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Climate change

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Articles 811 - 840 of 1680

Full-Text Articles in Physical Sciences and Mathematics

Juvenile Rockfish Show Resilience To Co2-Acidification And Hypoxia Across Multiple Biological Scales, Brittany E. Davis, Lisa M. Komoroske, Matthew J. Hansen, Jamilynn B. Poletto, Emily N. Perry, Nathan A. Miller, Sean M. Ehlman, Sarah G. Wheeler, Andrew Sih, Anne E. Todgham, Nann A. Fangue Jan 2018

Juvenile Rockfish Show Resilience To Co2-Acidification And Hypoxia Across Multiple Biological Scales, Brittany E. Davis, Lisa M. Komoroske, Matthew J. Hansen, Jamilynn B. Poletto, Emily N. Perry, Nathan A. Miller, Sean M. Ehlman, Sarah G. Wheeler, Andrew Sih, Anne E. Todgham, Nann A. Fangue

School of Natural Resources: Faculty Publications

California’s coastal ecosystems are forecasted to undergo shifting ocean conditions due to climate change, some of which may negatively impact recreational and commercial fish populations. To understand if fish populations have the capacity to respond to multiple stressors, it is critical to examine interactive effects across multiple biological scales, from cellular metabolism to species interactions. This study examined the effects of CO2-acidification and hypoxia on two naturally cooccurring species, juvenile rockfish (genus Sebastes) and a known predator, cabezon (Scorpaenichthys marmoratus). Fishes were exposed to two PCO2 levels at two dissolved oxygen (DO) levels: ~600 …


The Perpetual State Of Emergency That Sacrifices Protected Areas In A Changing Climate, Dirac Twidwell, Carissa L. Wonkka, Christine H. Bielski, Craig R. Allen, David G. Angeler, Jacob Drozda, Ahjond S. Garmestani, Julia Johnson, Larkin A. Powell, Caleb P. Roberts Jan 2018

The Perpetual State Of Emergency That Sacrifices Protected Areas In A Changing Climate, Dirac Twidwell, Carissa L. Wonkka, Christine H. Bielski, Craig R. Allen, David G. Angeler, Jacob Drozda, Ahjond S. Garmestani, Julia Johnson, Larkin A. Powell, Caleb P. Roberts

School of Natural Resources: Faculty Publications

A modern challenge for conservation biology is to assess the consequences of policies that adhere to assumptions of stationarity (e.g., historic norms) in an era of global environmental change. Such policies may result in unexpected and surprising levels of mitigation given future climate-change trajectories, especially as agriculture looks to protected areas to buffer against production losses during periods of environmental extremes. We assessed the potential impact of climate-change scenarios on the rates at which grasslands enrolled in the Conservation Reserve Program (CRP) are authorized for emergency harvesting (i.e., biomass removal) for agricultural use, which can occur when precipitation for the …


Climate Change, Cattle, And The Challenge Of Sustainability In A Telecoupled System In Africa, Tara S. Easter, Alexander K. Killion, Neil H. Carter Jan 2018

Climate Change, Cattle, And The Challenge Of Sustainability In A Telecoupled System In Africa, Tara S. Easter, Alexander K. Killion, Neil H. Carter

Ecology, Evolution, and Behavior

Information, energy, and materials are flowing over greater distances than in the past, changing the structure and feedbacks within and across coupled human and natural systems worldwide. The telecoupling framework was recently developed to understand the feedbacks and multidirectional flows characterizing social and environmental interactions between distant systems. We extend the application of the telecoupling framework to illustrate how flows in beef affect and are affected by social-ecological processes occurring between distant systems in Africa, and how those dynamics will likely change over the next few decades because of climate-induced shifts in a major bovine disease, trypanosomosis. The disease is …


Emotions Predict Policy Support: Why It Matters How People Feel About Climate Change, Susie Wang, Zoe Leviston Jan 2018

Emotions Predict Policy Support: Why It Matters How People Feel About Climate Change, Susie Wang, Zoe Leviston

Research outputs 2014 to 2021

Current research shows that emotions can motivate climate engagement and action, but precisely how has received scant attention. We propose that strong emotional responses to climate change result from perceiving one's “objects of care” as threatened by climate change, which motivates caring about climate change itself, and in turn predicts behaviour. In two studies, we find that climate scientists (N = 44) experience greater emotional intensity about climate change than do students (N = 94) and the general population (N = 205), and that patterns of emotional responses explain differences in support for climate change policy. Scientists tied their emotional …


