Digital Commons Network^™

Origin And Maintenance Of The Andean Bird Fauna, Elkin A. Tenorio

Dissertations, Theses, and Capstone Projects

The origin and maintenance of the tropical montane diversity have been evaluated over multiple decades using various techniques and perspectives. Despite major progress in understanding phylogenetic relationships, diversification patterns, distributional data, and general ecology in the Andean biota, large gaps in our understanding remain, particularly in the synthesis across scales. To fill these gaps, I aimed to explore patterns and processes that underlie species diversification in birds of the tropical Andes of South America by combining different approaches using phenotypic, phylogenetic, and genomic data in multiple temporal and spatial scales.

In the first chapter, I examined the macroevolutionary patterns of …

The Effect Of An Invasive Species (Lantana Camara) And A Fast-Growing Herb (Acanthus Pubescens) On The Plant And Animal Communities In Kibale National Park, Uganda, Kathleen Bufka

Theses and Dissertations

Fast-growing plant species, like Lantana camara and Acanthus pubescens, could threaten biodiversity in Kibale National Park, Uganda. I surveyed plants and wildlife in areas where these plants were frequently encountered compared to those areas where they are infrequent. I found mixed results based on plant traits and the animals considered. My findings support management efforts on these two species to prevent forest degradation.

Examining Components Of The Interpersonal Psychological Theory Of Suicide In A Clinical Sample Of Children With Suicidal Thoughts And Behaviors, Alana Brixner Nunes

Theses and Dissertations

Suicide is the second leading cause of death among 10- to 14-year-olds. Despite a need to identify risk factors for suicide among children, there is limited research on suicidal thoughts and behaviors (STBs) in childhood. The interpersonal psychological theory of suicide (IPTS) suggests that the desire for suicide emerges from perceived burdensomeness and thwarted belongingness and that the transition from suicide ideation (SI) to a suicide attempt (SA) results from an acquired capability for suicide. However, no research has examined whether the IPTS applies to suicidal thoughts and behaviors among children. The present research examined components of the IPTS in …

The Influence Of Environmental Change On Genetic Diversity Across Spatial And Taxonomic Scales, Connor M. French

Dissertations, Theses, and Capstone Projects

The spatial distribution of genetic diversity is of interest to biodiversity scientists and conservationists and is a fundamental metric of biodiversity. Genetic diversity patterns across spatial and taxonomic scales contain information about population and assemblage dynamics that can convey their resilience to environmental change. Ectotherms are especially linked to their environments and may be especially sensitive to fluctuations in the environment over time. Herein, I investigate global and regional patterns of genetic diversity in two groups of ectotherms, insects and lizards, to understand the relationship between environmental change and genetic diversity, from populations to assemblages. Overall, my research aims to …

Sex Differences In The Diets Of Forest-Dwelling Baboons (Papio Anubis), Kara Hartunian

Theses and Dissertations

The ability to eat and switch between many food sources is an adaptative feeding strategy utilized for meeting nutritional needs across different environments, seasons, and physiological conditions. Baboons (genus Papio) excel at both dietary flexibility and foraging selectively, and consequently have one of the most widespread geographic distributions in the Order. To further expand to our understanding of baboon feeding ecology, I analyzed foraging activity and the nutritional characteristics of the diets of the relatively understudied rainforest baboons (Papio anubis) living in Kibale National Park, Uganda. I also investigated if there are differences in food type choice …

The Effect Of The Lunar Cycle On The Demographics Of Asian Elephants Observed In Open Areas In A Protected Wildlife Sanctuary And Surrounding Crop Fields, Serene K. Rivera

Theses and Dissertations

Due to human development and habitat fragmentation, Asian elephants increasingly use human landscapes and encounter people. These interactions have led to negative interactions between humans and elephants, such as crop-raiding. Despite efforts to mitigate these conflicts, farmers have not been able to consistently protect their crops from elephant foraging. Therefore, it is important to understand elephant behavior in these landscapes to help create long term mitigation plans. Specifically, research regarding demographic patterns in Asian elephants’ perceived predation risk can inform wild elephant management. This study used camera traps in Salakpra Wildlife Sanctuary in Kanchanaburi, Thailand to observe the wild Asian …

Restoring, Protecting, And Expanding Abortion Access In The United States: Seeking Consensus Through The Delphi Method, Sarah Pickering

Dissertations and Theses

Background: The Dobbs v. Jackson Women’s Health Organization Supreme Court decision exacerbated inequitable access to abortion in the US. Agreement is needed on which strategies should be prioritized to restore, protect, and expand abortion access.

