Digital Commons Network^™

Simultaneous Use Of Mark-Recapture And Radiotelemetry To Estimate Survival, Movement, And Capture Rates, Larkin A. Powell, Michael J. Conroy, J. E. Hines, James Nichols, David Krementz

School of Natural Resources: Faculty Publications

Biologists often estimate separate survival and movement niles from radiotelemetry and markrecapture data from the same study population. We describe a method for combining these data l:)pes in a Single model to obtain joint, potentially less biased estimates of survival and movement that use all available data. We furnish an example using wood thrushes (Hylocichla mustelina) captured at the Piedmont National Wildlife Refuge in central Georgia in 1996. The model structure allows estimation of survival and capture probabilities, as well as estimation of movements away from and into the study area. In addition, the model structure provides many possibilities for …

Effects Of Forest Management On Density, Survival, And Population Growth Of Wood Thrushes, Larkin A. Powell, Jason D. Lang, Michael J. Conroy, David Krementz

School of Natural Resources: Faculty Publications

Loss and alteration of breeding habitat have been proposed as causes of declines in several Neotropical migrant bird populations. We conducted a 4-year study to, determine the effects of winter prescribed burning and forest thinning on breeding wood thrush (Hylocichla mustelina) populations at the Piedmont National Wildlife Refuge (PNWR) in Georgia. We estimated density, adult and juvenile survival rates, and apparent annual survival using transect surveys, radiotelemetry, and mist netting. Burning and thinning did not cause lower densities (P = 0.25); wood thrush density ranged from 0.15 to 1.30 pairs/10 ha. No radiomarked male wood thrushes (n = 68) died …

Variation In Wood Thrush Nest Dimensions And Constructio, Larkin A. Powell, Kathleen Rangen

School of Natural Resources: Faculty Publications

We collected 48 nests from radio-marked and nonradio- marked female Wood Thrushes (Hylocichla mustelina) at the Piedmont National Wildlife Refuge in central Georgia and conducted statistical analyses to determine the sources of variation in nest size. Each nest measurement had a large coefficient of variation, but we found trends in six of eight nest measurements related to date, nest number, female occupant, or nest success. Regression analyses showed that cup depth, nest wall width, and exterior nest height decreased during the season, while cup width increased (0.14 < R 2 <0.24). A repeated-measures linear model, comprised of study plot, nest number, and occupant effects, adequately described much of the variation in the multi-broodedr,a dio-markedf emales' (n = 24 nests) nest size (0.55 < R 2 < 0.84). Cup depth, cup width, exterior nest height, and nest weight showed differences among nest attempt number, while weight and exterior nest height showed differences related to individual females. We also found evidence that nestlings in successful nests apparently enlarged the nest cup. Very little is known about short-term variation in nest size and shape, but our results indicate that female Wood Thrushes may change the size of their nests for various reasons during the breeding season.

Breeding Season Demography And Movements Of Eastern Towhees At The Savannah River Site, South Carolina, David G. Krementz, Larkin A. Powell

School of Natural Resources: Faculty Publications

The Eastern Towhee (Pipilo erythrophthalmus) has undergone population declines across much of its range, especially in New England. Despite being a widespread and, at one time, a common species, relatively little is known about its natural history, ecology, or demographics. We conducted baseline research on Eastern Towhees at the Savannah River Site, South Carolina, in 1995 and 1996 to estimate breeding season survival rates, nest success rates, breeding densities, and daily movements. We also were interested in whether towhees had differences in survival and movement rates between young and mature managed pine stands. We found that survival rates during the …

Remote Monitoring Of Selected Ground-Water Dominated Lakes In The Nebraska Sand Hills, David C. Gosselin, Donald C. Rundquist, Stuart K. Mcfeeters

