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Articles 481 - 510 of 3460
Full-Text Articles in Biology
Diving At High Altitude: O2 Transport And Utilization In The Ruddy Duck And Torrent Duck In The Andes, Kevin G. Mccracken, Graham R. Scott, Luis Alza, Andrea Astie, Ciska Bakkeren, Emil Bautista, Mariana Bulgarella, Rebecca Cheek G. Cheek, Beverly A. Chua, Neal J. Dawson, Alexis Diaz, Catherine M. Ivy, Peter B. Frappell, Cecilia Kopuchian, Sabine L. Laguë, John N. Maina, Violeta Muñoz-Fuentes, Elizabeth R. Schell, Matthew M. Smith, Ryan J. Sprenger, Pablo L. Tubaro, Elizabeth R. Schell, Matthew M. Smith, Ryan J. Sprenger, Pablo L. Tubaro, Thomas Valqui, Roy E. Weber, Daniela Wilner, Robert E. Wilson, Julia M. York, William K. Milsom
Diving At High Altitude: O2 Transport And Utilization In The Ruddy Duck And Torrent Duck In The Andes, Kevin G. Mccracken, Graham R. Scott, Luis Alza, Andrea Astie, Ciska Bakkeren, Emil Bautista, Mariana Bulgarella, Rebecca Cheek G. Cheek, Beverly A. Chua, Neal J. Dawson, Alexis Diaz, Catherine M. Ivy, Peter B. Frappell, Cecilia Kopuchian, Sabine L. Laguë, John N. Maina, Violeta Muñoz-Fuentes, Elizabeth R. Schell, Matthew M. Smith, Ryan J. Sprenger, Pablo L. Tubaro, Elizabeth R. Schell, Matthew M. Smith, Ryan J. Sprenger, Pablo L. Tubaro, Thomas Valqui, Roy E. Weber, Daniela Wilner, Robert E. Wilson, Julia M. York, William K. Milsom
Occasional Papers of the Museum of Natural Science, Louisiana State University
Hypoxia and cold temperatures create unique physiological challenges for high-altitude organisms that can vary depending on lifestyle. While nearly all studies of air-breathing animals at high altitude are from terrestrial species, species that breath-hold dive underwater at high altitude encounter a very different set of selective pressures influencing their phenotype. The goal of this publication is to highlight the changes in O2 transport and utilization in high-altitude diving birds relative to divers at sea level, and the extent to which these changes are qualitatively distinct from phenotypic changes in non-diving species at high altitude. For example, while high capacities for …
Considerations And Applications Of Environmental Dna In Biodiversity Studies, Sarah Tomke
Considerations And Applications Of Environmental Dna In Biodiversity Studies, Sarah Tomke
Theses and Dissertations--Forestry and Natural Resources
Environmental DNA (eDNA) sampling—the detection of species through genetic material shed into the environment—has become an efficient and reliable method for biodiversity assessments. The method has grown in popularity due to its non-invasive and non-destructive nature, and has revolutionized monitoring efforts for rare, elusive, and cryptic species for which traditional sampling approaches are often costly and ineffective. Hundreds of studies have utilized this technique to study species occupancy, delineate distributions, and assess relative community composition. Although eDNA sampling is an effective strategy for many conservation and ecological studies, recently, light has been shed on some of its potential drawbacks and …
Occupancy Of The Little Grass Frog (Pseudacris Ocularis), An Overlooked Longleaf Endemic, In A Managed Landscape, Anna M. Humphrey
Occupancy Of The Little Grass Frog (Pseudacris Ocularis), An Overlooked Longleaf Endemic, In A Managed Landscape, Anna M. Humphrey
Theses, Dissertations and Capstones
Amphibians are declining globally, with many declines associated with habitat loss. The longleaf pine (Pinus palustris) ecosystem historically covered most of the southeastern United States and supports a host of endemic amphibians. This ecosystem has declined by over 97% in the last two hundred years and many associated species have declined with it. The Little Grass Frog (Pseudacris ocularis) is a longleaf pine endemic anuran that has been understudied and under-surveyed; almost no information is known on the ecology of this species and no population studies have been conducted. My goals were to create an acoustic …
An Aggregation Of The Pandalid Shrimp, Heterocarpus Ensifer, On Deep Reef Habitats Of The West Florida Slope, Eastern Gulf Of Mexico, Steve W. Ross
An Aggregation Of The Pandalid Shrimp, Heterocarpus Ensifer, On Deep Reef Habitats Of The West Florida Slope, Eastern Gulf Of Mexico, Steve W. Ross
Gulf and Caribbean Research
