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Whose Lands? Which Public?: The Shape Of Public-Lands Law And Trump's National Monument Proclamations, Jedediah Britton-Purdy Jan 2018

Whose Lands? Which Public?: The Shape Of Public-Lands Law And Trump's National Monument Proclamations, Jedediah Britton-Purdy

Faculty Scholarship

President Trump issued a proclamation in December 2017 purporting to remove two million acres in southern Utah from national monument status, radically shrinking the Grand-Staircase Escalante National Monument and splitting the Bears Ears National Monument into two residual protected areas. Whether the President has the power to revise or revoke existing monuments under the Antiquities Act, which creates the national monument system, is a new question of law for a 112-year-old statute that has been used by Presidents from Theodore Roosevelt to Barack Obama to protect roughly fifteen million acres of federal land and hundreds of millions of marine acres. …

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Spatial Modelling And Wildlife Health Surveillance: A Case Study Of White Nose Syndrome In Ontario, Lauren Yee Jan 2018

Spatial Modelling And Wildlife Health Surveillance: A Case Study Of White Nose Syndrome In Ontario, Lauren Yee

Theses and Dissertations (Comprehensive)

Wildlife data is often limited by survey effort, small sample sizes, and spatial biases associated with collection and missing data. These factors can create unique challenges from a surveillance perspective when trying to extract spatial patterns of habitat suitability and disease distributions for conservation and management purposes. This thesis examined data quality from a wildlife health database in the context of spatial analysis of wildlife disease. Spatial analysis of the data to predict habitat suitability of bats and white nose syndrome afflicted bats was examined by using the MaxEnt modelling method. Methods to reduce spatial bias were examined and specific …

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Ecological Resilience Indicators For Salt Marsh Ecosystems, Scott T. Allen, Camille L. Stagg, Jorge Brenner, Kathleen L. Goodin, Don Faber-Langendoen, Christopher A. Gabler, Katherine Wirt Ames Jan 2018

Ecological Resilience Indicators For Salt Marsh Ecosystems, Scott T. Allen, Camille L. Stagg, Jorge Brenner, Kathleen L. Goodin, Don Faber-Langendoen, Christopher A. Gabler, Katherine Wirt Ames

School of Earth, Environmental, & Marine Sciences Faculty Publications

Salt marshes are coastal ecosystems within the intertidal zone, characterized by hypoxic, saline, soil conditions and low biodiversity. Low diversity arises from frequent disturbance and stressful conditions (i.e., high salinity and hypoxia), where vegetative reproduction and low competition result in mostly monotypic stands, with some differences in plant community influenced by flooding regime (described below). While there are several types of salt marshes in the Northern Gulf of Mexico (NGoM), ranging from low to high salt marshes and salt flats (Tiner, 2013), Spartina alterniflora–dominated salt marshes in the Coastal and Marine Ecological Classification Standard (CMECS) Low and Intermediate Salt Marsh …

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Colonialism And Its Aftermaths In Vieques, Puerto Rico: How U.S. Hegemony Led To Contamination, A Superfund Site, And Local Mistrust, Kaya Mark Jan 2018

Colonialism And Its Aftermaths In Vieques, Puerto Rico: How U.S. Hegemony Led To Contamination, A Superfund Site, And Local Mistrust, Kaya Mark

Scripps Senior Theses

After sixty-two years of U.S. military testing, the small Puerto Rican island of Vieques and its residents continue to fight against ongoing environmental and social effects of U.S. hegemony. Starting with the arrival of the Spanish, then with U.S. occupation and use of Vieques as a military stopover, Viequense residents are used to U.S. governmental presence on their land. Despite the military’s removal from Vieques in 2003, many local residents have a fundamental lack of trust for the U.S. government. Because of this lack of trust and transparency with U.S. governmental actions in the post- World War II period, residents …

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First Record Of The Yellowfin Soldierfish, Myripristis Chryseresjordan & Evermann, 1903, In The Easter Island Ecoregion, Erin E. Easton, Javier Sellanes, Matthias Gorny Jan 2018

First Record Of The Yellowfin Soldierfish, Myripristis Chryseresjordan & Evermann, 1903, In The Easter Island Ecoregion, Erin E. Easton, Javier Sellanes, Matthias Gorny