School of Natural Resources: Faculty Publications

The Landsat-Multispectral Scanner (MSS) data were used to measure lake area fluctuations (1972-1989) for 130 groundwater dominated lakes in the Western Lakes Region of the Nebraska Sand Hills. In general, the pattern shown in lake area hydrographs was similar to that for in-situ lake elevations. In-situ lake-elevation data verify that remote monitoring of surface- area fluctuations, even at relatively coarse spatial resolution, is not only practical and useful, but also it elucidates the hydrologic characteristics of groundwater-dominated lakes of the Sand Hills. The apparent differences in behavior between lakes in the northern and southern portions of the study area may …

Process-Oriented Environmental Change Curriculum-Development Workshops, David C. Gosselin, Sherri Lowrey, Steven John Meyer

School of Natural Resources: Faculty Publications

To improve scientific literacy, K-12 educators need to: develop the ability to use and analyze data, incorporate data into their curriculum, and interact with teachers from other disciplines to create interdisciplinary units. A Process-Oriented Environmental Change Education workshop was conducted for eleven interdisciplinary teams, consisting of 21 teachers, in 1997 and 1998. The National Science Standards provided the criteria for the organization of the workshop. Inquiry and interpretation exercises helped to expand scientific knowledge and skills as well as the teachers’ use of technology. We explicitly discussed the uncertainty of science through group discussions and problem-solving activities. More than 85% …

2. Assessing Metacognition And Self-Regulated Learning, Paul R. Pintrich, Christopher A. Wolters, Gail P. Baxter

Issues in the Measurement of Metacognition

In this chapter we provide an overview of the conceptual and methodological issues involved in developing and evaluating measures of metacognition and self-regulated learning. Our goal is to suggest a general framework for thinking about these assessments- a framework that will help generate questions and guide future research and development efforts. Broadly speaking, we see the main issue in assessing metacognition and self-regulated learning as one of construct validity. Of critical importance are the conceptual or theoretical definitions of these constructs and the adequacy of the empirical evidence offered to justify or support interpretations of test scores obtained from instruments …

Revision Of Pedethma Weise (Coleoptera: Chrysomelidae), Steven W. Lingafelter, Alexander S. Konstantinov

USDA Systematic Entomology Laboratory

The flea beetle genus Pedethma Weise (Coleoptera: Chrysomelidae), occurring in Queensland and New South Wales, Australia, is revised. Pedethma fuscipennis Weise is designated as the type species. Lectotypes are designated for P. fuscipennis Weise, P. malandensis Weise, and P. suturalis Weise. Fourteen new species are described (type locality in parentheses): P. australiensis Lingafelter and Konstantinov (Queensland: Mt. Glorious National Park); P. cookensis Lingafelter and Konstantinov (Queensland: Mt. Cook); P. demiensis Lingafelter and Konstantinov (Queensland: Mt. Demi); P. howdeni Lingafelter and Konstantinov (Queensland: Mt. Lewis); P. humeromaculata Lingafelter and Konstantinov (Queensland: Windin Falls via Butchers Creek); P. kirejtshuki Lingafelter and Konstantinov …

Higher Level Learning: A Taxonomy For Identifying Different Kinds Of Significant Learning, L. Dee Fink

Professional and Organizational Development Network in Higher Education: Archives

An in-depth look at strategies for Higher Level Learning.

G1419 Community Supported Agriculture, Paul Swanson

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide explains what community supported agriculture is, how it works and what producers will need to do to participate.

Most Nebraskans have not heard of Community Supported Agriculture (CSA) but the concept is about three decades old in Japan and Europe and about 10-15 years old on the east coast of the United States.

