Digital Commons Network^™

A Land Use Puzzle: Piecing Together How Forests, Croplands, And Residential Neighborhoods Interact With Climate, Alexandra R. Contosta

All Materials

No abstract provided.

Prof, Jeff Bolster

UNH Today Archive

No abstract provided.

Bluebloods, Katharine Webster

UNH Today Archive

No abstract provided.

Fairchild Dairy Center Receives 2013 Quality Milk Award From Dairy One, Lori Tyler Gula

UNH Today Archive

No abstract provided.

Great Bay Nitrogen Non-Point Source Study, Philip Trowbridge, Matthew A. Wood, Thomas S. Burack, Vicki V. Quiram, Eugene J. Forbes

PREP Reports & Publications

The Great Bay Estuary is 21 square miles of tidal waters located in southeastern New Hampshire. It is one of 28 “estuaries of national significance” established under the Environmental Protection Agency’s National Estuary Program. The estuary is experiencing the signs of eutrophication, specifically, low dissolved oxygen, macroalgae blooms, and declining eelgrass habitat (DES, 2012).

Sixty-eight percent of the nitrogen that ends up in the Great Bay Estuary originates from sources spread across the watershed; the remainder derives from direct discharges of municipal wastewater treatment facilities (DES, 2010; PREP, 2013). In this report, these sources of nitrogen are called non-point sources …

Sources Of Uncertainty In Estimating Stream Solute Export From Headwater Catchments At Three Sites, Ruth D. Yanai, Naoko Tokuchi, John L. Campbell, Mark B. Green, Eiji Matsuzaki, Stephanie N. Laseter, Cindi L. Brown, Amey S. Bailey, Pilar Lyons, Carrie R. Levine, Donald C. Buso, Gene E. Likens, Jennifer D. Knoepp, Keitaro Fukushima

New Hampshire EPSCoR

Uncertainty in the estimation of hydrologic export of solutes has never been fully evaluated at the scale of a small-watershed ecosystem. We used data from the Gomadansan Experimental Forest, Japan, Hubbard Brook Experimental Forest, USA, and Coweeta Hydrologic Laboratory, USA, to evaluate many sources of uncertainty, including the precision and accuracy of measurements, selection of models, and spatial and temporal variation. Uncertainty in the analysis of stream chemistry samples was generally small but could be large in relative terms for solutes near detection limits, as is common for ammonium and phosphate in forested catchments. Instantaneous flow deviated from the theoretical …

New Unh ‘Hotel’ Reserved For Highly Select Nh Clientele, Lori Tyler Gula

UNH Today Archive

No abstract provided.

Unh Research: New England Lakes Recovering Rapidly From Acid Rain, Lori Tyler Gula

UNH Today Archive

No abstract provided.

Calcium Homeostasis In Escherichia Coli: Characterization Of Mutants And Genome Expression Of Mg1655, Muhammad Arif, Josh Howard, Louis S. Tisa

Molecular, Cellular & Biomedical Sciences

While the role of calcium ions as secondary messengers has been well described in eukaryotic cells, little is known about calcium homeostasis in bacteria at the physiological and molecular levels. Genetic and genomic approaches were used to address calcium regulation and to identify genes (cal) involved in calcium homeostasis. Transposon mutagenesis of Escherichia coli generated several calcium-sensitive mutants that fell into three categories: (i) Ca2+-sensitive chemotaxis mutants, (ii) Ca2+-sensitive cell division mutants, and (iii) Ca2+-sensitive mutants that showed no defects in cell division or chemotaxis. The physiological properties of these Ca2+-sensitive mutants were determined. Besides calcium-sensitivity to 75 mM calcium, …

Radiation Environment At The Moon: Comparisons Of Transport Code Modeling And Measurements From The Crater Instrument, Jamie A. Porter, Lawrence W. Townsend, Harlan E. Spence, Michael J. Golightly, Nathan A. Schwadron, Justin Kasper, Anthony Case, J. B. Blake, Cary Zeitlin

Physics & Astronomy

Abstract

The Cosmic Ray Telescope for the Effects of Radiation (CRaTER), an instrument carried on the Lunar Reconnaissance Orbiter spacecraft, directly measures the energy depositions by solar and galactic cosmic radiations in its silicon wafer detectors. These energy depositions are converted to linear energy transfer (LET) spectra. High LET particles, which are mainly high-energy heavy ions found in the incident cosmic ray spectrum, or target fragments and recoils produced by protons and heavier ions, are of particular importance because of their potential to cause significant damage to human tissue and electronic components. Aside from providing LET data useful for space …

Award--Determining The Effectiveness Of The Clean Air Act And Amendments For The Recovery Of Surface Waters In The Northeastern U.S., William H. Mcdowell, Steve Kahl

NH Water Resources Research Center Scholarship

No abstract provided.

