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Articles 1 - 30 of 30
Full-Text Articles in Physical Sciences and Mathematics
An Acoustic Monitoring Method For Assessing River Dolphin Presence And Changes In The Context Of Anthropogenic Development, Charles A. Muirhead
An Acoustic Monitoring Method For Assessing River Dolphin Presence And Changes In The Context Of Anthropogenic Development, Charles A. Muirhead
Graduate Masters Theses
Populations of river dolphins throughout Asia are in decline as a direct result of intensified anthropogenic activity along river systems. Water development projects, land use change, contamination, and intensified fishing practices are known factors contributing to the probable extinction of the Yangtze river dolphin (Lipotes vexillifer) and declining populations of the South Asian river dolphin (Platanista gangetica spp.), Irrawady dolphin (Orcaella brevirostris), and finless porpoise (Neophocaena a. asiaeorientalis). Although not yet as extensive, river system development in South America is following a similar path as that of Asia, with impacts on dolphin species likely to follow. Currently, the Amazon river …
Jefferson Currents: Fall Volume 17, Issue 2, 2018
Jefferson Currents: Fall Volume 17, Issue 2, 2018
Jefferson Currents: The Energy Conservation Newsletter
Jefferson Currents: Fall Volume 17, Issue 2, 2018
Jefferson Currents: Spring Volume 17, Issue 1, 2018
Jefferson Currents: Spring Volume 17, Issue 1, 2018
Jefferson Currents: The Energy Conservation Newsletter
Jefferson Currents: Spring Volume 17, Issue 1, 2018
Relationships Among Biodiversity Dimensions Of Birds In Nebraska, Nadejda Mirochnitchenko
Relationships Among Biodiversity Dimensions Of Birds In Nebraska, Nadejda Mirochnitchenko
School of Natural Resources: Dissertations, Theses, and Student Research
Biological diversity, or biodiversity, is a multi-dimensional concept that can be decomposed to measure information about taxonomic, phylogenetic, and functional variation within communities. Although the dimensions of biodiversity are interrelated, the assumption that measuring one dimension of diversity can inform about patterns in another dimension does not necessarily follow from theory or empirical study. The relationships among biodiversity dimensions is not well understood, nor how differences among dimensions could influence conservation decision making. Using the avian community as a study system, we explored the relationships of breadth metrics from the taxonomic, phylogenetic, and functional dimensions among each other and across …
Trash Talk: The Effects Of Plastic Pollution On Seabirds In Narragansett Bay, Erin A. O'Neill
Trash Talk: The Effects Of Plastic Pollution On Seabirds In Narragansett Bay, Erin A. O'Neill
Pell Scholars and Senior Theses
Plastic pollution in the ocean is a global concern with more than 8 million tons of plastic dumped into our oceans every year. This policy paper assesses plastic pollution in Narragansett Bay and the negative implications it holds on local seabird populations. Also, essential background information on plastic production and throwaway culture is provided. Moreover, the biological significance of seabirds is described, highlighting the vital role such populations play in local ecosystems such as Narragansett Bay. This paper contributes research to the global issue of plastic pollution by observing declining native wildlife life populations, such as seabirds, on a local …
Wild Bees Of Grand Staircase-Escalante National Monument: Richness, Abundance, And Spatio-Temporal Beta-Diversity, Olivia Messinger Carril, Terry Griswold, James Haefner, Joseph S. Wilson
Wild Bees Of Grand Staircase-Escalante National Monument: Richness, Abundance, And Spatio-Temporal Beta-Diversity, Olivia Messinger Carril, Terry Griswold, James Haefner, Joseph S. Wilson
All PIRU Publications
Interest in bees has grown dramatically in recent years in light of several studies that have reported widespread declines in bees and other pollinators. Investigating declines in wild bees can be difficult, however, due to the lack of faunal surveys that provide baseline data of bee richness and diversity. Protected lands such as national monuments and national parks can provide unique opportunities to learn about and monitor bee populations dynamics in a natural setting because the opportunity for large-scale changes to the landscape are reduced compared to unprotected lands. Here we report on a 4-year study of bees in Grand …
