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Use Of Fatty Acid Stores By Larvae And Adults Of A Nebraska Salt Marsh Tiger Beetle, Cicindela Togata Globicollis Casey, W. Wyatt Hoback, R. L. Rana, D. W. Stanley

Great Plains Research: A Journal of Natural and Social Sciences (through 2013)

Tiger beetles are common predators in open habitats throughout the Great Plains, including the eastern salt marshes. Adult tiger beetles are active searchers that attack and eat small insects. By contrast, their larvae are sit-and-wait predators that form permanent burrows and depend on prey moving within striking distance. We hypothesized that adults and larvae of the tiger beetle, Cicindela togata globicollis Casey, would differ in their utilization of lipid (fat) energy reserves, such as fatty acids, based on differences in the likelihood of starvation. To investigate this, we determined the fatty acid profiles from larvae and adult tiger beetles. We …

Great Plains Research, Volume 10, Number 1, Spring 2000 – Critical Dialogue, Svata M. Louda

Great Plains Research: A Journal of Natural and Social Sciences (through 2013)

With the following articles, we are pleased to initiate a new section, called "Critical Dialogue," to be published whenever a manuscript is accepted that we think addresses a particularly important, potentially controversial issue in the Great Plains. The purpose of the section will be to present alternative perspectives on such issues, to inform our readers and to stimulate rational discussion of the data available for science-based policy and management decisions. Thus, we will invite and peer-review a reasoned response to the stimulating manuscript, and we will provide the original author(s) with an opportunity for rebuttal to that response.

Production Agriculture Versus The Environment: The Role Of Statistics, Linda J. Young

Great Plains Research: A Journal of Natural and Social Sciences (through 2013)

Corn production in the United States provides an example of the agricultural changes that have occurred in recent times. Because all such agricultural activity potentially can affect the environment to some degree, the challenge is now to quantify and understand those effects. Although monitoring of the environment for such effects is not new, the procedures often fall short of providing reliable quantitative data. One example is the inconsistent, incomplete, and unreliable information currently available to assess US surface water quality and trends in that quality. The utilization of probability-based sampling designs could playa vital role in the improvement of information …

Influence Of Past Interactions On The Prairie Today: A Hypothesis, Kathleen H. Keeler

Great Plains Research: A Journal of Natural and Social Sciences (through 2013)

Past conditions in North American prairies have left behind animals and plants whose features were shaped by interactions, some of which no longer exist. For example, pronghorns are fast runners but there are now no fast predators to chase them. Similarly, bison activity structured grasslands, but few prairie reserves now have bison. Here I draw attention to possible cases where ecological patterns are best explained by conditions not present in the modern prairie and propose that such outcomes may be more important than presently thought. My aim is to stimulate a reevaluation of prairie organisms and the effect of their …

American Society Of Parasitologists Newsletter, V. 22, No. 1, April 1, 2000, Scott Lyell Gardner

American Society of Parasitologists: Newsletter

An issue of the American Society of Parasitologists' quarterly newsletter, also called the Journal of Parasitology Newsletter.

How The Host ‘Sees’ Pathogens: Global Gene Expression Responses To Infection, Ian D. Manger, David A. Relman

United States Department of Veterans Affairs: Publications

Innate immune responses to pathogens are believed to be patterned and stereotyped. Adaptive responses display variety but in relatively few types of products and with limited numbers of mechanisms. Is this apparent disparity between microbial pathogen diversity and a restricted set of host responses an accurate picture of infection or is it the result of a limited collection of analytic tools? DNA microarray technology permits one to address simple descriptive questions about global gene expression inside cells. In particular, it offers an opportunity to examine the relationship between host and pathogen in much greater detail than has been possible previously. …

Effects Of Acid Adaptation Of Escherichia Coli O157:H7 On Efficacy Of Acetic Acid Spray Washes To Decontaminate Beef Carcass Tissue, Elaine Berry, Catherine N. Cutter

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Exposure to low pH and organic acids in the bovine gastrointestinal tract may result in the induced acid resistance of E. coli O157:H7 and other pathogens that may subsequently contaminate beef carcasses. The effect of acid adaptation of E. coliO157:H7 on the ability of acetic acid spray washing to reduce populations of this organism on beef carcass tissue was examined. Stationary-phase acid resistance and the ability to induce acid tolerance were determined for a collection of E. coliO157:H7 strains by testing the survival of acid-adapted and unadapted cells in HCl-acidified tryptic soy broth (pH 2.5). ThreeE. coli …

Long-Term Spatial Stability Of Coyote (Canis Latrans) Home Ranges In Southeastern Colorado, Ann M. Kitchen, Eric M. Gese, Edward R. Schauster