President Trump Tweets Supreme Leader Kim Jong-Un On Nuclear Weapons: A Comparison With Climate Change, David E. Allen, Michael Mcaleer Jan 2018

President Trump Tweets Supreme Leader Kim Jong-Un On Nuclear Weapons: A Comparison With Climate Change, David E. Allen, Michael Mcaleer

Research outputs 2014 to 2021

A set of 125 tweets about North Korea's Supreme Leader Kim Jong-Un by President Trump from 2013 to 2018 are analysed by means of the data mining technique, sentiment analysis. The intention is to explore the contents and sentiments of the messages contained, the degree to which they differ, and their implications about President Trump's understanding and approach to international diplomacy. The results suggest a predominantly positive emotion in relation to tweets about North Korea, despite the use of questionable nicknames such as "Little Rocket Man". A comparison is made between the tweets on North Korea and climate change, madefrom …


Temperature-Related Mortality Impacts Under And Beyond Paris Agreement Climate Change Scenarios, Ana Maria Vicedo-Cabrera, Yuming Guo, Francesco Sera, Veronika Huber, Carl Friedrich Schleussner, Dann Mitchell, Shilu Tong, Micheline De Sousa Zanotti Stagliorio Coelho, Paulo Hilário Nascimento Nascimento Saldiva, Éric Lavigne, Patricia Matus Correa, Nicolas Valdes Ortega, Haidong Kan, Samuel Osorio, Jan Kyselý, Aleš Urban, Jouni J.K. Jaakkola, Niilo R.I. Ryti, Mathilde Pascal, Patrick J. Goodman, Ariana Zeka, Paola Michelozzi, Matteo Scortichini, Masahiro Hashizume, Yasushi Honda, Magali Hurtado-Díaz, Julio Gonzalez Cruz, Xerxes T. Seposo, Ho Kim, Aurelio Tobías, Carmen Iñiguez Fernández, Bertil Forsberg, Daniel Oudin Åström, Martina S. Ragettli, Martin Röösli, Yueleon Guo, Chang-Fu Wu, Antonella Zanobetti, Joel D. Schwartz, Michelle L. Bell, Tranngoc Ngoc Dang, Dung Do Van, C. Heaviside, Sotiris Vardoulakis, Shakoor Hajat, Andrew Haines, London School Of Hygiene & Tropical Medicine, London, United Kingdom London School Of Hygiene & Tropical Medicine, London, United Kingdom, Ben G. Armstrong, Kristie L. Ebi, Antonio Gasparrini Jan 2018

Temperature-Related Mortality Impacts Under And Beyond Paris Agreement Climate Change Scenarios, Ana Maria Vicedo-Cabrera, Yuming Guo, Francesco Sera, Veronika Huber, Carl Friedrich Schleussner, Dann Mitchell, Shilu Tong, Micheline De Sousa Zanotti Stagliorio Coelho, Paulo Hilário Nascimento Nascimento Saldiva, Éric Lavigne, Patricia Matus Correa, Nicolas Valdes Ortega, Haidong Kan, Samuel Osorio, Jan Kyselý, Aleš Urban, Jouni J.K. Jaakkola, Niilo R.I. Ryti, Mathilde Pascal, Patrick J. Goodman, Ariana Zeka, Paola Michelozzi, Matteo Scortichini, Masahiro Hashizume, Yasushi Honda, Magali Hurtado-Díaz, Julio Gonzalez Cruz, Xerxes T. Seposo, Ho Kim, Aurelio Tobías, Carmen Iñiguez Fernández, Bertil Forsberg, Daniel Oudin Åström, Martina S. Ragettli, Martin Röösli, Yueleon Guo, Chang-Fu Wu, Antonella Zanobetti, Joel D. Schwartz, Michelle L. Bell, Tranngoc Ngoc Dang, Dung Do Van, C. Heaviside, Sotiris Vardoulakis, Shakoor Hajat, Andrew Haines, London School Of Hygiene & Tropical Medicine, London, United Kingdom London School Of Hygiene & Tropical Medicine, London, United Kingdom, Ben G. Armstrong, Kristie L. Ebi, Antonio Gasparrini

