Open Access. Powered by Scholars. Published by Universities.®

Other Life Sciences Commons™

Open Access. Powered by Scholars. Published by Universities.®

Discipline
Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 631 - 660 of 711

Full-Text Articles in Other Life Sciences

Vertebrate Pests Of Agriculture, Forestry And Public Lands Western Coordinating Committee - 95 Jan 1999

Vertebrate Pests Of Agriculture, Forestry And Public Lands Western Coordinating Committee - 95

Western Region Coordinating Committee for Vertebrate Pests of Agriculture, Forestry, and Public Lands (WCC-95)

To identify and evaluate research and educational needs including damage assessment, integrated management strategies and materials, new target-specific wildlife management practices, studies of relationships between wildlife pests and endangered species, development of new non-lethal approaches to wildlife damage management, and trends in social attitudes affecting the use of technologies. To coordinate cost-sharing efforts between governments, universities, and private companies for gathering data to register products for repelling, mitigating, or controlling wildlife damage. To disseminate information and educational materials to researchers, teachers, stakeholders, and other interested parties.


Chlorella Virus Pbcv-1 Encodes A Functional Homospermidine Synthase, Annette Kaiser, Michael Vollmert, Dorothea Tholl, Michael V. Graves, James Gurnon, Weimei Xing, Amber D. Lisec, Kenneth Nickerson, James L. Van Etten Jan 1999

Chlorella Virus Pbcv-1 Encodes A Functional Homospermidine Synthase, Annette Kaiser, Michael Vollmert, Dorothea Tholl, Michael V. Graves, James Gurnon, Weimei Xing, Amber D. Lisec, Kenneth Nickerson, James L. Van Etten

Kenneth Nickerson Papers

Sequence analysis of the 330-kb genome of chlorella virus Paramecium bursaria chlorella virus 1 (PBCV-1) revealed an open reading frame, A237R, that encodes a protein with 34% amino acid identity to homospermidine synthase from Rhodopseudomonas viridis. Expression of the a237r gene product in Escherichia coli established that the recombinant enzyme catalyzes the NAD+-dependent formation of homospermidine from two molecules of putrescine. The a237r gene is expressed late in PBCV-1 infection. Both uninfected and PBCV-1-infected chlorella, as well as PBCV-1 virions, contain homospermidine, along with the more common polyamines putrescine, spermidine, and cadaverine. The total number of polyamine …


Attitudes And Roles Of Women And Minorities In Community And Urban Forestry Professions, Hope A. Bragg May 1998

Attitudes And Roles Of Women And Minorities In Community And Urban Forestry Professions, Hope A. Bragg

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Community and urban forestry is a multifaceted field ranging from tree planting to removal, hazard assessment, and public relations. However, the racial and gender diversity of the community forestry workforce is remarkably low. To gain a better understanding of this lack of diversity, I surveyed professionals in two major community/urban forestry organizations. Age, income, and years in the profession were considered, along with education level, to determine if there is some underlying reason for low representation of women and minorities in the community/urban forestry field. I found that while white males dominated all work sectors (especially private organizations), women were …


Vertebrate Pests Of Agriculture, Forestry And Public Lands: 1998 Annual Meeing Jan 1998

Vertebrate Pests Of Agriculture, Forestry And Public Lands: 1998 Annual Meeing

Western Region Coordinating Committee for Vertebrate Pests of Agriculture, Forestry, and Public Lands (WCC-95)

Capsaicin, northern pocket gophers and behavior, Leonard Askham

Efficacy of the aerial application of methyl anthranilate in reducing blackbird damage to sweet corn and sunflowers, Robert Timm and John Hays

Livestock protection collar use at the U.C. Hopland Research & Extension Center, Craig Ramey, et al.