Valuing Visitor Access To Forested Areas And Exploring Willingness To Pay For Forest Conservation And Restoration Financethe Case Of Small Island Developing State Of Mauritius, Pricila Iranah, Pankaj Lal, Bernabas T. Wolde, Pralhad Burli
Valuing Visitor Access To Forested Areas And Exploring Willingness To Pay For Forest Conservation And Restoration Financethe Case Of Small Island Developing State Of Mauritius, Pricila Iranah, Pankaj Lal, Bernabas T. Wolde, Pralhad Burli
Department of Earth and Environmental Studies Faculty Scholarship and Creative Works
Small island developing states share as common constraints their small size, geographical dispersion, greater vulnerability to rapid and drastic environmental change, and limited administrative and technical resources. Within these, they have to cater for urban and agricultural areas, as well as enough natural landscape for ecosystem services. Funding for conservation of forest ecosystems on these islands has received relatively less attention and national park systems are chronically underfunded. We used Mauritius as a case study to investigate the willingness to pay for conservation of state and privately owned forests. It is part of a biodiversity hotspot with highly threatened forest …
Using Drones To Generate New Data For Conservation Insights, Paul Lorah, Alice Ready, Emma Rinn
Using Drones To Generate New Data For Conservation Insights, Paul Lorah, Alice Ready, Emma Rinn
International Journal of Geospatial and Environmental Research
Human impact on the environment is driving a decline in biodiversity that heightens the need for informed management of conservation lands. Unmanned aerial vehicles (UAVs), also known as drones, are an increasingly cost-effective tool for generating high-quality data used to map landscape features, analyze land cover change and assess the effectiveness of conservation efforts. Traditional sources of remotely sensed data such as satellites and aircraft can be costly, inflexible and unable to detect fine-scale surface variation. This paper explores the advantages (and challenges) of analyzing data collected by drones to generate useful conservation management insights. We focus on three key …
Avian Jurisprudence And The Protection Of Migratory Birds In North America, Marshall A. Bowen
Avian Jurisprudence And The Protection Of Migratory Birds In North America, Marshall A. Bowen
St. Mary's Law Journal
Abstract forthcoming
An Evaluation Of Deterrent Methods Utilized To Prevent Crop Raiding By African Elephants (Loxodonta Africana) In The Kasigau Wildlife Corridor, Kenya, Rebecca Lynn Von Hagen
An Evaluation Of Deterrent Methods Utilized To Prevent Crop Raiding By African Elephants (Loxodonta Africana) In The Kasigau Wildlife Corridor, Kenya, Rebecca Lynn Von Hagen
Masters Theses & Specialist Projects
Escalating human elephant conflict (HEC) continues to be a contributing factor
towards elephant decline, and crop raiding is the most common form of negative
human-elephant interactions. For communities that cannot reverse or prevent crop
raiding, it is necessary to contain HEC events through deterrent measures. Few
deterrent measures exist that combine practicality and affordability while also
preventing habituation by elephants. This project focused on comparing the efficacy of
deterrent methods to assess which was the most successful at preventing elephants
from entering crops in the farming community of Sasenyi, Kenya. In this paired-control
study, four deterrent methods were evaluated: acacia …
Cultural Politics Of Community-Based Conservation In The Buffer Zone Of Chitwan National Park, Nepal, Yogesh Dongol
Cultural Politics Of Community-Based Conservation In The Buffer Zone Of Chitwan National Park, Nepal, Yogesh Dongol
FIU Electronic Theses and Dissertations
The dissertation research examines the socio-economic and political effects of community-based conservation initiatives within the Bagmara buffer zone community forests of Chitwan National Park, Nepal. In particular, the study investigates the role of buffer zones creation in structuring the way rural property rights have been defined, negotiated, and contested, in reinforcing or reducing patterns of ethnic dominance and exclusion, and in influencing how cultural identities are constituted and renegotiated. Using a political ecology framework with a specific focus on theoretical concepts of environmentality and territorialization, I conducted 12 months ethnographic and quantitative survey field research in the buffer zone communities …
