of C:N ratios …


Cultivating The Edible Oyster Mushroom Pleurotus On Sawdust, Fss Magingo Dec 1998

Cultivating The Edible Oyster Mushroom Pleurotus On Sawdust, Fss Magingo

Tanzania Journal of Science

The edible mushroom Pleurotus pulmonarius was grown on pasteurized saw dust supplemented with either Crotalaria ochroleuca (N2- fixing legume) or with chicken manure. Inoculated, unsupplemented sawdust acted as control. Sawdust supplemented with C. ochroleuca biomass yielded the highest fresh weight of the mushroom with a biological efficiency (B.E) of 83%. Sawdust supplemented with chicken manure had a 67% B.E., while control gave the least harvest (B.E. = 32%). Reasons for the differences are discussed.


Drosophila Fascin Mutants Are Rescued By Overexpression Of The Villin-Like Protein, Quail, Kelly Cant, Brenda A. Knowles, Shalina Mahajan-Miklos, Matthew Heintzelman, Lynn Cooley Dec 1998

Drosophila Fascin Mutants Are Rescued By Overexpression Of The Villin-Like Protein, Quail, Kelly Cant, Brenda A. Knowles, Shalina Mahajan-Miklos, Matthew Heintzelman, Lynn Cooley

Dartmouth Scholarship

Actin bundle assembly in specialized structures such as microvilli on intestinal epithelia and Drosophila bristles requires two actin bundling proteins. In these systems, the distinct biochemical properties and temporal localization of actin bundling proteins suggest that these proteins are not redundant. During Drosophila oogenesis, the formation of cytoplasmic actin bundles in nurse cells requires two actin bundling proteins, fascin encoded by the singed gene and a villin-like protein encoded by the quail gene. singed and quail mutations are fully recessive and each mutation disrupts nurse cell cytoplasmic actin bundle formation. We used P-element mediated germline transformation to overexpress quail in …


Northeast Research Station Watertown, South Dakota Annual Progress Report, 1998, Agricultural Experiment Station, Plant Science Department Dec 1998

Northeast Research Station Watertown, South Dakota Annual Progress Report, 1998, Agricultural Experiment Station, Plant Science Department

Agricultural Experiment Station and Research Farm Annual Reports

This is the 1998 annual progress report for the Northeast Research Station in Watertown, South Dakota. This report is issued by the South Dakota Agricultural Experiment Station and the South Dakota State University Plant Science Department. This report includes information on the 1998 crop season, including: precipitation summary, small grain , corn, and soybean performance trials, flax and canola variety trials, spring and winter wheat breeding , soybean row space/population studies, performance of corn hybrids, corn yields, rotation studies and fungicide test.


Rhodospirillum Rubrum Poly-Β-Hydroxyalkanoate Synthase, Thomas E. Clemente, Ganish M. Kishore, Timothy A. Mitsky, David M. Stark Dec 1998

Rhodospirillum Rubrum Poly-Β-Hydroxyalkanoate Synthase, Thomas E. Clemente, Ganish M. Kishore, Timothy A. Mitsky, David M. Stark

Center for Plant Science Innovation: Faculty Publications

Isolated DNA fragments encoding a Rhodospirillum rubrum (ATCC 25903) polyhydroxyalkanoate (PHA) synthase, or biologically functional equivalents thereof, are provided. Also provided is the deduced amino acid sequence of the R. rubrum PHA synthase. These molecules are useful in the production of PHAs in bacteria and plants.


Endangered And Threatened Wildlife And Plants: Final Rule To List The Topeka Shiner As Endangered Dec 1998

Endangered And Threatened Wildlife And Plants: Final Rule To List The Topeka Shiner As Endangered

Endangered Species Bulletin

The U.S. Fish and Wildlife Service determines the Topeka shiner (Notropis topeka) to be an endangered species under the authority of the Endangered Species Act of 1973, as amended (16 U.S.C. 1531 et seq.). The Topeka shiner is a small fish presently known from small tributary streams in the Kansas and Cottonwood river basins in Kansas; the Missouri, Grand, Lamine, Chariton, and Des Moines river basins in Missouri; the North Raccoon and Rock river basins in Iowa; the James, Big Sioux and Vermillion river watersheds in South Dakota; and, the Rock and Big Sioux river watersheds in Minnesota. …


Promotor (Flt) For The Full-Length Transcript Of Peanut Chlorotic Streak Caulimovirus (Pclsv) And Expression Of Chimeric Genes In Plants, Indu B. Maiti, Robert J. Shepherd Dec 1998

Promotor (Flt) For The Full-Length Transcript Of Peanut Chlorotic Streak Caulimovirus (Pclsv) And Expression Of Chimeric Genes In Plants, Indu B. Maiti, Robert J. Shepherd

Kentucky Tobacco Research and Development Center Faculty Patents

The isolation, modification and use of wild-type and modified viral FLt promoters of peanut chlorotic streak caulimovirus (PClSV) in the expression of chimeric genes in plant cells. The FLt promoter from PClSV has been modified to have duplicated enhancer domains.


