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Articles 1201 - 1230 of 52381
Full-Text Articles in Physical Sciences and Mathematics
Brown Thrasher (Toxostoma Rufum) Habitat Preferences In Pine Barrens, Shrublands, And Agricultural Areas In New England, Alec Woolf
Antioch University Dissertations & Theses
Early successional habitat and related species are in decline in the Northeastern United States. One species of shrubland bird that is declining in the northeast is the Brown Thrasher, considered a species of conservation concern in several states such as New Hampshire, Rhode Island, Connecticut, New York, Vermont, and New Jersey. However, few studies have focused on examining Brown Thrasher habitat preferences. The purpose of this study was to evaluate Brown Thrasher associations with early successional habitat adjacent to farmland, within deciduous forests, and within pine barrens. I conducted systematic point count surveys with playback to assess thrasher occupancy and …
Managing Inter-Organizational Trust And Risk Perceptions In Transboundary Fisheries Governance Networks, Evelyn Roozee, Dongkyu Kim, Antonia Sohns, Jasper R. De Vries, Owen Temby, Gordon M. Hickey
Managing Inter-Organizational Trust And Risk Perceptions In Transboundary Fisheries Governance Networks, Evelyn Roozee, Dongkyu Kim, Antonia Sohns, Jasper R. De Vries, Owen Temby, Gordon M. Hickey
School of Earth, Environmental, and Marine Sciences Faculty Publications and Presentations
Transboundary fishery management represents a significant governance challenge that requires ongoing inter-organizational communication, collaboration, and collective action to ensure sustainability. Previous research suggests that different dimensions of perceived risk, trust, and control interact in complex ways to affect inter-organizational collaborative performance, providing an administrative ‘architecture’ that enables partners to share resources, engage in teamwork, resolve conflict, and coordinate tasks and responsibilities while also allaying their concerns about the alliance. However, the extent to which different control mechanisms influence trust and mitigate the perceived risks of collaboration between the diverse organizations involved in transboundary fisheries management remains unclear. This paper presents …
The Biophysical Resilience Capacity Of The Salish Sea’S Tidal Wetlands To Sea Level Rise, Kenna Kuhn
The Biophysical Resilience Capacity Of The Salish Sea’S Tidal Wetlands To Sea Level Rise, Kenna Kuhn
WWU Graduate School Collection
Tidal wetlands offer significant ecosystem services, cultural identity, and economic opportunities, but the impact that projected SLR will have on tidal wetlands in the Salish Sea is not known. In this thesis, I examine the exposure, watershed-scale biophysical resilience capacity, and jurisdictional variation in resilience capacity of the Salish Sea’s tidal wetlands to SLR. I quantify exposure, resilience, and jurisdictional variation using existing spatial data and analysis techniques. I employ a framework for biophysical resilience capacity developed by NOAA and NERRA. This study’s results indicate that there is substantial variation in wetlands area by watershed, from 0 km2 to …
Enhancing The Federal Natural Resource Damage Assessment And Restoration Process Through Bayesian Networks: A Case-Study On The Little Mississinewa River, Indiana, April D. Reed
WWU Graduate School Collection
The Federal Natural Resource Damage Assessment and Restoration (NRDAR) program gives Tribes and certain government agencies the authority to assess injury to natural resources and to pursue and implement compensatory action for any resources lost or injured due to unlawful releases of chemicals into the environment. This study was centered around the development of a Bayesian network (BN) decision support tool tailored to the needs of NRDAR practitioners. The goal was to design a probabilistic BN tool that could lend quantitative insight into natural resource injury. A case study was used to develop and demonstrate the tool’s functionality and propriety …
Life Cycle Assessment Of A Hemp-Based Thermal Insulation Panel, Kara Davis
Life Cycle Assessment Of A Hemp-Based Thermal Insulation Panel, Kara Davis
WWU Graduate School Collection