Environmental Clearinghouse Of Schenectady, Kate Van Patten
Environmental Clearinghouse Of Schenectady, Kate Van Patten
Honors Theses
This paper analyses Environmental Clearinghouse of Schenectady, a local nonprofit environmental organization. The paper investigates the history of the organization as well as the effectiveness of its organizational and funding habits. A literary review was conducted to analyze the success of ECOS mission as well as the positive effects ECOS has on society using elements such as environmental education, the importance of early environmental education, how well the organization connects urban residents with the outdoors and the effectiveness of environmental programs. This research promotes the importance of early environmental education on our future generations health and environmental conditions. Additionally, through …
Timber Wars And Aftermath In Northwest Coastal California, Richard Gienger
Timber Wars And Aftermath In Northwest Coastal California, Richard Gienger
Humboldt Journal of Social Relations
Abstract and other info uploaded below
Genetic Population And Evolutionary Dynamics Of The Angel Sharks, Squatina Spp., Cristin Keelin Fitzpatrick
Genetic Population And Evolutionary Dynamics Of The Angel Sharks, Squatina Spp., Cristin Keelin Fitzpatrick
HCNSO Student Theses and Dissertations
Once so abundant as to be called the ‘common’ angelshark, Squatina squatina has been extirpated from nearly the entirety of its historical range, from the eastern North Atlantic, to the Mediterranean Sea [International Union for the Conservation of Nature (IUCN) Red List: Critically Endangered]. The angelshark now only occurs in any abundance in the waters surrounding the Canary Islands. I present the first genetic assessment of the angelshark’s population dynamics and diversity from three locations within the Canary Islands archipelago: Gran Canaria, Tenerife, and Lanzarote. Using a suite of individual mitochondrial genome regions [Control region (CR), NADH dehydrogenase subunit 2 …
Seabird Distribution And Oil & Gas Potential Along The Northern Sea Route, Russia: An Arctic Marine Conservation Case Study, Meghan Kelly
Seabird Distribution And Oil & Gas Potential Along The Northern Sea Route, Russia: An Arctic Marine Conservation Case Study, Meghan Kelly
International Development, Community and Environment (IDCE)
Seabirds are indicator species for the marine environment. Their populations are simultaneously affected by access to food resources and anthropogenic pressures including direct disturbance and habitat degradation associated with industrial development (Parsons et al. 2007). Therefore, using seabird distribution as a policy-relevant indicator for the Arctic marine environment supports an ecosystem based management approach aimed at protecting sensitive habitats from increased offshore oil and gas development.
This research identifies seabird habitat in the Russian Arctic utilizing in situ seabird observations from the Northern Sea Route to create a species distribution model. The spatial location of these areas will be compared …
The Center For Creative Conservation: Fostering Novel Collaborations For Regional Sustainability, Sara J. Breslow, Joshua Lawler, Julian Olden, Spencer Wood
The Center For Creative Conservation: Fostering Novel Collaborations For Regional Sustainability, Sara J. Breslow, Joshua Lawler, Julian Olden, Spencer Wood
Salish Sea Ecosystem Conference
Broad environmental and social forces are affecting our regional ecosystems and impacting the communities who depend on them in diverse ways. Addressing these complex social-ecological challenges necessitates growth in the collective wisdom of society. The Center for Creative Conservation at the University of Washington is addressing this need by promoting innovative solutions to complex environmental problems through fostering collaborations across broadly diverse disciplines, sectors, and communities. We strive to learn and apply best practices of transdisciplinarity, meaning authentically engaging different modes of knowing toward novel and integrated ideas, methods, and applications. For example, we convene medical researchers with ecologists, urban …