School of Earth, Environmental, & Marine Sciences Faculty Publications

Myripristis chryseres Jordan & Evermann, 1903, is recorded for the first time in the Easter Island Ecoregion. Two specimens were observed swimming along a rock cliff and entering a cavern at ∼163 m depth near the peak of Pukao seamount, located ∼85 km (46 nm) west of Easter Island. This report expands the geographic range of M. chryseres eastward by ∼3,800 km and is the first report of the species for the eastern Pacific. It is unclear whether this new record is indicative of a relatively recent range expansion or a lack of visual surveys in the region, which …

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Genotypic Responses Of Brachiaria Grass (Brachiaria Spp.) Accessions To Drought Stress, Duncan Cheruiyot, Charles Aura Odhiambo Midega, Johnnie Van Den Berg, John Anthony Pickett, Zeyaur Rahman Khan Jan 2018

Genotypic Responses Of Brachiaria Grass (Brachiaria Spp.) Accessions To Drought Stress, Duncan Cheruiyot, Charles Aura Odhiambo Midega, Johnnie Van Den Berg, John Anthony Pickett, Zeyaur Rahman Khan

All Peer-Reviewed Publications

Background and Objective: Brachiaria, a warm season C4 grass, is rapidly gaining popularity as fodder crop in Africa where it is also used as a component of a habitat management strategy for maize stem borers. However, increasing drought limits productivity of this grass species. The aim of this study was to evaluate and select high yielding brachiaria genotypes under simulated drought conditions. Materials and Methods: The morphological and physiological performance of 18 apomictic accessions of brachiaria in simulated drought conditions in a screen house were evaluated. Plants were exposed to different watering regimes. Well-watered (control) plants were watered every 48 …

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Anatomy Of An Interrupted Irrigation Season: Micro-Drought At The Wind River Indian Reservation, Shannon M. Mcneeley, Cadida F. Dewes, Crystal J. Stiles, Tyler A. Beeton, Imtiaz Rangwala, Michael T. Hobbins, Cody L. Knutson Jan 2018

Anatomy Of An Interrupted Irrigation Season: Micro-Drought At The Wind River Indian Reservation, Shannon M. Mcneeley, Cadida F. Dewes, Crystal J. Stiles, Tyler A. Beeton, Imtiaz Rangwala, Michael T. Hobbins, Cody L. Knutson

School of Natural Resources: Faculty Publications

Drought is a complex phenomenon manifested through interactions between biophysical and social factors. At the Wind River Indian Reservation (WRIR) in west-central Wyoming, water shortages have become increasingly common since the turn of the 21st century. Here we discuss the 2015 water year as an exemplar year, which was characterized by wetter-than-normal conditions across the reservation and, according to the U.S. Drought Monitor, remained drought-free throughout the year. Yet parts of the reservation experienced harmful water shortages, or “microdrought” conditions, during the growing season in 2015. In this assessment of the 2015 water year at the WRIR we: (1) describe …

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The Source Of Excess Nutrients To Pine Draw, Turnbull National Wildlife Refuge, Henry Price Jan 2018

The Source Of Excess Nutrients To Pine Draw, Turnbull National Wildlife Refuge, Henry Price

EWU Masters Thesis Collection

Nitrogen and phosphorus are the most common limiting nutrients for biological activity in freshwater ecosystems. Applying inorganic nitrogen fertilizer has increased crop productivity but caused excess nitrogen inputs to the hydrosphere. Nitrate contamination is a worldwide environmental problem. The fate of nitrogen in ecosystems is variable based on land type and hydrogeological interactions. Excess nitrogen can be retained in soils, sequestered in stream organisms, denitrified or transported downstream. The goals of this study were to monitor nitrogen concentrations in Pine Draw, Turnbull National Wildlife Refuge (TNWR), Washington, U.S.A., and to determine the source of nitrogen loading. Pine Draw is unique …

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Temporal Trends In Human Vulnerability To Excessive Heat, Scott C. Sheridan, Michael J. Allen Jan 2018

Temporal Trends In Human Vulnerability To Excessive Heat, Scott C. Sheridan, Michael J. Allen

Political Science & Geography Faculty Publications

Over recent decades, studies have examined various morbidity and mortality outcomes associated with heat exposure. This review explores the collective knowledge of the temporal trends of heat on human health, with regard to the hypothesis that humans are less vulnerable to heat events presently than in the past. Using Web of Science and Scopus, the authors identified all peer-reviewed articles that contained keywords on human impact (e.g. mortality, morbidity) and meteorological component (e.g. heat, heatwave). After sorting, a total of 71 articles, both case studies and epidemiological studies, contained explicit assessments of temporal trends in human vulnerability, and thus were …

