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Systematics And Comparative Genomics Of The Petaluridae (Odonata: Anisoptera), Ethan R. Tolman 2024 The Graduate Center, City University of New York

Systematics And Comparative Genomics Of The Petaluridae (Odonata: Anisoptera), Ethan R. Tolman

Dissertations, Theses, and Capstone Projects

The Anisoptera (Insecta: Odonata), or dragonflies exhibit diverse life histories and diversification patterns, with the family Petaluridae standing out as particularly unique. Comprising only 11 extant species, all of which inhabit increasingly threatened fen habitats, Petaluridae are known for their longevity, which can exceed five years, semi-terrestrial lifestyle, and remarkable physical size, ranking among the largest insects on Earth. Despite the evolutionary peculiarities of this family, no previous genomic studies have investigated the Petaluridae. This work presents two high-quality genome sequences and a targeted enrichment dataset to explore the chromosome architecture of Petaluridae, identifies genomic adaptations associated with their distinctive …


Lyme Disease In The Northeast: The Unintended Consequence Of Suburban Development, Hayden Neubert 2024 Fordham University

Lyme Disease In The Northeast: The Unintended Consequence Of Suburban Development, Hayden Neubert

Student Theses 2015-Present

This paper addresses the role of suburban development in the suburbs of the Northeastern United States in increasing human Lyme disease infection. Over the past 50 years, Lyme disease has become the most common vector-borne disease in the United States. In 2021, the two states with the most Lyme disease cases were New York and New Jersey, with a collective 6,524 cases, with Connecticut still representing 541 total cases. It is not a coincidence that case numbers are concentrated in suburban areas with high forest fragmentation. Chapter 1 of this essay analyzes how human land development disrupts bioregulatory ecosystem actors …


Multi-Type Branching Processes In Time-Varying Environments, Arash Jamshidpey 2024 Columbia University

Multi-Type Branching Processes In Time-Varying Environments, Arash Jamshidpey

Biology and Medicine Through Mathematics Conference

No abstract provided.


A New Case Of Pedipalp Regeneration In Scorpio Kruglovi Birula, 1910 (Scorpiones: Scorpionidae), Ersen A. Yağmur, Mehmet S. Kılıç, Eyüp Güneş 2024 Marshall University

A New Case Of Pedipalp Regeneration In Scorpio Kruglovi Birula, 1910 (Scorpiones: Scorpionidae), Ersen A. Yağmur, Mehmet S. Kılıç, Eyüp Güneş

Euscorpius

A new case of pedipalp regeneration is described and illustrated in a subadult female of Scorpio kruglovi Birula, 1910. A small, regenerated part of chela is observed on the anterior aspect of a normally developed right patella. This is the second published case of pedipalp regeneration.


Exploring The Evolution Of Altruistic Punishment Using A Pde Model For Multilevel Selection, Daniel Cooney 2024 Virginia Commonwealth University

Exploring The Evolution Of Altruistic Punishment Using A Pde Model For Multilevel Selection, Daniel Cooney

Biology and Medicine Through Mathematics Conference

No abstract provided.


Mathematically Modeling Stoichiometric Drivers Of Nitrogen Fixation, Rebecca Everett, Corday Selden, Mohamed Hatha Abdulla, Jabir Thajudeen, James Powell, Edwin Cruz-Rivera, Luca Schenone, Renn Schipper, Megan Berberich, Halvor Halvorson, Robinson Fulweiler, Amy Marcarelli, Thad Scott 2024 Haverford College

Mathematically Modeling Stoichiometric Drivers Of Nitrogen Fixation, Rebecca Everett, Corday Selden, Mohamed Hatha Abdulla, Jabir Thajudeen, James Powell, Edwin Cruz-Rivera, Luca Schenone, Renn Schipper, Megan Berberich, Halvor Halvorson, Robinson Fulweiler, Amy Marcarelli, Thad Scott

Biology and Medicine Through Mathematics Conference

No abstract provided.