Noaa Rockfish Recovery Management And Research In The Salish Sea, Washington, James R. (James Robert) Selleck, Dan Tonnes
Noaa Rockfish Recovery Management And Research In The Salish Sea, Washington, James R. (James Robert) Selleck, Dan Tonnes
Salish Sea Ecosystem Conference
Rockfish are a long-lived species group that provide an important function for the food web dynamics in the Salish Sea, as both a mid-level trophic predator and important prey source, and they hold cultural significance to the region. Rockfish are comprised of over 25 different species locally, and over 60 species from California to Alaska. Many species experienced declines since the 1980’s, and two species are listed in the Salish Sea under ESA as threatened (yelloweye) or endangered (Bocaccio). Different species occupy a range of habitat types, from deep-water rock piles and hard bottom substrate, to nearshore kelp forests and …
Analyzing The Efficiency Of Reforestation Efforts In Regaining Carbon Storage In A Costa Rican Cloud Forest, Elvin Irihamye
Analyzing The Efficiency Of Reforestation Efforts In Regaining Carbon Storage In A Costa Rican Cloud Forest, Elvin Irihamye
Student Research Conference Select Presentations
Forests hold an important place in offsetting carbon emissions, absorbing nearly 40 percent of man-made fossil fuel emissions every year. Over the last 100 years, the effects of deforestation have crippled our forest’s ability to store excess carbon, leading to drastic atmospheric change. Efforts to regrow deforested forests have increased rapidly to address issues like climate change. There is thus a need to analyze current efforts at regaining carbon storage, a critical component to maintaining atmospheric homeostasis. Accordingly, we traveled to the Cloudbridge Nature Reserve in San Gerardo, Costa Rica to aggregate data on the carbon storage capabilities across three …
The Critically Endangered Forest Owlet Heteroglaux Blewitti Is Nested Within The Currently Recognized Athene Clade: A Century-Old Debate Addressed, Pankaj Koparde, Prachi Mehta, Sushma Reddy, Uma Ramakrishnan, Shomita Mukherjee, V. V. Robin
The Critically Endangered Forest Owlet Heteroglaux Blewitti Is Nested Within The Currently Recognized Athene Clade: A Century-Old Debate Addressed, Pankaj Koparde, Prachi Mehta, Sushma Reddy, Uma Ramakrishnan, Shomita Mukherjee, V. V. Robin
Biology: Faculty Publications and Other Works
Range-restricted species generally have specific niche requirements and may often have unique evolutionary histories. Unfortunately, many of these species severely lack basic research, resulting in poor conservation strategies. The phylogenetic relationship of the Critically Endangered Forest Owlet Heteroglaux blewitti has been the subject of a century-old debate. The current classifications based on non-phylogenetic comparisons of morphology place the small owls of Asia into three genera, namely, Athene, Glaucidium, and Heteroglaux. Based on morphological and anatomical data, H. blewitti has been alternatively hypothesized to belong within Athene, Glaucidium, or its own monotypic genus Heteroglaux. …
Intensive Land Use And Conservation Planning At The University Of Central Florida, Chelsea R. Piner
Intensive Land Use And Conservation Planning At The University Of Central Florida, Chelsea R. Piner
The Pegasus Review: UCF Undergraduate Research Journal
Conservation strategies are necessary for cities to meet regional goals of sustainability, but commitments and collaborative efforts among influential stakeholders for economic and developmental growth frequently hinder conservation efforts. This study analyzes how planning documents influence conservation at the University of Central Florida (UCF). I use an inductive method of analysis to explore the stated conservation goals and commitments of UCF's Campus Master Plan. I then compare these objectives with the behaviors of the institution. This research indicates that the absence of collaborative efforts among agencies has resulted in UCF undermining its academic mission. Intensive land-use has sparked global environmental …