Heterocarpus ensifer A. Milne—Edwards (1881) (Crustacea: Pandalidae), armed nylon shrimp, is widely distributed in the western and eastern North Atlantic Ocean. In the western Atlantic this shrimp occurs from off North Carolina to Brazil and in the Gulf of Mexico (GOM), western Bahamas, and Caribbean Sea at depths of 170—885 m. Despite its widespread occurrence, ecology or biology information for this species are sparse, and in situ observations of abundance, behavior and habitat preferences are particularly lacking. During extensive submersible and ROV observations on and near deep—reefs in the north—central and eastern GOM, a remarkably large aggregation of H. ensifer …
Relationships Between Cliff Swallows (Petrochelidon Pyrrhonota) And Feather Coloration, Morphological Characteristics, And Colony Size, Sonja M. Brandt
Relationships Between Cliff Swallows (Petrochelidon Pyrrhonota) And Feather Coloration, Morphological Characteristics, And Colony Size, Sonja M. Brandt
Master's Theses or Doctor of Nursing Practice
Environmental stressors such as drought and roadways can strongly affect breeding birds. Cliff Swallows (Petrochelidon Pyrrhonota) are aerial insectivores that experience mortality from car collisions, because they often nest and hunt under bridges and road culverts. Individual traits that may convey social information, such as body condition, or feather coloration, might be associated with better coping around cars and other environmental stressors. Few studies have investigated relationships between coloration and other environmental stressors, such as water loss due to drought near the colony and foraging areas. Colony size can be heavily affected by various environmental factors such as water level …
Pcb Remediation In Transitional Floodplain Forests Along The Housatonic River, Soleil Laurin
Pcb Remediation In Transitional Floodplain Forests Along The Housatonic River, Soleil Laurin
Scripps Senior Theses
Human development affects natural environments in more ways than climate change, from the introduction of nonnative species and deforestation to pollution and urbanization. This is a case study examining the effects of PCB remediation on transitional floodplain forest along the Housatonic River in Western Massachusetts. The Housatonic River had previously been contaminated with PCBs and portions had been remediated. This study aims to determine the effects this remediation had on transitional floodplain forests, as well as provide a preliminary biodiversity assessment for sites that are planned to be remediated of PCBs by the Environmental Protection Agency. The study was carried …
When And Where Can Coastal Wetland Restoration Increase Carbon Sequestration As A Natural Climate Solution, Scott F. Jones, Ariane Arias-Ortiz, Dennis Baldocchi, Meagan Eagle, Daniel A. Friess, Catrina Gore, Greg Noe, Stefanie Nolte, Patty Oikawa, Adina Paytan, Jacqueline L. Raw, Brian J. Roberts, Kerrylee Rogers, Charles Schutte, Camille L. Stagg, Karen M. Thorne, Eric J. Ward, Lisamarie Windham-Myers, Erik S. Yando
When And Where Can Coastal Wetland Restoration Increase Carbon Sequestration As A Natural Climate Solution, Scott F. Jones, Ariane Arias-Ortiz, Dennis Baldocchi, Meagan Eagle, Daniel A. Friess, Catrina Gore, Greg Noe, Stefanie Nolte, Patty Oikawa, Adina Paytan, Jacqueline L. Raw, Brian J. Roberts, Kerrylee Rogers, Charles Schutte, Camille L. Stagg, Karen M. Thorne, Eric J. Ward, Lisamarie Windham-Myers, Erik S. Yando
Biological Sciences Faculty Publications
Coastal wetlands are hotspots of carbon sequestration, and their conservation and restoration can help to mitigate climate change. However, there remains uncertainty on when and where coastal wetland restoration can most effectively act as natural climate solutions (NCS). Here, we synthesize current understanding to illustrate the requirements for coastal wetland restoration to benefit climate, and discuss potential paths forward that address key uncertainties impeding implementation. To be effective as NCS, coastal wetland restoration projects will accrue climate cooling benefits that would not occur without management action (additionality), will be implementable (feasibility) and will persist over management-relevant timeframes (permanence). Several issues …
Long Term Trends In Mortality Rates Of A Smallmouth Bass Population, Caleb D. Anderson
Long Term Trends In Mortality Rates Of A Smallmouth Bass Population, Caleb D. Anderson