Maturation Of An Off-Channel Habitat Concept To Conserve Native Fishes In The Lower Colorado River, Paul C. Marsh, Thomas E. Dowling, Thomas F. Turner, Megan J. Osborne, Brian R. Kesner 2024 Native Fish Lab at Marsh & Associates, LLC, Tempe, AZ 85282

Maturation Of An Off-Channel Habitat Concept To Conserve Native Fishes In The Lower Colorado River, Paul C. Marsh, Thomas E. Dowling, Thomas F. Turner, Megan J. Osborne, Brian R. Kesner

Monographs of the Western North American Naturalist

Two endemic, “large river” fishes of the Colorado River basin of western North America, bonytail Gila elegans and razorback sucker Xyrauchen texanus, are among several critically endangered species in the system. Wild populations of bonytail are gone, and there are no self-sustaining populations of razorback sucker anywhere; reproduction occurs but recruitment does not. Both species have been under intensive management in the Lower Colorado River since the 1980s. Today, with the single exception of Lake Mead, remaining populations are composed entirely of repatriated individuals that depend on stocking for their continued existence. In 2003, a conceptual off-channel habitat (OCH) …


The Effect Of Saltwater Stress On The Performance Of Cherry Tomatoes, Samarah R. Martin, Ivan Oyege, Kateel G. Shetty, Krish Jayachandran, Maruthi Sridhar Balaji Bhaskar 2024 Florida International University

The Effect Of Saltwater Stress On The Performance Of Cherry Tomatoes, Samarah R. Martin, Ivan Oyege, Kateel G. Shetty, Krish Jayachandran, Maruthi Sridhar Balaji Bhaskar

FIU Undergraduate Research Journal

Rising sea levels and saltwater intrusion in aquifers pose significant challenges for South Florida agriculture, leading to increased groundwater salinity and potential crop losses. Utilizing salttolerant crop species presents a potential solution for saline soils and regions with active saltwater intrusion. However, the effects of soil salinization through groundwater alone remains less studied. This research investigates the impact of short-term, below-ground saltwater stress on the growth, survival, and overall health of commonly grown cherry tomatoes (Solanum lycopersicum). The objectives of the study are to: 1) determine the impact of saline groundwater on tomato plant health and 2) compare the nutrient …


Designing Sustainable Systems Using Nature’S Toolbox, Matthew J. Hasenjager 2024 University of Tennessee, Knoxville

Designing Sustainable Systems Using Nature’S Toolbox, Matthew J. Hasenjager

Faculty Publications and Other Works -- Ecology and Evolutionary Biology

Supporting the Earth’s human population without destabilizing planetary processes is the central challenge of sustainability science. Key to achieving this goal is designing systems that are robust and resilient to dynamic and unpredictable conditions. Bioinspiration leverages naturally evolved solutions to address such challenges, yet a solution derived from one-to-one correspondence between a natural and artificial challenge can be limited in its broader application. Here we advocate for an approach to nature-inspired design that forgoes mimicking specific solutions in favor of identifying general design features that enable natural systems to function. These features are not specific to any naturally evolved solution …


Spawning Ecology And Spawning Site Fidelity Of Alligator Gar, Atractosteus Spatula, In The Fourche Lafave River: Implications For River-Floodplain Management And Alligator Gar Conservation, S. Reid Adams, Thomas E. Inebnit, Lindsey C. Lewis, Christopher J. Naus, Edward Kluender, Geoffry G. Spooner 2024 Department of Biology, University of Central Arkansas

Spawning Ecology And Spawning Site Fidelity Of Alligator Gar, Atractosteus Spatula, In The Fourche Lafave River: Implications For River-Floodplain Management And Alligator Gar Conservation, S. Reid Adams, Thomas E. Inebnit, Lindsey C. Lewis, Christopher J. Naus, Edward Kluender, Geoffry G. Spooner

Southeastern Fishes Council Proceedings

We studied the spawning ecology of Alligator Gar, Atractosteus spatula, in the Fourche LaFave River (FLR) of Arkansas to better understand their reproductive ecology and spawning resource requirements. Evidence of spawning was only observed in floodplain tributary habitats, particularly the small, adventitious headwater stream West Fork Mill Creek (WFMC). A mid-May to mid-June spawning season was observed for Alligator Gar in the FLR that corresponded with rising water levels (mostly due to backflooding from the Arkansas River) and increased water temperatures (> 20°C). Direct spawning observations at WFMC were made on 17 June 2007, 15 June 2008, 23 May …


Relationship Between Trunk Cross-Sectional Area Growth And Water Stress In Garry Oaks (Q. Garryana): A Species Of Conservation Concern, John Cochrane 2024 Western Oregon University