Buildings have a monumental impact on the environment and the economy and account for about 40% of energy consumption, greenhouse gas emissions, and materials entering the economy. Life cycle assessment (LCA) is a tool for quantitatively evaluating the environmental impacts of a product throughout its life span commonly applied in the building and construction sector. While past efforts have focused on reducing operational energy and carbon, attention has shifted towards embodied energy and carbon as buildings become more energy efficient. This graduate thesis applies the LCA framework and investigates the life cycle environmental impacts of a hemp-based thermal insulation panel …
Legacy And Emerging Contaminants Of Concern In Edible Seaweeds Of The Salish Sea, Holly L. Suther
Legacy And Emerging Contaminants Of Concern In Edible Seaweeds Of The Salish Sea, Holly L. Suther
WWU Graduate School Collection
Seaweed are cultivated and harvested around the world for many uses including food, pharmaceuticals, cosmetics, and fuel. Seaweed aquaculture has been on the rise globally, and interest has been expressed in the United States in furthering the development of the industry. Because seaweed can absorb contaminants into their tissues, an understanding of the risks to consumers is important for informing those consumers and maintaining public support for the industry. Seven species of seaweed that are either wild-harvested or of interest to aquaculture were collected from the Washington State Salish Sea and analyzed for differences in contaminants by season, site, algal …
Biodiversity Of Snow Algae In The North Cascades: Comparing Distinct Microhabitats At Mount Watson., Chloe Beck
Biodiversity Of Snow Algae In The North Cascades: Comparing Distinct Microhabitats At Mount Watson., Chloe Beck
WWU Graduate School Collection
Snow algae, commonly known as pink snow, bloom in high alpine environments globally. Snow algae blooms are on every continent, but the biodiversity within them is under studied. The snow habitat is suitable for algae growth in the spring and summer months when liquid water is available in snowpacks. Diverse terrain in alpine systems can create unique and variable snow habitats as snow melts through the growing season. This study describes the biodiversity of blooms from a site, Mt. Watson, in the North Cascade Mountain Range. The measures of biodiversity assessed include species richness, alpha diversity, beta diversity, and genetic …
Estuarine Wetland Restoration Impacts On Carbon Sequestration In The Oldest Projects Along The West Coast, Jenna Schroeder
Estuarine Wetland Restoration Impacts On Carbon Sequestration In The Oldest Projects Along The West Coast, Jenna Schroeder
WWU Graduate School Collection
Mitigating carbon dioxide’s impact on our climate has become an important area of study. One such mitigation technique includes enhancing and protecting the earth’s natural carbon sinks. Estuarine wetlands, though occupying a small fraction of the Earth’s surface, are recognized for their significant carbon storage capacity. This thesis investigates the long-term impacts of estuarine wetland restoration on carbon sequestration by comparing mature restoration sites (20+ years post-restoration) with natural reference sites along California, Oregon, and Washington coasts. This study included 12 estuarine wetlands that each contained at least one reference site and one restoration site. Carbon sequestration rates were determined …
Estimating Home Range Size And Density Of White-Tailed Deer (Odocoileus Virginianus) In West Virginia, Sarah M. Pesi
Estimating Home Range Size And Density Of White-Tailed Deer (Odocoileus Virginianus) In West Virginia, Sarah M. Pesi
Graduate Theses, Dissertations, and Problem Reports
Big game hunting is an important source of revenue and recreation in the United States. Of big game species, white-tailed deer (Odocileus virginianus) are the most heavily pursued. White-tailed deer are a widespread generalist species, capable of existing at high densities. Hunting is often used as the primary method of managing deer populations, particularly in the eastern United States, where there is a lack of large predators. When populations reach high densities, there can be negative effects on the environment and conflicts with humans. Managers must consider both creating adequate hunting opportunities and reducing negative impacts when managing …
Measuring And Modeling Riparian Wetland Saturated Hydraulic Conductivity, Nutrient Concentrations And Shallow Groundwater Dynamics In An Appalachian Mixed Land Use Catchment, Bidisha Faruque Abesh
Measuring And Modeling Riparian Wetland Saturated Hydraulic Conductivity, Nutrient Concentrations And Shallow Groundwater Dynamics In An Appalachian Mixed Land Use Catchment, Bidisha Faruque Abesh
Graduate Theses, Dissertations, and Problem Reports