Methods: We convened a multidisciplinary, geographically diverse Delphi panel of clinical, research, policy, legal, and advocacy experts to reach consensus (i.e., agreement >67%) on recommended actions. Using feedback from three rounds of surveys, and input from a select expert advisory group (N=10), we iteratively refined the statements and recommendations.

Results: The panel (N=85) developed 25 consensus statements and 32 recommendations for action by advocates, funders, …

Application Of Methods To Population-Based Surveys To Reduce Bias In Estimates Of Sars-Cov-2 Infection Burden In The Population, Saba Qasmieh

Dissertations and Theses

BACKGROUND: Population-based surveys designed to randomly sample the population can be a critical and complementary tool to traditional surveillance approaches. Probability-based surveys enable the measurement of SARS-CoV-2 testing and outcomes that avoid issues around self-selection into testing, making them an effective approach to address ascertainment bias in passive surveillance. For surveys to be a useful and reliable surveillance tool for understanding the burden and distribution of SARS-CoV-2 infection, they need to capture prevalence estimates that are both valid and reliable to be optimally informative for public health measures. The dissertation was undertaken to address three main gaps that have implications …

A Mixed Methods Approach To Understanding The Links Between Mining, Climate Change And Selected Health Outcomes In India, Mary J. Cheruvillil

Dissertations and Theses

Despite ample evidence of the significant role that mining activities play in determining health outcomes, in India there is a dearth of comprehensive health studies that draw linkages between mining and health. The purpose of the following study is to investigate the impact of mining activities on population health in India using three different methods: ecological multivariable regression, exploratory spatial data analysis (ESDA) and content analysis of government documents using a phenomenological approach. The first aim uses the ecological multivariable regression to examine associations between mining activities and children’s malnutrition outcomes at the district level. Census data, the Demographic Health …

Midwest Ecological Study Outlined The Neighbourhood Literacy Environment And The Inequitable Access Children Have To Books In Public Library Branches, Nandi Prince

Publications and Research

A Review of: Crosh, C., Hutton, J., Szumlas, G., Xu, Y., Beck, A., & Riley, C. (2022). Inequities in public library branch access and children’s book circulation in a Midwestern American city. The International Journal of Information, Diversity, & Inclusion (IJIDI), 6(3), 68-81. https://doi.org/10.33137/ijidi.v6i4.38127

Environmental Drivers Of Dispersal In Black-And-White Ruffed Lemurs (Varecia Variegata), Amanda Mancini

Dissertations, Theses, and Capstone Projects

Dispersal is a fundamental aspect of primates’ lives, influencing population connectivity through gene flow, driving community structure and assembly, and having important consequences for adaptation and speciation. Primates disperse within an environmental context, with both intervening and local environmental factors affecting the motivation, capacity, timing, and success of dispersal at all phases. Direct evaluations of primate dispersal are challenging given the rarity of dispersal events and the large distances that animals often settle from their departure site, therefore indirect measures– such as the use of population genetic data– are more common.

The field of landscape genetics enables researchers to combine …

Futures On Dry Ground: Anthropology And Coastal Planning, Theodore Hilton, Sheehan Moore

Publications and Research

Around the world, governments, industry, and other actors are creating plans to save coasts from environmental crisis. Louisiana is one prominent example: levees and other measures protect oil and gas infrastructure from inundation as the wetlands buffer rapidly erodes—in large part due to that same industry. The state’s primary answer to land loss is a $50 billion Coastal Master Plan. To illuminate such responses in Louisiana and globally, this article reviews emerging literature and frames an anthropology of coastal planning around three themes: (1) novel orientations toward time and space, (2) the reproduction of power and capital in the name …

Csi Botany: Dna Barcode “Fingerprints” Identify Cryptic Urban Flora, Luis R. Vega

Theses and Dissertations

As short genomic markers, DNA barcodes can play a role in conservation by identifying cryptic species and hybrids when morphological approaches fall short. Here we present our application of barcodes to the identities of two wetland taxa as part of an ongoing floristic inventory of Van Cortlandt Park (VCP), Bronx, NY. Previous barcode data by Marriott et al. (2018) identified the VCP lake water lily as the exotic Nymphaea alba, rather than the native N. odorata as historically described. In addition, cattails in the park were historically identified as the native Typha latifolia and the exotic T. angustifolia …

