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2017

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Articles 1411 - 1440 of 12806

Full-Text Articles in Life Sciences

Insecticide And Growth Regulator Effects On The Leafminer, Liriomyza Trifolii (Diptera: Agromyzidae), In Celery And Observations On Parasitism, E. Grafius, J. Hayden Nov 2017

Insecticide And Growth Regulator Effects On The Leafminer, Liriomyza Trifolii (Diptera: Agromyzidae), In Celery And Observations On Parasitism, E. Grafius, J. Hayden

The Great Lakes Entomologist

The effects of different insecticides were compared on survival and development of the leafminer, L. trifolii, in celery in Michigan and parasitism was assessed in this non- resident population. Avermectin, thiocyclam, and cyromazine effectively controlled L. trifolii larvae or prevented successful emergence as adults. Moderate to high levels of resistance to permethrin and chlorpyrifos were present. Avermectin caused high mortality of all larval stages and no adults successfully emerged. Thiocyclam caused high mortality to all larval stages, but did not affect adult emergence from the surviving larvae. Cyromazine acted most strongly against early stage larvae before visible mines were …

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Ectoparasites And Other Arthropod Associates Of Some Voles And Shrews From The Catskill Mountains Of New York, John O. Whitaker Jr., Thomas W. French Nov 2017

Ectoparasites And Other Arthropod Associates Of Some Voles And Shrews From The Catskill Mountains Of New York, John O. Whitaker Jr., Thomas W. French

The Great Lakes Entomologist

Reported here from the Catskill Mountains of New York are 30 ectoparasites and other associates from 39 smoky shrews, Sorex fumeus, 17 from 11 masked shrews, Sorex cinereus, 11 from eight long-tailed shrews, Sorex dispar, and 31 from 44 rock voles, Microtus chrotorrhinus.

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Ectoparasites And Other Arthropod Associates Of The Hairy-Tailed Mole, Parascalops Breweri, John O. Whitaker Jr, Thomas W. French Nov 2017

Ectoparasites And Other Arthropod Associates Of The Hairy-Tailed Mole, Parascalops Breweri, John O. Whitaker Jr, Thomas W. French

The Great Lakes Entomologist

A total of 33 taxa of ectoparasites and other associates was taken on seven individuals of the Hairy-tailed Mole, Parascalops breweri, from New York and New England. The most abundant form was the glycyphagid mite, Labidophorus nearcticus.

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Movement, Dispersion, And Orientation Of A Population Of The Colorado Potato Beetle, Leptinotarsa Decemlineata (Coleoptera: Chrysomelidae), In Eggplant, Charles E. Williams Nov 2017

Movement, Dispersion, And Orientation Of A Population Of The Colorado Potato Beetle, Leptinotarsa Decemlineata (Coleoptera: Chrysomelidae), In Eggplant, Charles E. Williams

The Great Lakes Entomologist

Short-term dispersal, dispersion, and orientation of a population of the Colorado potato beetle, Leptinotarsa decemlineata. were examined in a uniformly spaced planting of eggplant using a mark-recapture technique. Recaptures of marked beetles declined throughout the study, the greatest decline occurring 24 h after release. Dispersal of remaining beetles through the field was gradual; beetle numbers declined with distance from the release point during the first 3 days of the study and increased with distance thereafter. Beetles were highly aggregated for 3-4 days after release but were well dispersed for the remainder of the study. Dispersal of aggregated beetles may …

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Bibliographic Guide To The Terrestrial Arthropods Of Michigan: Supplement 1, Mark F. O'Brien Nov 2017

Bibliographic Guide To The Terrestrial Arthropods Of Michigan: Supplement 1, Mark F. O'Brien

The Great Lakes Entomologist

A list of publications dealing with faunistic studies, range extensions, systematics, and identification of the terrestrial arthropods of Michigan is presented, primarily for the period of 1983-1987. Correlation is also made between earlier entomological activities and resulting publications on the fauna of the state.