The paucity of research on accurate predictions of saturated hydraulic conductivity (Ksat), spatiotemporal analysis of nutrient concentrations relative to water source types (stream and shallow groundwater (SGW)), water flow directions, and land use in riparian wetlands of Appalachian mixed land use catchments underscored the need for this study. Additionally, the lack of SGW flow simulations and stream-SGW interactions using three-dimensional (3D) numerical models (i.e., MODFLOW) in these riparian wetlands further highlighted the research gap. Observed data including soil properties, Ksat, surface water (SW) and SGW levels, and nutrient concentrations, including nitrate (NO3-N), nitrite (NO2-N), ammonium (NH4-N), orthophosphate (PO43-P), total nitrogen …
Assessing Carbon Sequestration Of Mixed Hardwood Forests Through Optimizing Harvesting Strategies And Biomass Utilization For Biochar, Bibek Aryal
Graduate Theses, Dissertations, and Problem Reports
This study investigated the long-term carbon stock of central Appalachian mixed hardwood forests under several harvesting strategies. The strategies were optimized to maximize both long-term carbon sequestration and timber supply during harvest using Mixed-Integer Linear Programming (MILP) models. Clear-cut (CC), Partial cut (PC), and mixed harvesting methods to unharvested conditions over 190 years were studied. Initially, harvested forests showed lower sequestration rates than unharvested forests but eventually surpassed them, with CC showing the highest rates over time. Younger forests, particularly those aged 85 to 130 years, exhibited peak carbon sequestration rates. Regarding carbon stock, the unharvested scenario initially had the …
Ground Tire Rubber As A Sustainable Additive: Transforming Desert Sand Behavior, Nabil Ismael, Dalya Ismael, Asmaa Al-Ahmad
Ground Tire Rubber As A Sustainable Additive: Transforming Desert Sand Behavior, Nabil Ismael, Dalya Ismael, Asmaa Al-Ahmad
Engineering Technology Faculty Publications
Managing waste tires presents a significant challenge globally, particularly in regions experiencing high temperatures and shortage of landfill sites. This issue is affecting countries like Kuwait, where the abundance of waste tires is a major source of environmental and safety risks, particularly during the intensely hot summer months. This extreme heat has sparked numerous fires, leading to substantial air pollution due to thick black smoke. Given the limited disposal options, recycling waste tires and finding practical applications for ground tire rubber (GTR) is essential. To address the challenge, a comprehensive laboratory testing program was conducted, using locally produced rubber aggregates …
Rule-In-Use For Community-Based Springs Management Faces Land Use Pressures: Lesson Learned From Manggarai District, Bernadinus Steni, Hariadi Kartodihardjo, Soeryo Adiwibowo, Ruchyat Deni Djakapermana
Rule-In-Use For Community-Based Springs Management Faces Land Use Pressures: Lesson Learned From Manggarai District, Bernadinus Steni, Hariadi Kartodihardjo, Soeryo Adiwibowo, Ruchyat Deni Djakapermana
The Indonesian Journal of Socio-Legal Studies
The struggle for water is one of the greatest immediate risks of the climate crisis. Therefore, the institutional challenge of water management is increasingly urgent and requires a number of consensuses to succeed, including community-based natural resource management (CBNRM). A key challenge to the traditional consensus for water conservation is the increasing need for land conversion due to population growth, which in turn deflects decision-making power away from traditional institutions towards external decision-makers such as regional governments. Using Ostrom's conceptual framework of rules of use, this research examines shifting spring water management in the context of Kabupaten Manggarai. The paper …
Automated Livestock Practices: Incorporation Emerging Contemporary Technologies Toward Sustainable Livestock In Era Of Smart Cities, Asmaa Elsayed, Mona Mohamed, Florentin Smarandache, Michael Gr. Voskoglou
Automated Livestock Practices: Incorporation Emerging Contemporary Technologies Toward Sustainable Livestock In Era Of Smart Cities, Asmaa Elsayed, Mona Mohamed, Florentin Smarandache, Michael Gr. Voskoglou
Branch Mathematics and Statistics Faculty and Staff Publications
