Environmental Studies Commons^™

Effects Of Environmental Factors On The Abundance Of Blacklegged Ticks, Jasmine L. Miller, Roger A. Lebrun, Howard S. Ginsberg

Senior Honors Projects

The nymphal stage of the blacklegged tick, Ixodes scapularis, is the major vector of Lyme disease, the most common vector-borne disease in North America. Tick abundance has generally been estimated using either flag/drag samples or samples from hosts. However, the biases of these sampling methods have not been adequately studied. We compared samples using both methods from sites in Massachusetts and Wisconsin. Tick abundance was compared with variables related to weather (temperature, relative humidity, and tick adverse moisture events), vegetation (canopy cover, tree density, shrub density, ground vegetation, and leaf litter cover), and host abundance (mice, small mammals, medium …

Bacterial Diversity And Community Composition From Seasurface To Subseafloor, Emily A. Walsh, John B. Kirkpatrick, Scott Rutherford, David C. Smith, Mitchell Sogin, Steven D'Hondt

Arts & Sciences Faculty Publications

We investigated compositional relationships between bacterial communities in the water column and those in deep-sea sediment at three environmentally distinct Pacific sites (two in the Equatorial Pacific and one in the North Pacific Gyre). Through pyrosequencing of the v4-v6 hypervariable regions of the 16S ribosomal RNA gene, we characterized 450 104 pyrotags representing 29 814 operational taxonomic units (OTUs, 97% similarity). Hierarchical clustering and non-metric multidimensional scaling partition the samples into four broad groups, regardless of geographic location: a photic-zone community, a subphotic community, a shallow sedimentary community and a subseafloor sedimentary community (≥1.5 meters below seafloor). Abundance-weighted community compositions …

Carbon, Cookstoves, And Kitchens: Case Studies Of Fuelwood Use And The Potential For Ethanol Substitutability In Rural India, Vietnam, And Tanzania, Monica V. Ogra, Alyssa L. Bosold, Jessie M. Pierce, Quinn M. Heist

Environmental Studies Student Conference Presentations

Fuelwood constitutes the primary domestic cooking fuel in many rural communities throughout the Global South. Unsustainable levels of fuelwood consumption, however, contribute not only to local forest degradation but also to global climate change through the release of black carbon and carbon dioxide into the atmosphere. Moreover, as a driver of indoor air pollution, it also negatively affects human health. Indoor air pollution linked to cooking smoke is among the leading causes of preventable respiratory disease, and negatively impacts women and children through disproportionate and repeated exposure. While many "cleaner" and "more efficient" alternate stove designs have been developed for …

The Role Of Traditional Knowledge About And Management Of Seaworms (Polychaeta) In Making Austronesian Worlds, Cynthia Twyford Fowler

Faculty Scholarship

This paper discusses how Kodi make their worlds cognitively as well as experientially, and how these worlds relate to sustainability and wellbeing. Kodi construct their cognitive worlds as well as their biophysical landscapes whilst interacting with many other species. This presentation focuses on human-polychaete interactions in order to illustrate world making processes. Seaworm traditions have deep historical roots in Austronesian societies and continue to be crucial for the wellbeing of contemporary communities. World-making processes are evident in what Kodi people say about seaworms and how they move through space relative to seaworms. While Kodi construct time they simultaneously construct space …

Sites Prioritization Of Commercial Solar Photovoltaic Systems Using Gis Resources In Massachusetts, Zifeng Li

Sustainability and Social Justice

ABSTRACT SITES PRIORITIZATION OF COMMERCIAL SOLAR PHOTOVOLTAIC SYSTEMS USING GIS RESOURCES IN MASSACHUSETTS ZIFENG LI

My summer internship at SolarFlair Energy Inc. was conducted from May 20 to August 21 in 2015, where I cooperated with two supervisors for my work; Dodge A. Travis and Daniel T. Greenwood. I was working as a Geographic Information Science analyst to help generate business and sell commercial solar panel systems. By using available GIS databases to assess viable sites for solar installations, analyzing sites using and prioritizing potential sites through multi-criteria analysis, I successfully generate business lists for a variety of towns in …

Gis Professional Portfolio For William Thoman, William M. Thoman

Sustainability and Social Justice

Portfolio Overview

The following professional portfolio demonstrates the use of Geographic Information Systems and associated fields such as remote sensing, computer programming, and spatial statistics in order to explore environmental and human phenomena and the interactions between humanity and the environment. The following projects transition from more narrowly focused remote sensing or spatial statistics projects to those which combine a number of skills and knowledge bases