Non-target hazards of 2% zinc phosphide grain bait to free-ranging ring-necked pheasants in northern California alfalfa fields, Delsey Whisson

The problem of Belding's ground squirrels in alfalfa in northeastern California, Craig Ramey

Comparison of spot baiting to bait stations using chlorophacinone for control of Belding's ground squirrels in northern California Dwayne Etter

Operation and …


Vertebrate Pests Of Agriculture, Forestry And Public Lands: 1997 Annual Meeting Jan 1997

Vertebrate Pests Of Agriculture, Forestry And Public Lands: 1997 Annual Meeting

Western Region Coordinating Committee for Vertebrate Pests of Agriculture, Forestry, and Public Lands (WCC-95)

New approaches to reducing gnawing and digging behaviors in the northern pocket gopher, Monty Sullins

A comparison of zinc phosphide and strychnine oat baits for the control of the northern pocket gopher, Leonard Askham

Efficacy of Turf Shield® Repellent to reduce goose and duck use of grass areas adjacent to ponds, lakes and rivers, Dale Nolte

Efficacy of selected commercial repellents to inhibit deer browsing, Gary Witmer and Brian Moser

The effects of wild and domestic ungulate grazing on the vegetation, birds, and small mammals on Bridge Creek Wildlife Area, northeastern Oregon, Timothy Van Deelen

Deer-northern white cedar interactions and …


"Vertebrate Pests Of Agriculture, Forestry And Public Lands" 1996 Annual Meeting Jan 1996

"Vertebrate Pests Of Agriculture, Forestry And Public Lands" 1996 Annual Meeting

Western Region Coordinating Committee for Vertebrate Pests of Agriculture, Forestry, and Public Lands (WCC-95)

Tuesday, November 19

1:00-1:15 pm Welcome, Introductions, and Agenda Update Robert Schmidt, Committee Chair

1:15-1:30 Administrative Advisor Comments Dr. Grant Vest

Presentations:

1:30-2:00 Residue tests in rodent carcasses exposed to chlorophacinone from bait stations and hand broad casting: a simulated field trial. R. Baker

2:00-2:30 Comments on ReJeX-iT - results of a field trial on turf. R. Baker

2:30-3:00 Update on predator research at Hopland: toxic collars and guard animals. R. Timm

3:00-3:30 Break

3:30-5:00 Revision of EPA's vertebrate pest assessment guidelines. Bill Jacobs, Environmental Protection Agency

Wednesday, November 20

Presentations:

8 :30-9:00am Overview of project management at NWRC. R. …


Técnicas De Parasitología De Practicas De Campo Para El Uso Durante La Investigación De Mamíferos, Scott Lyell Gardner Jan 1996

Técnicas De Parasitología De Practicas De Campo Para El Uso Durante La Investigación De Mamíferos, Scott Lyell Gardner

Harold W. Manter Laboratory of Parasitology: Faculty Publications

First paragraph of the introduction:

La obtención de parásitos de mamíferos que son colectados durante las investigaciones o bio-inventarios toma mucho tiempo; y en el pasado, estas colectas ráramente se realizaban. De cualquier forma, los parásitos y otros simbiotas forman un componente importante de las características biologicas y ecologicas de los hospederos y deben ser muestreados. Por ejemplo, trabajos recientes en la diversidad parasitaria y la biogeografía en mamíferos de Bolivia por Gardner y Duszynski (1990), Gardner (1991), y Gardner y Campbell (1992 a,b) no hubiera popdido realizarse sin el trabajo de colección apropiado de la fauna parasitaria/simbiótica de los …


Substratum-Associated Microbiota, Christopher G. Peterson, Nancy Tuchman Jan 1996

Substratum-Associated Microbiota, Christopher G. Peterson, Nancy Tuchman

School of Environmental Sustainability: Faculty Publications and Other Works

No abstract provided.


Substratum-Associated Microbiota, Nancy Tuchman, Christopher G. Peterson Jan 1995

Substratum-Associated Microbiota, Nancy Tuchman, Christopher G. Peterson

School of Environmental Sustainability: Faculty Publications and Other Works

No abstract provided.