Journal of Earth and Life Science
Smallmouth bass Micropterus dolomieu are known as a popular sport fish for anglers. When a known smallmouth bass fishery appears to have a dwindling population, it raises questions about the population health. A common indicator of the health of the population is the mortality rate. By comparing mortality, conclusions can be made on whether smallmouth bass are dying at a different rate in the system over time. Therefore, the objective of this study was to see if there had been a significant change in smallmouth bass mortality over a span of thirty years in Round Lake (DOW:010204), Aitkin County, Minnesota. …
Relationship Between Northern Pike And Walleye Cpue In Minnesota Lakes, Simon Oslund
Relationship Between Northern Pike And Walleye Cpue In Minnesota Lakes, Simon Oslund
Journal of Earth and Life Science
Northern pike Esox lucius and walleye Sander vitreus are both top predators in freshwater systems. Due to their predatorial nature, high populations of one species can prohibit populations of the other species from thriving, specifically northern pike foraging on walleye. This information is tracked by the Minnesota Department of Natural Resources through catch per unit effort (CPUE). CPUE data was gathered for all lakes in Beltrami County, Minnesota, and a regression analysis was done to test for a relationship between pike and walleye. It was found that the relationship between northern pike and walleye CPUE was significant (P = 0.02). …
The Effects Of Length, Weight, Age, And Gender On Mercury Concentrations In Burbot In North-Central Minnesota Lakes, Liam Hanley
The Effects Of Length, Weight, Age, And Gender On Mercury Concentrations In Burbot In North-Central Minnesota Lakes, Liam Hanley
Journal of Earth and Life Science
Burbot Lota lota in north-central Minnesota lakes have the potential to reach large sizes and consume large volumes of prey. This caveat may make burbot susceptible to higher rates of biocontamination, bioaccumulation and biomagnification. The objective of this study was to determine how changes in age, length, gender, weight, and lake affect total mercury concentrations in burbot. In this experiment 28 burbot were angled from three lakes: Cass (n = 17), Winnibigoshish (n = 4), and Bad Medicine (n = 7). Then tissue samples were taken from each fish and were lyophilized and homogenized. Homogenized tissue samples were analyzed by …
Relationship Between Fishing Hours And Number Of Fish Harvested From Upper Red Lake, Dylan Ohlenkamp
Relationship Between Fishing Hours And Number Of Fish Harvested From Upper Red Lake, Dylan Ohlenkamp
Journal of Earth and Life Science
Total hours fishermen spend fishing and total amount of fish harvested per year are some of the most important pieces of knowledge gained from creel surveys. They provide crucial information that assesses fisheries mortality and pressure. MN DNR uses their results from creel surveys to improve or impose regulations, and to maintain healthy fisheries. Based on results from similar studies, there is expected to be a positive relationship between hours fished and fish harvested. To determine the relationship between these two variables on Upper Red Lake, data from two years were selected when the variables were at their highest and …
A Guide To Otoliths Of Minnesota Fishes, Baylor J. Short
A Guide To Otoliths Of Minnesota Fishes, Baylor J. Short
Journal of Earth and Life Science
Investigations into the diet patterns of piscivores can provide crucial information on predator-prey relationships, population dynamics, and responses to changing ecosystems. However, digestive processes often remove or alter physical characteristics that are traditionally used to identify consumed fish. This problem has been addressed to some degree with advances in molecular technologies, although these methods can be costly and require specific training and equipment to do so. In contrast, bony structures such as otoliths, vertebrae, cleithra, and others frequently have morphologies that are unique among families, genera, and species. Because these structures are resistant to digestion, they can be used to …
The Effect Of Triaenophorus Crassus On The Condition Of Coregonus Artedi, Alexander Surma
The Effect Of Triaenophorus Crassus On The Condition Of Coregonus Artedi, Alexander Surma
Journal of Earth and Life Science