Worcester, Ma Bike Share Feasibility Study, Corinne Jachelski

Sustainability and Social Justice

The Worcester, MA Bike Share Feasibility Study was conducted to determine whether the City of Worcester is suitable for a city wide bike share. This study includes a general history of bike shares; their benefits based on major categories of social, environmental, economic, and transit; and overview of demographic composition of Worcester. Several cities of similar population size to Worcester that have implemented bike share systems are reviewed as context for system size. Other completed bike share feasibility studies informed the methods employed in this study, as well as provided more information broadly and specifically about all of the elements …

Green Building Retrofits In A Corporate Setting, Edward M. Snook Jr.

Sustainability and Social Justice

Buildings influence human consumption levels and lifestyles, require resources for creation and operation, and occupy physical space in the environment. This study examines if energy efficient buildings provide sufficient benefits to overcome costs in a certified green building project and the ways that tenants and owners can work together to accomplish retrofit projects and LEED certification in existing buildings. The results of the LEED feasibility analysis demonstrated that the office building studied could achieve Silver or Gold certification with little or no infrastructure and process change cost. Additionally, benefits exist for both the building’s owner and tenant, and costs can …

Garden-Based Learning In Worcester, Massachusetts: Addressing Science And Health Curriculum Gaps Through Summer Youth Programming, Julia Groenfeldt

Sustainability and Social Justice

This research examines the role of experiential garden-based “food citizenship” education for improving school year health and science curriculum retention and to further influence broader social and environmental awareness. Studies demonstrate the importance of these educational models to teach children the processes of food production to consumption. Through new knowledge on food systems education, children will learn to become more mindful and conscious consumers that will ultimately impact personal health outcomes as well as broader global sustainability. Education is a key component to the emerging alternative food network (AFN) that is challenging the modern agro-industrial food system. This research provides …

Multi-Year Optimization Of Malaria Intervention: A Mathematical Model, Harry J. Dudley, Abhishek Goenka '15, Cesar J. Orellana '17, Susan E. Martonosi

All HMC Faculty Publications and Research

Malaria is a mosquito-borne, lethal disease that affects millions and kills hundreds of thousands of people each year, mostly children. There is an increasing need for models of malaria control. In this paper, a model is developed for allocating malaria interventions across geographic regions and time, subject to budget constraints, with the aim of minimizing the number of person-days of malaria infection.

Plant Community Composition And Structure Monitoring For Scotts Bluff National Monument, 2011-2015 Summary Report, Isabel W. Ashton, Christopher J. Davis

United States National Park Service: Publications

Executive Summary

The Northern Great Plains Inventory & Monitoring Program and Fire Effects Program have been monitoring vegetation in Scotts Bluff National Monument for over 18 years. While methods have changed slightly, this report summarizes data from over 80 locations from 1998-2015. Below, we list the questions we asked using these data and provide a summarized answer. For more details see the full report. A summary of the current condition (2011-2015) and trends (based on 1988-2015) in plant communities at Scotts Bluff is found in Table ES-1.

1. What is the current status of plant community composition and structure of …

Air Quality Related Values (Aqrvs) For Northern Great Plains Network (Ngpn) Parks, Effects From Ozone; Visibility Reducing Particles; And Atmospheric Deposition Of Acids, Nutrients And Toxics, Timothy J. Sullivan

United States National Park Service: Publications

Summary

This report describes the Air Quality Related Values (AQRVs) of the Northern Great Plains Network (NGPN). AQRVs are those resources sensitive to air quality and include streams, lakes, soils, vegetation, fish and wildlife, and visibility. This report also describes air pollutant emissions and air quality in NGPN, and their effects on AQRVs. The primary pollutants likely to affect AQRVs include nitrogen (N) and sulfur (S) compounds (nitrate [NO₃^-], ammonium [NH₄⁺], and sulfate [SO₄^2-]); ground-level ozone (O₃); haze-causing particles; and airborne toxics.

