Ranking The Risk Of Co2 Emissions From Seagrass Soil Carbon Stocks Under Global Change Threats,
2023
Edith Cowan University
Ranking The Risk Of Co2 Emissions From Seagrass Soil Carbon Stocks Under Global Change Threats, Martin Dahl, Kathryn Mcmahon, Paul S. Lavery, Serena H. Hamilton, Catherine E. Lovelock, Oscar Serrano
Research outputs 2022 to 2026
Seagrass meadows are natural carbon storage hotspots at risk from global change threats, and their loss can result in the remineralization of soil carbon stocks and CO2 emissions fueling climate change. Here we used expert elicitation and empirical evidence to assess the risk of CO2 emissions from seagrass soils caused by multiple human-induced, biological and climate change threats. Judgments from 41 experts were synthesized into a seagrass CO2 emission risk score based on vulnerability factors (i.e., spatial scale, frequency, magnitude, resistance and recovery) to seagrass soil organic carbon stocks. Experts perceived that climate change threats (e.g., gradual ocean warming and …
Forest Hydrology In Chile: Past, Present, And Future,
2023
Edith Cowan University
Forest Hydrology In Chile: Past, Present, And Future, Francisco Balocchi, Mauricio Galleguillos, Diego Rivera, Alejandra Stehr, Jose Luis Arumi, Roberto Pizarro, Pablo Garcia-Chevesich, Andrés Iroumé, Juan J. Armesto, Pedro Hervé-Fernández, Carlos Oyarzún, Pilar Barría, Christian Little, Gabriel Mancilla, Santiago Yépez, Rolando Rodriguez, Don A. White, Richard P. Silberstein, Daniel G. Neary, Pablo Ramírez De Arellano
Research outputs 2022 to 2026
This paper reviews the current knowledge of hydrological processes in Chilean temperate forests which extend along western South America from latitude 29° S to 56 ° S. This geographic region includes a diverse range of natural and planted forests and a broad sweep of vegetation, edaphic, topographic, geologic, and climatic settings which create a unique natural laboratory. Many local communities, endangered freshwater ecosystems, and downstream economic activities in Chile rely on water flows from forested catchments. This review aims to (i) provide a comprehensive overview of Chilean forest hydrology, to (ii) review prior research in forest hydrology in Chile, and …
The Links To Cancer: How Golf Became Dangerous And What We Can Do To Save The Game,
2023
University of Montana, Missoula
The Links To Cancer: How Golf Became Dangerous And What We Can Do To Save The Game, Meredith Boos
Undergraduate Theses, Professional Papers, and Capstone Artifacts
This study is a comprehensive meta-analysis on health claims linked to exposure to golf courses, more specifically the chemicals used to maintain their appearance. It provides a brief history of the golf industry and how its growth exacerbated the environmental impact as well as an explanation of the legal landscape that will affect golf course management. Golf courses can disrupt local ecologies, contaminate ground water, rivers, lakes and streams with run-off, and be responsible for the bioaccumulation of chemicals which remain dangerous for decades. Despite the adverse effects of golf courses on the environment, there remains an opportunity to transform …
Characterization Of Vernal Pools Across National Parks In The Great Lakes Region,
2023
Michigan Technological University
Characterization Of Vernal Pools Across National Parks In The Great Lakes Region, Samantha R. Kurkowski
Dissertations, Master's Theses and Master's Reports
Vernal pools are small, ephemeral wetlands that become inundated each spring and provide many ecosystem services to the surrounding upland forests. They also provide critical habitat for amphibians and invertebrates, as their temporary nature keeps them free of fish and reduces predator populations. As part of a mapping project, we collected baseline field data on vernal pool characteristics throughout five Great Lakes National Parks: Pictured Rocks National Lakeshore, Sleeping Bear Dunes National Lakeshore, Apostle Islands National Lakeshore, Isle Royale National Park, and Voyagers National Parks. Our goals were to characterize and assess how vernal pools vary within and across the …
Eutrophication On Twin Lakes: Applying A Phosphorus Budget And Shoreline Surveys To Assess Current & Historical Lake Health,
2023
Michigan Technological University
Eutrophication On Twin Lakes: Applying A Phosphorus Budget And Shoreline Surveys To Assess Current & Historical Lake Health, Tyler K. Lemahieu
Dissertations, Master's Theses and Master's Reports