In Japan, because of continued loss of farmland to urbanization and the migration of farmers to the city, a group of women approached local farm families with the idea of direct marketing produce from area farms to urban residents. This created an alternative distribution system …

The Cost Of Limited Attention In Blue Jays, Reuven Dukas, Alan Kamil

Papers in Behavior in Biological Sciences

Experiments with fish and birds suggest that animals are unable to simultaneously allocate sufficient attention to tasks such as the detection of an approaching predator while searching for cryptic prey. We quantified the effects of limited attention on performance in controlled laboratory settings and report here the first direct evidence that attending to a difficult central task simulating foraging deters a bird’s ability to detect a peripheral target, which could be a predator. Our results fill a gap between ecological and neurobiological studies by illustrating that, although attention is an efficient filtering mechanism, limited attention may be a major cause …

Exposing The ‘Pretty Woman’ Myth: A Qualitative Investigation Of The Lives Of Female Streetwalkers, Rochelle L. Dalla Dr.

Department of Child, Youth, and Family Studies: Faculty Publications

Intensive interviews were conducted with 43 women involved in street-walking prostitution. Data were analyzed according to Phenomenological Descriptive Analysis, results of which are presented in two parts. Detailed accounts of the lives of a subgroup of 5 participants are described first, followed by a broader discussion of results including the entire sample of 43. Themes common across the larger group are presented int three segments, including (a) early development, (b) life in "the game," and (c) leaving the streets. Implications for advocacy and further research are presented.

Wildland Fire In Ecosystems Effects Of Fire On Flora, R. James Ansley, Stephen F. Arno, Brent L. Brock, Patrick H. Brose, James K. Brown, Luc C. Duchesne, James B. Grace, Gerald J. Gottfried, Sally M. Haase, Michael G. Harrington, Brad C. Hawkes, Greg A. Hoch, Melanie Miller, Ronald L. Myers, Marcia G. Narog, William A. Patterson Iii, Timothy E. Paysen, Kevin C. Ryan, Stephen S. Sackett, Dale D. Wade, Ruth C. Wilson

Joint Fire Science Program Synthesis Reports

This state-of-knowledge review about the effects of fire on flora and fuels can assist land managers with ecosystem and fire management planning and in their efforts to inform others about the ecological role of fire. Chapter topics include fire regime classification, autecological effects of fire, fire regime characteristics and postfire plant community developments in ecosystems throughout the United States and Canada, global climate change, ecological principles of fire regimes, and practical considerations for managing fire in an ecosytem context.

Leadership In Wolf, Canis Lupus, Packs, L. David Mech

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

I examine leadership in Wolf (Callis lupus) packs based on published observations and data gathered during summers from 1986 to 1998 studying a free-ranging pack of Wolves on Ellesmere Island that were habituated to my presence. The breeding male tended to initiate activities associated with foraging and travel, and the breeding female to initiate, and predominate in, pup care and protection. However, there was considerable overlap and interaction during these activities such that leadership could be considered a joint function. In packs with multiple breeders, quantitative information about leadership is needed.

Do Wolves Affect White-Tailed Buck Harvest In Northeastern Minnesota?, L. David Mech, Michael E. Nelson

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

We used simple linear regression to analyze 8-23 years of data on a wolf (Canis lupus) population and human harvest of white-tailed deer (Odocoileus virginianus) bucks in northeastern Minnesota to determine any effects of wolves on buck harvesting. Over the long term, wolves accounted for at least 14-22% inter-year variation in buck harvest in the region, but an unknown amount of variation in hunter effort have obscured any more precise estimate. For part of the area with poorest habitat, we found strong relationships (r² = 0.66-0.84) between annual wolf numbers and buck harvests from 1988 …

Use Of The Generalized Integral Transform Method For Solving Equations Of Solute Transport In Porous Media, Chongxuan Liu, Jim E. Szecsody, John M. Zachara, William P. Ball

United States Department of Energy: Publications

The generalized integral transform technique (GITT) is applied to solve the one-dimensional advection-dispersion equation (ADE) in heterogeneous porous media coupled with either linear or nonlinear sorption and decay. When both sorption and decay are linear, analytical solutions are obtained using the GITT for one-dimensional ADEs with spatially and temporally variable flow and dispersion coefficient and arbitrary initial and boundary conditions. When either sorption or decay is nonlinear the solutions to ADEs with the GITT are hybrid analytical-numerical. In both linear and nonlinear cases, the forward and inverse integral transforms for the problems described in the paper are apparent and straightforward. …