Currently, numerous spheres now face a wider range of needs due to the increasingly competitive and globalized global market. Moreover, digital technologies are necessary for analysis and comprehension in many sectors of contemporary society. For instance, Internet of Things (IoT) has the potential to revolutionize livestock management, including the dairy cattle industry, by providing real-time data and enabling data-driven decisions to improve animal welfare, increase productivity, and promote sustainable farming practices. The main components of IoT-enabled livestock management include sensors, communication systems, data storage, and analysis systems. These components of IoT-enabled livestock management improve animal welfare, increase productivity, and reduce …
Predictive Power Of Wastewater For Nowcasting Infectious Disease Transmission: A Retrospective Case Study Of Five Sewershed Areas In Louisville, Kentucky, Fayette Klaassen, Rochelle H. Holm, Ted Smith, Ted Cohen, Aruni Bhatnagar, Nicolas A. Menzies
Predictive Power Of Wastewater For Nowcasting Infectious Disease Transmission: A Retrospective Case Study Of Five Sewershed Areas In Louisville, Kentucky, Fayette Klaassen, Rochelle H. Holm, Ted Smith, Ted Cohen, Aruni Bhatnagar, Nicolas A. Menzies
Faculty and Staff Scholarship
Background: Epidemiological nowcasting traditionally relies on count surveillance data. The availability and quality of such count data may vary over time, limiting representation of true infections. Wastewater data correlates with traditional surveillance data and may provide additional value for nowcasting disease trends. Methods: We obtained SARS-CoV-2 case, death, wastewater, and serosurvey data for Jefferson County, Kentucky (USA), between August 2020 and March 2021, and parameterized an existing nowcasting model using combinations of these data. We assessed the predictive performance and variability at the sewershed level and compared the effects of adding or replacing wastewater data to case and death reports. …
Microbes Of Biotechnological Importance In Acidic Saline Lakes In The Yilgarn Craton, Western Australia, Katelyn Boase, Talitha Santini, Elizabeth Watkin
Microbes Of Biotechnological Importance In Acidic Saline Lakes In The Yilgarn Craton, Western Australia, Katelyn Boase, Talitha Santini, Elizabeth Watkin
Research outputs 2022 to 2026
Acidic salt lakes are environments that harbor an array of biologically challenging conditions. Through 16S rRNA, 18S rRNA, and ITS amplicon sequencing of eight such lakes across the Yilgarn Craton of Western Australia, we aim to understand the microbial ecology of these lakes with a focus on iron- and sulfur-oxidizing and reducing microorganisms that have theoretical application in biomining industries. In spite of the biological challenges to life in these lakes, the microbial communities were highly diverse. Redundancy analysis of soil samples revealed sulfur, ammonium, organic carbon, and potassium were significant diversities of the microbial community composition. The most abundant …
Development Of A Regional Climate Change Model For Aedes Vigilax And Aedes Camptorhynchus (Diptera: Culicidae) In Perth, Western Australia, Kerry Staples, Peter J. Neville, Steven Richardson, Jacques Oosthuizen
Development Of A Regional Climate Change Model For Aedes Vigilax And Aedes Camptorhynchus (Diptera: Culicidae) In Perth, Western Australia, Kerry Staples, Peter J. Neville, Steven Richardson, Jacques Oosthuizen
Research outputs 2022 to 2026
Mosquito-borne disease is a significant public health issue and within Australia Ross River virus (RRV) is the most reported. This study combines a mechanistic model of mosquito development for two mosquito vectors; Aedes vigilax and Aedes camptorhynchus, with climate projections from three climate models for two Representative Concentration Pathways (RCPs), to examine the possible effects of climate change and sea-level rise on a temperate tidal saltmarsh habitat in Perth, Western Australia. The projections were run under no accretion and accretion scenarios using a known mosquito habitat as a case study. This improves our understanding of the possible implications of sea-level …
Performance Evaluation Of A Dual-Chamber Plant Microbial Fuel Cell Developed For Electricity Generation And Wastewater Treatment, Mahmood Golzarian, M. Ghiasvand, S. Shokri, M. Bahreini, Fatemeh Kazemi
Performance Evaluation Of A Dual-Chamber Plant Microbial Fuel Cell Developed For Electricity Generation And Wastewater Treatment, Mahmood Golzarian, M. Ghiasvand, S. Shokri, M. Bahreini, Fatemeh Kazemi
Research outputs 2022 to 2026