The Twin Lakes system, a series of lakes including Lake Gerald and Lake Roland, was historically categorized as oligotrophic but is now mesotrophic having experienced cultural eutrophication. A mass balance phosphorus budget model was constructed for the Twin Lakes system in Houghton, Co. Michigan for the 2022 stratified season. Additional spatial insights were gleaned through a survey of shoreline water quality, which corroborated the model results. The lakes currently experience substantial depletion of hypolimnetic dissolved oxygen during late summer stratification. A budget reveals approximately 22% (6.6 kg) of the current 29.5 kg total phosphorus inputs to Twin Lakes (during the …
How Akron Affects The Water Quality Of The Cuyahoga River,
2023
The University of Akron
How Akron Affects The Water Quality Of The Cuyahoga River, Allyson Darst
Williams Honors College, Honors Research Projects
The purpose of this study was to analyze whether the city of Akron had negative effects on the Cuyahoga river, and determine if the Cuyahoga River was naturally able to remediate these effects downstream. The pollutants measured in this study include hardness, bromine, residual chlorine, iron, copper, lead, nitrate, nitrite, ammonium chloride, total chlorine, fluoride, carbonate, pH, total alkalinity and cyanuric acid. This study was done using water testing strips (JNW Direct) to test the water at four different locations along the Cuyahoga River downstream (North) of Akron. This study found that the city of Akron does have a negative …
Integrating Human Dimensions In Decadal-Scale Prediction For Marine Social Ecological Systems: Lighting The Grey Zone,
2023
Old Dominion University
Integrating Human Dimensions In Decadal-Scale Prediction For Marine Social Ecological Systems: Lighting The Grey Zone, Jess Melbourne-Thomas, Desiree Tommasi, Marion Gehlen, Eugene J. Murphy, Jennifer Beckensteiner, Francisco Bravo, Tyler D. Eddy, Mibu Fischer, Elizabeth Fulton, Mayya Gogina, Eileen Hofmann, Maya Ito, Sara Mynott, Kelly Ortega-Cisneros, Anna N. Osiecka, Mark R. Payne, Romeo Saldívar-Lucio, Kim J.N. Scherrer
CCPO Publications
The dynamics of marine systems at decadal scales are notoriously hard to predict-hence references to this timescale as the "grey zone" for ocean prediction. Nevertheless, decadal-scale prediction is a rapidly developing field with an increasing number of applications to help guide ocean stewardship and sustainable use of marine environments. Such predictions can provide industry and managers with information more suited to support planning and management over strategic timeframes, as compared to seasonal forecasts or long-term (century-scale) predictions. The most significant advances in capability for decadal-scale prediction over recent years have been for ocean physics and biogeochemistry, with some notable advances …
Seasonal Habitat Preference And Foraging Behaviour Of Post-Moult Weddell Seals In The Western Ross Sea,
2023
Old Dominion University
Seasonal Habitat Preference And Foraging Behaviour Of Post-Moult Weddell Seals In The Western Ross Sea, Kimberly T. Goetz, Michael S. Dinniman, Luis A. Hückstädt, Patrick W. Robinson, Michelle R. Shero, Jennifer M. Burns, Eileen E. Hofmann, Sharon E. Stammerjohn, Elliott L. Hazen, David G. Ainley, Daniel P. Costa
CCPO Publications
Weddell seals (Leptonychotes weddellii) are important predators in the Southern Ocean and are among the best-studied pinnipeds on Earth, yet much still needs to be learned about their year-round movements and foraging behaviour. Using biologgers, we tagged 62 post-moult Weddell seals in McMurdo Sound and vicinity between 2010 and 2012. Generalized additive mixed models were used to (i) explain and predict the probability of seal presence and foraging behaviour from eight environmental variables, and (ii) examine foraging behaviour in relation to dive metrics. Foraging probability was highest in winter and lowest in summer, and foraging occurred mostly in …
Wetland Walk Vr: Field Ecology In Northeast Florida,
2023
University of North Florida
Wetland Walk Vr: Field Ecology In Northeast Florida, Kailan Sindelar
UNF Faculty Research and Scholarship
Join Field Ecologists of the University of North Florida as they begin to monitor the water in swamps and marshes. In this virtual reality experience you will walk through places that are normally too dangerous or harmful to visit, learning about life in these places, how we study it, and how you may connect to it.