Relationship Between Trunk Cross-Sectional Area Growth And Water Stress In Garry Oaks (Q. Garryana): A Species Of Conservation Concern, John Cochrane

Student Research Symposium

In the Pacific Northwest, Quercus garryana (Garry oak trees) support over 627 native species. Garry oak natural habitat was originally maintained by indigenous practices but has been reduced to 5-10% of its range due to change in land management strategies. To support oak conservation, we need to understand heat and water affect the growth and physiology of this species. In this study, we created a fixed linear model of trunk cross-sectional growth with water stress (Ψ), photosynthetic water-use efficiency (δ13C), and leaf Carbon-Nitrogen ratio. We collected branch samples from the canopies of 47-64 mature Garry oaks in the …


Selection During Reproduction In Mimulus Guttatus, Desmond C. Willson, Karla de Lima Berg, Mitch Cruzan 2024 Portland State University

Selection During Reproduction In Mimulus Guttatus, Desmond C. Willson, Karla De Lima Berg, Mitch Cruzan

Student Research Symposium

A lack of genomic studies examining gametophytic selection and selective embryo abortion—which occur during the reproduction of angiosperms—leaves questions regarding the adaptive and evolutionary effects of these processes. Analyzing deviations from Mendelian segregation offers an avenue for identifying loci targeted by GS and SEA, and their contributions to purging of genetic load. However, other selective processes such as meiotic drive and cytonuclear interactions, as well as pollen and ovule abortion, can cause distortion. To distinguish the effects of GS and SEA from other causes of distortion, we will perform reciprocal crosses between highly homozygous and highly heterozygous individuals of Mimulus …


Phytoplankton Community Dynamics In The Northern California Current System, Kristin Forgrave 2024 Portland State University

Phytoplankton Community Dynamics In The Northern California Current System, Kristin Forgrave

Student Research Symposium

The Northern California Current system is a productive coastal ecosystem that encompasses a variety of temporal and spatial features. The photosynthetic microbial community plays a crucial role in supporting the rich ecosystem and economically important fisheries. My research integrates data across distance and two years to investigate the community composition of two major phytoplankton groups in this system: picocyanobacteria and picoeukaryotes. The abundances and sizes of the phytoplankton were measured using flow cytometry. Picoeukaryotes were found to be present at similar concentrations in both summer and winter. Abundances of both cell types were comparable in the winter, but picocyanobacteria were …


Ancient Wisdom, Modern Prosperity: Harnessing Traditional Ecological Knowledge To Revitalize Australia's Economy, Environment, And Human Wellbeing, Annabelle L. Baulch 2024 Fordham University

Ancient Wisdom, Modern Prosperity: Harnessing Traditional Ecological Knowledge To Revitalize Australia's Economy, Environment, And Human Wellbeing, Annabelle L. Baulch

Student Theses 2015-Present

This paper explores the traditional knowledge of Australia’s Indigenous people and how it can improve Australia's environment, health, and economic prosperity to shape a more sustainable future. Indigenous Australians managed the land for thousands of years; however, being forced off the land following European colonization resulted in terrible cultural, social, and environmental disruption for Aboriginal Australians and made conservation efforts difficult. Wildfires, imported species, mining, and agriculture is steadily destroying the Australian ecosystem, contributing to climate change, species extinction, and gaps in our cultural and ancestral knowledge. Chapter One overviews Australia's environmental issues; it uses quantitative data to explore the …


Reef Ecosystem Conservation For The Hawaiian Islands: The Impacts Of Ocean Warming And Acidification On Benthic Reef Populations, Samantha Roberts 2024 Fordham University

Reef Ecosystem Conservation For The Hawaiian Islands: The Impacts Of Ocean Warming And Acidification On Benthic Reef Populations, Samantha Roberts

Student Theses 2015-Present

This paper explores the anthropogenic effects of rapid climate change and ocean acidification on benthic coral populations along the Hawaiian archipelago. Moreover, the reliance of Hawaiian coastal communities on coral reefs for sustenance and economic prosperity is evaluated to determine the importance of reef ecosystem conservation for the prosperity of Hawaii. Chapter 1 introduces the importance of coral and supplies quantitative data on declining coral populations traditional to Hawaii, as a result of ocean warming and acidification. Empirical data from prior, prominent studies, combined with my own, will be discussed. Chapter 2 outlines the ecology of Hawaiian reef ecosystems, the …


