Life Sciences Commons^™

Redescripción De La Morfología Larval Externa De Dos Especies Del Grupo De Leptodactylus Fuscus (Anura, Leptodactylidae), José A. Langone, Rafael O. De Sá

Biology Faculty Publications

Re-description of the larval external morphology of two species of the Leptodactylus fuscus group (Anura, Leptodactylidae). The larvae of Leptodactylus gracilis (D’Orbigny y Bibron, 1840) and L. mystacinus Bumeister, 1861 are re-described and compared with previous descriptions noting intraspecific variation in oral disc characteristics (arrangement of papillae and rows of cornified teeth). The external morphological analysis of larvae of the Leptodactylus fuscus group suggest that the lack of comparable descriptions among species, as well as the lack of analyses of their intraspecific variation, limits the use of larval characteristics for diagnostic purposes.

A Phylogenetic Analysis Of Vanzolinius Heyer, 1974 (Amphibia, Anura, Leptodactylidae): Taxonomic And Life History Implications, Rafael O. De Sá, W. Ronald Heyer, Arley Camargo

Biology Faculty Publications

The validity of the monotypic leptodactylid frog genus Vanzolinius Heyer, 1974 has been questioned recently. We explore the relationship of Vanzolinius discodactylus within the cluster of closely related genera Adenomera, Leptodacylus, and Lithodytes with both morphological and molecular data sets. Morphological and combined morphological and molecular data were analyzed using maximum parsimony; molecular data sets were analyzed with maximum likelihood methods. The resultant relationships are unambiguous in Vanzolinius being imbedded within Leptodactylus. In order to maintain Leptodactylus as a monophyletic genus, Vanzolinius is placed in the synonymy of Leptodactylus Fitzinger, 1826. The implications of relationships analyzed in …

Unlv Magazine, Erin O'Donnell, Gillian Silver, Lori Bachand, Regina Barcolas, Tony Allen, Gian Galassi, Suzan Dibella, Diane Russell, Doug Mcinnis, Cate Weeks, Jennifer Robison, Holly Ivy De Vore

UNLV Magazine

No abstract provided.

Correlates Of Soy Food Consumption In Women At Increased Risk For Breast Cancer, Carolyn Y. Fang, Marilyn Tseng, Mary B. Daly

Kinesiology and Public Health

Objectives The objectives of the present study were to examine sociodemographic correlates of soy food consumption among women at increased risk of breast cancer, describe factors influencing soy food consumption or nonconsumption, and identify women’s sources of information about soy foods. Design A cross-sectional, self-report survey was used to assess frequency of and factors influencing soy food consumption. Soy food intake was reported for the past year. Subjects/setting Participants were 452 women with family histories of breast cancer who were enrolled in a cancer risk assessment program. Statistical analyses performed Comparisons between consumers and nonconsumers of soy foods were performed …

Obesity In Women, Suzanne Phelan, Rena R. Wing

Kinesiology and Public Health

No abstract provided.

Louisiana Agriculture Fall, 2005, Lsu Agcenter

Louisiana Agriculture

No abstract provided.

Comparing The Gut Flora Of Irish Breastfed And Formula-Fed Neonates Aged Between Birth And 6 Weeks Old, Gordon Cooke, John Behan, Nicola Clarke, Winifred Gorman, Mary Costello

Articles

The exact composition of the complex microsystem that constitutes the gut flora continues to be explored as molecular methodology supplements traditional microbiological studies. The current study reports a random analysis of the faecal flora composition for 31 neonates in the 0–1 day age group, 41 neonates aged 2–5 days and 33 6-week-old neonates. All infants, born at the National Maternity Hospital, Ireland, were considered healthy, full-term normal deliveries and were either exclusively breastfed or formula-fed from birth. Microbiological and biochemical analyses of the faecal samples were used to specifically enumerate Lactobacillus spp., Bifidobacterium spp., Enterococcus spp., Staphylococcus spp., Bacteroides spp., …

Keeping Your Brain In Top Shape, Winston J. Craig

Lake Union Herald

No abstract provided.

Fall 2005, Nsu Oceanographic Center

Currents

No abstract provided.

American Society Of Parasitologists Newsletter, V. 27, No. 3, Autumn 2005, 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.