Cisco Coregonus artedi is, historically, the largest commercial fishery in the Great Lakes. The species is also important to commercial and recreational fisheries in inland lakes. Tapeworm Triaenophorus crassus larvae embed themselves into the flesh of Ciscoes, rendering the fish unmarketable to humans. Triaenophorus crassus is common in inland waters such as Leech Lake and Cass Lake, MN. One Canadian researcher has suggested that the parasite negatively affects the growth and weight of Ciscoes. Poor condition can reduce fecundity, leading to lower recruitment rates. This would mean a detrimental impact on not only individual fish, but the health of …
Quantifying The Ecological Effects Of Salix Fragilis On Riparian Habitat In Kittitas County, Washington, Landon Shaffer
Quantifying The Ecological Effects Of Salix Fragilis On Riparian Habitat In Kittitas County, Washington, Landon Shaffer
All Master's Theses
Invasive species threaten plant community structure and function globally. Riparian areas, the zone near streams where water influences vegetation, are especially sensitive to invasive species colonization, suffering large-scale shifts in community composition. Salix fragilis (crack willow) is a nonnative riparian species abundant in the lower elevation tributaries of central Washington. Some speculate whether this willow should be listed as invasive in Washington, despite a lack of regional supporting evidence. I studied riparian communities dominated by either S. fragilis or native species in the Kittitas Valley and measured biodiversity, quantified differences in solar attenuation, and compared leaf decomposition rates to learn …
Assessing The Effects Of Remaining Northern California Kelp Forest Mesopredators On Purple Sea Urchin Abundance, Distribution, And Feeding Activity, Sandra E. Traverso
Assessing The Effects Of Remaining Northern California Kelp Forest Mesopredators On Purple Sea Urchin Abundance, Distribution, And Feeding Activity, Sandra E. Traverso
Cal Poly Humboldt theses and projects
Kelp forests are threatened by regional abiotic and biotic stressors, including overgrazing by sea urchins. On the north coast of California, purple sea urchins (Strongylocentrotus purpuratus) are prolific grazers of kelp and with the regional extinction of their main predator (sunflower stars, Pycnopodia helianthoides), it is unknown whether any remaining mesopredators could exert top-down control of purple urchin populations. Other known predators of purple urchins in northern California include rock crabs, which have been shown to control sea urchin populations in Atlantic urchin barrens and indirectly cause phase shifts back to kelp forests. Yet, little is known …
A Case Of Incipient Budding Speciation In The California Floristic Province, Infraspecific Divergence In Abronia Villosa, Eli J. Allen
A Case Of Incipient Budding Speciation In The California Floristic Province, Infraspecific Divergence In Abronia Villosa, Eli J. Allen
Cal Poly Humboldt theses and projects
Physical barriers to gene flow are the traditional evidence for species divergence. Conversely, there has been increasing acknowledgment of speciation in the face of gene flow as an evolutionary process. Budding speciation involves peripheral populations adapting to local ecological conditions, thereby budding off from a widespread progenitor species. Budding speciation is distinguished by ecological divergence and is generally evidenced by asymmetrical range size and nested phylogenetic relationships of sister species. The narrow endemic Abronia villosa var. aurita is adapted to montane sandy washes adjacent to its widespread sister variety, the desert dwelling var. villosa. Here, I tested the hypothesis …
Investigation Of L-Serine Synthesis And Transport As Stabilizing Feedback Mechanisms Within The Tsetse-Wigglesworthia Symbiosis, Ryan Phillips
Investigation Of L-Serine Synthesis And Transport As Stabilizing Feedback Mechanisms Within The Tsetse-Wigglesworthia Symbiosis, Ryan Phillips
Graduate Theses, Dissertations, and Problem Reports (ETD)