Central Crops And Soils Research Station Highmore, South Dakota: Annual Progress Report, 1998, Agricultural Experiment Station Dec 1998

Central Crops And Soils Research Station Highmore, South Dakota: Annual Progress Report, 1998, Agricultural Experiment Station

Agricultural Experiment Station and Research Farm Annual Reports

This report of the Central Crops and Soils Research Station at Highmore, South Dakota is a progress report and, therefore, the results presented are not necessarily complete nor conclusive. Any interpretation given is tentative because additional data from continuation of these experiments may produce conclusions different from those of any one year. The data presented in this report reflect the 1998 growing season.


Recent Northern Records Of The Nine-Banded Armadillo (Dasypodidae) In Nebraska, Patricia W. Freeman, Hugh H. Genoways Dec 1998

Recent Northern Records Of The Nine-Banded Armadillo (Dasypodidae) In Nebraska, Patricia W. Freeman, Hugh H. Genoways

University of Nebraska State Museum: Mammalogy Papers

Examination of the distribution of nine-banded armadillo in Nebraska reveals that these animals may be entering the state from two directions. The animals in Chase, Dundy, and Furnas counties appear to be closely associated with the Republican River and its tributaries and probably reached the state along these riparian habitats from northwestern Kansas and northeastern Colorado. Records in the central and eastern part of Nebraska are not closely tied to one river system. For the specimen from Ord to have followed watercourses, it would have needed to follow the Big or Little Blue rivers, crossed to the Platte River, and …


Effects Of Chronic And Acute Y-Hydroxybutyrate Administration On Mass And The Release Of Growth Hormone And Corticosterone, Eric C. Goshorn Dec 1998

Effects Of Chronic And Acute Y-Hydroxybutyrate Administration On Mass And The Release Of Growth Hormone And Corticosterone, Eric C. Goshorn

Morehead State Theses and Dissertations

A thesis presented to the faculty of the College of Science and Technology at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science in Biology by Eric C. Goshorn on December 10, 1998.


Meeting Minutes, December 8th, 1998, National Smokejumper Association Executive Committee Dec 1998

Meeting Minutes, December 8th, 1998, National Smokejumper Association Executive Committee

National Smokejumper Association Meeting Minutes

Agenda: Minutes: minutes of the meeting held l7 Nov 98.; Treasurer's Report: NSA is within budget for the year.; Membership Report: corrections of duplication of names and removal of the names of associate members that are no longer active.; Removed the names of many pilots who were not also smokejumpers.; Old Business: the "Hall of Fame" proposal was brought up.; Hall of Fame proposal be dropped.; Work on a brochure.; Adopt A Trail project.; Complaints covered in the letter.; New Business: Wildland Firefighter Monument.; Report on base activities for the news letter.;


Geographic Variation In Alarm Calls Of Gunnison's Prairie Dogs, C. N. Slobodchikoff, S. H. Ackers, M. Van Ert Dec 1998

Geographic Variation In Alarm Calls Of Gunnison's Prairie Dogs, C. N. Slobodchikoff, S. H. Ackers, M. Van Ert

Communication Skills Collection

Geographic variation in alarm calls of Gunnison's prairie dogs (Cynomys gunnisoni) was analyzed at regional and local scales. Alarm calls in response to a common stimulus (the same human) were recorded at four colonies near Flagstaff, Arizona, and at six sites throughout the southwestern United States. The acoustic structure of calls was analyzed for seven call variables. Regional differences fit the prediction of greater differences with increased geographical separation. Differences between colonies at a local scale were not related to geographical distance, suggesting that local dialects exist within a region. Differences in the level of predation by humans …


Inorganic Fertilization Of Walleye (Stizostedion Vitreum) Hatchery Ponds, Roderick J. Middleton Dec 1998

Inorganic Fertilization Of Walleye (Stizostedion Vitreum) Hatchery Ponds, Roderick J. Middleton

Morehead State Theses and Dissertations

A thesis presented to the faculty of the College of Science and Technology at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science by Roderick J. Middleton on December 2, 1998.


