Changes In Tursiops Truncatus Distribution And Behavior In The Drowned Cayes, Belize, And Correlation To Human Impacts, Jazmin Garcia

HCNSO Student Theses and Dissertations

Human interaction greatly influences the behavior and distribution of bottlenose dolphins (Tursiops truncatus). This project focuses on the distribution and behavior of bottlenose dolphins in the Drowned Cayes, Belize. Prior to the 2000s, the area was relatively undeveloped and undisturbed and had minimal human activity. Since the turn of the millennium, development and ecotourism activity has flourished in the area, increasing by more than 800,000 visitors from 1998-2006. Boat-based surveys were conducted in 2015 and were combined with previous survey data collected from 2005-2012 and compared to behavioral survey results from 1999-2000. Total dolphin observation time as a …

How The Antiquities Act Has Expanded The National Park System And Fueled Struggles Over Land Protection, John Freemuth

Public Policy and Administration Faculty Publications and Presentations

As Americans anticipate summer vacation, many are planning trips to our nation’s iconic national parks, such as the Grand Canyon, Zion, Acadia and Olympic. But they may not realize that these and other parks exist because presidents used their power under the Antiquities Act, enacted on June 8, 1906, to protect those places from exploitation and development.

Conservation Planning And Decision Support In A Nonprofit Organization: A Summer Internship With Natureserve, Samantha Coccia

Sustainability and Social Justice

This report is an account of my internship spent with NatureServe, a nonprofit Conservation organization that provides detailed scientific data used in conservation decisions made across the Americas. NatureServe works with a network for natural heritage programs and is made up of four regional offices with headquarters in Arlington, VA. I spent my summer in their Boulder, CO location in the Conservation Planning and Decision Support Department under the guidance of Dr. Patrick Crist. I was offered my choice of two projects to work on, and was also offered a continuation of my internship with additional responsibilities given. Throughout the …

When The Hunt Is Over: Culture And Conservation In Kazakh Eagle Falconry, Nolan R. Ebner

Independent Study Project (ISP) Collection

The last large scale practice of falconry that uses Golden Eagles takes place in Bayan- Ulgii, Mongolia. Recent media exposure allowed for the development of a tourism industry in the region that culminates in two annual festivals celebrating the cultural heritage. Modern eagle falconry practices have been shown to deviate from traditional hunting and training methods. While Golden Eagles are listed with a regional conservation status of Least Concern by the Mongolian Red List, these new practices place the health of Golden Eagle populations in the region at risk, especially as tourism continues to grow. Furthermore, a changing environmental climate …

The Coastal Monitor: Vol. 1, No. 2, John Tanacredi Ph.D.

The Coastal Monitor

At a recent event a colleague asked me, “So what do you do at CERCOM?” My immediate response was the “M” word fundamentally! After 45 years involved in environmental sciences, monitoring remains the most important and critical aspect of not only any field station in support of the academics conducted, but the seminal responsibility to be able, as a scientist, to reveal trends in the massive volume of data collected through routine monitoring exercises. It is extremely rare for a single data point, or even a single season of data, no matter how accurate the individual data point is, to …

Occupancy Rates And Detection Probabilities Of Red-Backed Salamanders On The Virginia Fall Line, Jay D. Mcghee

Virginia Journal of Science

To meet the conservation needs of declining amphibian populations, there is a need to assess monitoring techniques in various habitat types and seasons. I assessed detection rates and proportion of area occupied via transect monitoring for red-backed salamanders at a site along the Virginia Fall Line in Doswell, Virginia. I established 24 transects in a 3.2-ha area in both riparian and upland habitats. Objects providing natural cover along these transects were sampled 3 times a week in fall and spring over a two-year period. Models of occupancy and detection were developed and compared using Akaike’s Information Criterion. Based on 113 …

The Measure Of Nematode Diversity In Response To Varying Management Practices And Features In Restored And Remnant Prairie Ecosystems, Heaven A. Hulshizer