Nebline, October 2005

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Students Prepare for Careers at UNL College of Ag and Natural Resources
CASNR’s “Ensuring Your Future Guarantee”
Check Out UNL and CASNR
Drying Gourds
Deep Watering Trees in Fall can Prevent Winter Drying Injury
Gladiola Fall Care
Storing Vegetables
Farmer Question: How Can I Reduce Energy Costs When Drying Grain?
Avoid Pasture Damage During Fall Grazing
Food Safety 101: USDA Offers Tips for College Students
One-Dish Rosemary Chicken and White Beans Recipe
Healthy Desserts Presentation, Nov. 15
Breakfast Power
How Healthy is Your Home? Be Aware of Indoor Air Pollutants
President’s Notes — Janet’s Jargon
FCE News & Events
Household …

Maximum Size Of Fish Caught With Standard Gears And Recreational Angling, Kevin L. Pope, Gene R. Wilde, Daryl L. Bauer

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

We correlated maximum lengths of freshwater fishes captured during 10 years with standard gears (i.e., gill nets, boat electrofishers and trap nets) and angling from Nebraska water bodies to determine which methodology provided better estimates of maximum size of fishes produced within a given water body. In general, maximum length of fishes captured with standard gears was smaller than maximum length of fishes captured with angling. Although significant (based on sequential Bonferroni adjustment) correlation was found in only one of nine sport fishes assessed, all correlations were positive indicating a general trend between maximum size of fishes captured with these …

Alaska Reflections, Volume 17, Number 2 - Fall 2005

United States Fish and Wildlife Service: Publications

Table of Contents:
Reflecting
Outreach News
Dead Thing Duty
It Ain’t Easy
A Slowed Burn
Fish Schticks

The Theory Of Planned Behavior: Predicting Physical Activity And Cardiorespiratory Fitness In African American Children, Jeffrey J. Martin, Pamela Hodges Kulinna, Nate Mccaughtry, Donetta Cothran, Joe Dake, Gail Frances Fahoome

Kinesiology, Health and Sport Studies

The purpose of our study was to evaluate the ability of the Theory of Planned Behavior (TPB) to predict African American children’s moderate to vigorous physical activity (MVPA) and cardiorespiratory fitness. Children (N = 548, ages 9–12) completed questionnaires assessing the TPB constructs and MVPA and then had their cardiorespiratory fitness assessed with the Progressive Aerobic Cardiovascular Endurance Run (PACER) test. Commonly used Structural Equation Modeling fit indices suggested the model was an adequate representation for the relationships within the data. However, results also suggested an extended model which was examined and supported. Tests of direct paths from subjective …

Summaries Of Arkansas Cotton Research 2004, Derrick M. Oosterhuis

Arkansas Agricultural Experiment Station Research Series

No abstract provided.

Duchesne County Agriculture Profile, Utah State University Extension

All Current Publications

No abstract provided.

Prospects Of Kenaf As An Alternative Field Crop In Virginia, Harbans L. Bhardwaj, Charles L. Webber Iii

Virginia Journal of Science

Kenaf (Hibiscus cannabinus L.), a warm-season annual plant, has shown potential as an alternate source of fiber in the United States. Although preliminary research has indicated feasibility of kenaf production in Virginia, production details are lacking. Field experiments were conducted during 1995 and 1996 to determine optimal row spacing and fertilizer needs, and to compare available kenaf cultivars. Although results indicated that differences in dry matter yields from four row spacings (30, 60, 90, and 120 cm) and four rates each of N, P, and K fertilizers (50, 100, 150, and 200 kg ha^-1) were not …

Linking Demographic Effects Of Habitat Fragmentation Across Landscapes To Continental Source-Sink Dynamics, P. Lloyd, Thomas E. Martin, R. L. Redmond, U. Langner, M. M. Hart

Wildlife Biology Faculty Publications

Forest fragmentation may cause increased brood parasitism and nest predation of breeding birds. In North America, nest parasitism and predation are expected to increase closer to forest edges because the brood-parasitic Brown-headed Cowbird(Molothrus ater) and generalist nest predators often enter the forest from adjoining developed (largely agricultural) habitats. Yet the abundance of brood parasites and nest predators at the patch scale may be strongly constrained by the total area of developed habitat at landscape scales. The scale and extent of landscape effects are unclear, however, because past studies were mostly conducted within local landscapes rather than across independent landscapes. We …