Tsetse flies (Glossina morsitans), which are the obligate vectors of Old-World trypanosomes (Trypanosoma spp.) that cause African trypanosomiasis, have a bacteriome that houses the intracellular endosymbiont Wigglesworthia glossinidia. The ancient coevolution of these species has led to the integration of Wigglesworthia metabolism into tsetse physiology and a subsequent reliance on nutrient exchange for maintaining the fitness of both partners. The establishment of this obligate mutualism has facilitated the emergence of feedback mechanisms that stabilize the symbiosis, such as that which involves the exchange of L-serine and B vitamins. The Gammaproteobacteria Wigglesworthia supplement B vitamins lacking …
The Influence Of Genes On The Migratory Timing Of Great Reed Warblers, Emily Fackler
The Influence Of Genes On The Migratory Timing Of Great Reed Warblers, Emily Fackler
Honors Undergraduate Theses
Many organisms migrate; however, there is a lack of knowledge on the mechanisms that drive migration timing, including which genes play a role. The great reed warbler (Acrocephalus arundinaceus), a migratory bird that breeds in Eurasia and overwinters in sub-Saharan Africa, is an excellent model to study the genetics of migration. Each season, some individuals migrate early, whereas others migrate later in the season. In other words, they exhibit differences in their migratory chronotypes. Past research has identified three candidate genes (TOP1, PEAK1, and CPNE4) that influence the migratory chronotypes of another avian species, …
Monitoring Faunal Responses To Biodegradable Oyster Reef Restoration Materials With Camera Traps, Tara L. Blanchard
Monitoring Faunal Responses To Biodegradable Oyster Reef Restoration Materials With Camera Traps, Tara L. Blanchard
Honors Undergraduate Theses
Restoration of the oyster reefs has become increasingly crucial due to great population declines around the globe. Intertidal oyster reefs provide essential foraging and loafing grounds to many faunal species, including several threatened/endangered wading bird species. Biodegradable oyster reef restoration materials have been introduced to avoid potential plastic pollution from traditional materials. Studies have shown success regarding oyster recruitment rates to these materials. However, their impacts on fauna using restored oyster reefs are unknown. This project aims to evaluate oyster reef restoration using biodegradable materials to increase faunal diversity, abundance, and foraging behaviors. Camera traps were deployed to observe fauna …
Interdisciplinary Learning: How Different Ways Of Thinking Can Fuel Passion And Expand Understanding., Allison Amy Peschek
Interdisciplinary Learning: How Different Ways Of Thinking Can Fuel Passion And Expand Understanding., Allison Amy Peschek
Undergraduate Theses, Professional Papers, and Capstone Artifacts
This Capstone project was created to show the profound experience resulting from an extended range of interdisciplinary learning, and how different methods, when paired together, can enhance a learning experience. This was a personal project of exploration into those different angles, and primarily focused on avenues of logical and creating learning, respectively. These methods have been implemented by this author often in the past, but this capstone will explore this concept further, as there is a lot of potential in combining these different methods and biases in learning, to both further passion and understanding as a learner, but to also …
Animating Animal Tracking Data In A Geospatial Context, Bruno V. Pinheiro
Animating Animal Tracking Data In A Geospatial Context, Bruno V. Pinheiro
Honors Undergraduate Theses
In the field of ecology, animal tracking is core to understanding an animal’s behavior, space-use requirements, and suitable habitat. Utilizing the software created by this project, it is possible to visualize tracking data in its spatial and temporal context. The source code is written in R and leverages the Continuous-Time Movement Modeling (CTMM) package for statistical analysis. Utilizing CTMM, predicted or simulated movement paths can be generated with the user only needing to input their data. The Keyhole Markup Language (KML) is used to write a file containing all the animation parameters the user desires, such as the number of …
Complex Dynamics Of Coral Gene Expression Responses To Low Ph Across Species, Veronica Z. Radice, Ana Martinez, Adina Paytan, Donald C. Potts, Daniel J. Barshis
Complex Dynamics Of Coral Gene Expression Responses To Low Ph Across Species, Veronica Z. Radice, Ana Martinez, Adina Paytan, Donald C. Potts, Daniel J. Barshis
Biological Sciences Faculty Publications