Hide And Seek: An Exploration Of Antipredator And Predator Avoidance Mechanisms In Orthopodomyia Signifera In Response To Predation From Toxorhynchites Rutilus,
2023
The University of Southern Mississippi
Hide And Seek: An Exploration Of Antipredator And Predator Avoidance Mechanisms In Orthopodomyia Signifera In Response To Predation From Toxorhynchites Rutilus, Nathaniel Dahlberg
Master's Theses
There have been many observations of larval Orthopodomyia signifera coexisting with the predator Toxorhynchites rutilus. There are three hypotheses that could explain how Or. signifera resists predation from Tx. rutilus. The first hypothesis states that larvae adapt behavioral changes that limit predation. The second hypothesis states thoracic setae serve as a physical defense that prevents Tx. rutilus from grasping Or. signifera. The third hypothesis states Or. signifera possess a chemical defense indicated by aposematic coloration. To test the first hypothesis larval Or. signifera were exposed to conspecific and heterospecific predation cues and their behavior was observed. Both cues …
A Diet Comparison Of Bluegill And Bluegill X Pumpkinseed Hybrids,
2023
Bemidji State University
A Diet Comparison Of Bluegill And Bluegill X Pumpkinseed Hybrids, Russell D. Zwiers
Journal of Earth and Life Science
Bluegill Lepomis macrochirus and pumpkinseed Lepomis gibbosus commonly prey upon macroinvertebrates but have been found to show different preferences to what type of macroinvertebrates. Hybrids of the two species have been found to display physical characteristics of both parents but prey selection of the hybrids compared to the parents is unknown. Therefore, the objective of this study was to analyze the diets of bluegill and bluegill x pumpkinseed hybrids to understand what each species’ preference is when it comes to food as well as finding how a hybrid’s diet compares to the pure breed of one of the two crossed …
Effects Of Velocity And Substrate Size On The Formation Of Zebra Mussel Druses,
2023
Bemidji State University
Effects Of Velocity And Substrate Size On The Formation Of Zebra Mussel Druses, Ian Mott
Journal of Earth and Life Science
Zebra Mussels Dreissena polymorpha are an invasive bivalve species that are highly successful at dominating new environments. These invaders have been known to colonize substrate so thoroughly that all they have to attach to are members of their own species. When large mats of interconnected mussels completely cover a riverbed, it can have a drastic effect on the surrounding environment. This study serves to create a better understanding of the hydrologic parameters needed for Zebra Mussels to create these ecosystem-transforming colonies known as druses. Data was collected on a small stretch of the Upper Mississippi River in Northern Minnesota, previously …
Estimate Of Long-Term Phytoplankton Biomass In Lake Bemidji,
2023
Bemidji State University
Estimate Of Long-Term Phytoplankton Biomass In Lake Bemidji, William J. Peterson
Journal of Earth and Life Science
Phytoplankton are photosynthetic organisms that are the base of aquatic food webs. In a dimictic temperate lake such as Lake Bemidji, the environment adjusts with the changing water temperatures and sunlight levels. The phytoplankton in a dimictic lake are adapted to subsist in long term seasonal changes but the exact change to the number of phytoplankton in unknown. The focus of this study was to estimate the biomass of phytoplankton in a long term period including winter stratification and summer peak. From a period between March 2023 and October 2023 water samples were collected from the lake in the south …
Tekëne (Woodland),
2023
Delaware Tribe of Indians, Bartlesville, OK
Tekëne (Woodland), Jeremy Johnson, Heather A. Wholey, Stephanie Thompson
Gordon Natural Area History & Strategic Plan Documents
Tèkëne are highly biodiverse ecosystems comprised of plants and wildlife that thrive within four layers: tree canopy; understory; field; and forest floor. Temperate deciduous forests are naturally among the most bio-diverse habitats worldwide. The Lenape are among several indigenous cultures with deep ancestral ties to the Eastern Woodlands.