Plant microbial fuel cells (PMFC) have attracted great scholarly attention as a renewable energy source. These cells have three main components: anode, cathode chambers, and a proton exchange membrane. In this study, a dual-chamber plant microbial fuel cell system was designed using Cyperus papyrus and Shewanella oneidensis. The effects of various factors, including the size of the electrodes, the distance between the electrodes, and the inoculation volume of Shewanella oneidensis, on the ability of electricity generation, were scrutinized. The results indicated that increasing the size area of the electrodes from 2 × 2 to 4 × 4 and 6 × …
Investigating The Mobility Of Arsenic In Subarctic Mining Pollution-Affected Peatlands Near Yellowknife, Northwest Territories, Jeremy Leathers
Investigating The Mobility Of Arsenic In Subarctic Mining Pollution-Affected Peatlands Near Yellowknife, Northwest Territories, Jeremy Leathers
Theses and Dissertations (Comprehensive)
Arsenic (As) is a pollutant of global concern that is detrimental to human and environmental health. Between 1948 and 2004, mining operations near Yellowknife, NT released over 20,000 tonnes of As trioxide (As2O3) that continues to persist in the surrounding landscape. Although much effort has been put into studying the chemical forms, spatial distribution, ecological impacts, and environmental cycling of As in the area, more work is needed to determine the controls of As mobility between the terrestrial and aquatic components of the landscape. Soils are known reservoirs of legacy As that can release it downslope …
Incorporating Effects-Based Approaches Into Environmental Impact Assessment To Improve Post-Development Monitoring, Carolyn J M Brown
Incorporating Effects-Based Approaches Into Environmental Impact Assessment To Improve Post-Development Monitoring, Carolyn J M Brown
Theses and Dissertations (Comprehensive)
Over the last 50 years, improvements in design of industrial facilities have significantly reduced environmental impacts. But impacts still occur and monitoring programs are the main mechanism to inform when modification/implementation of mitigation is needed. Informed decisions require adequate baseline (pre-development) data to predict impacts based on the development’s design and to understand when the post-development environment has changed. An adaptive monitoring plan provides an effective way to evaluate monitoring results and allow for proactive responses to environmental change before impacts become difficult or challenging to reverse. Unfortunately, baseline data gathered during an environmental impact assessment (EIA) is often inadequate …
Governing Dynamic Watersheds Under Static Institutions – Examining How Local Governments Respond To Floods And Droughts In The United States, Jonathon R. Loos
Governing Dynamic Watersheds Under Static Institutions – Examining How Local Governments Respond To Floods And Droughts In The United States, Jonathon R. Loos
Dartmouth College Ph.D Dissertations
The U.S. has seen a shift towards decentralized watershed governance in recent decades that has increased the delegation of management responsibilities to local governments and community organizations. This shift has precipitated the emergence of multilevel watershed governance systems (e.g. national, state, regional, local management levels) that are hypothesized to be more adaptive and responsive to local needs. However, multilevel governance systems risk complicating and overburdening the role of local governments within watershed management, and little is known about how local governments address socio-ecological change within multilevel institutions. Working within several U.S. watershed geographies, this dissertation seeks to interrogate theories of …
Trace And Rare Earth Elements Analysis Of Oligocene And Miocene Diamictites In The Cape Roberts Project, Ross Sea, Antarctica, Celina Flores Garza
Trace And Rare Earth Elements Analysis Of Oligocene And Miocene Diamictites In The Cape Roberts Project, Ross Sea, Antarctica, Celina Flores Garza
Theses, Dissertations and Culminating Projects
The West Antarctic Ice Sheet is a major contributor to global sea level rise, yet its origin and dynamics are poorly known. The geochemistry of 35 diamictite samples from the CRP-1 and CPR-2A cores recovered by the Cape Roberts Drilling Project in the Ross Sea, Antarctica is evaluated to understand glacial sedimentation and flow paths during the Oligocene and Miocene, a period of warmer than present climate in the past. The major hypothesis to be tested is if the early Miocene ice sheet advance was the first major West Antarctic ice advance in the Ross Sea. The provenance of older …
Direct Blue 86 Textile Dye Removal From Aqueous Solution Using Rice Husk-Based Adsorbent, M. Zulbahari M. Zua, Muhammad Raza Ul Mustafa, Mohamed Hasnain Isa, Teh Sabariah Binti Abd Manan, Naimah Ibrahim, Rozeana Hj Md Juani, Wida Susanty Hj Suhaili, Asmaal Muizz Sallehhin Bin Hj Mohammad Sultan, Zuliana Binti Hj Nayan