Substratum-Associated Microbiota, Christopher G. Peterson, Nancy Tuchman Jan 1994

Substratum-Associated Microbiota, Christopher G. Peterson, Nancy Tuchman

School of Environmental Sustainability: Faculty Publications and Other Works

No abstract provided.


Postbreeding Ecology Of Adult Male Northern Pintails And Cinnamon Teal Near Great Salt Lake, Utah, Robert R. Cox Jr. May 1993

Postbreeding Ecology Of Adult Male Northern Pintails And Cinnamon Teal Near Great Salt Lake, Utah, Robert R. Cox Jr.

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

I studied nutrient reserves, digestive organs, molt intensity, diets, and seasonal changes in food resources available to postbreeding adult male Northern Pintails (Anas acuta) and Cinnamon Teal (Anas cyanoptera) in marshes near Great Salt Lake, Utah. Total lipid and protein reserves of Northern Pintails were lower during the flightless period than before or after. For Cinnamon Teal, total protein was lowest during the flightless period, and total lipid showed a similar trend. Total mineral did not differ among plumage classes in either species. Use of nutrient reserves in these species may be an endogenous rhythm in …


Substratum-Associated Microbiota, Nancy Tuchman, Christopher G. Peterson Jan 1993

Substratum-Associated Microbiota, Nancy Tuchman, Christopher G. Peterson

School of Environmental Sustainability: Faculty Publications and Other Works

No abstract provided.


Substratum-Associated Microbiota, Christopher G. Peterson, Nancy Tuchman Jan 1992

Substratum-Associated Microbiota, Christopher G. Peterson, Nancy Tuchman

School of Environmental Sustainability: Faculty Publications and Other Works

No abstract provided.


Use Of Landsat Imagery And Geographical Information Systems In The Assessment Of Rangeland Cover And Wildlife Habitat, Mary Hunnicutt Jan 1992

Use Of Landsat Imagery And Geographical Information Systems In The Assessment Of Rangeland Cover And Wildlife Habitat, Mary Hunnicutt

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The first chapter of this thesis reviews applications of satellite remote sensing and geographical information systems (GIS) in wildlife studies. The simpler uses of remote sensing are for habitat mapping, often using satellite imagery classified for other natural resources. More sophisticated applications incorporate remotely sensed data into a GIS for the digital manipulation of data planes. The most advanced applications are those which use remote sensing and GIS in models predicting habitat quality or population levels.

The second chapter reports how brightness values of six Landsat Thematic Mapper (TM) bands were used in multiple linear regressions to predict percent cover …


The Effects Of Policy Development And Organizational Structure On The Performance Of Range Livestock Development Projects In Africa, Gregory Karl Perrier May 1991

The Effects Of Policy Development And Organizational Structure On The Performance Of Range Livestock Development Projects In Africa, Gregory Karl Perrier

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Range professionals are frequently involved in the arrangement of range development projects, both domestically and internationally. The success record of such projects has been uneven, particularly for projects in developing nations. The objective of this study was to provide range specialists a better understanding of potential management obstacles and barriers to success. This is accomplished through an examination of the management of three AID-funded pastoral development projects in Africa: the Tanzanian Masai Livestock and Range Management Project, the Somali Central Rangelands Development Project, and the Lesotho Lard Conservation and Range Development Project.

The study examined the effects of two important …


Early Career Development Processes Of Women And Men Resource Managers In The Usda Forest Service, Joseph Anthony Mincolla May 1988

Early Career Development Processes Of Women And Men Resource Managers In The Usda Forest Service, Joseph Anthony Mincolla

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study was to understand the similarities and differences in the early careers of women and men resource managers in Regions 4 and 6 of the U.S. Forest Service (FS). Since the early family socialization of boys and girls has been shown to differ, it was hypothesized that differences would also be found in the early career goals of men and women and in their ability to fit into an organization like the Forest Service, experience personal satisfaction, and become contributing, productive members.