Phylogenetic Diversity Of Animal Oral And Gastrointestinal Viromes Useful In Surveillance Of Zoonoses, Anthony Michael Esposito, Michelle Marie Esposito, Albert Ptashnik

Publications and Research

Great emphasis has been placed on bacterial microbiomes in human and animal systems. In recent years, advances in metagenomics have allowed for the detection and characterization of more and more native viral particles also residing in these organisms. The digestive tracts of animals and humans—from the oral cavity, to the gut, to fecal excretions—have become one such area of interest. Next-generation sequencing and bioinformatic analyses have uncovered vast phylogenetic virome diversity in companion animals, such as dogs and cats, as well as farm animals and wildlife such as bats. Zoonotic and arthropod-borne illnesses remain major causes of worldwide outbreaks, as …

Gang Culture And Their Territorial Space: Graffiti Analysis Using Geographical Information Systems (Gis), Christian F. Delgado

Theses and Dissertations

The purpose of this study is to understand gang culture and how gangs come to define their territorial space. This thesis will focus on identifying gang spaces by utilizing geographic techniques to aid in determining where high gang activity and/or crime is taking place. This will be done by point pattern, data analysis, visualization analysis, and heat mapping on complaints, arrest, shooting, and graffiti data. This research has been conducted deductively, as it will use the theories mentioned in the literature review to define hypotheses.

Gangs are known for their violent and disruptive behavior. They ravage community resources and introduce …

Factors Associated With Racial And Ethnic Disparities In Cesarean Delivery Among Women With Low-Risk Pregnancies At New York City Hospitals, 2012-2017, Ellen Brazier

Dissertations and Theses

BACKGROUND: While Cesarean delivery is a life-saving procedure when certain complications arise, it is associated with increased risks of maternal mortality and morbidity, as well as neonatal and childhood morbidities, and increased risks for women during subsequent pregnancies. Stark and persistent racial/ethnic disparities in Cesarean delivery that are not explained by clinical risks raise concerns about overuse of the procedure, as well as the contribution of potentially avoidable Cesareans to disparities in maternal mortality and morbidity. Understanding the extent to which disparities in Cesarean delivery may be attributable to differences in care during labor is critical for addressing these disparities. …

Poly(Β-Gal-Thr): A New Scalable Synthetic Mucin, Manuel A. Lema

Dissertations and Theses

A method for the preparation of glycosylated polypeptides via the nucleophilic ring-opening polymerization of a glycosylated N-carboxyanhydride (NCA) monomer is reported. The synthesis of 2,3,4,6-tetraacetyl-β-galactose-threonine N-carboxyanhydride (β-AcO-Gal-Thr-NCA) monomer in 5 steps with an 8 % overall yield is described, and the single-crystal X-ray structure is provided. The effect of a series of Ni⁰-based organometallic initiators, nucleophilic amine initiators, co-catalysts, and solvents on the polymerization were explored. The kinetics of the three most promising conditions were studied in greater detail. The conditions that provided the highest yield, low polydispersity (Ð), and …

The Lodge In The Wilderness: Ecologies Of Contemplation In British Romantic Poetry, Sean M. Nolan

Dissertations, Theses, and Capstone Projects

This dissertation argues that contemplation is often overlooked in studies of British Romantic poetry. By the late 1700s, changing commercial and agricultural practices, industrialism, secularization, and utilitarianism emphasizing industriousness coalesced to uproot established discourses of selfhood and leisure, and effected crises of individuation in Romantic poetry and poetics. Closely reading poems and writing about poetry composed between the 1780s and 1830s by William Cowper, George Crabbe, Robert Bloomfield, Charlotte Smith, William Wordsworth, Samuel Taylor Coleridge, and John Stuart Mill, I probe the relationship between aesthetic, ethical, and emotional responses to depictions of toil, idleness, and leisure. I argue that ecologies …

Are Giant Pandas (Ailuropoda Melanoleuca) Averse To Inequity?, Miranda R. Trapani