Direct Blue 86 Textile Dye Removal From Aqueous Solution Using Rice Husk-Based Adsorbent, M. Zulbahari M. Zua, Muhammad Raza Ul Mustafa, Mohamed Hasnain Isa, Teh Sabariah Binti Abd Manan, Naimah Ibrahim, Rozeana Hj Md Juani, Wida Susanty Hj Suhaili, Asmaal Muizz Sallehhin Bin Hj Mohammad Sultan, Zuliana Binti Hj Nayan
ASEAN Journal on Science and Technology for Development
Adsorption by activated carbon is an effective method of dye removal. However, due to high production and regeneration costs of activated carbon, various studies on low-cost adsorbents have been conducted. Agricultural waste such as rice husk (RH) is seen to be a good adsorbent for dye removal. Moreover, rice husk is readily available. In this study, rice husk-based adsorbents were prepared by chemical and thermal treatments. Standard curve (colour vs absorbance) for Direct Blue 86 (DB 86) was prepared to determine the concentration of dye before and after adsorption. The adsorption potential of the adsorbent for textile dye DB 86 …
The Impact Of Environmental Policy On Renewable Energy Innovation: A Systematic Literature Review And Research Directions, Hiva Rastegar, Gabriel Eweje, Aymen Sajjad
The Impact Of Environmental Policy On Renewable Energy Innovation: A Systematic Literature Review And Research Directions, Hiva Rastegar, Gabriel Eweje, Aymen Sajjad
Research outputs 2022 to 2026
Renewable energy innovations are imperative to tackle the climate change crisis. However, there is a gap in the literature regarding the effectiveness of environmental policies in promoting renewable energy innovations. To bridge this gap, we have adopted a systematic literature review process covering the period from 2005 to 2023. We identified and analysed 29 articles in our final sample. Further, we employ two levels of analysis (individual-policy and policy-mix levels) for analysing the extant research. Our findings show that fiscal incentives and emissions trading policies such as the European Union (EU) Emissions Trading System (ETS) consistently promote renewable energy innovations. …
Understanding The Impact Of Environmental Impact Assessment Research On Policy And Practice, Angus Morrison-Saunders, Annette Nykiel, Nicole Atkins
Understanding The Impact Of Environmental Impact Assessment Research On Policy And Practice, Angus Morrison-Saunders, Annette Nykiel, Nicole Atkins
Research outputs 2022 to 2026
There is an enormous and ever-growing body of environmental impact assessment (EIA) research, much of which is grounded in practice or seeks to advance it. In this paper we show how the impact of EIA research on policy and practice might be conceptualised and how to set about evidencing it. A framework is developed through literature review to account for impact in four areas pertaining to instrumental impact, conceptual impact, capacity building and knowledge brokerage and co-production. Methods for implementing the framework include citations within policy documents along with content analysis to determine influence and interviews or surveys with policy …
Analysis Of Element Yield, Bacterial Community Structure And The Impact Of Carbon Sources For Bioleaching Rare Earth Elements From High Grade Monazite, Melissa K. Corbett, April Gifford, Nick Fimognari, Elizabeth L. J. Watkin
Analysis Of Element Yield, Bacterial Community Structure And The Impact Of Carbon Sources For Bioleaching Rare Earth Elements From High Grade Monazite, Melissa K. Corbett, April Gifford, Nick Fimognari, Elizabeth L. J. Watkin
Research outputs 2022 to 2026
Rare earth element (REE) recovery from waste streams, mine tailings or recyclable components using bioleaching is gaining traction due to the shortage and security of REE supply as well as the environmental problems that occur from processing and refining. Four heterotrophic microbial species with known phosphate solubilizing capabilities were evaluated for their ability to leach REE from a high-grade monazite when provided with either galactose, fructose or maltose. Supplying fructose resulted in the greatest amount of REE leached from the ore due to the largest amount of organic acid produced. Gluconic acid was the dominant organic acid identified produced by …
Region-Specific Drivers Cause Low Organic Carbon Stocks And Sequestration Rates In The Saltmarsh Soils Of Southern Scandinavia, Carmen Leiva-Dueñas, Anna E. L. Graversen, Gary T. Banta, Jeppe N. Hansen, Marie L. K. Schrøter, Pere Masqué, Marianne Holmer, Dorte Krause-Jensen