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Compression And Relaxation Of Fishing Effort In Response To Changes In Length Of Fishing Season For Red Snapper (Lutjanus Campechanus) In The Northern Gulf Of Mexico, Sean P. Powers, Kevin Anson Jan 2018

Compression And Relaxation Of Fishing Effort In Response To Changes In Length Of Fishing Season For Red Snapper (Lutjanus Campechanus) In The Northern Gulf Of Mexico, Sean P. Powers, Kevin Anson

University Faculty and Staff Publications

A standard method used by fisheries managers to decrease catch and effort is to shorten the length of a fishery; however, data on recreational angler response to this simple approach are surprisingly lacking. We assessed the effect of variable season length on daily fishing effort, measured by using numbers of boat launches per day, anglers per boat, and anglers per day from video observations, in the recreational sector of the federal fishery for red snapper (Lutjanus campechanus) in coastal Alabama. From 2012 through 2017, season length fluctuated from 3 to 40 d. Daily effort, measured by using mean number of …

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Habitat Suitability Of Restored Wetlands And An Investigation Of Sampling Bias For Freshwater Turtles In West Virginia, Alissa L. Gulette Jan 2018

Habitat Suitability Of Restored Wetlands And An Investigation Of Sampling Bias For Freshwater Turtles In West Virginia, Alissa L. Gulette

Graduate Theses, Dissertations, and Problem Reports (ETD)

Loss and drainage of wetlands in the United States has been remediated in part by wetland restoration on agricultural lands through the Agricultural Conservation Easement Program (ACEP), operated by the Natural Resources Conservation Service. Freshwater turtles are important components of wetland ecosystems, where they contribute to nutrient cycling, storage, and transfer between terrestrial and aquatic systems, and function as apex predators. In 2016 and 2017, we investigated use of wetlands restored through the ACEP program in West Virginia by two common freshwater turtle species, snapping turtles (Chelydra serpentina) and painted turtles (Chrysemys picta), and obtained comparative data from reference wetlands. …

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Within-Fire Patchiness Associated With Prescribed Burning In The Northern Jarrah Forests Of Western Australia, Zigourney Nielsen Jan 2018

Within-Fire Patchiness Associated With Prescribed Burning In The Northern Jarrah Forests Of Western Australia, Zigourney Nielsen

Theses: Doctorates and Masters

There is growing understanding of the importance of landscape mosaics and heterogeneity for biodiversity outcomes in Western Australia. However, there is limited information on the patchiness (spatial configuration of unburnt and burnt patches which occur at a range of spatial scales) within the perimeter of a single prescribed burn. Of particular concern is the idea that prescribed burning operations, carried out under very restricted weather and environmental conditions, can lead to structural and floristic homogenization of the area within a burn perimeter. This may be evident as reduced post-fire vegetation patchiness. Western Australian Jarrah (Eucalyptus marginata) forests are managed to …

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The Value Of Animal Behaviour As A Bio-Indicator Of Restoration Quality, Floyd Holmes Jan 2018

The Value Of Animal Behaviour As A Bio-Indicator Of Restoration Quality, Floyd Holmes

Theses: Doctorates and Masters

Woodland restoration is a complex endeavour, and restoration ecology as a scientific discipline requires constant re-assessments and adjustments if it is to improve outcomes and better provide for biodiversity. The promise of effective restoration is often used to justify destructive processes that affect many of the world’s ecosystems. It is therefore imperative that those promises can be met, which comes down to restoration ecologists’ and land managers’ capacity to predict and facilitate desirable ecological changes in a timely and socio-economically responsible manner. As perspectives have changed, and knowledge has been gained over the past few decades there have been several …

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Wintering American Black Duck Ecology Of Central Appalachia, Sara E. Yannuzzi Jan 2018

Wintering American Black Duck Ecology Of Central Appalachia, Sara E. Yannuzzi

Graduate Theses, Dissertations, and Problem Reports (ETD)