Partridges, Quails, Francolins, Snowcocks, Guineafowl, And Turkeys Status Survey And Conservation Action Plan, 2000–2004, Richard A. Fuller, John P. Carroll, Philip J. K. Mcgowan, Wpa/Birdlife/Iuch-Ssc Partridge, Quail And Francolin Specialist Group

Galliformes Specialist Group and Affiliated Societies: Reports and Other Materials

Executive Summary

This Action Plan covers the partridges, quails, francolins, snowcocks, guineafowl, and turkeys, a group of nearly 150 ground-dwelling gamebirds found in every continent apart from Antarctica. They live in a wide variety of habitats from tropical forests, high-altitude alpine zones, temperate forests, and open country of various kinds, to desert environments. Although they are very widespread, little is known about the species occurring outside Europe and North America. Several species are considered to be at grave risk of extinction, while others are so poorly known that it is difficult to evaluate their conservation needs. In 1995, the first …

Ec00-130-D 2000 Guide For Weed Management In Nebraska, Alex R. Martin, Fred W. Roeth, Robert G. Wilson

University of Nebraska-Lincoln Extension: Historical Materials

EC 00-130-D: This circular is a guide for managing weeds in Nebraska for the year 2000. Information is provided on different types of weeds, pesticides which should be used to manage those weeds, and different tools for applying pesticides. Data was collected over how weeds reacted to different pesticides and a listing of prices of pesticides so that the proper pesticide could be chosen to manage the weeds.

Gamma Sigma Delta, Nebraska Chapter Newsletter, Issue #21, August 2000

Gamma Sigma Delta, Nebraska Chapter: Newsletters

PRESIDENT'S MESSAGE - Beth Birnstihl, President, Nebraska Chapter

CURRENT MEMBERSHIP REPORT - Charles H. Adams

FALL ACTIVITIES

TREASURER'S REPORT

SCHOLARSHIP RECOGNITION DINNER AWARD RECIPIENTS

NOTES FROM THE HISTORIAN

NOMINATIONS FOR MEMBERSHIP TO GAMMA SIGMA DELTA August 2000

Merit Award Nomination

Extension Award Nomination

Teaching Award Nomination

Research Award Nomination

Soil Quality Assessment After Weed-Control Tillage In A No-Till Wheat–Fallow Cropping System, Timothy A. Kettler, Drew J. Lyon, John W. Doran, W. L. Powers, Walter W. Stroup

Department of Statistics: Faculty Publications

Adoption of reduced-tillage fallow systems in the western USA is limited by winter annual grass weeds such as downy brome (Bromus tectorum L.). Moldboard plowing is an effective means of controlling downy brome in winter wheat (Tritcum aestivum L.)–fallow systems. The purpose of this study was to assess the influence of plowing and secondary tillage operations, for the purpose of weed control, on soil quality attributes of a silt loam soil that had been cropped in a subtill or no-till (NT) winter wheat–fallow system for more than 20 yr. Compared with undisturbed NT, downy brome populations in plowed …

Using The Mystery Motivator To Improve Child Bedtime Compliance, Kristin E. Robison, Susan M. Sheridan

Department of Educational Psychology: Faculty Publications

Child bedtime problems are commonly reported by parents. A number of behavioral techniques, including extinction of tantrum behaviors, reinforcement of compliant bedtime, and implementation of consistent bedtime routines have been successful in improving bedtime compliance. The present study examined the effects of the ‘‘Mystery Motivator’’ (MM), a behavioral contract designed to remediate bedtime problems by delivering random reinforcement. Emphasis was placed on the optimal use of clinical intervention by enlisting parents as primary change agents in the home setting. Three adults and their four children, aged 3-5 years, participated. Three of the four children showed substantial changes in both time …

Genetic Diversity And Transcriptional Analysis Of The Bys1 Gene From Blastomyces Dermatitidis, James L. Bono, Basam Jaber, Mark A. Fisher, Raed O. Abuodeh, Erin O’Leary-Jepson, Gene M. Scalarone, Laurens H. Smith Jr.