UCARE: Research Products

"Tallgrass prairies are the most endangered ecosystem in North America” (Helen et al 2013). “Surveys suggest that since European settlement, declines in area of native prairie range as high as 99.9%”(Sampson, Fred and Fritz Knopf 1994). Prairie ecosystem services are abundant and range from mitigating floods to promoting biodiversity. (USDA Forest Service).Given these benefits, restoring prairies and maintaining native areas should be an important conservation priority. Nematodes, the most abundant animal species on earth, have been used as bio-indicators of soil quality (Neher; Todd). To better understand the dynamics of nematode diversity in native and restored prairies we examines whether …

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 …

The Effectiveness Of The Colby College Electricity Competition On Promoting Electricity Conservation To Students, Jeff Vaz

Journal of Environmental and Resource Economics at Colby

This paper examines the effectiveness of the Colby College electricity reduction competition in altering students’ behavior to conserve electricity. The Colby College electricity reduction competition is an information-based policy that Colby implemented to promote the conservation of electricity, which are a major contributor to greenhouse gas (GHG) emissions in the United States. The study analyzes if different residence halls reduce electricity consumption by different amounts during the competition period. Results indicate that only 4 of 22 residence halls reduced electricity usage during competition periods in a statistically significant manner. The study concludes that the electricity competition at Colby College is …

Atlas Of Maine: Wind Turbine Conflict With Conservation Land And Lynx Habitat, Wesley M. Zebrowski

Atlas of Maine

This map displays a conflict between Maine’s wind resources and its rich wildlife habitats. The map contrasts wind energy potential with conservation land and lynx critical habitat. By overlaying current and proposed wind turbines, the map shows which sites overlap with conservation land and lynx habitat. A buffer zone of 2000 meters around each turbine is used to estimate this conflict. A rough 2000 meters distance is the most widely agree upon turbine buffer by those who suggest buffers, utilized by over 18 different sources, including academic, local, and international sources.

Assessing Lakesmart: The Development And Effectiveness Of A Lake Protection Program, Alexa A. E. Junker

Honors Theses

Maine’s nearly 6,000 lakes are a vital resource for the state, generating $6 billion in annual economic activity and sustaining 52,000 jobs. Over the course of the last several decades, this resource has increasingly been threatened by development and related problems, especially nutrient runoff. LakeSmart is a lake protection program designed to stem the flow of nutrient runoff by promoting and rewarding the use lake-friendly landscaping practices.

For this project, I traced the history of LakeSmart from its roots in the Maine Department of Environmental Protection and, through stakeholder interviews and surveys, chronicled its development into the flagship program of …

Exploring Institutions, Governance And Collaboration For Regional Integration Of Protected Areas In Québec, Windekind Buteau-Duitschaever Mr.

Theses and Dissertations (Comprehensive)

Abstract

The concept of protected areas (PAs) has undergone important changes. The goals and purposes of PAs are to conserve animal and plant species, landscapes and ecological processes and to provide for outdoor recreation opportunities. PA management approaches have also undergone important changes. The once widely accepted doctrines of top-down management have been replaced by management models that include a diversity of actors. In some instances, actors are now sharing governing responsibilities with state representatives while in other instances central government has transferred rights, responsibilities and authority to lower levels of government and non-state actors for the planning and management …

"One Narrow Thread Of Green": The Vision Of May Theilgaard Watts, The Creation Of The Illinois Prairie Path, And A Community's Crusade For Open Space In Chicago's Suburbs, Anne M. Keller

Antioch University Dissertations & Theses

Women's environmental activism prior to the early 1960s in America focused on women's roles as municipal housekeepers or emphasized wilderness conservation. I offer in this dissertation the story of the Illinois Prairie Path, the country's first rails-to-trails conversion to apply for National Recreation Trail status, and the innovative women who fought for nature preservation in a suburban setting rather than in a wilderness area. Led by renowned writer and naturalist, May Theilgaard Watts, these women built support for the public footpath project by fostering an ecological awareness throughout their region. I place them in the tradition of Chicago female reformers …

All’S Whale That Ends Whale: How Correctly Identifying Antarctic-Feeding Grounds Of Oceania Humpbacks Could Save An Endangered Population, Davey Holmes