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Life History Of Mesovelia Mulsanti (Hemiptera: Mesoveliidae) In Southern Illinois, J. E. Mcpherson Nov 2017

Life History Of Mesovelia Mulsanti (Hemiptera: Mesoveliidae) In Southern Illinois, J. E. Mcpherson

The Great Lakes Entomologist

The life history of Mesovelia mulsanti was studied during 1983-1986. This species was apparently trivoltine with a partial 4th generation at the end of the year. It overwintered as eggs. First ins tars appeared in mid-April followed by marked overlapping of the subsequent instars and generations. The first adults appeared in early May. No active individuals were found after November.

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Revisionary Notes On Predaceous Heptageniidae Based On Larval And Adult Associations (Ephemeroptera), W. P. Mccafferty, A. V. Provonsha Nov 2017

Revisionary Notes On Predaceous Heptageniidae Based On Larval And Adult Associations (Ephemeroptera), W. P. Mccafferty, A. V. Provonsha

The Great Lakes Entomologist

New data indicate that larvae previously described as Spinadis Edmunds and Jensen and Spinadis wallacei Edmunds and Jensen are the larval stage of the prior named adults of Anepeorus simplex (Walsh) and are therefore synonymized. It is highly probable that larvae described as Acanthomola pubescens Whiting and Lehmkuhl represent the larval stage of Anepeorus rusticus McDunnough, but they remain to be reared. Anepeorus sensu novum and Pseudiron are placed in the subfamily Anepeorinae, and Raptoheptagenia (= recently associated Heptagenia cruentata Walsh adults and larvae previously thought to be Anepeorus) is placed in the subfamily Heptageniinae.

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Seasonal Correction Factors For The Biotic Index, William L. Hilsenhoff Nov 2017

Seasonal Correction Factors For The Biotic Index, William L. Hilsenhoff

The Great Lakes Entomologist

For evaluation of streams with the biotic index (BI), samples of arthropods should be collected in the spring before degree day accumulations of mean air temperatures above 4.5°C reach 440° in warm-water streams, and before they reach 1050° in cold-water streams that remain below 20°e. Sampling in the fall may be resumed 60 days after the 440 degree day accumulation in warm-water streams and 45 days after the 1050 degree day accumulation in cold-water streams. Stream temperature had no effect on the BI, except as it affected seasonal differences. Current had less effect on the BI than anticipated, but currents …

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Observations Of The Gallery Habits Of Trypodendron Retusum (Coleoptera: Scolytidae) Infesting Aspen In Central Michigan, Steven D. Brewer, Robert A. Beck, Richard A. Roeper Nov 2017

Observations Of The Gallery Habits Of Trypodendron Retusum (Coleoptera: Scolytidae) Infesting Aspen In Central Michigan, Steven D. Brewer, Robert A. Beck, Richard A. Roeper

The Great Lakes Entomologist

A monogamous pair of adult Trypodendron retusum construct a gallery system consisting of an entrance tunnel and from two to five lateral tunnels into the sapwood of aspen. Inoculation of the mutualistic fungus Ambrosiella ferruginea by the female beetle, was followed by oviposition in shallow egg cradles. Two instars were observed as the larvae enlarged their cradles. The number of cradles per gallery system was correlated to the length of the gallery system. Progeny adults with a sex ratio of approximately 1:1 emerged from late June to early August to overwinter in the litter.

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Review Of Adaptations Of Velvet Ants (Hymenoptera: Mutillidae), Mark Deyrup Nov 2017

Review Of Adaptations Of Velvet Ants (Hymenoptera: Mutillidae), Mark Deyrup

The Great Lakes Entomologist

Mutillid wasps are active and conspicuous insects, but their interactions with each other and with other animals are seldom observed. Mostly indirect evidence is used to postulate that an array of traits represents adaptations to exploit ground-nesting, aggressive, often highly dispersed hosts. The massive exoskeleton protects the parasitoid invading nests of biting and stinging hosts; certain unrelated parasitoids attacking the same hosts are similarly armored. Female aptery occurs in mutillids and in many other wasps attacking soil-dwelling hosts. In at least two mutillid lineages, female aptery apparently led to phoretic copulation, which led in turn to selection for large size …

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Volume 2, Chapter 16-5: Bird Nests - Non-Passeriformes, Part 2, Janice M. Glime Nov 2017

Volume 2, Chapter 16-5: Bird Nests - Non-Passeriformes, Part 2, Janice M. Glime

Bryophyte Ecology Subchapters

No abstract provided.