Articles

The Paris Agreement binds all nations to undertake ambitious efforts to combat climate change, with the commitment to Bhold warming well below 2 °C in global mean temperature (GMT), relative to pre-industrial levels, and to pursue efforts to limit warming to 1.5 °C^. The 1.5 °C limit constitutes an ambitious goal for which greater evidence on its benefits for health would help guide policy and potentially increase the motivation for action. Here we contribute to this gap with an assessment on the potential health benefits, in terms of reductions in temperature-related mortality, derived from the compliance to the agreed temperature …


Climate Change Challenges For Land Conservation: Rethinking Conservation Easements, Strategies, And Tools, W. William Weeks, Jessica Owley, Federico Cheever, Adena R. Rissman, M. Rebecca Shaw, Barton H. Thompson Jan 2018

Climate Change Challenges For Land Conservation: Rethinking Conservation Easements, Strategies, And Tools, W. William Weeks, Jessica Owley, Federico Cheever, Adena R. Rissman, M. Rebecca Shaw, Barton H. Thompson

Articles by Maurer Faculty

Climate change has significant consequences for land conservation. Government agencies and nonprofit land trusts heavily rely on perpetual conservation easements. However, climate change and other dynamic landscape changes raise questions about the effectiveness and adaptability of permanent conservation instruments like conservation easements. Building upon a study of 269 conservation easements and interviews with seventy conservation-easement professionals in six different states, we examine the adaptability of conservation easements to climate change. We outline four potential approaches to enhance conservation outcomes under climate change: (1) shift land-acquisition priorities to account for potential climate-change impacts; (2) consider conservation tools other than perpetual conservation …


Extreme Smoke Events: Climate Change And Human Health In Western Montana, Sarah Luth Jan 2018

Extreme Smoke Events: Climate Change And Human Health In Western Montana, Sarah Luth

Undergraduate Theses, Professional Papers, and Capstone Artifacts

Abstract not available.


Climate Change And Eutrophication: A Short Review, Mohammad Nazari-Sharabian, Sajjad Ahmad, Moses Karakouzian Jan 2018

Climate Change And Eutrophication: A Short Review, Mohammad Nazari-Sharabian, Sajjad Ahmad, Moses Karakouzian

Civil and Environmental Engineering and Construction Faculty Research

Water resources are vital not only for human beings but essentially all ecosystems. Human health is at risk if clean drinking water becomes contaminated. Water is also essential for agriculture, manufacturing, energy production and other diverse uses. Therefore, a changing climate and its potential effects put more pressure on water resources. Climate change may cause increased water demand as a result of rising temperatures and evaporation while decreasing water availability. On the other hand, extreme events as a result of climate change can increase surface runoff and flooding, deteriorating water quality as well. One effect is water eutrophication, which occurs …


Quantifying Excess Deaths Related To Heatwaves Under Climate Change Scenarios: A Multicountry Time Series Modelling Study, Yuming Guo, Antonio Gasparrini, Shanshan Li, Francesco Sera, Ana Maria Vicedo-Cabrera, Micheline De Sousa Zanotti Stagliorio Coêlho, Paulo Hilário Nascimento Nascimento Saldiva, Éric Lavigne, Benjawan Tawatsupa, Kornwipa Punnasiri, Ala Overcenco, Patricia Matus Correa, Nicolas Valdes Ortega, Haidong Kan, Samuel Osorio, Jouni J.K. Jaakkola, Niilo R.I. Ryti, Patrick J. Goodman, Ariana Zeka, Paola Michelozzi, Matteo Scortichini, Masahiro Hashizume, Honda, Yasushi Honda, Yasushi, Xerxes T. Seposo, Ho Young Kim, Aurelio Tobías, Carmen Iñiguez Fernández, Bertil Forsberg, Daniel Oudin Åström, Guo, Yue Leon Guo, Yue Leon, Bing Yu Chen, Antonella Zanobetti, Joel D. Schwartz, Tranngoc Ngoc Dang, Dung Do Van, Michelle L. Bell, Ben G. Armstrong, Ebi, Kristie L. Ebi, Kristie L., Shilu Tong Jan 2018