Theses and Dissertations

Inequity aversion, a negative response to situations of unequal reward distribution, is a cognitive trait usually seen in social species. This capacity is thought to regulate cooperative relationships in intelligent, cognitively flexible animals. Giant pandas are a unique case in that wild populations are characterized as nonsocial, however captive populations are socially housed until sexual maturity. This allows for the study of a nonsocial species in a social context and thus the assessment of socio-cognitive flexibility across evolutionarily distant taxa. Here, we assessed whether the giant panda (Ailuropoda melanoleuca) displays inequity aversion by testing ten juveniles living at …

A Multi‑Disciplinary Comparison Of Great Ape Gut Microbiota In A Central African Forest And European Zoo, Victor Narat, Katherine R. Amato, Noémie Ranger, Maud Salmona, Séverine Mercier‑Delarue, Stephanie Rupp, Philippe Ambata, Richard Njouom, François Simon, Tamara Giles‑Vernick, Jérôme Legoff

Publications and Research

Comparisons of mammalian gut microbiota across different environmental conditions shed light on the diversity and composition of gut bacteriome and suggest consequences for human and animal health. Gut bacteriome comparisons across different environments diverge in their results, showing no generalizable patterns linking habitat and dietary degradation with bacterial diversity. The challenge in drawing general conclusions from such studies lies in the broad terms describing diverse habitats (“wild”, “captive”, “pristine”). We conducted 16S ribosomal RNA gene sequencing to characterize intestinal microbiota of free-ranging sympatric chimpanzees and gorillas in southeastern Cameroon and sympatric chimpanzees and gorillas in a European zoo. We conducted …

Hypogean Communities As Cybernetic Systems: Implications For The Evolution Of Cave Biotas, Aldemaro Romero Jr.

Publications and Research

Ramón Margalef proposed in 1968 that ecosystems could be better understood if they were viewed as cybernetic systems. I tested this hypothesis in the case of hypogean ecosystems using available pieces of evidence. I looked on how information on feedbacks, stability, succession, organization, diversity, and energy flows in the hypogean environment fit the cybernetics hypothesis. The results were that there are convincing arguments that the application of the concept of cybernetics in biospeleology can be beneficial to broadening our understanding of cave biota in terms of their structure. I also make the case that this approach can provide more clarity …

Investigation Of An Elevational Gradient Reveals Strong Differences Between Bacterial And Eukaryotic Communities Coinhabiting Nepenthes Phytotelmata, Kadeem J. Gilbert, Leonora S. Bittleston, Mark Arcebal K. Naive, Anthony E. Kiszewski, Perry Archival C. Buenavente, David J. Lohman, Naomi E. Pierce

Publications and Research

Elevation is an important determinant of ecological community composition. It integrates several abiotic features and leads to strong, repeatable patterns of community structure, including changes in the abundance and richness of numerous taxa. However, the influence of elevational gradients on microbes is understudied relative to plants and animals. To compare the influence of elevation on multiple taxa simultaneously, we sampled phytotelm communities within a tropical pitcher plant (Nepenthes mindanaoensis) along a gradient from 400 to 1200 m a.s.l. We use a combination of metabarcoding and physical counts to assess diversity and richness of bacteria, micro-eukaryotes, and arthropods, and compare the …

Evolutionary Traits That Enable Scleractinian Corals To Survive Mass Extinction Events, Gal Dishon, Michal Grossowicz, Michael Krom, Gilad Guy, David F. Gruber, Dan Tchernov

Publications and Research

Scleractinian “stony” corals are major habitat engineers, whose skeletons form the framework for the highly diverse, yet increasingly threatened, coral reef ecosystem. Fossil coral skeletons also present a rich record that enables paleontological analysis of coral origins, tracing them back to the Triassic (~241 Myr). While numerous invertebrate lineages were eradicated at the last major mass extinction boundary, the Cretaceous-Tertiary/K-T (66 Myr), a number of Scleractinian corals survived. We review this history and assess traits correlated with K-T mass extinction survival. Disaster-related “survival” traits that emerged from our analysis are: (1) deep water residing (>100 m); (2) cosmopolitan distributions, …

More Than Meets The Eye: A Taxonomic Revision Of The Nearctic Species In The Eye-Gnat Genus Amiota Loew (Diptera: Drosophilidae), Lance E. Jones