Riparian Expansion Post-Restoration Efforts Along The Upper Clark Fork River, Makena Tanko 2024 Montana Technological University

Riparian Expansion Post-Restoration Efforts Along The Upper Clark Fork River, Makena Tanko

Graduate Theses & Non-Theses

Floodplain restoration is an intricate process aimed at promoting water quality, biodiversity, and maintaining ecological balance. However, mapping vegetation patterns on a restored floodplain can be challenging due to different geomorphic locations across a river sections, including flooding regimes, sediment characteristics, elevation, and ground water availability. This study investigates the drivers of vegetation succession in floodplains post-restoration along the Upper Clark Fork River, encompassing Phases 1, 2, 3, and 5. We analyzed key factors influencing vegetation response, including total canopy cover and woody vegetation health, in comparison to soil compaction, geomorphic location, distance from streambank, time post-restoration, and metal levels …


New Records Of Mesobuthus Rakhshanii Barahoei, 2022 In Iran (Scorpiones: Buthidae), Ersen A. Yağmur, Zhale Baghernavesi, Zahra Taherkhani, Parsa Akbari, Mohammad Moradi 2024 Marshall University

New Records Of Mesobuthus Rakhshanii Barahoei, 2022 In Iran (Scorpiones: Buthidae), Ersen A. Yağmur, Zhale Baghernavesi, Zahra Taherkhani, Parsa Akbari, Mohammad Moradi

Euscorpius

Mesobuthus rakhshanii Barahoei, 2022 (Scorpiones: Buthidae) was so far known only from the type locality in Sistan and Baluchestan Province, Iran. We give a list of numerous new records of this species from the same province. A map and detailed illustrations are provided.


Analyzing Phototaxis And Related Visual Behaviors Among Diverse Species Of Drosophila, Madeline M. Hill 2024 University of Nebraska-Lincoln

Analyzing Phototaxis And Related Visual Behaviors Among Diverse Species Of Drosophila, Madeline M. Hill

Honors Theses

Phototaxis and related visual behaviors can vary between species, and thus members of the genus Drosophila make an excellent study system to examine the evolution of vision. While some existing research points to these phototactic behaviors arising due to mating requirements or due to their species-specific ecology or environmental factors, there exists a lack of understanding as to why striking behavioral differences can exist between closely related species, or between members belonging to the same genus. The present research seeks to uncover the specifics regarding these discrepancies in visual evolution and aims to provide a foundation of knowledge about visual …


West Coast Rock Lobster Resource Harvest Strategy, Department of Primary Industries and Regional Development, Western Australia 2024 Department of Primary Industries and Regional Development, Western Australia

West Coast Rock Lobster Resource Harvest Strategy, Department Of Primary Industries And Regional Development, Western Australia

Fisheries management papers

Harvest strategies for Western Australia’s (WA) aquatic resources are formal documents developed by the Department of Primary Industries and Regional Development (DPIRD, the Department) to support decision-making processes that ensure the outcomes are consistent with the principles of Ecologically Sustainable Development (ESD; Fletcher 2002a) and Ecosystem Based Fisheries Management (EBFM; Fletcher et al. 2012). Harvest strategies are a key component of all contemporary fishery management systems and a requirement for certification under the Marine Stewardship Council (MSC). The objectives of ESD are reflected in the objectives of the Fish Resources Management Act 1994 (FRMA) and the Aquatic Resources Management Act …


Do Heat Waves Drive Natural Selection In Damselflies?, Adam Baranyk 2024 University of Arkansas, Fayetteville

Do Heat Waves Drive Natural Selection In Damselflies?, Adam Baranyk

Biological Sciences Undergraduate Honors Theses

Climate change has led to changes in both mean temperatures and temperature extremes over the recent years. These changes have had differential effects on animals throughout the world. Ectotherms depend on their external environment for thermal regulation, making them especially susceptible to temperature extremes. It is not yet clear whether there is a relationship between physical traits in ectotherms, and survivorship throughout a heat wave. That is, whether or not temperature extremes driven survival selection. In this study, a heat wave was simulated artificially using thermally regulated mesocosms at different temperatures (18°C, 22° C, 26° C, 30° C) with a …


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