Quantifying Excess Deaths Related To Heatwaves Under Climate Change Scenarios: A Multicountry Time Series Modelling Study, Yuming Guo, Antonio Gasparrini, Shanshan Li, Francesco Sera, Ana Maria Vicedo-Cabrera, Micheline De Sousa Zanotti Stagliorio Coêlho, Paulo Hilário Nascimento Nascimento Saldiva, Éric Lavigne, Benjawan Tawatsupa, Kornwipa Punnasiri, Ala Overcenco, Patricia Matus Correa, Nicolas Valdes Ortega, Haidong Kan, Samuel Osorio, Jouni J.K. Jaakkola, Niilo R.I. Ryti, Patrick J. Goodman, Ariana Zeka, Paola Michelozzi, Matteo Scortichini, Masahiro Hashizume, Honda, Yasushi Honda, Yasushi, Xerxes T. Seposo, Ho Young Kim, Aurelio Tobías, Carmen Iñiguez Fernández, Bertil Forsberg, Daniel Oudin Åström, Guo, Yue Leon Guo, Yue Leon, Bing Yu Chen, Antonella Zanobetti, Joel D. Schwartz, Tranngoc Ngoc Dang, Dung Do Van, Michelle L. Bell, Ben G. Armstrong, Ebi, Kristie L. Ebi, Kristie L., Shilu Tong

Articles

Background: Heatwaves are a critical public health problem. There will be an increase in the frequency and severity of heatwaves under changing climate. However, evidence about the impacts of climate change on heatwave-related mortality at a global scale is limited. Methods and findings: We collected historical daily time series of mean temperature and mortality for all causes or nonexternal causes, in periods ranging from January 1, 1984, to December 31, 2015, in 412 communities within 20 countries/regions. We estimated heatwave–mortality associations through a two-stage time series design. Current and future daily mean temperature series were projected under four scenarios of …


Habitat Characteristics Provide Insights Of Carbon Storage In Seagrass Meadows, Inés Mazarrasa, Jimena Samper-Villarreal, Oscar Serrano, Paul S. Lavery, Catherine E. Lovelock, Núrià N. Marbà, Carlos M. Duarte, Jorge A. Cortés Jan 2018

Habitat Characteristics Provide Insights Of Carbon Storage In Seagrass Meadows, Inés Mazarrasa, Jimena Samper-Villarreal, Oscar Serrano, Paul S. Lavery, Catherine E. Lovelock, Núrià N. Marbà, Carlos M. Duarte, Jorge A. Cortés

Research outputs 2014 to 2021

Seagrass meadows provide multiple ecosystem services, yet they are among the most threatened ecosystems on earth. Because of their role as carbon sinks, protection and restoration of seagrass meadows contribute to climate change mitigation. Blue Carbon strategies aim to enhance CO2 sequestration and avoid greenhouse gasses emissions through the management of coastal vegetated ecosystems, including seagrass meadows. The implementation of Blue Carbon strategies requires a good understanding of the habitat characteristics that influence Corg sequestration. Here, we review the existing knowledge on Blue Carbon research in seagrass meadows to identify the key habitat characteristics that influence Corg sequestration in seagrass …


Global Sea-Level Budget 1993-Present, Wcrp Global Sea Level Budget Group, Benjamin Hamlington Jan 2018

Global Sea-Level Budget 1993-Present, Wcrp Global Sea Level Budget Group, Benjamin Hamlington

CCPO Publications

Global mean sea level is an integral of changes occurring in the climate system in response to unforced climate variability as well as natural and anthropogenic forcing factors. Its temporal evolution allows changes (e.g.,acceleration) to be detected in one or more components. Study of the sea-level budget provides constraints on missing or poorly known contributions, such as the unsurveyed deep ocean or the still uncertain land water component. In the context of the World Climate Research Programme Grand Challenge entitled "Regional Sea Level and Coastal Impacts", an international effort involving the sea-level community worldwide has been recently initiated with the …


Climate-Change-Driven Accelerated Sea-Level Rise Detected In The Altimeter Era, R. S. Nerem, B. D. Beckley, J. T. Fasullo, B. D. Hamlington, D. Masters, G. T. Mitchum Jan 2018

Climate-Change-Driven Accelerated Sea-Level Rise Detected In The Altimeter Era, R. S. Nerem, B. D. Beckley, J. T. Fasullo, B. D. Hamlington, D. Masters, G. T. Mitchum

CCPO Publications

Using a 25-y time series of precision satellite altimeter data from TOPEX/Poseidon, Jason-1, Jason-2, and Jason-3, we estimate the climate-change-driven acceleration of global mean sea level over the last 25 y to be 0.084 ± 0.025 mm/y2. Coupled with the average climate-change-driven rate of sea level rise over these same 25 y of 2.9 mm/y, simple extrapolation of the quadratic implies global mean sea level could rise 65 ± 12 cm by 2100 compared with 2005, roughly in agreement with the Intergovernmental Panel on Climate Change (IPCC) 5th Assessment Report (AR5) model projections.