United States Department of Agriculture Wildlife Services: Staff Publications

Long-term stability of territorial boundaries has not been well documented in canids. To evaluate the prevalence of long-term spatial stability of coyote (Canis latrans) home ranges, we compared the overlap of territorial boundaries and the spatial distribution of telemetry locations of packs in southeastern Colorado. From August 1983 to July 1988 (period l), 16 coyotes from six packs were radio-tracked. From April 1996 to August 1997 (period 2), 12 coyotes from six packs were captured and tracked in the same area. Mean percentage of overlap of pack ranges was 89.8 ± 8.3% (+SD) for period 1 ranges over …

X-Ray Structure Of The Quinoprotein Ethanol Dehydrogenase From Pseudomonas Aeruginosa: Basis Of Substrate Specificity, Thomas Keitel, Annette Diehl, Tobias Knaute, John J. Stezowski, Wolfgang Hohne, Helmut Görisch

John J. Stezowski Publications

The homodimeric enzyme form of quinoprotein ethanol dehydrogenase from Pseudomonas aeruginosa ATCC 17933 crystallizes readily with the space group R3. The X-ray structure was solved at 2.6 Å resolution by molecular replacement. Aside from differences in some loops, the folding of the enzyme is very similar to the large subunit of the quinoprotein methanol dehydrogenases from Methylobacterium extorquens or Methylophilus W3A1. Eight W-shaped β-sheet motifs are arranged circularly in a propeller-like fashion forming a disk-shaped superbarrel. No electron density for a small subunit like that in methanol dehydrogenase could be found. The prosthetic group is located in the centre …

Importance Of Migrating Salmon Smolt In Ring-Billed (Larus Delawarensis) And California Gull (L. Californicus) Diets Near Priest Rapids Dam, Washington, Darryl L. York, John L. Cummings, John E. Steuber, Patricia A. Pochop, Christi A. Yoder

United States Department of Agriculture Wildlife Services: Staff Publications

Ring-billed (Larus delawarensis) and California Gulls (L. californicus) have been implicated in depredations on migrating salmon smolt in the Columbia River. As part of a gull management program conducted in 1995 and 1996, we collected L. delawarensis (n = 120) and L. californicus (n = 45) near Priest Rapids Dam, Washington, and analyzed stomach contents to determine food habits and thus the importance of fish in gull diets. Percent volume measurements and index of relative importance rankings suggested a greater reliance on fish by L. californicus than by L. delawarensis. Peak percent consumption of fish by …

Natural Transfer Of Helminths Of Marine Origin To Freshwater Fishes, With Observations On The Development Of Diphyllobothrium Alascence, Robert L. Rausch, Ann M. Adams

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Infective stages of helminths of 5 species that occur as adults in marine mammals were found in burbot, Lota lota (L.) (Gadidae), from the lower Kuskokwim River (southwestern Alaska): Diphyllobothrium alascense Rausch et Williamson, 1958; Pyramicocephalus phocarum (Fabricius, 1780); Corynosoma strumosum (Rudolphi, 1801); Corynosoma semerme (Forsell, 1904); and Pseudoterranova decipiens (Krabbe, 1878). Some larval stages were obtained also from smelt, Osmerus mordax dentex Steindachner, an anadromous fish important as prey of burbot. Burbot, which are freshwater fish, could become paratenic hosts of those helminths by means of at least three interactions: by consuming marine fishes in brackish waters at river …

Genetic Parameters Among Weight, Prolificacy, And Wool Traits Of Columbia, Polypay, Rambouillet, And Targhee Sheep, C. M. Bromley, G. D. Snowder, L. Dale Van Vleck

Department of Animal Science: Faculty Publications

Genetic parameters for Columbia, Polypay, Rambouillet, and Targhee sheep were estimated using REML with animal models for prolificacy, weight, and wool traits. All bivariate analyses included a covariance between additive genetic effects for the two traits plus appropriate additional covariances. Number of observations by breed ranged from 5,140 to 7,095 for prolificacy traits, from 7,750 to 9,530 for weight traits, and from 4,603 to 34,746 for wool traits. Heritability estimates ranged from .03 to .11 for prolificacy traits (litter size at birth and litter size at weaning), from .09 to .26 for weight traits (birth weight and average daily gain), …

Air Quality And Shelterbelts: Odor Mitigation And Livestock Production, A Literature Review, John Tyndall, Joe Colletti

United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications

This literature review is focused on the potential for innovative use of trees and other vegetation to reduce the odor associated with livestock production. The goal is to examine available evidence to assess if trees and shelterbelts may: 1) be able to help control odor through physical and biological means, and 2) be an economically feasible technology for livestock producers as well as surrounding communities.