Region-Specific Drivers Cause Low Organic Carbon Stocks And Sequestration Rates In The Saltmarsh Soils Of Southern Scandinavia, Carmen Leiva-Dueñas, Anna E. L. Graversen, Gary T. Banta, Jeppe N. Hansen, Marie L. K. Schrøter, Pere Masqué, Marianne Holmer, Dorte Krause-Jensen
Research outputs 2022 to 2026
Saltmarshes are known for their ability to act as effective sinks of organic carbon (OC) and their protection and restoration could potentially slow down the pace of global warming. However, regional estimates of saltmarsh OC storage are often missing, including for the Nordic region. To address this knowledge gap, we assessed OC storage and accumulation rates in 17 saltmarshes distributed along the Danish coasts and investigated the main drivers of soil OC storage. Danish saltmarshes store a median of 10 kg OC m−2 (interquartile range, IQR: 13.5–7.6) in the top meter and sequester 31.5 g OC m−2 yr−1 (IQR: 41.6–15.7). …
Trends In Monitoring Of Australia’S Threatened Birds (1990–2020): Much Improved But Still Inadequate, Simon J. Verdon, Robert A. Davis, Ayesha Tulloch, Sarah M. Legge, David M. Watson, John C. Z. Woinarski, G. Barry Baker, Joris Driessen, Hayley M. Geyle, Hugh Possingham, Stephen T. Garnett
Trends In Monitoring Of Australia’S Threatened Birds (1990–2020): Much Improved But Still Inadequate, Simon J. Verdon, Robert A. Davis, Ayesha Tulloch, Sarah M. Legge, David M. Watson, John C. Z. Woinarski, G. Barry Baker, Joris Driessen, Hayley M. Geyle, Hugh Possingham, Stephen T. Garnett
Research outputs 2022 to 2026
Monitoring is vital to conservation, enabling conservation scientists to detect population declines, identify threats and measure the effectiveness of interventions. However, not all threatened taxa are monitored, monitoring quality is variable, and the various components of monitoring are likely to differ in their rates of improvement over time. We assessed the presence of monitoring and monitoring quality, using a range of metrics, for all Australia’s threatened bird taxa from 1990 to 2020 (four assessments spanning 30 years). We used our assessments to understand decadal trends in the number of taxa monitored; monitoring quality; and the groups that conduct monitoring. The …
Consequences Of Group-Based Misperceptions Of Climate Concern For Efficacy And Action, Zoe Leviston, Tanvi Nangrani, Samantha K. Stanley, Iain Walker
Consequences Of Group-Based Misperceptions Of Climate Concern For Efficacy And Action, Zoe Leviston, Tanvi Nangrani, Samantha K. Stanley, Iain Walker
Research outputs 2022 to 2026
People tend to underestimate others’ environmental values, including when judging the values of minority-status groups. Using a large national sample (N = 5110), we test whether these misperceptions extend to concern about climate change in Australia, and differ depending on immigrant status, ethnicity, and where one is located (i.e., in or outside capital cities). We also examine the consequences of misperceptions for self-efficacy and pro-environmental behaviour. We find personal climate concern is high, but perceptions of others’ concern is lower. Immigrants and Australian-born participants have similarly high concern, but both groups underestimate how concerned immigrants are. Southern-Central-Asian identifiers are the …
Experimental Investigation On Hydrogen-Rich Syngas Production Via Gasification Of Common Wood Pellet In Bangladesh: Optimization, Mathematical Modeling, And Techno-Econo-Environmental Feasibility Studies, Md Sanowar Hossain, Mujahidul Islam Riad, Showmitro Bhowmik, Barun K. Das
Experimental Investigation On Hydrogen-Rich Syngas Production Via Gasification Of Common Wood Pellet In Bangladesh: Optimization, Mathematical Modeling, And Techno-Econo-Environmental Feasibility Studies, Md Sanowar Hossain, Mujahidul Islam Riad, Showmitro Bhowmik, Barun K. Das
Research outputs 2022 to 2026
Since hydrogen produces no emissions, there is increasing interest in its production throughout the world as the need for clean and sustainable energy grows. Bangladesh has an abundance of biomass, particularly wood pellets, which presents a huge opportunity for gasification to produce hydrogen. Gasification of mahogany (Swietenia mahagoni-SM) and mango (Mangifera indica-MI) wood is performed in a downdraft gasifier to evaluate the impact of particle size, equivalence ratio, and temperature on hydrogen gas composition and gasifier performance. Under the optimal conditions determined by central composite design-response surface methodology (CCD-RSM) optimization, gasification of SM and MI wood can greatly increase hydrogen …