New Hampshire Water Resources Research Center Annual Technical Report Fy 2013, New Hampshire Water Resources Research Center (Nh Wrrc)

NH Water Resources Research Center Scholarship

No abstract provided.

Participatory Water Quality Assessment Through The Nh Lakes Lay Monitoring Program, Jeffrey Schloss

NH Water Resources Research Center Scholarship

No abstract provided.

Report On The 2013 Rapid Assessment Survey Of Marine Species At New England Bays And Harbors, Christopher D. Wells, Adrienne L. Pappal, Yuangyu Cao, James T. Carlton, Zara Currimjee, Jennifer A. Dijkstra, Sara K. Edquist, Arriaan Gittenberger, Seth Goodnight, Sara P. Grady, Larry G. Harris, Leslie H. Harris, Lindsay A. Green, Niels-Viggo Hobbs, Gretchen Lambert, Judith Pederson, Macarena Ros, Jan P. Smith, Lauren Stefaniak, Alexandra Stevens

PREP Reports & Publications

Introduced species (i.e., non-native species that have become established in a new location) have increasingly been recognized as a concern as they have become more prevalent in marine and terrestrial environments (Mooney and Cleland 2001; Simberloff et al. 2005). The ability of introduced species to alter population, community, and ecosystem structure and function, as well as cause significant economic damage is well documented (Carlton 1989, 1996b, 2000; Cohen and Carlton 1995; Cohen et al. 1995; Elton 1958; Meinesz et al. 1993; Occhipinti-Ambrogi and Sheppard 2007; Pimentel et al. 2005; Thresher 2000). The annual economic costs incurred from managing the approximately …

Granite State College, University System Of New Hampshire 2014-2015 Catalog, Undergraduate, Granite State College

Granite State College Catalogs

No abstract provided.

Water Quality And The Landscape: Long-Term Monitoring Of Rapidly Developing Suburban Watersheds 2013, William H. Mcdowell

NH Water Resources Research Center Scholarship

No abstract provided.

The New Hampshire, Vol. 103 [104], No. 49 (Summer 2014), The New Hampshire

The New Hampshire Print Edition

An independent student produced newspaper from the University of New Hampshire. This volume was printed as 103, but it is the 104th volume in the series. This was corrected in pencil.

Contrasted Reactivity To Oxygen Tensions In Frankia Sp. Strain Cci3 Throughout Nitrogen Fixation And Assimilation, Faten Ghodhbane-Gtari, Karima Hezbri, Amir Ktari, Imed Sbissi, Nicholas Beauchemin, Maher Gtari, Louis S. Tisa

New Hampshire Agricultural Experiment Station Publications

Reconciling the irreconcilable is a primary struggle in aerobic nitrogen-fixing bacteria. Although nitrogenase is oxygen and reactive oxygen species-labile, oxygen tension is required to sustain respiration. In the nitrogen-fixing Frankia, various strategies have been developed through evolution to control the respiration and nitrogen-fixation balance. Here, we assessed the effect of different oxygen tensions on Frankia sp. strain CcI3 growth, vesicle production, and gene expression under different oxygen tensions. Both biomass and vesicle production were correlated with elevated oxygen levels under both nitrogen-replete and nitrogen-deficient conditions. The mRNA levels for the nitrogenase structural genes (nifHDK) were high under hypoxic and hyperoxic …

Memorandum: Quality Assurance Of 2013 Great Bay Estuary Eelgrass Monitoring Program Conducted By Kappa Mapping, Inc., Matthew A. Wood

Quality Assurance Project Plans

The purpose of this memorandum is to document the results of quality assurance checks on the 2013 Great Bay Estuary Eelgrass Monitoring Program.

Draft Genome Sequence Of Frankia Sp. Strain Thr, A Nitrogen-Fixing Actinobacterium Isolated From The Root Nodules Of Casuarina Cunninghamiana Grown In Egypt, Sheldon G. Hurst Iv, Rediet Oshone, Faten Ghodhbane-Gtari, Krystalynne Morris, Feseha Abebe-Akele, W. Kelley Thomas, Amir Ktari, Karima Salem, Samira R. Mansour, Maher Gtari, Louis S. Tisa

Molecular, Cellular & Biomedical Sciences

Nitrogen-fixing actinobacteria of the genus Frankia are symbionts of woody dicotyledonous plants termed actinorhizal plants. We report here a 5.3-Mbp draft genome sequence for Frankia sp. stain Thr, a nitrogen-fixing actinobacterium isolated from root nodules of Casuarina cunninghamiana collected in Egypt.