Coral capacity to tolerate low pH affects coral community composition and, ultimately, reef ecosystem function. Low pH submarine discharges (‘Ojo’; Yucatán, México) represent a natural laboratory to study plasticity and acclimatization to low pH in relation to ocean acidification. A previous >2‐year coral transplant experiment to ambient and low pH common garden sites revealed differential survivorship across species and sites, providing a framework to compare mechanistic responses to differential pH exposures. Here, we examined gene expression responses of transplants of three species of reef‐building corals (Porites astreoides, Porites porites and Siderastrea siderea) and their algal endosymbiont communities …
Effects Of Climate Change On Seed Germination May Contribute To Habitat Homogenization In Freshwater Forested Wetlands, Kori Carr, Xavier Ozowara, Taylor M. Sloey
Effects Of Climate Change On Seed Germination May Contribute To Habitat Homogenization In Freshwater Forested Wetlands, Kori Carr, Xavier Ozowara, Taylor M. Sloey
Biological Sciences Faculty Publications
Climate changes in temperate regions are expected to result in warmer, shorter winters in temperate latitudes. These changes may have consequences for germination of plant species that require a period of physiological dormancy. The effect of cold duration on seed germination has been investigated in a number of plant taxa, but has not been well studied in wetland and bottomland forest tree species, an ecosystem that is threatened by habitat homogenization. Our work sought to test the role of changing winter temperatures on seed germination in specialist (Nyssa aquatica and Taxodium distichum) and generalist (Acer rubrum and Liquidambar styraciflua) tree …
Screening H3 Histone Acetylation In A Wild Bird, The House Sparrow (Passer Domesticus), Daniella Ray
Screening H3 Histone Acetylation In A Wild Bird, The House Sparrow (Passer Domesticus), Daniella Ray
College of Graduate Studies: Theses & Dissertations
Epigenetic mechanisms are increasingly understood to have major impacts across ecology. However, one molecular epigenetic mechanism, DNA methylation, currently dominates the literature. A second mechanism, histone modification, is likely important to ecologically relevant phenotypes and thus warrants investigation, especially because molecular interplay between methylation and histone acetylation can strongly affect gene expression. There are a limited number of histone acetylation studies on non-model organisms, yet those that exist show that it can impact gene expression and phenotypic plasticity. Wild birds provide an excellent system to investigate histone acetylation, as free-living individuals must rapidly adjust to environmental change. Here, we screen …
The Sewage Microbiome Dynamics Of Different Serving Neighborhoods In Charleston, Illinois, Sandra Chiamaka Okoye
The Sewage Microbiome Dynamics Of Different Serving Neighborhoods In Charleston, Illinois, Sandra Chiamaka Okoye
Masters Theses
The complex microbial ecosystem within sewage systems holds significant implications for environmental and public health. Unlike studies on wastewater treatment plant microbiomes, upstream sewage systems have not been studied widely. This research investigated the dynamic sewage microbiome across diverse serving neighborhoods in Charleston, Illinois, encompassing residential, hospital, industrial, and university areas. Drawing upon recent advancements in microbiome research, the study aimed to unravel the spatial and temporal variations in microbial structures. Three times between June to December 2023 sewage samples were collected from manholes in the areas mentioned above. Community DNA was extracted and sequenced for the V4-V5 region of …
The Energetics Of Seasonality In Wild Diademed Sifaka (Propithecus Diadema): A Technical And Biological Validation Of Fecal Triiodothyronine Radioimmunassay, Casey Farmer
Graduate Research Theses & Dissertations
The energetic state of an animal has vital consequences for its fitness, but it can be difficult to detect through behavioral observations. The development of techniques to determine an animals’ energetic state non-invasively would allow conservation planners to rapidly assess the energy balance and conservation potential of individuals, groups, and populations. Thyroid hormones like triiodothyronine (T3) regulate and reflect metabolic state in mammals. T3 is a non-invasive biomarker that can be detected in feces and could potentially be used for this purpose. I perform the first validation of a commercially available T3 radioimmunoassay designed for humans on a wild strepsirrhine …