Institutionalizing Resilience In Us Universities: Prospects, Opportunities, And Models, Morris Foster, James O'Donnell, Mark Luckenbach, Elizabeth Andrews, Emily Steinhilber, John Wells, Mark Davis Jan 2018

Institutionalizing Resilience In Us Universities: Prospects, Opportunities, And Models, Morris Foster, James O'Donnell, Mark Luckenbach, Elizabeth Andrews, Emily Steinhilber, John Wells, Mark Davis

ODU Articles

[From Introduction]

The United States is taking a largely region-specific approach to addressing challenges posed by climate change, in contrast with national and international approaches in most of the rest of the world. In locations such as Hampton Roads, New Orleans, and coastal Connecticut, the impacts of climate change tend to be addressed as they become locally evident rather than as part of a larger anticipatory national plan. Given that regional focus, universities can play a unique role in how the United States responds to the challenges of a changing climate. Universities can be knowledge brokers positioned outside or across …


Social Science Perspectives On Drivers Of And Responses To Global, Andrew K. Jorgenson, Shirley Fiske, Klaus Hubacek, Jia Li, Tom Mcgovern, Torben Rick, Juliet B. Schor, William Solecki, Richard York, Ariela Zycherman Jan 2018

Social Science Perspectives On Drivers Of And Responses To Global, Andrew K. Jorgenson, Shirley Fiske, Klaus Hubacek, Jia Li, Tom Mcgovern, Torben Rick, Juliet B. Schor, William Solecki, Richard York, Ariela Zycherman

Publications and Research

This article provides a review of recent anthropological, archeological, geographical, and sociological research on anthropogenic drivers of climate change, with a particular focus on drivers of carbon emissions, mitigation and adaptation. The four disciplines emphasize cultural, economic, geographic, historical, political, and social‐structural factors to be important drivers of and responses to climate change. Each of these disciplines has unique perspectives and makes noteworthy contributions to our shared understanding of anthropogenic drivers, but they also complement one another and contribute to integrated, multidisciplinary frameworks. The article begins with discussions of research on temporal dimensions of human drivers of carbon emissions, highlighting …


Urban Areas In Coastal Zones, Richard C. Dawson, M. Shah Alam Khan, Vivien Gornitz, Maria Fernanda Lemos, Larry Atkinson, Julie Pullen, Juan Camilo Osorio, Lindsay Usher, Cynthia Rosenzweig (Ed.), William Solecki (Ed.), Patricia Romero-Lankao (Ed.), Shagun Mehrotra (Ed.), Shobhakar Dhakal (Ed.), Somayya Ali Ibrahim (Ed.) Jan 2018

Urban Areas In Coastal Zones, Richard C. Dawson, M. Shah Alam Khan, Vivien Gornitz, Maria Fernanda Lemos, Larry Atkinson, Julie Pullen, Juan Camilo Osorio, Lindsay Usher, Cynthia Rosenzweig (Ed.), William Solecki (Ed.), Patricia Romero-Lankao (Ed.), Shagun Mehrotra (Ed.), Shobhakar Dhakal (Ed.), Somayya Ali Ibrahim (Ed.)

CCPO Publications

[First Paragraph] Coastal cities have been subjected to extreme weather events since the onset of urbanization. Climatic change, in particular sea level rise, coupled with rapid urban development are amplifying the challenge of managing risks to coastal cities. Moreover, urban expansion and changes and intensification in land use further pressure sensitive coastal environments through pollution and habitat loss.