Kori Bustards (Ardeotis Kori) Respond To Vegetation Density And Elevation In The Northern Tuli Game Reserve, Botswana L'Abondance De L'Outarde Kori (Ardeotis Kori) Varie Selon La Végétation Et L'Élévation Dans La Réserve De Chasse De Northern Tuli, Botswana, Kathryn R. Mccollum, Larkin A. Powell, Andrei Shyman, Mary Bomberger Brown, John P. Carroll
Kori Bustards (Ardeotis Kori) Respond To Vegetation Density And Elevation In The Northern Tuli Game Reserve, Botswana L'Abondance De L'Outarde Kori (Ardeotis Kori) Varie Selon La Végétation Et L'Élévation Dans La Réserve De Chasse De Northern Tuli, Botswana, Kathryn R. Mccollum, Larkin A. Powell, Andrei Shyman, Mary Bomberger Brown, John P. Carroll
School of Natural Resources: Faculty Publications
Conservation planning and decision making for species of concern requires precise information on abundance and habitat associations. We conducted transect surveys throughout the Northern Tuli Game Reserve, Botswana during June–July 2014 and May– July 2015 to estimate the occupancy and abundance of Kori Bustards (Ardeotis kori). The probability of occupancy of Kori Bustards was greater in areas with tree canopy cover ≤ 50% (ψ2014 = 0.37, SE ± 0.09; ψ2015 = 0.39, SE ± 0.06) when compared with areas with tree canopy cover > 50% (ψ2014 = 0.00, SE ± 0.00; ψ2015 = 0.00, SE ± 0.00). Densities of Kori Bustards …
Factors Influencing Farmers Adoption Of Best Management Practices: A Review And Synthesis, Tingting Liu, Randall J.F. Bruins, Matthew T. Heberling
Factors Influencing Farmers Adoption Of Best Management Practices: A Review And Synthesis, Tingting Liu, Randall J.F. Bruins, Matthew T. Heberling
School of Natural Resources: Faculty Publications
No abstract provided.
Integrating Authentic Scientific Research In A Conservation Course-Based Undergraduate Research Experience, Amanda E. Sorensen, Lucia Corral, Jenny M. Dauer, Joseph J. Fontaine
Integrating Authentic Scientific Research In A Conservation Course-Based Undergraduate Research Experience, Amanda E. Sorensen, Lucia Corral, Jenny M. Dauer, Joseph J. Fontaine
School of Natural Resources: Faculty Publications
No abstract provided.
Knowing Water: Science And The Politics Of Knowledge Production Along The Saw Kill, Carlo Diego Raimondo
Knowing Water: Science And The Politics Of Knowledge Production Along The Saw Kill, Carlo Diego Raimondo
Senior Projects Spring 2018
Beginning with globally oriented ideological constructions of water as resource, this project explores the materiality of water and how it comes to understood within our current geological era. Specifically exploring the politics of scientific knowledge production, I follow the methodological processes of the Bard Water Lab as they monitor water quality of a local stream, exploring how different apparatuses of observation are utilized in order to make a stream a legible and knowable object.
The Effect Of Size On Juvenile Green Sturgeon (Acipenser Medirostris) Behavior Near Water-Diversion Fish Screens, Jamilynn B. Poletto, Dennis E. Cocherell, Natalie Ho, Joseph J. Cech Jr., A. Peter Klimley, Nann A. Fangue
The Effect Of Size On Juvenile Green Sturgeon (Acipenser Medirostris) Behavior Near Water-Diversion Fish Screens, Jamilynn B. Poletto, Dennis E. Cocherell, Natalie Ho, Joseph J. Cech Jr., A. Peter Klimley, Nann A. Fangue
Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications
Anthropogenic water management projects and facilities that alter the local and regional hydrology of riverine environments greatly influence the behavior, physiology, and survival of native fishes. To mitigate for losses of native fishes at these structures, many are outfitted with fish-exclusion screens to reduce entrainment. The effect of fish size and age on behavior near fish screens, however, is largely unknown. Therefore, we tested two size classes of juvenile green sturgeon (Acipenser medirostris; small, early juveniles: 9.2 ± 0.2 cm fork length [FL], 6.9 ± 0.3 g; intermediate juveniles: 18.8 ± 0.2 cm FL, 36.9 ± 0.8 g) …
Step-Selection Functions For Modeling Animal Movement -- Case Study: African Buffalo, Maia Adar
Step-Selection Functions For Modeling Animal Movement -- Case Study: African Buffalo, Maia Adar
CMC Senior Theses