Roman L. Hruska U.S. Meat Animal Research Center: Reports

Blastomyces dermatitidis, a pathogenic fungal organism, is able to exist in two differentmorphologies, a multicellular mycelium or a unicellular yeast, according to temperature, 25˚C and 37˚C respectively. The switching between morphologies must be accompanied by a cascade of signaling events in which expression of genes responsible for the change of morphology is increased or decreased. bys1, a gene from B. dermatitidis isolate #58, is expressed at high levels in the unicellular yeast, but gradually diminishes as the temperature is lowered and the organism converts to the mycelial phase where there is no transcription of bys1. We explored …

Effect Of Antimicrobial Agents On Livestock Waste Emissions, Vincent H. Varel, Daniel N. Miller

Roman L. Hruska U.S. Meat Animal Research Center: Reports

Various antimicrobial agents were evaluated with the purpose of reducing the microbial fermentation in stored cattle waste and the resulting odor emissions. Duplicate sealed 2-L flasks with 500 ml waste slurry, with and without antimicrobial inhibitors, were used to measure the production of short-chain volatile fatty acids, lactate, and total fermentation gas over 27–30 days. A combination of chlorhexidine diacetate (2 mM), iodoacetate (2 mM), and α-pinene (3.8 mM) reduced gas production 80% (1000 ml to 200 ml) and total volatile fatty acid production 50% (145 mM to 72 mM). Pinene had little antimicrobial effect; rather, it served as an …

"Vertebrate Pests Of Agriculture, Forestry And Public Lands" 2000 Annual Meeting

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

Table of Contents ........................................................... i

2000 Officers ............................................................... 1

Minutes ................................................................... 2

Number and Title of the Regional Project ................................... 2

Location and Dates of the Meeting ....................................... 2

Participants .......................................................... 2

Attendees ............................................................ 3

Adopted Agenda ...................................................... 4

Convening of Sessions (Tuesday 14 November) ............................... 4

Forum: Internet Resources in Wildlife Damage Management .................... 4

2000 Business Meeting (Wednesday 15 November) ............................ 4

Presentations (Wednesday 15 November) .................................... 9

Continued Presentations (Thursday 16 November) ........................... 10

Individual Updates ................................................... 11

Completion of Sessions ................................................ 13

Participants/ Attendees Names and Addresses . . . . . . . . . …

Identification And Characterization Of A New Allele For The Beta Subunit Of Follicle-Stimulating Hormone In Chinese Pig Breeds, M. D. Li, G. A. Rohrer, T. H. Wise, J. J. Ford

Roman L. Hruska U.S. Meat Animal Research Center: Reports

During evaluation of follicle-stimulating hormone- beta (FSHB) expression in anterior pituitary glands by an RNase protection assay (RPA), the expected fragment of 205 nucleotides at positions 759-963 was not detected in one boar that had moderate plasma and pituitary FSH concentrations. After subcloning and sequencing, mRNA from this boar lacked an 11-bp fragment (59-CATTTGGAAAC-39) at nucleotide positions 807-817 of the 39-untranslated region (39-UTR, D allele). Wild-type FSHB (WT allele) was present in pituitary RNA and genomic DNA in both Meishan (MS) and White Composite (WC) pigs; whereas the D allele was present only in MS pigs (P < 0·01; 5/6 MS vs. 0/6 WC). Also, we found the D allele in …

Porcine Erythropoietin Receptor: Molecular Cloning And Expression In Embryonic And Fetal Liver, P. L. Pearson, T. P. L. Smith, T. S. Sonstegard, H. G. Klemcke, R. K. Christenson, J. L. Vallet