Pomona Senior Theses

Although major whaling practices have ceased, increasing human involvement and influence in the world’s marine ecosystems continue to adversely effect global whale populations. It is a major concern throughout Antarctic waters, where endangered Oceania Humpback Whales (Megaptera novarangliae) annually feed. This study analyzes the extent to which a proposed marine protected area within the Ross Sea may indirectly harm the last remaining endangered population of Humpbacks. Using current satellite tracks of southern Humpback migrations, this model maps the effects of displaced Toothfish fisheries, and suggests further conservations efforts, based on New Zealand’s Precautionary Approach, to protect these vulnerable whales.

Effects Of Environmental And Anthropogenic Factors On The Range Contraction Of Bird And Mammal Species, Patrice M. Betz

Master's Theses or Doctor of Nursing Practice

The largest contributor to biodiversity loss is habitat destruction caused by humans. A common consequence of habitat destruction is a reduction in the geographic range of a species. Little research has been done to separate the contribution of anthropogenic and environmental variables to the extinction or persistence of species that have experienced range contraction. In this thesis, I examined the relative effects of several variables (elevation, mean annual precipitation, mean annual temperature, human population density, distance from roads, and proportion of land converted to built-up land, cropland, and rangeland) on the geographic ranges of declining bird and mammal species from …

Attracting Songbirds With Conspecific Playback: A Community Approach, Leanna N. Dejong, Samuel D. Cowell, Thuy Nhi Nguyen, Darren S. Proppe

University Faculty Publications and Creative Works

The presence of conspecifics is an indicator of good habitat for a number of songbird species; a cue positively associated with territory selection. Thus, conspecific playback may be a cost-effective tool for attracting songbirds to particular, preselected sites of high-quality habitat. Previous studies have used conspecific playback to encourage the establishment of a single species; however, few have researched the potential for the simultaneous attraction of multiple species. Furthermore, empirical studies on the effect of song playback for nonfocal species are sparse. We investigated whether 6 migratory songbird species are more likely to establish nesting territories in response to multispecies …

Understory Tree Composition, Diversity And Natural Regeneration Status Of Uluguru Forests In Morogoro- Tanzania, David S. Kacholi

Journal of Humanities and Social Sciences

Most of the studies on tropical forests vegetation have tended to focus on trees with a diameter at breast height (DBH) greater or equal to 10cm, and limited attention has been paid to understory. This study was conducted in Uluguru forests in Morogoro region, Tanzania, with an objective of describing the understory tree composition, diversity and natural regeneration of some threatened species in the seven surveyed forests. Sampling was done in the forests whereby classification of understory was done into three layers: seedling (individuals with height < 1m), small sapling (DBH ≤ 3 cm), and large sapling (3 < DBH < 10 cm) layers. Large saplings were sampled in 20m × 20m plots, while subplots of 5m ×5m and 2m ×2m were placed at the centre of each plot for sampling small saplings and seedlings, respectively. A total of 2119 seedlings, 1798 small saplings, and 2585 large saplings belonging 91, 102, and 104 species, respectively, were recorded. Fabaceae was the most speciosefamily in all the studied compartments, and had higher familial importance value (FIV). The seedling layer had higher tree density than the large and small sapling layers, but the large and small sapling layers were more diverse than the seedling layer (p < 0.05).The species richness in each forest was significantly higher in the understory than overstory layer (p < 0.034); and the pairing was strongly positively correlated (r = 096, p = 0.0003). The Sørensen coefficients of similarities between understory and overstory ranged between 0.53–0.77, and were higher within each forest than among them. All forests revealed to have good regeneration, though it is important to understand that some species unveiled poor or hampered regeneration pattern.In summary, the understory was observed to be speciose than overstory layer; it was dominated by family Fabaceae, and the natural regeneration of the forests were good, however, some species need due attention.