Evaluation Of Conservation Strategies For Blanding’S Turtles (Emydoidea Blandingii), Callie Klatt Golba
Evaluation Of Conservation Strategies For Blanding’S Turtles (Emydoidea Blandingii), Callie Klatt Golba
Graduate Research Theses & Dissertations
Across the globe, biodiversity is threatened due to anthropogenic changes to the environment and large numbers of freshwater species, especially turtles, are facing population declines. Resources for conservation are limited, making empirically based conservation planning of utmost importance. Effective management strategies incorporate relevant biological information to outline specific and feasible actions that will mitigate the greatest threats to a species. Blanding’s Turtles (Emydoidea blandingii) are a long-lived, semi-aquatic, freshwater species that are classified as endangered in Illinois and internationally. As with other species of concern, Blanding’s Turtles are threatened by habitat loss, fragmentation, and degradation. They are also threatened by …
Automatic Detection Of Birds In Images Acquired With Remotely Piloted Aircraft For Managing Wildlife Strikes To Civil Aircraft, Maurycio Rodrigues Oviedo, Flavio A. C. Mendonca Ph.D., Jose Cabrera, Cole A. Mcnall, Raymond Ayres, Ricardo Luís Barbosa, Rodrigo Gallis
Automatic Detection Of Birds In Images Acquired With Remotely Piloted Aircraft For Managing Wildlife Strikes To Civil Aircraft, Maurycio Rodrigues Oviedo, Flavio A. C. Mendonca Ph.D., Jose Cabrera, Cole A. Mcnall, Raymond Ayres, Ricardo Luís Barbosa, Rodrigo Gallis
International Journal of Aviation, Aeronautics, and Aerospace
Wildlife strikes represent a significant threat to aviation safety and economics, as evidenced by notable incidents such as the emergency landing of US Airways Flight 1549 in 2009. The Federal Aviation Administration (FAA) acknowledges this growing concern, as evidenced by its report on Wildlife Strikes to Civil Aircraft in the United States from 1990 to 2019.To address the need for improved risk management, airports conduct Wildlife Hazard Assessments (WHA), a laborious process typically relying on visual identification by Qualified Airport Wildlife Biologists (QAWB). However, technological advancements, such as Remotely Piloted Aircraft (RPA) and machine learning (ML), offer promising solutions to …
Documenting Plant Biodiversity At The Emu-Owned Parsons Center For Arts And Sciences, Emily Edwards
Documenting Plant Biodiversity At The Emu-Owned Parsons Center For Arts And Sciences, Emily Edwards
Master's Theses and Doctoral Dissertations
We present the first vascular plant species checklist for the Eastern Michigan-University-owned property called the Parsons Center for Arts and Sciences. A voucher for each plant species has been deposited in the Eastern Michigan College herbarium and collection data is digitized in the Consortium of Midwest Herbaria. A minimum of three images per species are also available on iNaturalist . The Consortium and iNaturalist databases are publicly available and provide georeferenced locations for each plant. One hundred seventy-one plant species (in 137 genera and 61 families) were documented and identified, representing about 15% of plant species and 41% of families …
Arousal Patterns, Fungal Loads, And Wing Damage In A Surviving Population Of Little Brown Bats (Myotis Lucifugus), Brooke A. Daly
Arousal Patterns, Fungal Loads, And Wing Damage In A Surviving Population Of Little Brown Bats (Myotis Lucifugus), Brooke A. Daly
Master's Theses and Doctoral Dissertations
Little brown bats (Myotis lucifugus) at Tippy Dam in Michigan have shown resilience to white-nose syndrome (WNS), which is caused by the fungus Pseudogymnoascus destructans. This study evaluated the impact of environment (temperature and moisture), pathogen virulence, and host susceptibility on survival. Host response was assessed using temperature-sensitive radio transmitters (n = 37) and ultraviolet photography (n = 57), while fungal load (n = 56) was evaluated through quantitative polymerase chain reaction (qPCR). High autumn temperatures (>10°C) favored growth of the fungus, while mid-hibernation temperature (3.2°C) was unfavorable. The mean torpor bout length (TBL) …