The 13 parks that are included in …

Park Management Gis Intern In New York City Department Of Park & Recreation, Dongjun Zhou 3125032

Sustainability and Social Justice

My park management GIS internship with New York City Department of Parks & Recreation took place during June and August 2015, where I primarily worked under the guidance of Terese Flores, the park manager for the borough of Manhattan. My internship responsibility was assisting the Park Manager with park improvement project that primarily involved asset mapping for park properties, field data collecting and entry, budget devising as well as park staff coordinating. According to the requirement of GISDE program at Clark University, the content of this report mainly covers three aspects of this internship: the introduction for the mission and …

Mechanisms Of Methane Transport Through Populus Trichocarpa, Ellynne Marie Kutschera, M. A. K. Khalil, Andrew Rice, Todd Rosenstiel

Physics Faculty Publications and Presentations

Although the dynamics of methane (CH4) emission from croplands and wetlands have been fairly well investigated, the contribution of trees to global CH4 emission and the mechanisms of tree transport are relatively unknown. CH4 emissions from the common wetland tree species Populus trichocarpa (black cottonwood) native to the Pacific Northwest were measured under hydroponic conditions in order to separate plant transport mechanisms from the influence of soil processes. Roots were exposed to CH4 enriched water and canopy emissions of CH4 were measured. The average flux for 34 trials (at temperatures ranging from 17 to 25 °C) was 2.8 ± 2.2 …

Spatial Engagement With Poetry By Heather H. Yeung, Deborah C. Bowen

The Goose

Review of Spatial Engagement with Poetry by Heather H. Yeung.

Giving Voice To The Wild: The Rhetorical Legacy Of Sigurd Olson And The Singing Wilderness, Brant Short

Speaker & Gavel

In this study I will examine Olson‘s first and most notable work, The Singing Wilderness, published in 1956. This book became a standard work of the period, it established Olson as a national leader among American conservationists, and most significantly, it served as a rhetorical blueprint for others who were greatly inspired by Olson‘s personal quest to understand the natural world on its own terms. In this essay, I will describe Olson‘s status among scholars and provide a biographical overview of significant events in his life. Next I will analyze The Singing Wilderness as a rhetorical text which established Olson‘s …

Influence Of Urban Disturbances, Soil Properties, And Other Abiotic And Biotic Factors On L. Maackii Invasions Of Remnant Urban Riparian Hardwood Forests, Taylor B. Johnson

Environmental Studies: Student Scholarship & Creative Works

Urbanization is a global demographic trend that may have significant and detrimental effects on adjacent urban ecosystems. Lonicer Maackii (L. maackii), commonly referred to as Amur honeysuckle, is an invasive shrub that has invaded the remnant temperate hardwood forests of Rock Island County, IL. The goal of this study was to examine the effects of urbanization and urban soil properties on the degree of L. maackii invasion throughout this county next to the Mississippi river. Soil samples were tested at 36 forest sites for Soil Organic Matter and Soil texture. Linear regression models were ran on the results of …

Creating Protected Areas On Public Lands: Is There Room For Additional Conservation?, Rodrigo A. Arriagada, Cristian M. Echeverria, Danisa E. Moya

Forest Collaborative Research

Most evaluations of the effectiveness of PAs have relied on indirect estimates based on comparisons between protected and unprotected areas. Such methods can be biased when protection is not randomly assigned. We add to the growing literature on the impact of PAs by answering the following research questions: What is the impact of Chilean PAs on deforestation which occurred between 1986 and 2011? How do estimates of the impact of PAs vary when using only public land as control units? We show that the characteristics of the areas in which protected and unprotected lands are located differ significantly. To satisfactorily …

State Of The U.S. Ocean And Coastal Economies: Coastal States Summaries - 2016 Update, Kildow, Charles S. Colgan

Publications

This publication contains two-page ocean and coastal economic summary reports for each of the 30 coastal states with data complementing the Center for the Blue Economy/National Ocean Economics Program latest State of the U.S. Ocean and Coastal Economies - Update 2016 report.

State Of The U.S. Ocean And Coastal Economies 2016 Update, Dr. Judith T. Kildow, Charles S. Colgan, Pat Johnston

Publications

Relative to the landmass of coastal regions, America’s coasts and oceans contribute a disproportionately high value to the United States economy. For the past fifteen years, the National Ocean Economics Program (NOEP) has compiled time-series data that track multiple indicators for economic activities, demographics, natural resource production and values, non-market values, and federal expenditures in the U.S. coastal zone on land and in the water. On our website (www.oceaneconomics.org), government agencies, academia, industry, advocacy groups and the general public representing more than 40 nations— have had interactive access to this information and used it widely for many different purposes.

This …