Hydrologic Variation In The Northern Great Plains During The Last Two Millennia, Sherilyn C. Fritz, Emi Ito, Zicheng Yu, Kathleen R. Laird, Daniel R. Engstrom

Department of Earth and Atmospheric Sciences: Faculty Publications

Reconstructions of lake-water salinity at decadal resolution for the last 2,000 years are compared among three lakes in North Dakota to infer regional patterns of drought. The intersite comparisons are used to distinguish local variation in climate or hydrology from regional patterns of change. At one lake, diatom-inferred salinity and lake-water Mg/Ca inferred from ostracode shell chemistry are coherent, both in terms of direction and magnitude of change, indicating that each is a robust technique for reconstructing lake-water chemistry. The data show that the last 2,000 years have been characterized by frequent shifts between high and low salinity, suggesting shifts …

Dynamic Fluvial Systems And Gravel Progradation In The Himalayan Foreland, Nicholas Brozovic, Douglas W. Burbank

Daugherty Water for Food Global Institute: Faculty Publications

Although the large-scale stratigraphy of many terrestrial foreland basins is punctuated by major episodes of gravel progradation, the relationships of such facies to hinterland tectonism and climate change are often unclear. Structural reentrants provide windows into older and more proximal parts of the foreland than are usually exposed, and thus provide key insights to earlier phases of foreland evolution. Our magnetostratigraphic studies show that, although the major lithofacies preserved within the Himachal Pradesh structural reentrant in northwestern India resemble Neogene facies in Pakistan, they have a much greater temporal and spatial variability. From 11.5 to 7 Ma, major facies boundaries …

American Bittern Depredates Sora, Jane E. Austin, Michael V. Slivinski

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

The American bittern (Botaurus lentiginosus) is an opportunistic predator that forages on a wide variety of foods, primarily insects, amphibians, fishes, snakes, and small mammals (reviewed in Gibbs et al. 1992). To our knowledge, there are no published reports documenting American bittern depredation on birds. We report observations of an American bittern attempting to consume a sora (Porzana carolina).

Fish & Wildlife News: March/April 2000

Fish and Wildlife News

Contents:
Historic Sturgeon Discovery 2
The Future of Hatcheries 3
Achieving Harmony 6
How to Move a Moose 9
Tour the South with Teddy Roosevelt IV 11
Special Section: Past to Present 13
Applauding A Few Unsung Heroes 16
A Lacey Act Primer 19
Bird Conservation: The Next Generation 20
Living Proof the ESA Works 23
Fish and Wildlife...In Brief 31
A Banner Year for the Service Budget 32

Ecology (Re)Defined, Mary Rowland

United States Bureau of Land Management: Staff Publications

This slender, well-written volume is a compendium of terms, 60 altogether, purportedly intended to introduce the layperson to the discipline of ecology. With encyclopedic listings from "Air" to "Zoos," we learn that potential effects of global warming include the spread of malaria and other tropical diseases to previously uninfected areas, and that the world's six billion humans consume 40% of the planet's photosynthetic output. It is clear from the first entry that the book is as much an environmental primer as a science-based one. For example, we read under the topic "Air" that "We should not continue human activities that …

Condition Of Green Ash, Incidence Of Ash Yellows Phytoplasmas, And Their Association In The Great Plains And Rocky Mountain Regions Of North America, J. A. Walla, W. R. Jacobi, N. A. Tisserat, M. O. Harrell, J. J. Ball, G. B. Neil, D. A. Reynard, Y. H. Guo, L. Spiegel

Department of Plant Pathology: Faculty Publications

About 50% of 1,057 green ash (Fraxinus pennsylvanica) systematically sampled in the Great Plains and Rocky Mountain regions had substantial dieback (>10% of crown branches with dieback), and the average growth ring width during the last 20 years was 2.9 mm. The overall condition of the population was rated fair. Ash yellows phytoplasmas were identified at 102 of 106 sites throughout six U.S. states (North Dakota, South Dakota, Wyoming, Nebraska, Colorado, Kansas) and three Canadian provinces (Alberta, Saskatchewan, Manitoba). These phytoplasmas had not previously been known in Alberta, Saskatchewan, Manitoba, Wyoming, Colorado, or Kansas. Incidence of phytoplasmal …

Genetic Resistance To Experimental Infection With In Red Deer (Cervus Elaphus), Colin G. Mackintosh, Tariq Qureshi, Ken Waldrup, Robert E. Labes, Ken G. Dodds, J. Frank T. Griffin