Slides: Moffat Collection System Project, Travis Bray

Innovations in Managing Western Water: New Approaches for Balancing Environmental, Social and Economic Outcomes (Martz Summer Conference, June 11-12)

Presenter: Travis Bray, Project Manager, Moffat Collection System Project, Denver Water

45 slides

The Management And Stewardship Of A Cetacean Collection, Rebecca Vele

Seton Hall University Dissertations and Theses (ETDs)

Cetacean, by definition, is a marine mammal of the order Cetacea; a whale, dolphin or porpoise. In light of their social intellect and friendly appearance, cetaceans are used in institutions such as zoos and aquariums as a source of education and entertainment for the public. Before the Marine Mammal Protection Act of 1972, cetaceans were captured worldwide including in U.S. waters. In the United States today, there are over 224 zoos and aquariums accredited by the Association of Zoos and Aquariums. Out of those 224, 34 of these institutions display cetaceans.

Even though the Marine Mammal Protection Act “Prohibits, with …

Recommendations For Conservation Easement Reform, Amy Murphy

Environmental Studies Senior Seminar Projects

Virginia has a well-established easement program which offers landowners a state income tax credit in return for donating land rights such as development and subdivision rights. Currently, there are inefficiencies with easements which could be lessened with reform (Owley 2011, Rissman 2011). This paper proposes that Virginia establish statewide conservation priorities and switches from a flat rate credit for easement donations to a tiered system which provides greater incentives for easements on land with high conservation value (McLaughlin and Pidot 2013). Additionally, this paper proposes that Virginia require adaptive language in easement terms and standardizes monitoring procedures.

Poster session prepared …

Riparian Zone Protocol: A Necessary Addition To An Existing Program, Natalya Ares

Environmental Studies Senior Seminar Projects

As temperature trends increase on Earth and the negative effects of anthropogenically driven climate change become clearer, the diversity and health of our natural resources continue to be threatened at a growing rate. Riparian zones, or streamside zones, are one of these natural resources that under normal conditions, provides an enormous variety of ecosystem services. Not only do they provide habitat, food, and shelter for organisms in the area, but they also act as biological and physical buffers to pollution and sedimentation. Climate change threatens the health of this natural buffer. As temperatures increase, the patterns of the season change …

The Coastal Monitor: Vol. 1, No. 1, John Tanacredi Ph.D.

The Coastal Monitor

The Center for Environmental Research and Coastal Oceans Monitoring (CERCOM) is a scientific coastal research center and field station dedicated to exploring our global coastal environments and near-shore oceans. CERCOM is the field station support facility for all sciences at Molloy College and services the degree programs of Biology, Chemistry, and Environmental Studies, with special attention to a B.S. degree in Earth and Environmental Studies. Located at the West Sayville Boat Basin on the Great South Bay, CERCOM is a 2,500 sq. ft. field station estuarine/ marine science laboratory where environmental monitoring and analysis is conducted 365 days a year.

Updated Marine Mammal Distribution And Abundance Estimates In British Columbia, Benjamin D. Best, Caroline H. Fox, Rob Williams, Patrick H. Halpin, Paul C. Paquet

Population Distribution and Habitat Collection

Information relating to the distribution and abundance of species is critical for effective conservation and management. For many species, including cetacean species of conservation concern, abundance estimates are lacking, out of date and/or highly uncertain. Systematic, line-transect marine mammal surveys were conducted in British Columbia’s (BC) coastal waters over multiple years and seasons (summer 2004, 2005, 2008, and spring/autumn 2007). In total, 10,057km of transects were surveyed in an 83,547km2 study area. Abundance estimates were calculated using two different methods: Conventional Distance Sampling (CDS) and Density Surface Modelling (DSM). CDS generates a single density estimate for each stratum, whereas DSM …

Linking Environmental Restoration And Stewardship In Colorado: Learning From The Rocky Mountain Conservancy, Jordan Carper

Undergraduate Theses, Professional Papers, and Capstone Artifacts

The Rocky Mountain Conservancy (RMC) is a well-known nonprofit organization supporting restoration and environmental stewardship and leadership in Rocky Mountain National Park. The RMC promotes stewardship of Rocky Mountain National Park and similar lands through education and philanthropy. Since 1931, the RMC (previously Rocky Mountain Nature Association) has been producing educational publications, offering seminars, supporting research, and providing aid and philanthropic support to Rocky Mountain National Park and their other public lands partners. The RMC has also established a unique Conservation Corps in which college students work side-by-side with park and forest service teams in Rocky Mountain National Park and …