Although more similarities than differences were observed, women had slightly different definitions of two …


Catalog Of The Recent Scandentia And Primates In The Carnegie Museum Of Natural History, Suzanne B. Mclaren, Duane A. Schlitter, Hugh H. Genoways Sep 1984

Catalog Of The Recent Scandentia And Primates In The Carnegie Museum Of Natural History, Suzanne B. Mclaren, Duane A. Schlitter, Hugh H. Genoways

University of Nebraska State Museum: Mammalogy Papers

The Section of Mammals, Carnegie Museum of Natural History, houses six specimens of Recent tree shrews and 611 specimens of Recent primates. The only family in the Order Scandentia is Tupaiidae. Primate families represented are Lemuridae, Lorisidae, Cebidae, Callitrichidae, Cercopithecidae, Pongidae, and Hominidae. For each specimen the following data are recorded: locality; date collected; catalog number; sex; age; nature of specimen; condition of specimen and comments. The latter category gives information on the condition of the skin and skeletal material, and gives information on the availability of the specimen.


Prevalence Of Extreme Detergent Resistance Among The Enterobacteriaceae, Vance Kramer, Kenneth Nickerson, Nancy V. Hamlett, Caroline O'Hara Feb 1984

Prevalence Of Extreme Detergent Resistance Among The Enterobacteriaceae, Vance Kramer, Kenneth Nickerson, Nancy V. Hamlett, Caroline O'Hara

Kenneth Nickerson Papers

The detergent-resistance properties of 208 independent isolates of the Enterobacteriaceae have been examined. Of these bacterial strains, 200 were able to grow in the presence of ≥5% sodium dodecyl sulfate, including all members of the Klebsielleae tribe. This resistance does not appear to be plasmid encoded. It is proposed that detergent-resistant organisms he termed saponotolerant or saponophilic, by analogy with other microorganisms occupying harsh ecological niches. In contrast to their prevalent resistance to anionic detergents, not one of the 208 strains tested was found to grow in the presence of three different cationic detergents. This sensitivity to cationic detergents may …


Wrcc-42 "Evaluation Of Methods To Control Rodent Damage To Hay, Range And Grain Crops" Jan 1980

Wrcc-42 "Evaluation Of Methods To Control Rodent Damage To Hay, Range And Grain Crops"

Western Region Coordinating Committee for Vertebrate Pests of Agriculture, Forestry, and Public Lands (WCC-95)

December 11

9:00 a.m. Welcome and Introduction; Ralph A. Young, Associate Director, Nevada Agr. Exp. Sta.; Paul T. Tuel1er, Administrative Advisor to WRCC-42; Committee members and visitors

9:30 Discussion of procedures for a WRCC and WRCC-42 in particular

10:00 Break

10:20 Discussion of Coordinating Committee objectives

12:00 lunch

1:30 - Presentation of research activities being conducted by

5:00 the various committee members

December 12

8:30 a.m. Continued presentation and discussion of research

10:00 Break

10:20 - General discussion of committee concerns.

12:00 Election of committee officers.

Selection of next meeting time and place.


Social Behavior And Social Organization In An Unconfined Population Of Uinta Ground Squirrels, Richard T. Paul May 1977

Social Behavior And Social Organization In An Unconfined Population Of Uinta Ground Squirrels, Richard T. Paul

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Social interactions and relationships in an unconfined population of Uinta ground squirrels were studied for two years following a 60% reduction in population size. Frequencies and patterns of interactions were evaluated in the context of the breeding cycle and compared to similar data collected before the population reduction.