Legume Logic Number 100 Dec 1998

Legume Logic Number 100

Legume Logic

Contents

Press the seed, not the soil

Third European legume conference - Spain

Pulse points

Wodjil lupins

Seed quality tests

Seasons greetings & 100 issues for Legume Logic


A Quantitative Analysis Of The Demand For Pork In The United States (1966-1996), Raven Nicole Matthews-Pillette Dec 1998

A Quantitative Analysis Of The Demand For Pork In The United States (1966-1996), Raven Nicole Matthews-Pillette

Electronic Dissertations and Theses

The following study examines the trend in the demand for pork over the years from 1966 to 1996. The effect of pork price is used to quantitatively determine own-price influence in pork demand. The price of beef and chicken are used to measure the effects of these known substitutes on the demand for pork. Bread price is used as a complementary influence on pork demand. Finally, income and tastes and preferences are used to quantitatively measure their respective influence on the consumption of pork meat. Results showed that out of the prices of pork, 6eef, chicken, and bread; income; and …


Bulletin No. 36: Amphibians And Reptiles Of The Connecticut College Arboretum, Jill Devito, Joseph Markow Dec 1998

Bulletin No. 36: Amphibians And Reptiles Of The Connecticut College Arboretum, Jill Devito, Joseph Markow

Bulletins

No abstract provided.


New Caribbean Locality For The Extinct Great White Shark Carcharodon, Clare Flemming, Donald A. Mcfarlane Dec 1998

New Caribbean Locality For The Extinct Great White Shark Carcharodon, Clare Flemming, Donald A. Mcfarlane

WM Keck Science Faculty Papers

Carcharodon is represented by a single upper tooth (Fig. 1) which we extracted from the eroding Pliocene limestone wall, some six meters above the floor at the northern end of Darby Sink. Much of the tooth is missing, but the remaining portion includes features diagnostic of this genus. The tooth conforms in size and morphology to Carcharodon megalodon (Agassiz, 1843), an extinct great white shark.


Central Bank Of Nigeria Statistical Bulletin, December 1998, Central Bank Of Nigeria Dec 1998

Central Bank Of Nigeria Statistical Bulletin, December 1998, Central Bank Of Nigeria

CBN Statistical Bulletin

The explanatory notes outline the methods for compiling financial, public finance, national accounts, and international trade statistics in Nigeria. Financial statistics are compiled from balance sheets and financial statements, covering lending and deposit interest rates, bank liquidity, and clearing house statistics. Public finance statistics include government revenue, expenditure, and debt, as well as debt conversion programs and promissory notes. National accounts are based on the System of National Accounts and include data on GDP, Gross Fixed Capital Formation, consumption expenditure, and Gross National Savings. International trade statistics measure the value and quantity of imports and exports, presented in the Standard …


Regeneration Of Hair Cell Epithelia In The Chick And Salamander, Kenneth Detwiler Dec 1998

Regeneration Of Hair Cell Epithelia In The Chick And Salamander, Kenneth Detwiler

Masters Theses & Specialist Projects

The acousticolateralis sensory system is characterized by a specific receptor cell type called the sensory hair cell and is found in all vertebrates. There are two types of hair cell sensory epithelia based on location: those of the inner ear, such as the organs for hearing and balance, and the lateral line system located within the epidermis. In mammals, including humans, loss or damage of the hair cells of the auditorysystem results in permanent hearing loss. However, this is not the case with birds and amphibians. Amphibians, with a lateral line system, are capable of replacing lost or damaged hair …


Observations On Groundwater Recharge In The Westdale Catchment, M F. Lewis, C E. Mcconnell Dec 1998

Observations On Groundwater Recharge In The Westdale Catchment, M F. Lewis, C E. Mcconnell

Resource management technical reports

A study of the role of groundwater carriers and barriers in controlling salinity was carried out in the Westdale Catchment by Lewis and McConnell (in preparation). Although that study was primarily concerned with groundwater flow and discharge processes, the data collected also provided rudimentary information on the timing of groundwater recharge events and their distribution across the landscape.


Verbena L., Gordon C. Tucker, Bot 4801 Students Dec 1998

Verbena L., Gordon C. Tucker, Bot 4801 Students

Specimens by Name

No abstract provided.