Vulnerability Of Northern Prairie Wetlands To Climate Change, Carter W. Johnson, B. V. Millett, T. Gilmanov, G. R. Guntenspergen, David E. Naugle

Wildlife Biology Faculty Publications

The prairie pothole region (PPR) lies in the heart of North America and contains millions of glacially formed, depressional wetlands embedded in a landscape matrix of natural grassland and agriculture. These wetlands provide valuable ecosystem services and produce 50% to 80% of the continent's ducks. We explored the broad spatial and temporal patterns across the PPR between climate and wetland water levels and vegetation by applying a wetland simulation model (WETSIM) to 18 stations with 95-year weather records. Simulations suggest that the most productive habitat for breeding waterfowl would shift under a drier climate from the center of the PPR …

Changes In Bird Abundance After Wildfire: Importance Of Fire Severity And Time Since Fire, Kristina M. Smucker, Richard L. Hutto, Brian M. Steele

Biological Sciences Faculty Publications

Fire can cause profound changes in the composition and abundance of plant and animal species, but logistics, unpredictability of weather, and inherent danger make it nearly impossible to study high-severity fire effects experimentally. We took advantage of a unique opportunity to use a before–after/control–impact (BACI) approach to analyze changes in bird assemblages after the severe fires of 2000 in the Bitterroot Valley, Montana. Observers surveyed birds using 10-minute point counts and collected vegetation data from 13 burned and 13 unburned transects for five years before fire and three years after fire. We compared changes in vegetation variables and relative bird …

Coral Reef Ed-Ventures: An Environmental Education Program For School Children In San Pedro, Belize, H. Allen Curran, Susan Etheredge, Elizabeth Callaghan, Paulette M. Peckol

Geosciences: Faculty Publications

No abstract provided.

Fish Consumption Patterns Of Populations In Vicinities Of Lake Kastoria And Lake Pamvotis, Greece, Eugene G. Maurakis, David V. Grimes, Dimitra Bobori

Virginia Journal of Science

Objectives are to establish fish consumption patterns of populations in vicinities of two lakes (Kastoria and Pamvotis) in Greece for use in the assessment of risks associated with consumption of fishes in these agri-chemically impaired lakes. Parameters measured were demographics (i.e., gender, age, weight, education level, occupation, residency), freshwater fish eating frequency, species and sizes of fishes consumed, and fish consumption habits [i.e., quantity, parts, and preparation method). All annual mean site-specific consumption rates of the four gender-age class sub-populations surveyed in vicinity of Lake Kastoria (avg. range= 0.103-0.29 kg/day) exceed those of Greece (0.066 kg/day), EU (0.068 kg/day), Spain …

Ordering Genetic Algorithm Genomes With Reconstructability Analysis: Discrete Models, Stephen Shervais, Martin Zwick

Complex Systems Faculty Publications and Presentations

The building block hypothesis implies that genetic algorithm effectiveness is influenced by the relative location of epistatic genes on the chromosome. We demonstrate this with a discrete-valued problem, based on Kauffman’s NK model, and show that information-theoretic reconstructability analysis can be used to decide on optimal gene ordering.

The Survival Of The Central American Squirrel Monkey (Saimiri Oerstedi): The Habitat And Behavior Of A Troop On The Burica Peninsula In A Conservation Context, Liana Burghardt

Independent Study Project (ISP) Collection

The conservation status of Central American Squirrel monkeys (Saimiri oerstedi) on the far southern coast of Peninsula Burica in Panama was assessed over the course of a 13 day study period. Four troops of squirrel monkeys (67 individuals) were located on the southern coast of Peninsula Burica. Using information from local sources it can be estimated that up to 7 troops (157 individuals) live in the 7-8 km2 study site. These troops are sharing an estimated 80 ha of habitat which compared to past studies is a fairly low amount of habitat.