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Volume 2, Chapter 16-4: Bird Nests - Non-Passeriformes, Part 1, Janice M. Glime Nov 2017

Volume 2, Chapter 16-4: Bird Nests - Non-Passeriformes, Part 1, Janice M. Glime

Bryophyte Ecology Subchapters

No abstract provided.

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Volume 2, Chapter 16-6: Bird Nests - Passeriformes, Part 1, Janice M. Glime Nov 2017

Volume 2, Chapter 16-6: Bird Nests - Passeriformes, Part 1, Janice M. Glime

Bryophyte Ecology Subchapters

No abstract provided.

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Volume 2, Chapter 16-7: Bird Nests - Passeriformes, Part 2, Janice M. Glime Nov 2017

Volume 2, Chapter 16-7: Bird Nests - Passeriformes, Part 2, Janice M. Glime

Bryophyte Ecology Subchapters

No abstract provided.

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P2x2 Dominant Deafness Mutations Have No Negative Effect On Wild-Type Isoform: Implications For Functional Rescue And In Deafness Mechanism, Yan Zhu, Juline Beudez, Ning Yu, Thomas Grutter, Hong-Bo Zhao Nov 2017

P2x2 Dominant Deafness Mutations Have No Negative Effect On Wild-Type Isoform: Implications For Functional Rescue And In Deafness Mechanism, Yan Zhu, Juline Beudez, Ning Yu, Thomas Grutter, Hong-Bo Zhao

Otolaryngology--Head & Neck Surgery Faculty Publications

The P2X2 receptor is an ATP-gated ion channel, assembled by three subunits. Recently, it has been found that heterozygous mutations of P2X2 V60L and G353R can cause autosomal dominant nonsyndromic hearing loss. However, the underlying mechanism remains unclear. The fact that heterozygous mutations cause deafness suggests that the mutations may have dominant-negative effect (DNE) on wild-type (WT) P2X2 isoforms and/or other partners leading to hearing loss. In this study, the effect of these dominant deafness P2X2 mutations on WT P2X2 was investigated. We found that sole transfection of both V60L and G353R deafness mutants could efficiently target to the plasma …

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Complete Bacterial Symbiont Genome Sequences From Anglerfish Cryptopsaras Couesii And Melanocetus Johnsonii, Lindsay L. Freed, Dana Fadera, Dante Fenolio, Tracey Sutton, Jose V. Lopez Nov 2017

Complete Bacterial Symbiont Genome Sequences From Anglerfish Cryptopsaras Couesii And Melanocetus Johnsonii, Lindsay L. Freed, Dana Fadera, Dante Fenolio, Tracey Sutton, Jose V. Lopez

DEEPEND Datasets

These are the complete bacterial symbiont genome sequences from anglerfish Cryptopsaras couesii (individual CC26) and one individual Melanocetus johnsonii. These data were generated and analyzed by the laboratory of Dr Tory Hendry (Cornell University). The full sequences of two symbiotic bacterial genomes have been submitted to public DDBJ/ENA/GenBank repositories under the accessions CP020660- CP020663 (CC26 Cryptopsaras couesii) and NBYY01000001-NBYY01000039 (Melanocetus johnsonii). The total genome size for each of the symbiont species is about 2-2.6 Mb.

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Chance, Nancy Fowler (Fa 1110), Manuscripts & Folklife Archives Nov 2017

Chance, Nancy Fowler (Fa 1110), Manuscripts & Folklife Archives

FA Finding Aids

Finding aid only for Folklife Archives Project 1110. Student folk studies project titled: “Butter making” which includes survey sheets with descriptions of the traditional butter making process in Allen County and Warren County, Kentucky. Sheets may include a brief description of pictured equipment, traditional practice, belief and motif index number.