Roman L. Hruska U.S. Meat Animal Research Center: Reports

The full coding sequence for porcine erythropoietin receptor (EPOR) was elucidated using reverse transcription polymerase chain reaction (PCR) (rtPCR) and 39 and 59 rapid amplification of cDNA ends (RACE) procedures. Total RNA collected from Day 30 fetal liver was used as starting material. A 1843 bp sequence was obtained from which could be inferred a 509 amino acid protein which was 79–85% identical to the amino acid sequence of erythropoietin receptor from other species. Total RNA samples collected from white crossbred intact, white crossbred UHO and Meishan gilts on Days 24, 30 and 40 of gestation were subjected to Northern …

Mutations In The Genome Of Porcine Reproductive And Respiratory Syndrome Virus Responsible For The Attenuation Phenotype, R. Allende, G. F. Kutish, W. Laegreid, Z. Lu, T. L. Lewis, D. L. Rock, J. Friesen, J. A. Galeota, A. R. Doster, Fernando A. Osorio

Roman L. Hruska U.S. Meat Animal Research Center: Reports

Although live-attenuated vaccines have been used for some time to control clinical symptoms of the porcine reproductive and respiratory syndrome (PRRS), the molecular bases for the attenuated phenotype remain unclear. We had previously determined the genomic sequence of the pathogenic PRRSV 16244B. Limited comparisons of the structural protein coding sequence of an attenuated vaccine strain have shown 98% homology to the pathogenic 16244B. Here we have confirmed the attenuated phenotype and determined the genomic sequence of that attenuated PRRSV vaccine and compared it to its parental VR- 2332 and the 16244B strains. The attenuated vaccine sequence was colinear with that …

Reproductive Success Of Piping Plovers On Alkali Lakes In North Dakota And Montana, Robert K. Murphy, Michael J. Rabenberg, Marriah L. Sondreal, Bruce R. Casler, Debra A. Guenther

United States Fish and Wildlife Service: Publications

Low reproductive success is thought to be a chief cause of the steady decline in numbers of piping plover (Charadrius melodus) that nest in the northern Great Plains. Surprisingly, few reproductive success data are published from alkali lakes in the region, where most breeding pairs of piping plover nest. During 1994 to 1997 we measured nest success and fledging rates of piping plovers at 32 alkali lakes across northwestern North Dakota and northeastern Montana, at the center of the species' breeding range in the Great Plains. Annual nest success and fledging rates averaged 38% (Mayfield estimate; 20 to …

Review Of Parasites Of North American Freshwater Fishes, Second Edition, Wilmer A. Rodgers

United States Fish and Wildlife Service: Publications

In this second edition, the author uses the traditional better-known taxonomy, although a table listing the contemporary (or future) classification is presented in the foreword. The beginning of the book covers the public health aspects of fish parasites, and discusses methods of examining and collecting fish, and then preserving and making permanent preparations. These sections will be very helpful to students and researchers, as are the sections that list parasites by location in fish. The next sections present major groups of parasites and detailed genera and species. Drawings and photographs make identification relatively easy. An important addition to this second …

Non-Native Species Interactions: Management Implications To Aid In Recovery Of The Colorado Pikeminnow Ptychocheilus Lucius And Razorback Sucker Xyrauchen Texanus In The San Juan River, Co-Nm-Ut, James E. Brooks, Michael J. Buntjer, Jude R. Smith

United States Fish and Wildlife Service: Publications

As part of the San Juan River Basin Recovery Implementation Program (SJRIP), investigations of non-native fishes were conducted during 1991-1997 to characterize interactions with native fishes. The impacts of non-native fish species on natives has often been identified as a key impact, along with habitat alteration, that facilitates loss of native biological diversity. In the San Juan River, the endangered Colorado pikeminnow Ptychocheilus lucius and razorback sucker Xyrauchen texanus, as well as the other members of the native fish community, are the focus of the SJRIP. A major component of native fish recovery efforts in the San Juan River …