Dissertations and Theses

Thorough biotic inventories are still needed even in families as seemingly well-studied as fruit flies (Diptera: Drosophilidae). Drosophilidae have had an outsize effect on the history of biology because of their pivotal role in the study of genetics, development, and evolution. Even with more than a century of intensive study, large gaps remain in our understanding of diversity in this fly family, including well-studied areas such as North America. This thesis presents a taxonomic revision of the Nearctic species of the genus Amiota Loew. Twenty-three species are identified as being new to science for publication at a later date. This …

Temporal Changes In Abundance–Occupancy Relationships Over 40 Years, Lisa L. Manne, Richard R. Veit

Publications and Research

1. Abundance–occupancy (A–O) relationships are widely documented for many organismal groups and regions, and have been used to gain an understanding of regional population and community trends. Monitoring changes in abundance and occupancy over time may be what is required to document changes in conservation status and needs for some species, communities, or areas.
2. We hypothesize that if there is a higher proportion of declining species in one group of species compared with another (e.g., migratory species vs. permanent residents), then a consequence of that difference will be vastly different abundance–occupancy relationships. If this difference persists through time, then the resulting …

Burdern Of Chronic Health Conditions And Healthcare Utilization Among Mobile Populations In Sub-Saharan Africa, Elizabeth M. Ortiz

Dissertations and Theses

Background: Much of public health research in sub-Saharan Africa on mobile occupations, such as truck drivers and sex workers, has focused on HIV risk. However, evidence is emerging to suggest that the HIV epidemic among these groups is coupled with a high prevalence of chronic health conditions (CHC), specifically hypertension, diabetes, and obesity. For people living with HIV, increased risk of CHC may also be linked to HIV-related chronic inflammatory cascade. In Africa, there has been little research on CHC risk factors or patterns of healthcare utilization among mobile populations. Therefore, the objectives of this study are to examine the …

Exploring The Structural Effects On The Lethal Violence At The U.S. Counties Under The Situational Action Theory: An Application Of Multivariable Spatial Regression Model, Yunho Yeom

Dissertations, Theses, and Capstone Projects

Since the stream analogy (Unnithan, Corzine, Huff-Corzine, & Whitt, 1994) and the frustration-aggression approach (Henry & Short, 1954) in lethal violence phenomenon analysis, several scholars have integrated theories from outside of their fields of study to understand lethal violence under a single theoretical framework. Some of these researchers have focused on deteriorating socioeconomic conditions and the collective attributional style when explaining the causes of lethal violence; others have failed to assume the non-independence of observation among contextual predictors. Recognizing these shortcomings, this study integrates the social components of situational action theory to examine their mediating effects on the relationship between …

Multi-Scale Predictors Of Parasite Risk In Wild Male Savanna Baboons (Papio Cynocephalus), Bobby Habig, David A.W.A.M. Jansen, Mercy Y. Akinyi, Laurence R. Gesquiere, Susan C. Alberts, Elizabeth A. Archie

Publications and Research

Several factors are thought to shape male parasite risk in polygynous and polygynandrous mammals, including male-male competition, investment in potentially immunosuppressive hormones, and dispersal. Parasitism is also driven by processes occurring at larger scales, including host social groups and populations. To date, studies that test parasite-related costs of male behavior at all three scales—individual hosts, social groups, and the host population—remain rare. To fill this gap, we investigated multi-scale predictors of helminth parasitism in 97 male savanna baboons (Papio cynocephalus) living in the Amboseli ecosystem in Kenya over a 5-year span. Controlling for multi-scale processes, we found that many of …

“Don’T Buy Where You Can’T Work:” Protest And Riot In Harlem, 1932 -1935, Christie Anderson

Theses and Dissertations

In the 1930’s, Harlem joined together to participate in a “Don’t Buy Where You Can’t Work” campaign, to gain agency in their community. Store owners and legal decisions would block these efforts. This work explores the failure of this movement’s impact on the Riot of 1935.

Exploring Local Environmental Factors Influencing Geographic Distribution Of Black-Legged Tick Questing Activity, Chong Di

Theses and Dissertations

The deer tick (Ixodes scapularis or I. scapularis), also known as the black-legged tick, is the primary vector that transmits Lyme Disease (LD) in Northeastern United States. To contain the geographic expansion of Lyme disease ticks across the US in recent decades, ecological studies have been conducted to understand the biotic and abiotic environmental factors affecting tick activity. We observed in preliminary surveys that the tick host-seeking activity varies across small local areas. The primary objective of this project is to identify the environmental factors that impact deer tick questing activities at the micro-geographic scale. From 2017-2018, we …