Range Expansion Of Tick Disease Vectors In North America: Implications For Spread Of Tick-Borne Disease, Daniel E. Sonenshine Jan 2018

Range Expansion Of Tick Disease Vectors In North America: Implications For Spread Of Tick-Borne Disease, Daniel E. Sonenshine

Biological Sciences Faculty Publications

Ticks are the major vectors of most disease-causing agents to humans, companion animals and wildlife. Moreover, ticks transmit a greater variety of pathogenic agents than any other blood-feeding arthropod. Ticks have been expanding their geographic ranges in recent decades largely due to climate change. Furthermore, tick populations in many areas of their past and even newly established localities have increased in abundance. These dynamic changes present new and increasing severe public health threats to humans, livestock and companion animals in areas where they were previously unknown or were considered to be of minor importance. Here in this review, the geographic …


Electricity Markets And The Social Project Of Decarbonization, Shelley Welton Jan 2018

Electricity Markets And The Social Project Of Decarbonization, Shelley Welton

All Faculty Scholarship

Decarbonization is the process of converting our economy from one that runs predominantly on energy derived from fossil fuels to one that runs almost exclusively on clean, carbon-free energy. If pursued on the scale that experts believe necessary to prevent dangerous climate change, the infrastructure changes required to decarbonize the United States will have significant social and cultural implications. States aggressively pursuing decarbonization have adopted policies reflecting their understanding that decarbonization is a social project implicating numerous value choices. Various state decarbonization policies combine the aim of decarbonization with job promotion, economic development, income redistribution, urban revitalization, open-space preservation, and …


Long-Term Changes In Extreme Air Pollution Meteorology And Implications For Air Quality, Pei Hou Jan 2018

Long-Term Changes In Extreme Air Pollution Meteorology And Implications For Air Quality, Pei Hou

Dissertations, Master's Theses and Master's Reports

Extreme air pollution meteorology, such as heat waves, temperature inversions, and atmospheric stagnation episodes, can significantly affect air quality. In this study, we analyze their long-term trends and the potential impacts on air quality. The significant increasing trends for the occurrences of extreme meteorological events in 1951-2010 are identified with the reanalysis data, especially over the continental regions. A statistical analysis combining air quality data and meteorological data indicates strong sensitivities of air quality, including both average air pollutant concentrations and high pollution episodes, to extreme meteorological events. Results also show significant seasonal and spatial variations in the sensitivity of …


Going Negative: The Next Horizon In Climate Engineering Law, Tracy Hester, Michael B. Gerrard Jan 2018

Going Negative: The Next Horizon In Climate Engineering Law, Tracy Hester, Michael B. Gerrard

Faculty Scholarship

As the global community struggles to turn the Paris Agreement’s commitments into meaningful emission reductions and the United States turbulently reverses its climate policies, the potential role of “negative emissions technologies” and other climate engineering approaches is drawing increasingly serious attention. These technologies are engineering on the grandest scale: climate engineering seeks to offset the effects of anthropogenic climate change by either altering the solar radiation reaching the earth’s surface or changing the composition of the atmosphere itself. Specifically, negative emissions technologies would directly remove greenhouse gases (GHGs) from the ambient air and help to remove accumulated atmospheric carbon dioxide …


Mitigating Projected Impacts Of Climate Change And Building Resiliency Through Permaculture: A Community ‘Bee Inspired Gardens’ Movement In The Desert Southwest, Usa, Roslynn Brain, Jeffrey Adams, Jeremy Lynch Dec 2017

Mitigating Projected Impacts Of Climate Change And Building Resiliency Through Permaculture: A Community ‘Bee Inspired Gardens’ Movement In The Desert Southwest, Usa, Roslynn Brain, Jeffrey Adams, Jeremy Lynch

Environment and Society Faculty Publications

Permaculture, an integrative design process creating resilient and productive landscapes and communities, can serve as a useful mitigation tool for projected climate change impacts. In the United States, the desert southwest town of Moab, Utah, has employed permaculture design in a community initiative called ‘Bee Inspired Gardens.’ This initiative has harnessed social capital to create resilient landscapes demonstrating pollinator health, water conservation, and perennial food and forage systems. Bee Inspired Gardens have been designed at a University, middle school, charter school, Bureau of Land Management property, hotel, public park, environmental education non-profit, and more. Community members are now harvesting fruit …


Comparison Of Ecosystem Processes In A Woodland And Prairie Pond With Different Hydroperiods, Daniel J. Hornbach, Mark C. Hove, Mira W. Ensley-Field, Matthew R. Glasenapp, Ian A. Goodbar, J. Douglas Harman, Benjamin D. Huber, Emily A. Kangas, Kira X. Liu, Molly Stark-Ragsdale, Long K. Tran Dec 2017