Increased Productivity Of A Cover Crop Mixture Is Not Associated With Enhanced Agroecosystem Services, Richard G. Smith, Lesley W. Atwood, Nicholas D. Warren

New Hampshire Agricultural Experiment Station Publications

Cover crops provide a variety of important agroecological services within cropping systems. Typically these crops are grown as monocultures or simple graminoid-legume bicultures; however, ecological theory and empirical evidence suggest that agroecosystem services could be enhanced by growing cover crops in species-rich mixtures. We examined cover crop productivity, weed suppression, stability, and carryover effects to a subsequent cash crop in an experiment involving a five-species annual cover crop mixture and the component species grown as monocultures in SE New Hampshire, USA in 2011 and 2012. The mean land equivalent ratio (LER) for the mixture exceeded 1.0 in both years, indicating …

Commencement At Unh Manchester, Bridget Finnegan

UNH Today Archive

No abstract provided.

Do You Trust Scientists About The Environment?, Lawrence C. Hamilton

Carsey Publications

In this brief, author Lawrence Hamilton examines the results of a Granite State Poll conducted by the University of New Hampshire Survey Center in late January–early February 2014. The poll asked about public trust in scientists, along with other questions on science, political, and social issues that help to place the science-trust results in perspective. Almost two-thirds of New Hampshire residents surveyed say that they trust scientists to provide accurate information about environmental issues. Only 12 percent do not trust scientists to provide this information. Wide disparities occur along party lines, however, regarding this and other questions about science. The …

Eelgrass Distribution In The Great Bay Estuary And Piscataqua River For 2013, Seth Barker

PREP Reports & Publications

Eelgrass distribution and cover in Great Bay, Little Bay, and the Piscataqua River Estuary were mapped from aerial photography acquired on August 24, 2013. The total area of eelgrass beds with 10% or greater cover was 1683.4 acres. The largest concentration of eelgrass was found in Great Bay with lesser amounts in the vicinity of Portsmouth Harbor. Comparisons to previous years are not made here.

Jolly Good Fellows, Bridget Finnegan

UNH Today Archive

No abstract provided.

Unh Scientists Using Dna Analysis To Assess Abundance Of Nh’S Bobcats, Unh Communications And Public Affairs

UNH Today Archive

No abstract provided.

Unh Researchers Find Promise In Strawberry Cultivation System, Lori Tyler Gula

UNH Today Archive

No abstract provided.

Polyamines And Abiotic Stress In Plants: A Complex Relationship, Rakesh Minocha, Rajtilak Majumdar, Subhash C. Minocha

New Hampshire Agricultural Experiment Station Publications

The physiological relationship between abiotic stress in plants and polyamines was reported more than 40 years ago. Ever since there has been a debate as to whether increased polyamines protect plants against abiotic stress (e.g., due to their ability to deal with oxidative radicals) or cause damage to them (perhaps due to hydrogen peroxide produced by their catabolism). The observation that cellular polyamines are typically elevated in plants under both short-term as well as long-term abiotic stress conditions is consistent with the possibility of their dual effects, i.e., being protectors from as well as perpetrators of stress damage to the …

The New Hampshire, Vol. 103 [104], No. 48 (May 2, 2014), The New Hampshire

The New Hampshire Print Edition

An independent student produced newspaper from the University of New Hampshire. This volume was printed as 103, but it is the 104th volume in the series. This was corrected in pencil.

Validation Of Satellite Rainfall Products For Western Uganda., Jeremy E. Diem, Joel N. Hartter, Sadie J. Ryan, Michael W. Palace

Geography

Central equatorial Africa is deficient in long-term, ground-based measurements of rainfall; therefore, the aim of this study is to assess the accuracy of three high-resolution, satellite-based rainfall products in western Uganda for the 2001–10 period. The three products are African Rainfall Climatology, version 2 (ARC2); African Rainfall Estimation Algorithm, version 2 (RFE2); and 3B42 from the Tropical Rainfall Measuring Mission, version 7 (i.e., 3B42v7). Daily rainfall totals from six gauges were used to assess the accuracy of satellite-based rainfall estimates of rainfall days, daily rainfall totals, 10-day rainfall totals, monthly rainfall totals, and seasonal rainfall totals. The northern stations had …