One troop of squirrel monkeys which is fed …

Natural And Synthetic Viniferins Associated With The Grapevine Disease Young Vine Decline, David Michael Mcginnis

Chemistry & Biochemistry Theses & Dissertations

Grapevine disease has been thc subject of intense research amongst viticulturists over the last few decades, especially during the 1990's. There has been discoveries that suggest grapevine disease is commonly caused by fungal pathogens. One of the most common fungi that the vine may become infected by is known as Botrytis cinerea. B. cinerea is capable of attacking the grapevine which in turn will lead to bunch rot in the grape clusters. This disease has been researched in great detail during the past several years and is one of only few microorganisms that have actually been identified. Phaeoacremrmium chnlmydospnrum …

Chromosomal Localization Of The Islet Neogenesis Associated Protein (Ingap) Gene In Syrian Hamster By Tyramide Signal Amplification-Fluorescence In Situ Hybridization (Tsa-Fish), Sallie A. Smith

Biological Sciences Theses & Dissertations

Diabetes mellitus is a group of conditions characterized by hyperglycemia due to an inability to produce or properly utilize insulin. The majority of cases fall into two categories, Type I and Type 2. Type I results from the autoimmune destruction of pancreatic β-cells of the islets. The beta cells are the exclusive source of insulin and the patient becomes entirely dependent on exogenous insulin to survive. Patients with Type 2 are distinguished by insulin resistance, a condition that develops due to the inability of the body to effectively use the insulin being produced. The β-cells gradually lose their ability to …

Resistant Turfgrasses For Improved Chinch Bug Management, Tiffany Heng-Moss, Frederick P. Baxendale, Robert C. Shearman, Thomas E. Eickhoff

Department of Entomology: Faculty Publications

Researchers at the University of Nebraska evaluated selected cool- and warm-season turfgrasses for resistance to chinch bugs in the Blissus complex, and documented the presence of multiple chinch bug resistance in these turfgrasses.

Greenhouse and field screening studies were initiated to search for cool- and warm-season turfgrasses with resistance to chinch bugs in the Blissus complex. Several warmseason turfgrasses (buffalograss, zoysiagrass, and bermudagrass) with resistance to the western chinch bug have been identified.

Studies are currently underway to investigate the biochemical and physiological mechanisms underlying resistant turfgrasses. This information is fundamentally important for formulating plant breeding strategies, and subsequently developing …

A Multi-Forest Comparison Of Dietary Preferences And Seed Dispersal By Ateles Spp., Sabrina E. Russo, Christina J. Campbell, J. Lawrence Dew, Pablo R. Stevenson, Scott A. Suarez

School of Biological Sciences: Faculty Publications

Investigations of coevolutionary relationships between plants and the animals that disperse their seeds suggest that disperser-plant interactions are likely shaped by diffuse, rather than species-to-species, coevolution. We studied the role of dietary plasticity in shaping the potential for diffuse coevolution by comparing dietary fruit preferences and seed dispersal by 3 species of spider monkeys (Ateles spp.) in 4 moist forests in Colombia, Ecuador, Panama, and Surinam. In all forests, spider monkeys were highly frugivorous and preyed upon seeds of few species. We estimated dietary use of fruiting taxa based on absolute consumption and preference, which accounts for resource availability. …

The Symmetry Of Longevity, Lawrence G. Harshman, Hans-Georg Müller, Xueli Liu, Yue Wang, James R. Carey

Lawrence G. Harshman Publications

We tested the hypothesis that relatively symmetrical flies live longer. Vein measurements on the left and right wings from the same individual were used to characterize bilateral symmetry in relationship to age-specific survival in defined cohorts. A longitudinal cohort study supported the hypothesis of a correlation between bilateral symmetry and longevity. For another type of experiment, wings were removed from females and males at approximately the beginning of adult life. Thus, there would be no effect of wings per se on adult survival. These wings were measured to characterize bilateral asymmetry, and the day of death of each dewinged individual …

Three Rarely Reported Digeneans Inhabiting Amphibians From Vancouver Island, British Columbia, Canada, David Zamparo, Daniel R. Brooks

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Three rarely reported species of digeneans were collected in amphibian hosts from Diversion Reservoir, Sooke, Vancouver Island, British Columbia, Canada, The endangered anuran Rana aurora hosted Glypthelmins californiensis, Gorgoderina multilobata, and Megalodiscus microphagus. In addition, the anuran Pseudacris regilia and the caudatan Taricha granulosa hosted Megalodiscus microphagus. Gorgoderina multilobata has been reported only once since 1936 and has never been reported outside of California. We note several characters not previously reported for Gorgoderina multilobata and G. aurora.