Males defended territories in early spring, within which they courted females. They were highly aggressive toward other males. After the first month of activity, male aggressiveness declined and they occupied individual home ranges for the remainder of the year. Females were tolerant of other squirrels until early in pregnancy, when they became …


The Effects Of Campgrounds On Small Mammals In Canyonlands And Arches National Parks, Utah, Gregory A. Clevenger May 1977

The Effects Of Campgrounds On Small Mammals In Canyonlands And Arches National Parks, Utah, Gregory A. Clevenger

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Campground use in our national parks is increasing yearly, but little quantitative data are available concerning the impact this use is having on the ecology of the campground and surrounding area. This paper reports on some of the effects of campgrounds on small mammal populations in Canyonlands and Arches National Parks, Utah. Data collection consisted of live-trapping from April to November, 1975 (12,337 trap-nights). The populations of Ordls kangaroo rat (Dipodomys ordii), antelope ground squirrels (Ammospermophilus leucurus), deer mice (Peromyscus spp.), woodrats (Neotoma spp.), Colorado chipmunks (Eutamias guadrivittatus), and desert …


Forage Preferences Of Mule Deer In The Lodgepole Pine Ecosystem, Ashley National Forest, Utah, Joseph A. Deschamp May 1977

Forage Preferences Of Mule Deer In The Lodgepole Pine Ecosystem, Ashley National Forest, Utah, Joseph A. Deschamp

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

During the summer of 1976, five tame, trained mule deer (Odocoileus hemionus hemionus) were used to determine botanical composition and relative preference of mule deer diets on five habitat segments in the lodgepole pine (Pinus contorta) ecosystem of northeastern Utah. Diets were statistically analyzed according to estimated weight consumption per unit of time spent feeding on the different segments. Habitat segments sampled were: clearcut forest, dry and wet meadow, mature forest, and stagnated forest.

Diets differed between segments mainly because of differences in plant species available and their abundance. The diets in the non-forested segments averaged …


The Effect Of Sagebrush Reduction Practices On Sharp-Tailed Grouse Use In Southeastern Idaho, Barry Anthony Mcardle May 1977

The Effect Of Sagebrush Reduction Practices On Sharp-Tailed Grouse Use In Southeastern Idaho, Barry Anthony Mcardle

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The effects of vegetation-manipulative practices on habitat use by sharp-tailed grouse (Pedioecetes phasianellus columbianus) were studied during the period 1974-1975 in Curlew National Grasslands, Oneida County, Idaho. Vegetational transects were run twice each month during the growing season of May-August, 1974-1975, to assess vegetational differences between treatments. Transects were run to estimate sharp-tailed grouse use on the eight study areas twice monthly. Vegetational plots were used at each sharp-tailed grouse observation site to determine correlates of vegetation types and grouse use. Chained areas were used heaviest by grouse during the study period suggesting that chaining created the most …


Diet Composition And Activities Of Elk On Different Habitat Segments In The Lodgepole Pine Type, Uinta Mountains, Utah, William B. Collins May 1977

Diet Composition And Activities Of Elk On Different Habitat Segments In The Lodgepole Pine Type, Uinta Mountains, Utah, William B. Collins

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The biweekly diets of tame elk (Cervus canadensis nelsoni) were established on a species dry-weight basis for different habitat segments of the lodgepole pine (Pinus contorta) type, Principal species in the diets (5% or more) on each habitat segment were generally composed of preferred species. However, some highly abundant but non-preferred species took on principal dietary status, whereas some preferred species, scarce in the vegetation, contributed less than 5 percent to diets. Forbs contributed most to total consumption; grasses and sedges were the second largest contributors. Browse appeared to be of limited importance, but mushrooms had …


Stability Of Stream Communities Exposed To Underground Nuclear Tests On Amchitka, Aleutian Islands, Alaska, Richard Ames Valdez May 1975

Stability Of Stream Communities Exposed To Underground Nuclear Tests On Amchitka, Aleutian Islands, Alaska, Richard Ames Valdez

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A major bioenvironmental effect of The United States Atomic Energy Commission's Underground Nuclear Testing Program on Amchitka Island, Alaska was the decimation of stream communities by drilling muds from the device emplacement holes. These muds reached two of these streams 4 months and 2 years before the Milrow and Cannikin tests, respectively. Recolonization of fishes and macroinvertebrates in these small streams (Clevenger and White Alice Creeks) began 1 month after spill abatement.