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Characterization Of Aspergillus Flavus Soil And Corn Kernel Populations From Eight Mississippi River States, Jorge A. Reyes Pineda Nov 2017

Characterization Of Aspergillus Flavus Soil And Corn Kernel Populations From Eight Mississippi River States, Jorge A. Reyes Pineda

LSU Master's Theses

Aspergillus flavus is a saprophytic ascomycete that can also actively invade the seed of crops and potentially contaminate them with harmful aflatoxins. Management of A. flavus currently relies mostly on biocontrol. However, there is still a lot to learn about its biology and ecology so the current approach can be improved. An A. flavus population survey was undertaken during the fall of 2014 across eight Mississippi River states to determine population diversity and geographic distribution of VCGs. Isolates from corn and soil were also characterized for VCG, sclerotial morphotype, mating type, cyclopiazonic acid, and aflatoxin production in order to determine …

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Bacterial Siderophore Production In Lechuguilla And Spider Caves, Carlsbad National Park (Ccnp) Carlsbad, New Mexico, Tammi R. Duncan Nov 2017

Bacterial Siderophore Production In Lechuguilla And Spider Caves, Carlsbad National Park (Ccnp) Carlsbad, New Mexico, Tammi R. Duncan

Biology ETDs

Lechuguilla and Spider caves, Carlsbad Caverns National Park, contain a rich microbial diversity. Despite oligotrophic conditions, the microorganisms in these caves have developed strategies to acquire essential nutrients. I hypothesized that cave bacteria use siderophores, a ferric iron chelating compound, to acquire iron for essential life processes. To understand the backdrop against which the cave bacteria would produce siderophores, I examined the bacterial physiological characteristics, determined whether cave bacteria have an ability to produce siderophores, and investigated a possible correlation between iron and manganese concentrations in cave deposits and siderophore production by bacteria cultured from the same site. I carried …

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Incorporation Of Biorationals And Trap Crop For Stink Bug Management In Soybeans, Kukuh Hernowo Nov 2017

Incorporation Of Biorationals And Trap Crop For Stink Bug Management In Soybeans, Kukuh Hernowo

LSU Doctoral Dissertations

Stink bugs are one of the most important seed sucking pests impacting soybean production in Louisiana. Exploration of chemicals that exhibit attraction or repellent activities toward this major pest would be beneficial to develop a push-pull strategy against this pest complex. Spinosad and neem are two commercially available natural insecticides that were claimed to have attractant and repellent activities against stink bugs. To test the potential of these chemicals, a series of experiments was conducted to investigate the olfactory, tactile, feeding, and oviposition preference of stink bugs toward different commercial spinosad products and neem. Additionally, two years of field experiments …

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Energy Neutral: The Human Foot And Ankle Subsections Combine To Produce Near Zero Net Mechanical Work During Walking, Kota Z. Takahashi, Kate Worster, Dustin A. Bruening Nov 2017

Energy Neutral: The Human Foot And Ankle Subsections Combine To Produce Near Zero Net Mechanical Work During Walking, Kota Z. Takahashi, Kate Worster, Dustin A. Bruening

Journal Articles

The human foot and ankle system is equipped with structures that can produce mechanical work through elastic (e.g., Achilles tendon, plantar fascia) or viscoelastic (e.g., heel pad) mechanisms, or by active muscle contractions. Yet, quantifying the work distribution among various subsections of the foot and ankle can be difficult, in large part due to a lack of objective methods for partitioning the forces acting underneath the stance foot. In this study, we deconstructed the mechanical work production during barefoot walking in a segment-by-segment manner (hallux, forefoot, hindfoot, and shank). This was accomplished by isolating the forces acting within each foot …

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Ncer Assistance Agreement Annual Progress Report For Grant #83582401 - Assessment Of Stormwater Harvesting Via Manage Aquifer Recharge (Mar) To Develop New Water Supplies In The Arid West: The Salt Lake Valley Example, Ryan Dupont, Joan E. Mclean, Richard C. Peralta, Sarah E. Null, Douglas B. Jackson-Smith Nov 2017