The American black duck (Anas rubripes) is a species of dabbling duck found only in the northeastern part of North America, and widely hunted until its decline. Since the 1950s, the total population has decreased by 53%. Habitat degradation and decline of wintering and breeding wetlands, historic overharvest, and interactions with the mallard (A. platyrhynchos) are attributed as some of the main causes of the black duck population’s decrease. Many policies and taxa- and habitat-specific joint ventures have since been created to aid in studying and improving North American wetlands and black duck populations throughout both their breeding and wintering …

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An Interspecies Investigation Of Thyroid Plasma Hormone Concentrations, Histology, And Gene Expression, Emily A. Underwood Jan 2018

An Interspecies Investigation Of Thyroid Plasma Hormone Concentrations, Histology, And Gene Expression, Emily A. Underwood

Graduate Theses, Dissertations, and Problem Reports (ETD)

A high prevalence of endocrine disrupting chemicals (EDCs) in Great Lakes Areas of Concern (AOCs) has raised concerns as to the health and fitness of fish and wildlife. It is not well understood to what extent existing contaminants, many with continuing inflows into the environment, may impact fish populations. This study provides an initial characterization of thyroid endocrine-related effects in two indigenous fish species sampled from Great Lakes AOCs. Biomonitoring was conducted on a pelagic, top predator species, smallmouth bass (Micropterus dolomieu) and benthic, omnivorous brown bullhead (Ameiurus nebulosus) at 7 sites in spring and fall …

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Application Of Molecular Pathology Techniques To Understand Mechanisms Of Disease In Smallmouth Bass, Heather Leigh Walsh Jan 2018

Application Of Molecular Pathology Techniques To Understand Mechanisms Of Disease In Smallmouth Bass, Heather Leigh Walsh

Graduate Theses, Dissertations, and Problem Reports (ETD)

In the Chesapeake Bay drainage, smallmouth bass Micropterus dolomieu are used as an indicator species of estrogenic contaminant exposure and have been implicated in fish kills and disease since 2005. In the Potomac River drainage, adult smallmouth bass have experienced mortality and disease and males have a high prevalence of intersex (testicular oocytes). Conversely, in the Susquehanna River drainage mortalities and disease of young-of-the-year smallmouth bass (YOY SMB) have occurred and resulted in a population shift to older and larger fish. The exact cause of these events remains unknown; however, factors such as poor water quality, contaminants, pathogens and parasites, …

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Public Elementary School Teachers' Experiences With Implementing Outdoor Classrooms, Lori Schultz Goff Jan 2018

Public Elementary School Teachers' Experiences With Implementing Outdoor Classrooms, Lori Schultz Goff

Walden Dissertations and Doctoral Studies

Children experience limited time outdoors and have few opportunities for outdoor learning in schools, putting them at risk for being unprepared to engage in solving environmental and societal problems. Researchers have examined outdoor learning at the preschool and high school levels; elementary school experiences have been explored less frequently. Guided by a conceptual framework informed by social emotional learning (SEL), ecological literacy, and teacher self-efficacy, this study investigated public school elementary teachers' experiences with outdoor classrooms including barriers and supports to creating and using outdoor classrooms. A qualitative design using in-depth interviews with interpretive phenomenological analysis techniques was conducted with …

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Waste Management Minimization Strategies In Hospitals, Andrea L. Clark Jan 2018

Waste Management Minimization Strategies In Hospitals, Andrea L. Clark

Walden Dissertations and Doctoral Studies

During the delivery of healthcare services, hospital employees use enormous amounts of water, energy, and nonbiodegradable carcinogenic plastics. In the U.S., hospital staff generate an average of over 7,000 tons of waste per day at an average cost of $0.28 per pound for the disposal of regulated medical trash, which if efficiently managed or reduced, could result in substantial cost savings. Using the organizational learning and the transaction cost economics theories as the conceptual frameworks, the purpose of this qualitative case study was to explore strategies healthcare leaders used to minimize their waste management operational costs. Data were collected using …

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Experiences And Practices Of Environmental Adult Education Participants, Cindy Fitzwilliams-Heck Jan 2018

Experiences And Practices Of Environmental Adult Education Participants, Cindy Fitzwilliams-Heck

Walden Dissertations and Doctoral Studies

Awareness of the sustainability of our natural resources is a continuing concern. Initiatives promoting environmental adult education (EAE) through professional development (PD) workshops ensure educators' have the knowledge and skills to inform their audience about environmental literacy and stewardship. However, these workshops have rarely been monitored. Specifically, it appears no researchers have focused on the reflective experiences of an EAE PD workshop on educator participants at least 5 years after participation. This basic qualitative study used telephone interviews of 8 past participants to explore whether and how they perceive their behavior changing in relation to natural resources conservation years after …