Understanding Protected Area Resilience: A Multi-Scale, Social-Ecological Approach, Graeme S. Cumming, Craig R. Allen, Natalie C. Ban, Duan Biggs, Harry C. Biggs, David H. M. Cumming, Alta De Vos, Graham Epstein, Michel Etienne, Kristine Maciejewski, Raphael Mathevet, Christine Moore, Mateja Nenadovic, Michael Schoon

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

Protected areas (PAs) remain central to the conservation of biodiversity. Classical PAs were conceived as areas that would be set aside to maintain a natural state with minimal human influence. However, global environmental change and growing cross-scale anthropogenic influences mean that PAs can no longer be thought of as ecological islands that function independently of the broader social-ecological system in which they are located. For PAs to be resilient (and to contribute to broader social-ecological resilience), they must be able to adapt to changing social and ecological conditions over time in a way that supports the long-term persistence of populations, …

A Gis Assessment Of Ecoregion Representation In Chile's Existing And Proposed Integrated Network Of Protected Areas, Jessica Schutz

Graduate Student Theses, Dissertations, & Professional Papers

Chile's state designated protected areas are reported to show representation bias and to be unable to meet conservation goals. Private protected areas are considered an important tool to resolve these issues, which has led to support for increasing the role of private protected areas in Chile and creating an integrated public-private protected area network. But the validity of the capacity of private protected areas to fix Chile's state protected area network bias, and the advantage of creating an integrated protected area network, have not been assessed. This study uses the most recent data on Chile's state, private, and international protected …

Observations Of Hippopotamus H. Amphibius In The Little Scarcies River Of Sierra Leone And Arguments For Their Conservation Based On Roles They Play In Riverine Grasslands And Nutrient Loading, Lindsey R. Perry

Dissertations, Master's Theses and Master's Reports

A small population of Hippopotamus amphibius remains in Sierra Leone and conservation efforts may be needed to support the Hippos and their indirect benefits to fisheries and grassland production. The hippo is a known ecosystem engineer, and a potentially important contributor of nutrients to the river systems they inhabit supporting the food web and local fisheries. In this study I observed hippos in the Little Scarcies River and uplands of the Outamba-Kilimi National Park to estimate their numbers and ultimately their potential input of nutrients into the river. Hippos forage at night in grasslands neighboring rivers, removing up to 3.62 …

Public-Private Water Conservation: An Assessment Of Attitudes In The Deer Lodge Valley, Montana, Elizabeth K. Rial

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

Assessing Public Attitudes Toward Endangered Freshwater Mussels, Belyna Marie Bentlage

Open Access Theses

The Tippecanoe River, situated in northcentral Indiana, supports five federally endangered and one federally threatened species of freshwater mussels. Past overharvesting and present water quality degradation threaten the survivorship of these mussels. To increase awareness about the imperilment of the mussels, we are designing an outreach and education campaign. The first step of the campaign is to collect baseline data about riparian landowner attitudes toward the federally listed mussels. We surveyed 1804 landowners who own property along the Tippecanoe River. We found significant differences in attitudes among landowners based on their awareness of a conflict that occurred as a result …

The Role Of Hybridization And The United States Fish And Wildlife Service Biologists’ Discretion In The Implementation Of The Endangered Species Act, Jennifer F. Lind-Riehl

Dissertations, Master's Theses and Master's Reports - Open

The Endangered Species Act (ESA) requires that the “best available scientific and commercial data” be used to enable the protection of critically imperiled species from extinction and preserve biodiversity. However, the ESA does not provide specific guidance on how to apply this mandate. In addition, the interpretation of scientific data can be uncertain and controversial, particularly regarding species delineation and hybridization issues. US Fish and Wildlife Service (FWS) field biologists must decide what the best science is and how to interpret and apply it in their recommendations. As a result, FWS field biologists often have considerable discretion when it comes …