Michigan Bovine Tuberculosis Bibliography and Database

Tuberculosis (Tb) caused by Mycobacterium bovis is a worldwide threat to livestock and humans. One control strategy is to breed livestock that are more resistant to Mycobacterium bovis. In a 3-year heritability study 6 farmed red deer stags were selected from 39 on the basis of their differing responses to experimental challenge via the tonsillar sac with approximately 500 CFU of M. bovis. Two stags remained uninfected, two were moderately affected, and two developed serious spreading Tb. Seventy offspring, bred from these six stags by artificial insemination using stored semen, were similarly challenged with M. bovis …

The Probe, Issue 209 – March/April 2000

The Probe: Newsletter of the National Animal Damage Control Association

Summary of NADCA Questionnaire Results
NADCA Discusses Future -- Bob Timm, PROBE Editor
Vern VerMass Receives Spalsbury Award
Las Vegas 2000 - One Man's View (The W.C.T. Seminary - February 2000) -- Erik W. Shaffer
Equipment Updates
Book Review: "Bird Management Field Guide: A Comprehensive Manual for Preventing and Resolving Pest Bird Problems" by Richard Kramer, Ph.D. (115pp, illustrated).
Woodstream Corp. Sold to Investment Group
Colorado Anti-Trap Measure Held Invalid
Moose, Motorcyclist Tangle
Eagle Bombards Car
Europe's Children Don't Know Wool from Cotton
Infected Cougar Shot in Oregon
Position Available: WILDLIFE BIOLOGIST - Bird Depredation Research, H. K. Dupree Stuttgart …

A Taxonomic Teview Of The Subtribe Pericalina (Coleoptera: Carabidae: Lebiini) In The Western Hemisphere, With Descriptions Of New Species And Notes About Classification And Zoogeography, Danny Shpeley, George E. Ball

Insecta Mundi

A taxonomic review of the lebiine subtribe Pericalina in the Western Hemisphere, this paper includes a treatment of the genus-groups, a key to the genera, keys to subgenera, species groups, and species of each polybasic genus, descriptions of new species and new subgenera, new locality records for previously described species, re-rankings, and new synonymy. In total, 111 species and subspecies are treated, 26 of which are described as new.

A review of the taxonomically useful mandibular structure, based on stereo-electron (SEM) photographs, requires changes in previously published names of various structures. A review of adhesive vestiture on the front tarsi …

Nebraska Bird Review (March 2000) 68(1), Whole Issue

Nebraska Bird Review

A Summer Survey of the Birds at Two Eastern Nebraska Wetlands ... 2

First Record of a Brambling for Nebraska ... 8

Winter Field Report, December 1999 to February 2000 ... 9

NOU Fall Field Days Count, 1999 ... 26

The 1999–2000 Nebraska Christmas Bird Count ... 30

Black-throated Gray Warbler at Oliver Reservoir ... 46

Gray Flycatcher at Oliver Reservoir ... 46

The Prairie Naturalist Volume 32, No.1 March 2000

The Prairie Naturalist

FRESHWATER MUSSELS (BIVALVIA: UNIONOIDEA) IN STREAMS OF NORTHWESTERN KANSAS ▪ S. M. Bergman, M. E. Eberle, and B. K. Obenneyer

PISCIVOROUS BIRD DEPREDATION AT NORTHERN MINNESOTA AQUACULTURE FACILITIES ▪ G. K. Bridgman, E. H. Rave, and J. M. Rafferty 17

EFFECTS OF MOWED TRAILS ON DEPREDATION OF ARTIFICIAL NESTS IN GRASSLAND ▪ D. J. Rosenblatt, J. J. Newton, and E . J. Heske

PLANT COMMUNITY PATTERNS ON UPLAND PRAIRIE IN THE EASTERN NEBRASKA SANDHILLS ▪ W. H. Schacht, J. D. Volesky, D. Bauer, A. J. Smart, and E. M. Mousel

AMERICAN BITTERN DEPREDATES SORA ▪ J. E. Austin, and M. …

Two New Species Of Botocudo From Trinidad, Tobago, And Grenada (Hemiptera: Rhyparochromidae: Antillocorini), Julieta Brambila

Insecta Mundi

Abstract: Botocudo trinidadensis is described and illustrated from the islands of Trinidad and Grenada and Botocudu fasciatus described and illustrated from Trinidad and Tobago.

Resumen: Se describen e ilustran Botocudo trinidadensis, de las islas de Trinidad y Granada, y Botocudu fasciatus, de Trinidad y Tobago.