Under Ice Photosynthetic Primary Production And Dark Carbon Fixation In A Temperate Freshwater System,
2023
Michigan Technological University
Under Ice Photosynthetic Primary Production And Dark Carbon Fixation In A Temperate Freshwater System, Vanessa Cubillos Tellez
Dissertations, Master's Theses and Master's Reports
Ice-covered lakes are vulnerable to environmental change, especially those in the Northern Hemisphere where ice cover is rapidly declining due to global warming. These changes can alter metabolic processes and disrupt carbon cycling driven by primary producers who form the base of the food chain and are key to sustaining ecosystem function. Photosynthetic primary production and dark carbon fixation under the ice in the Keweenaw Waterway, a temperate freshwater system that is ice-covered for ~3 months out of the year, were studied using a carbon isotopic labeling (14C-bicarbonate) technique. Water samples were collected weekly during ice cover and monthly during …
Diets Of Invasive Channel Catfish Are Subsidized By Invasive Riparian Trees,
2023
South Dakota State University
Diets Of Invasive Channel Catfish Are Subsidized By Invasive Riparian Trees, Christopher A. Cheek, Brandon K. Peoples, Reuben R. Goforth
Natural Resource Management Faculty Publications
Russian olive (Elaeagnus angustifolia) is an invasive, fruit- bearing riparian tree that dominates riparian zones of the San Juan River in the southwestern United States. Previous research in this river suggests olive fruit is common in diets of invasive channel catfish (Ictalurus punctatus), but its energetic importance is unknown (i.e. critical for catfish fitness vs. incidental consumption). We assessed Russian olive consumption in channel catfish diets bimonthly for 1 year, hypothesizing that olive consumption would be greatest during periods of high olive availability and low benthic aquatic invertebrate availability. We found that catfish consumed olive fruit throughout the year and …
Facing Into The Blizzard: Resiliency And Mortality Of Native And Domestic North American Ungulates To Extreme Weather Events,
2023
South Dakota State University
Facing Into The Blizzard: Resiliency And Mortality Of Native And Domestic North American Ungulates To Extreme Weather Events, Jeff Martin
Natural Resource Management Faculty Publications
Unseasonably early blizzards in the northern Great Plains threaten large mammal populations unacclimated for variable and extreme winter conditions. This region averaged 22 blizzards per winter season during the 2010s, up from 6 during the 1960s, and is anticipated to average 32 blizzards by the 2050s. In early October 2013, the fatal Atlas Blizzard affected four livestock and captive species in 16 counties of western South Dakota. Expected one-week total death losses for the study area were estimated from national average background mortality rates: 161 cattle, 102 sheep, 9 horses, and 6 bison. However, observed death loss varied significantly (McNemar’s …
Advancing Assessments Of Climate Change Vulnerability Of West Virginia Watersheds,
2023
West Virginia University
Advancing Assessments Of Climate Change Vulnerability Of West Virginia Watersheds, Joseph T. Molina
Graduate Theses, Dissertations, and Problem Reports (ETD)
As climate change is becoming increasingly recognized as a threat to aquatic ecosystems, climate adaptation planning, in both the long- and short-term, is becoming more common in natural resource management. There is a need within conservation agencies to develop methodologies and assessments that support adaptation planning to efficiently disperse conservation dollars and effectively strengthen ecological and community resilience as climate changes continue. My thesis aims to provide West Virginia natural resources managers with climate vulnerability assessments that can be used to determine where and how conservation efforts should be administered. Additionally, I demonstrate a methodology that can be built upon …
Abundance-Habitat Relationships And Aquatic-Terrestrial Habitat Selection Patterns For Wood Turtles (Glyptemys Insculpta) In The Upper Midwest,
2023
West Virginia University
Abundance-Habitat Relationships And Aquatic-Terrestrial Habitat Selection Patterns For Wood Turtles (Glyptemys Insculpta) In The Upper Midwest, Jena Marie Staggs
Graduate Theses, Dissertations, and Problem Reports (ETD)
Due to range-wide population declines, wood turtles (Glyptemys insculpta) are under review for federal listing under the United States Endangered Species Act. Understanding how habitat associations and environmental conditions influence population dynamics and spatiotemporal activity patterns is fundamental for designing effective management strategies. Previous work on wood turtle abundance-habitat relationships focused on broad-scale habitat relationships in northeastern North America. However, regional differences in climate, habitat conditions, and land use patterns limit their applicability to much of the wood turtle’s Upper Midwest distribution. Much of our understanding of wood turtle activity patterns is based on radiotelemetry studies, which are biased towards …
Assessing The Efficacy Of Beaver Dam Analogs In Willow Restoration,
2023
University of Montana, Missoula
Assessing The Efficacy Of Beaver Dam Analogs In Willow Restoration, Hannah Hill, Dylan Ritter
Undergraduate Theses, Professional Papers, and Capstone Artifacts
Willow establishment is a necessary objective of stream restoration due to their role in bank stabilization, stream shading, and enhancement of biodiversity across the riparian zone. However, anecdotal observation indicated that establishment on beaver dam analogue (BDA) restored streams may be lacking. BDA’s mimic the pooling effects of natural beaver structures and are intended to help recreate historic conditions that existed before beaver extirpation. When working as intended, ecosystem function is restored, and a major aspect of this is willow presence. Because of these observations, as well as limited information on willow recruitment following restoration, we ask the following questions. …