Ncer Assistance Agreement Annual Progress Report For Grant #83582401 - Assessment Of Stormwater Harvesting Via Manage Aquifer Recharge (Mar) To Develop New Water Supplies In The Arid West: The Salt Lake Valley Example, Ryan Dupont, Joan E. Mclean, Richard C. Peralta, Sarah E. Null, Douglas B. Jackson-Smith

Civil and Environmental Engineering Faculty Publications

The aims of the original proposed project remain the same, that is, to test the hypothesis that Managed Aquifer Recharge (MAR) for stormwater harvesting is a technically feasible, socially and environmentally acceptable, economically viable, and legally feasible option for developing new water supplies for arid Western urban ecosystems experiencing increasing population, and climate change pressures on existing water resources. The project is being carried out via three distinct but integrated components that include: 1) Monitoring of existing distributed MAR harvesting schemes involving a growing number of demonstration Green Infrastructure (GI) test sites; 2) Integrated stormwater/vadose zone/groundwater/ ecosystem services modeling; and …

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Effects Of Soil Silicon Amendment And Nitrogen Levels On Rice Insect Pest Complex, James Michael P. Villegas Nov 2017

Effects Of Soil Silicon Amendment And Nitrogen Levels On Rice Insect Pest Complex, James Michael P. Villegas

LSU Master's Theses

Rice plants are consistently subjected to various pressures by insect pests throughout the growing season. The main insect pest complex reported in Louisiana are the rice water weevil (major early-season insect pest), fall armyworm (sporadic early-season pest), sugarcane borer and rice stalk borer (long- established but sporadic stem boring pests), Mexican rice borer (an invasive stem-boring pest), and rice stink bug (major late-season pest). Soil silicon amendment has been shown to enhance plant resistance against herbivorous pests. Rice is a typical silicon-accumulating graminaceous crop. Field and greenhouse experiments were conducted from 2015 to 2017 to investigate the effects of soil …

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The Impact Of Co2-Related Ocean Acidification On The Molecular Regulation Of Shell Development In The Eastern Oyster (Crassostrea Virginica)., Mackenzie L. Richards Nov 2017

The Impact Of Co2-Related Ocean Acidification On The Molecular Regulation Of Shell Development In The Eastern Oyster (Crassostrea Virginica)., Mackenzie L. Richards

LSU Master's Theses

Eastern oysters (Crassostrea virginica), native to the Gulf of Mexico, are keystone species in estuarine ecosystems and are economically valued. Current research indicates that ocean acidification adversely affects the physiology and morphology of larval oysters, but the molecular mechanisms of this impact remain unstudied. Ocean acidification is contributed to by elevated atmospheric CO2 due to increased anthropogenic activities, causing heightened partial pressure of CO2 (pCO2), and eutrophication from land-based runoff in the Gulf. The objective of this work was to determine the genomic response of the eastern oyster in Louisiana to simulated ocean acidification. …

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Volume 2, Chapter 16-3: Bird Nests, Janice M. Glime Nov 2017

Volume 2, Chapter 16-3: Bird Nests, Janice M. Glime

Bryophyte Ecology Subchapters

No abstract provided.

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Policy Recommendation From Stakeholders To Improve Forest Products Transportation: A Qualitative Study, Anil Koirala, Anil Kizha, Sandra De Urioste-Stone Nov 2017

Policy Recommendation From Stakeholders To Improve Forest Products Transportation: A Qualitative Study, Anil Koirala, Anil Kizha, Sandra De Urioste-Stone

Forest Resources Faculty Scholarship

With recently announced federal funding and subsidies to redevelop vacant mills and the communities they were in, the forest products industry in Maine is poised to gain its momentum once again. One of the important components influencing the cost of delivered forest products is transportation. A recent study in the region has shown that the location and availability of markets along with lack of skilled labor force are the major challenges faced by the forest products transportation sector in Maine. This study was focused on developing a management guideline which included various field level options for improving trucking enterprises in …

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Smokejumper Obituary: Mackinnon, John William "Mike" (Missoula 1957), National Smokejumper Association Nov 2017

Smokejumper Obituary: Mackinnon, John William "Mike" (Missoula 1957), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.