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Relationship Between Exposure To Phthalate And Obesity In The United States, Gladys Chidiebere Ezem Jan 2018

Relationship Between Exposure To Phthalate And Obesity In The United States, Gladys Chidiebere Ezem

Walden Dissertations and Doctoral Studies

Obesity is a public health problem. The global obesity problem has been attributed to unhealthy diet, inactivity, and hereditary factors. However, phthalates may also contribute to the obesity epidemic. The purpose of this cross-sectional study was to examine whether there was a relationship between exposure to phthalates and obesity among adults 18 years and older in the United States. The theoretical framework was based on the socioecological model. The quantitative, cross-sectional design, and data analysis were based on the National Health and Nutrition Examination Survey, 2011-2012 database. Descriptive statistics and multiple regression analysis were used to analyze the association between …

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Corporate Social Responsibility Implementation Framework, Samuel Bonsu Jan 2018

Corporate Social Responsibility Implementation Framework, Samuel Bonsu

Walden Dissertations and Doctoral Studies

As social problems, such as environmental pollution persist, the need to implement corporate social responsibility (CSR) to enhance societal well-being becomes important. However, little is known about how corporate leaders implement CSR. The purpose of this qualitative transcendental phenomenological study was to identify and report the lived experiences of corporate managers relevant to CSR implementation. This study was guided by ecological systems theory, the Porter hypothesis, the Maslow hierarchy of needs theory, and the Harrod-Domar growth model, which justify the importance of societal well-being to business profitability and growth. The research question regarding the lived experiences of corporate managers of …

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Effect Of Natural Blue-Green Algal Cells Lysis On Freshwater Quality, Kessy Kilulya, Titus Msagati, Bhekie Mamba Dec 2017

Effect Of Natural Blue-Green Algal Cells Lysis On Freshwater Quality, Kessy Kilulya, Titus Msagati, Bhekie Mamba

Tanzania Journal of Science

Blue-green algae grow in freshwater bodies when they are provided with suitable factors such as nutrients and appropriate weather conditions. Their cell lysis occurs naturally when they encounter unfavourable conditions.  This study reports on the types and amounts of fatty acids added into freshwater due to the algal cell lysis. The investigation on the amount of fatty acids released into water due to algal cells lysis was performed by placing samples in two compartments, one with no light allowing the algae cells to die while the other compartment was kept in favourable conditions enough to sustain the life of algae. …

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Palm Oil: The Hidden Costs, Rachel Goehring Dec 2017

Palm Oil: The Hidden Costs, Rachel Goehring

Op-Eds from ENSC230 Energy and the Environment: Economics and Policies

The growing demand for palm oil generates tens of billions of dollars in revenue and employs millions in Southeast Asian countries. The story is that conserving the rainforests from palm oil production puts this economy at risk, but only because the current formula does not account for the externalities of deforestation.

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A Framework For Linking Population Model Development With Ecological Risk Assessment Objectives, Sandy Raimondo, Matthew Etterson, Nathan Pollesch, Kristina Garber, Andrew Kanarek, Wade Lehmann, Jill Awkerman Dec 2017

A Framework For Linking Population Model Development With Ecological Risk Assessment Objectives, Sandy Raimondo, Matthew Etterson, Nathan Pollesch, Kristina Garber, Andrew Kanarek, Wade Lehmann, Jill Awkerman

United States Environmental Protection Agency: Publications

The value of models that link organism-level impacts to the responses of a population in ecological risk assessments (ERAs) has been demonstrated extensively over the past few decades. There is little debate about the utility of these models to translate multiple organism-level endpoints into a holistic interpretation of effect to the population; however, there continues to be a struggle for actual application of these models as a common practice in ERA. Although general frameworks for developing models for ERA have been proposed, there is limited guidance on when models should be used, in what form, and how to interpret model …

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Use Of An Alternative Natural Weed Suppressant: Effects Of Parboiled Rice Hull Mulch On The Growth Of Container Weeds, Amy R. Fields-Taylor, Vanessa Slinger-Friedman Dec 2017