Complete recovery of Dolly Varden in Clevenger Creek occurred less than 5 years after the spill. Of the other native fishes, pink salmon spawned 1 1/2 years after …


Rates Of Food Digestion By Brown Trout (Salmo Trutta) In The Blacksmith Fork River, Utah, John M. Salevurakis May 1974

Rates Of Food Digestion By Brown Trout (Salmo Trutta) In The Blacksmith Fork River, Utah, John M. Salevurakis

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Digestion rates have been measured for brown trout (Salmo trutta Linn.) during summer, fall, winter and spring seasons on the Blacksmith Fork River, Utah. Exponential rates of digestion varied from a gradual rate of -0.2372 to an accelerated rate of -0.6808. Factors found to affect digestion rate most were water temperature and the amount of food in the stomach. The affect of temperature was not clearly isolated. However, the amount of food in the stomach, at the beginning of the digestion study, appeared to have the most pronounced effect. Four of the five digestion rate measurements, with high coefficients …


The Effects Of Herbicidal Spraying Upon A North Central Utah Blue Grouse Population, T. Barry Barnes May 1974

The Effects Of Herbicidal Spraying Upon A North Central Utah Blue Grouse Population, T. Barry Barnes

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The effects of herbicidal spraying upon a North Central Utah blue grouse population were studied. Baseline data were obtained in 1970 and 1971 prior to the spraying on June 2, 1972. The spraying was done to control wyethia (Wyethia amplexicaulis) and black sage (Artimesia nova) which covered 48 percent and 20 percent of the study area respectively.

No differences in blue grouse numbers occurred following spraying with 17 to 20 broods using the area in 1972 compared to 18 to 20 broods in 1971. Total population of blue grouse each year was between 90 and 104 …


Inventory Of Lake Studies In Maine, Charles F. Wallace Jr., James M. Strunk Jul 1973

Inventory Of Lake Studies In Maine, Charles F. Wallace Jr., James M. Strunk

Maine Collection

Inventory of Lake Studies in Maine

By Charles F. Wallace, Jr. and James M. Strunk

State Planning Office, Water Resources Planning Division, July 1973.

"Printed under Appropriation Number 4248.5 and financially assisted by planning grants from the United States Water Resources Council Title III funds."

Contents: Introduction / Investigating Agencies / Federal Agencies / State Agencies / Regional Planning Commissions and Economic Development Districts / Maine Colleges and Universities / Private / Other Private / Other / Appendices


Primary Production In A Cache Valley, Utah Farm Pond, J. Kent Summers May 1973

Primary Production In A Cache Valley, Utah Farm Pond, J. Kent Summers

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Primary production was measured on a 9.5 acre Cache Valley, Utah farm pond from July 1971 to July 1972. Polyethylene film tubes, with lids, were used to confine columns of water for determining dissolved oxygen concentration. Once a week, dissolved oxygen samples were taken at sunset, the following sunrise and sunset. Annual primary production was estimated at 1289 grams oxygen per square meter for two of the four stations, and 927 grams oxygen per square meter for the remaining two stations.

The weekly data was computed at once a month intervals to see if it would be possible to get …


An Autecological Study Of Blackbrush (Coleogyne Ramosissima Torr.) In Southwestern Utah, James E. Bowns May 1973

An Autecological Study Of Blackbrush (Coleogyne Ramosissima Torr.) In Southwestern Utah, James E. Bowns

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study was to provide basic ecological information on an important but little studied major vegetation type through autecological investigations of the dominant species. Data include climate and soils where this species occurs, root distribution, phenology and growth, seed germination requirements and seedling survival. Percent ground cover provided by blackbrush and other dominant plants as well as the composition of herbaceous understory vegetation was presented. Leaf and stem anatomy of blackbrush revealed features typical of desert shrub species with stem splitting appearing to be a characteristic of this species.

Blackbrush is characterized as a poor forage species …