Understanding what factors influence wildlife movement allows landscape planners to make informed decisions that benefit both animals and humans. New quantitative methods, such as step-selection functions, provide valuable objective analyses of wildlife connectivity. This paper provides a framework for creating a step-selection function and demonstrates its use in a case study. The first section provides a general introduction about wildlife connectivity research. The second section explains the math behind the step-selection function using a simple example. The last section gives the results of a step-selection model for African buffalo in the Kavango Zambezi Transfrontier Conservation Area. Buffalo were found to …
A Case-Study Of The African Leopard (Panthera Pardus Pardus) Population On The Nambiti Private Game Reserve, Erica Castaneda
A Case-Study Of The African Leopard (Panthera Pardus Pardus) Population On The Nambiti Private Game Reserve, Erica Castaneda
Honors Undergraduate Theses
The Nambiti Private Game Reserve in KwaZulu-Natal, South Africa is a nature reserve that aids in the conservation of some of the world’s most renown species. This includes members of the "Big Five," which is comprised of the African lion (Panthera leo), the African elephant (Loxidonta africana), the Cape buffalo (Syncerus caffer), the black & white rhinoceroses (Diceros bicornis and Ceratotherium simum, respectively), and the African leopard (Panthera pardus pardus). These animals represent the top five African animals desired by trophy hunters and by tourists hoping to view wildlife (Caro …
Importance Of Habitat Selection For Blue Carbon Projects: Doubtful Additionality In A Seagrass Case Study, Anna Lafratta, Oscar Serrano, Pere Masque, Miguel-Angel Mateo, Milena Fernandes, Sam Gaylard, Paul Lavery
Importance Of Habitat Selection For Blue Carbon Projects: Doubtful Additionality In A Seagrass Case Study, Anna Lafratta, Oscar Serrano, Pere Masque, Miguel-Angel Mateo, Milena Fernandes, Sam Gaylard, Paul Lavery
Research Datasets
The database compiles published data on biogeochemical characteristics (density, organic carbon, stable carbon isotopes and sediment grain size) of soils underneath seagrass meadows in False Bay, South Australia. Pb-210 concentrations of the first 12-20 cm are included. The dataset compiles data for a total of 12 cores, 80-140 cm-long (5 cores with Pb-210 data, 4 cores with sediment grain size).
Consequences Of Drift And Carcass Decomposition For Estimating Sea Turtle Mortality Hotspots, Bianca Santos, David M. Kaplan, Marjorie A.M. Friedrichs, Susan G. Barco, Katherine L. Mansfield, James P. Manning
Consequences Of Drift And Carcass Decomposition For Estimating Sea Turtle Mortality Hotspots, Bianca Santos, David M. Kaplan, Marjorie A.M. Friedrichs, Susan G. Barco, Katherine L. Mansfield, James P. Manning
VIMS Articles
Sea turtle strandings provide important mortality information, yet knowledge of turtle carcass at-sea drift and decomposition characteristics are needed to better understand and manage where these mortalities occur. We used empirical sea turtle carcass decomposition and drift experiments in the Chesapeake Bay, Virginia, USA to estimate probable carcass oceanic drift times and quantify the impact of direct wind forcing on carcass drift. Based on the time period during which free-floating turtle carcasses tethered nearshore were buoyant, we determined that oceanic drift duration of turtle carcasses was highly dependent on water temperature and varied from 2 to 15 days during typical …
Protected Area Planning And Management: Supporting Local Stakeholder Participation With An Asset-Based, Biocultural Approach, Nicole M. Wengerd
Protected Area Planning And Management: Supporting Local Stakeholder Participation With An Asset-Based, Biocultural Approach, Nicole M. Wengerd
Antioch University Full-Text Dissertations & Theses
Given the uncertainties and risks of anthropogenic climate change, the urgency to conserve biodiversity has renewed urgency that has prompted a number of international forums, treaties, and agencies to advocate for the establishment of new and/or expansion of existing protected areas. One of the most broadly recognized efforts to expand the global protected area network can be found in the Aichi Biodiversity Targets, outlined in the Convention on Biological Diversity Strategic Plan for 2011-2020, adopted in 2010 by 196 countries. Target 11 calls for the expansion of terrestrail and inland water areas, as well as coastal marine areas. While the …