Comparison Of Ecosystem Processes In A Woodland And Prairie Pond With Different Hydroperiods, Daniel J. Hornbach, Mark C. Hove, Mira W. Ensley-Field, Matthew R. Glasenapp, Ian A. Goodbar, J. Douglas Harman, Benjamin D. Huber, Emily A. Kangas, Kira X. Liu, Molly Stark-Ragsdale, Long K. Tran

Faculty Publications

Shallow lakes and ponds constitute a significant number of water bodies worldwide. Many are heterotrophic, indicating that they are likely net contributors to global carbon cycling. Climate change is likely to have important impacts on these waterbodies. In this study, we examined two small Minnesota ponds; a permanent woodland pond and a temporary prairie pond. The woodland pond had lower levels of phosphorus and phytoplankton than the prairie pond. Using the open water oxygen method, we found the prairie pond typically had a higher level of gross primary production (GPP) and respiration (R) than the woodland pond, although the differences …


Combined Effects Of Dissolved Oxygen And Temperature On Aerobic Respiration And Respiratory Recovery Responses Of The Spioniform Polychaete, Streblospio Gynobranchiata, In Relation To Body Size, Alyssa Bennett Dec 2017

Combined Effects Of Dissolved Oxygen And Temperature On Aerobic Respiration And Respiratory Recovery Responses Of The Spioniform Polychaete, Streblospio Gynobranchiata, In Relation To Body Size, Alyssa Bennett

Master's Theses

Elevated surface temperatures exacerbate the threat of hypoxia within coastal ecosystems. These two primary stressors likely interact as they elicit opposing physiological responses from marine organisms. Metabolic depression is typically associated with hypoxia, while metabolic rates increase with temperature. Moreover, physiological effects of combined stressors may not be additive. In light of increasing pressures from hypoxia, elevated ocean temperatures, and other stressors within coastal regions, studies need to examine effects of multiple stressors on physiology of coastal organisms.

Mass-specific aerobic respiration (VO2) was characterized as a proxy for metabolic cost of Streblospio gynobranchiata, at combined levels of …


Greater London In The 21st Century : Assessing Coastal Flooding Mitigation Preparedness And Regional Population Risk In The Face Of Projected Sea-Level Rise., Nathan K Wright Dec 2017

Greater London In The 21st Century : Assessing Coastal Flooding Mitigation Preparedness And Regional Population Risk In The Face Of Projected Sea-Level Rise., Nathan K Wright

Electronic Theses and Dissertations

Recent projections of +6-9m sea-level rise (SLR) over the next several decades present many social challenges for coastal regions during the 21st century. These projections were applied to Greater London, UK as areal interpolated historical census data was overlaid on a 50m DEM alongside a polyline projection of the Thames Barrier. Population was projected to milestones of 2041, 2071, and 2101 using a capped, aggregated growth rate for each polygon while SLR was simulated for 1m, 5m, and 9m scenarios. The Thames Barrier maintained integrity for 1m and 5m scenarios but was breached at 9m. Population continued to increase …


Stream Temperature Monitoring And Modeling To Inform Restoration: A Study Of Thermal Variability In The Western Us, Jessica R. Wood Dec 2017

Stream Temperature Monitoring And Modeling To Inform Restoration: A Study Of Thermal Variability In The Western Us, Jessica R. Wood

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Water temperature is an important variable for aquatic ecosystems. Salmonid population numbers and distribution are heavily influenced by stream temperature, and there is growing concern about the health of salmonid populations with anticipated climate change. Managers are looking to efficiently evaluate options to maintain stream temperatures needed by salmonids. This study evaluated and compared stream temperature restoration alternatives in two streams with warm temperatures using stream temperature monitoring and modeling.