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Salinity Tolerance Of Three Competing Rangeland Plant Species: Studies In Hydroponic Culture, Joseph K. Sagers, Blair L. Waldrom, Joseph Earl Creech, Ivan W. Mott, Bruce Bugbee Nov 2017

Salinity Tolerance Of Three Competing Rangeland Plant Species: Studies In Hydroponic Culture, Joseph K. Sagers, Blair L. Waldrom, Joseph Earl Creech, Ivan W. Mott, Bruce Bugbee

Plants, Soils, and Climate Faculty Publications

Halogeton (Halogeton glomeratus) is an invasive species that displaces Gardner's saltbush (Atriplex gardneri) on saline rangelands, whereas, forage kochia (Bassia prostrata) potentially can rehabilitate these ecosystems. Salinity tolerance has been hypothesized as the predominant factor affecting frequency of these species. This study compared relative salinity tolerance of these species, and tall wheatgrass (Thinopyrum ponticum) and alfalfa (Medicago sativa). Plants were evaluated in hydroponics, eliminating the confounding effects of drought, for 28 days at 0, 150, 200, 300, 400, 600, and 800 mmol/L NaCl. Survival, growth, and ion accumulation were determined. …

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New Approach Of Highly Efficient Fermentation Process For Bio Ethanol Using Xylose As Agricultur E Residues, Ahmed Abu Saleh, Watanabe Seiya, Hamdan Sinin, Kodaki Tsutomu, Makino Keisuke Nov 2017

New Approach Of Highly Efficient Fermentation Process For Bio Ethanol Using Xylose As Agricultur E Residues, Ahmed Abu Saleh, Watanabe Seiya, Hamdan Sinin, Kodaki Tsutomu, Makino Keisuke

ASEAN Journal on Science and Technology for Development

Agricultural waste biomasshas already been transferred to bioethanol and used as energy related products, although many issues such as efficiency and productivity still exist to be overcome. In this study, the protein engineering was applied to generate enzymes with completely reversed coenzyme specificity and developed recombinant yeasts containing those engineered enzymes for construction of an efficient biomass-ethanol conversion system. Recombinant yeasts were constructed with the genes encoding a wild type xylose reductase (XR)and the protein engineered xylitol dehydrogenase (XDH)(with NADP) of Pichiastipitis. These recombinant yeasts were characterized based on the enzyme activity and fermentation ability of xylose to ethanol. The …

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S Tudies On The Phase Transitions And Properties Of Tungsten (Vi) Oxide Nanoparticles By X - Ray Diffraction (Xrd) And Thermal Analysis, Abdullah S.F., Radiman S., Abdul Hamid M.A., Ibrahim N.B. Nov 2017

S Tudies On The Phase Transitions And Properties Of Tungsten (Vi) Oxide Nanoparticles By X - Ray Diffraction (Xrd) And Thermal Analysis, Abdullah S.F., Radiman S., Abdul Hamid M.A., Ibrahim N.B.

ASEAN Journal on Science and Technology for Development

Tungsten (VI) oxide, WO3nanoparticles were synthesized by colloidal gas aphrons(CGAs) technique.The resultant WO3nanoparticleswere characterized by thermogravimetric-differential thermal analysis (TG-DTA) and X-Ray diffraction (XRD) measurements in order to determine the phase transitions, the crystallinity and the size of theWO3nanoparticles. As a comparison, transmission electron microscope (TEM) was used to investigate the size of the WO3nanoparticles. The result from XRD and DTA show that the formation of polymorphsWO3nanoparticles have the following sequence: orthorhombic (b-WO3)®monoclinic (g-WO3) ®triclinic (d-WO3) ®monoclinic (e-WO3) with respect to the calcination temperature of 400, 500, 600 and 700°C. No diffraction peaks were found in the X-Ray diffraction measurements for …

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