Use Of An Alternative Natural Weed Suppressant: Effects Of Parboiled Rice Hull Mulch On The Growth Of Container Weeds, Amy R. Fields-Taylor, Vanessa Slinger-Friedman

The Kennesaw Journal of Undergraduate Research

The Chattahoochee Nature Center (CNC) is one of the leading educational centers in Georgia about the ecology of the Chattahoochee River. Due to lack of man power, keeping down the weeds in the CNC plant nursery is one of those tasks that often gets left undone. The nursery becomes overgrown with invasive weed species. Understandably, they must sometimes resort to the use of herbicides, such as Roundup®, to keep the hundreds of native and endangered species of plants housed at CNC from being choked out by invasive weeds. This study tests the ability to suppress weed growth by use of …

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Automated Species Classification Methods For Passive Acoustic Monitoring Of Beaked Whales, John Lebien Dec 2017

Automated Species Classification Methods For Passive Acoustic Monitoring Of Beaked Whales, John Lebien

LSU New Orleans Theses and Dissertations

The Littoral Acoustic Demonstration Center has collected passive acoustic monitoring data in the northern Gulf of Mexico since 2001. Recordings were made in 2007 near the Deepwater Horizon oil spill that provide a baseline for an extensive study of regional marine mammal populations in response to the disaster. Animal density estimates can be derived from detections of echolocation signals in the acoustic data. Beaked whales are of particular interest as they remain one of the least understood groups of marine mammals, and relatively few abundance estimates exist. Efficient methods for classifying detected echolocation transients are essential for mining long-term passive …

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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 …

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Assessment Of Vegetation Response To Wildfire At Bandelier National Monument, New Mexico: Case Study Of The Las Conchas Fire, Gladys Valentin-Gonzalez Dec 2017

Assessment Of Vegetation Response To Wildfire At Bandelier National Monument, New Mexico: Case Study Of The Las Conchas Fire, Gladys Valentin-Gonzalez

Geography ETDs

In the past couple of decades, there has been an increase in the occurrence of wildfire events in the United States. The U.S. Forest Service estimates that over 73,000 wildfires on average occur annually in the U.S., burning about 7.3 million acres of land. Bandelier National Monument, in northern New Mexico, has been affected by several wildfires in the past 40 years, one of the most recent being the Las Conchas Fire in 2011, which burned over 60,700 hectaresin Bandelier National Monument and Valles Caldera National Preserve. This research explores a remote-sensing based assessment of vegetation response to and recovery …

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The Blurred Line Between Photic And Aphotic Environments: A Large Mexican Cave With Almost No Dark Zone, Luis M. Mejía-Ortíz, Tanja Pipan, David C. Culver, Peter Sprouse Dec 2017

The Blurred Line Between Photic And Aphotic Environments: A Large Mexican Cave With Almost No Dark Zone, Luis M. Mejía-Ortíz, Tanja Pipan, David C. Culver, Peter Sprouse

International Journal of Speleology

Sistema Muévelo Rico is a 1.2 km long cave in Quintana Roo, less than 2 km from the Caribbean Sea. We measured illuminance to a level of 0.1 lux, organic matter (weight loss on ignition), temperature, and relative humidity. The last two were measured at hourly intervals for nearly one year. Approximately one-third of the cave has illuminance values greater than 0.01 lux, and most of the rest of the cave has light as well. Temperature and relative humidity were relatively constant, but they showed a daily cycle at all stations, albeit with different strengths. Organic matter averaged 8%, intermediate …

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Predicted Suitable Habitat Declines For Midwestern United States Amphibians Under Future Climate And Land-Use Change Scenarios, Brock Struecker, Joseph Milanovich Dec 2017

Predicted Suitable Habitat Declines For Midwestern United States Amphibians Under Future Climate And Land-Use Change Scenarios, Brock Struecker, Joseph Milanovich

Biology: Faculty Publications and Other Works

With current declines of vertebrate taxa meeting or exceeding those of historic mass extinction events, there is a growing need to investigate the main drivers of losses. Two of the main drivers of declines are global climate and land-use changes, both affecting multiple groups of taxa. Amphibians are at great risk from these two drivers of change and investigations into the impact of future change could assist with the formation of conservation plans to mitigate losses. Forecasting changes in suitable habitat with ecological niche modeling serves as a useful tool to begin to understand how species may respond to anthropogenic …

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