The first study identified pockets of cold water that are important to native fish species in Nevada’s Walker River. Comparison of monitoring results with existing basin-scale model outputs identified two …


Effects Of Temperature On Growth And Molting In Blue Crabs (Callinectes Sapidus) And Lesser Blue Crabs (Callinectes Similis), Abigail Ann Kuhn Dec 2017

Effects Of Temperature On Growth And Molting In Blue Crabs (Callinectes Sapidus) And Lesser Blue Crabs (Callinectes Similis), Abigail Ann Kuhn

Master's Theses

Temperature can exert impacts on many processes in ectotherms. With global temperatures rising due to climate change, many ectothermic species may exhibit changes in growth rates and size at maturity, and these changes can have population-level effects. Predicting responses of species to climate change will require not only knowledge of thermal tolerance limits, but also effects of temperature change on growth rates and other life history parameters. For arthropods that exhibit discontinuous growth (i.e., molting), this includes both intermolt period and growth per molt. Previous laboratory and field experiments suggest that temperature affects both intermolt period (IMP) and growth per …


Development, Energy, And Climate Change Policy: Enabling Sustainable Development Through Access To Energy, Robert J. Brecha Nov 2017

Development, Energy, And Climate Change Policy: Enabling Sustainable Development Through Access To Energy, Robert J. Brecha

Biennial Conference: The Social Practice of Human Rights

Human rights, human development, and climate change clearly overlap in many ways. Development, as quantified by the Human Development Index (HDI), for example, has historically been strongly correlated with energy consumption. This fact is recognized in Sustainable Development Goal (SDG) 7, to “ensure access to affordable, reliable, sustainable and modern energy for all.” Currently the world is in the midst of a large wave of human migration, much of it involuntary and due to stymied development opportunities as well as political upheaval. Climate change will become, or already is, an exacerbating factor in migration dynamics.

A pertinent question is how …


Long-Term Antagonistic Effect Of Increased Precipitation And Nitrogen Addition On Soil Respiration In A Semiarid Steppe, Hongyan Han, Yue Du, Dafeng Hui, Lin Jiang, Mingxing Zhong, Shiqiang Wan Nov 2017

Long-Term Antagonistic Effect Of Increased Precipitation And Nitrogen Addition On Soil Respiration In A Semiarid Steppe, Hongyan Han, Yue Du, Dafeng Hui, Lin Jiang, Mingxing Zhong, Shiqiang Wan

Biology Faculty Research

Changes in water and nitrogen (N) availability due to climate change and atmospheric N deposition could have significant effects on soil respiration, a major pathway of carbon (C) loss from terrestrial ecosystems. A manipulative experiment simulating increased precipitation and atmospheric N deposition has been conducted for 9 years (2005–2013) in a semiarid grassland in Mongolian Plateau, China. Increased precipitation and N addition interactively affect soil respiration through the 9 years. The interactions demonstrated that N addition weakened the precipitation-induced stimulation of soil respiration, whereas increased precipitation exacerbated the negative impacts of N addition. The main effects of increased precipitation and …


The Importance Of Regional And Landscape Context And Climate Change To Northern Bobwhite Management, Frank R. Thompson Iii Nov 2017

The Importance Of Regional And Landscape Context And Climate Change To Northern Bobwhite Management, Frank R. Thompson Iii

National Quail Symposium Proceedings

Long-term declines in northern bobwhite (Colinus virginianus) in the United States are presumably due to decades of habitat loss or degradation at a national scale. Food and fiber production characterized by replacement of open woodlands and savannas by dense forest, intensification of agriculture, and conversion of native grasslands to nonnative pastures have degraded habitats for most grassland and early successional birds. Declines in bobwhite and associated species occurred within this context at a scale that has overwhelmed wildlife management efforts. However, with understanding of scale and context, managers could sustain these species in some future landscapes. Increasing urbanization …


An Analysis Of The Interactions Between Weather And Land Use On Midwestern Gamebird Populations Using Historical Data: A Preliminary Report, Amanda R. Lipinski, Joseph J. Fontaine Nov 2017

An Analysis Of The Interactions Between Weather And Land Use On Midwestern Gamebird Populations Using Historical Data: A Preliminary Report, Amanda R. Lipinski, Joseph J. Fontaine

National Quail Symposium Proceedings

Concern surrounding species’ abilities to cope with a changing climate and variable land use presents opportunities to look forward toward solutions while investigating historical trends to assess the interaction of land use and weather. Uncertainty surrounding population responses to increased severity and frequency of severe weather associated with climate change presents challenges for making informed management decisions for a suite of already declining bird populations, including huntable populations of socially and economically important game birds, such as northern bobwhite (Colinus virginianus). Historical data are a rich resource for developing a priori hypotheses and models predicting species’ responses to …