Exploitations Of Sexual Signals By Predators And Parasitoids, Marlene Zuk, Gita R. Kolluru Dec 1998

Exploitations Of Sexual Signals By Predators And Parasitoids, Marlene Zuk, Gita R. Kolluru

Biological Sciences

Signals used to attract mates are often conspicuous to predators and parasites, and their evolution via sexual selection is expected to be opposed by viability selection. Many secondary sexual traits may represent a compromise between attractiveness and avoidance of detection. Although such signal exploitation appears to be widespread, most examples come from species that use acoustic or olfactory mating signals, and relatively few cases of visual signal exploitation can be substantiated. Because males are usually the signaling sex, they are more at risk from predators or parasitoids that locate prey or hosts by sexual signals; this differential selection on the …


Sex Can Be Dangerous: Acoustically-Orienting Parasitoids On Field Crickets (Orthoptera: Gryllidae), Gita R. Kolluru Dec 1998

Sex Can Be Dangerous: Acoustically-Orienting Parasitoids On Field Crickets (Orthoptera: Gryllidae), Gita R. Kolluru

Biological Sciences

The Orthopterists' Society generously awarded me grants in 1995 and 1997 to conduct research on Teleogryllus oceanicus (Orthoptera: Gryllidae) on the Big Island of Hawaii. Here I report results to date from fieldwork conducted in the past few years.


A Second Pre-Wisconsinan Locality For The Extinct Jamaican Rodent, Clidomys (Rodentia: Heptaxodontidae), Donald A. Mcfarlane, Joyce Lundberg, Clare Flemming, Ross D. E. Macphee, Stein-Erik Lauritzen Dec 1998

A Second Pre-Wisconsinan Locality For The Extinct Jamaican Rodent, Clidomys (Rodentia: Heptaxodontidae), Donald A. Mcfarlane, Joyce Lundberg, Clare Flemming, Ross D. E. Macphee, Stein-Erik Lauritzen

WM Keck Science Faculty Papers

Clidomys is the most distinctive but least well known member of the late Quaternary terrestrial mammal fauna of Jamaica. Here we report the second dated locality for this genus. The Illinoisan age we report further strengthens arguments we have made elsewhere, that Clidomys represents an early - probably pre-Wisconsinan - extinction that contrasts with the growing record of Holocene extinctions in the Antilles.


Future Directions For The Rock Lobster Industry Advisory Committee And The Western Rock Lobster Managed Fishery, Kevin Donohue Dec 1998

Future Directions For The Rock Lobster Industry Advisory Committee And The Western Rock Lobster Managed Fishery, Kevin Donohue

Fisheries Management Papers

This paper is divided into two parts. The purpose of Part One is to get Industry's views on the six key questions concerning the Rock Lobster Industry Advisory Committee's role, operation and advice. The purpose of Part Two is to present those management issues identified at the joint RLIAC/Western Rock Lobster Development Association workshop held on the 16 September 1998.


Future Directions For Tourism At The Houtman Abrolhos Islands - Draft For Public Comment, Le Provost Dames & Moore Dec 1998

Future Directions For Tourism At The Houtman Abrolhos Islands - Draft For Public Comment, Le Provost Dames & Moore

Fisheries Management Papers

This paper discusses the constraints on tourism in the Abrolhos and key management strategies of the draft tourism plan. Discusses facilities required and recommending a broadening of air services to allow their use for tourism, establishment of boat moorings for commercial tourist operators, public moorings may be installed and rented for use by private boats, upgrading of facilites Dransfield House on Beacon Island, could be used as an interpretive centre.


Management Plan For Sustainable Tourism At The Houtman Abrolhos Islands, Le Provost Dames & Moore Dec 1998

Management Plan For Sustainable Tourism At The Houtman Abrolhos Islands, Le Provost Dames & Moore

Fisheries Management Papers

The combination of unique species of fish, coral reefs and other invertebrates, historical shipwrecks and the commercially valuable Western rock lobster makes the Abrolhos a unique area of Western Australia. In recognition of this the Minister of Fisheries is releasing the plan 'Management of Houtman Abrolhos System', following a period of public consultation. The islands are becoming increasingly popular destination for tourists that are attracted to the diving, fishing, bird watching, maritime history and other features of the Abrolhos. The draft Management Plan for Sustainable Tourism in the Houtman Abolhos Islands has been developed to provide a framework within which …


Management Of The Houtman Abrolhos System., Kim Nardi, Abrolhos Islands Management Advisory Committee Dec 1998

Management Of The Houtman Abrolhos System., Kim Nardi, Abrolhos Islands Management Advisory Committee

Fisheries Management Papers

The Abrolhos System is the Houtman Abrolhos Islands and adjoing State Territorial Waters. It is an important part of the Western Australian environment. Has major significance in conservation of flora and fauna and also in geological terms. The waters adjoining State Territorial Waters contain some of the most highly valued marine systems in the State. These include sites of historical shipwrecks in Australia. The are of great interest to visitors and support a relatively small but growing recreation and tourism industy.

The area is integral to the Western rock lobster fishery, which is that State's premier primary industries. The Abrolhos …