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Articles 751 - 780 of 19670
Full-Text Articles in Entire DC Network
Thermal Physiology Of The Giant Day Gecko, Phelsuma Grandis, Infinity Alvarez
Thermal Physiology Of The Giant Day Gecko, Phelsuma Grandis, Infinity Alvarez
Masters Theses (Archived)
Ectotherms rely on their environment to regulate and maintain their body temperature. For this reason, environmental fluctuations strongly impact their biology. Lizards are ectotherms that are suitable models to investigate thermal physiology. However, the bulk of this research has been studied using new world Anolis lizards. In this study, the giant day gecko, (P.grandis), native to Madagascar but invasive in Florida, was selected as a model for comparison. In our physiotype of P.grandis we included measurements such as metabolic rates, sprint speed at relevant temperatures, thermal preference, critical thermal minimum, and voluntary thermal maximum. Our findings showed that …
Participatory Science Newsletter 2025_05_20, Mairi Poisson, Malin Clyde, Alyson L. Eberhardt
Participatory Science Newsletter 2025_05_20, Mairi Poisson, Malin Clyde, Alyson L. Eberhardt
Participatory Science News
In this edition of the UNH Participatory Sciences Newsletter, we offer news and resources on The Power of Participatory Sciences. These include a story about UNH graduate student Lauren White's work using participatory science data about horseshoe crab spawning in the Great Bay. Another story highlights UNH's Coastal Research Volunteers Beach Profiling Project and another outlines how many UNH researchers at UNH are working with local communities to find solutions to environmental problems. A final article shares information about the 2025 conference for the Association for Advancing Participatory Sciences and the poster presented by scholars and students from UNH.
Mate Choice And Movement Ecology Of Plegadis Ibis In Louisiana, Ryan T. Klutts
Mate Choice And Movement Ecology Of Plegadis Ibis In Louisiana, Ryan T. Klutts
LSU Master's Theses
In 1817, George Ord documented the first North American records of Glossy Ibis (Plegadis falcinellus), a species native to the Old World. Over the next 200 years, Glossy Ibis expanded its breeding range to include the Atlantic coast to southernmost Florida and thence up the Gulf coast to eastern Texas. Forty-five to 75 years ago, its range expansion brought it into secondary contact with White-faced Ibis (P. chihi) in Louisiana, a native species whose breeding range includes freshwater wetlands in Louisiana and eastern Texas. Hybridization between the two species resulted in a large hybrid zone in southern Louisiana, providing an …
Pollinator Plant Communities Within Restored Montane Longleaf Pine Ecosystems, Hanen Van Rossem
Pollinator Plant Communities Within Restored Montane Longleaf Pine Ecosystems, Hanen Van Rossem
Master's Theses
Historically the fire-dependent and biodiverse longleaf pine (Pinus palustris) ecosystem was the dominant ecosystem of the Southeastern US. This ecosystem’s range was massively reduced due to land conversion and fire exclusion, causing the decline of many native species. Efforts to restore and protect longleaf pine stands are now ongoing with the goal of expanding habitat and refuge for threatened species. Differences in restoration practices and prior land use may influence the extent to which restored habitat patches can support pollinators and their plants. This study compared pollinator plant biodiversity between restored neighboring montane longleaf pine stands that differed in …
A Phylogenomic Investigation Of The Historical Biogeography Of Livebearers (Cyprinodontiformes: Poeciliidae), Sheila Rodríguez Machado
A Phylogenomic Investigation Of The Historical Biogeography Of Livebearers (Cyprinodontiformes: Poeciliidae), Sheila Rodríguez Machado
LSU Doctoral Dissertations
The Neotropics contain several biodiversity hotspots and harbor the highest diversity of freshwater fishes globally. Yet, recognizing the patterns and processes driving this richness remains a challenge. Similarly, all groups and subregions have not received the same attention, especially in the genomics era. Addressing these knowledge gaps will help us to better understand the region’s evolutionary and biogeographic complexity. The goal of this dissertation is to examine phylogenetic and biogeographic patterns of Neotropical freshwater fishes, with emphasis on the Greater Antilles, across multiple taxonomic and geographic scales. To achieve this goal, I generated a genomic dataset of hundreds of ultraconserved …
Causes Of Heterozygosity Excess: The Case Of Mexican Populations Of Populus Tremuloides, Javier Hernández-Velasco, José Ciro Hernández-Díaz, Sergio Leonel Simental-Rodríguez, Juan P. Jaramillo-Correa, David S. Gernandt, José Jesús Vargas-Hernández, Ilga Porth, Roos Goessen, M. Socorro Gonzáles-Elizondo, Matthias Fladung, Cuauhtémoc Sáenz-Romero, José Guadalupe Martínez-Ávalos, Artemio Carrillo-Parra, Eduardo Mendoza-Maya, Arnulfo Blanco-García, Christian Wehenkel
Causes Of Heterozygosity Excess: The Case Of Mexican Populations Of Populus Tremuloides, Javier Hernández-Velasco, José Ciro Hernández-Díaz, Sergio Leonel Simental-Rodríguez, Juan P. Jaramillo-Correa, David S. Gernandt, José Jesús Vargas-Hernández, Ilga Porth, Roos Goessen, M. Socorro Gonzáles-Elizondo, Matthias Fladung, Cuauhtémoc Sáenz-Romero, José Guadalupe Martínez-Ávalos, Artemio Carrillo-Parra, Eduardo Mendoza-Maya, Arnulfo Blanco-García, Christian Wehenkel
Aspen Bibliography
The presence of heterozygous individuals in a population is crucial for maintaining genetic diversity, which can positively affect fitness and adaptability to environmental changes. While inbreeding generally reduces the proportion of heterozygous individuals in a population, polyploidy tends to increase the proportion. North American Populus tremuloides is one of the most widely distributed and ecologically important tree species in the Northern Hemisphere. However, genetic variation in Mexican populations of P. tremuloides, including the genetic signatures of their adaptation to a variety of environments, remains largely uncharacterized. The aim of this study was to analyze how inbreeding coefficient (F …
Sex, Skulls, And Selection: An Exploration Of Blakely Island's Deer Population And Their Ecology Through Genetic Sex Differentiation Of Juvenile Crania, Blair P. Graves
Sex, Skulls, And Selection: An Exploration Of Blakely Island's Deer Population And Their Ecology Through Genetic Sex Differentiation Of Juvenile Crania, Blair P. Graves
Honors Projects
As an isolated landmass with no natural predators, Blakely Island serves as an effective study site for the study of evolutionary factors relating to insular populations of large mammals. A disparity in the adult sex ratio of local deer has been observed, but the demographics of juveniles must still be ascertained through genetic methods. This study aims to further research concerning the development of a replicable and non-toxic procedure through which undergraduate students can identify the sex of numerous juvenile deer crania. Specifically, differing decalcification lengths, DNA extraction kit methods, and amelogenin primer sets were evaluated for relative success in …
Balancing Burrowing Owl (Athene Cunicularia Hypugaea) Protections While Maintaining Renewable Energy Development Within The San Joaquin Valley, Madison Lenzi Mcginn
Balancing Burrowing Owl (Athene Cunicularia Hypugaea) Protections While Maintaining Renewable Energy Development Within The San Joaquin Valley, Madison Lenzi Mcginn
Master's Projects and Capstones
Balancing the needs of wildlife and people has long been a complex challenge. The San Joaquin Valley exemplifies this tension, as space for agriculture and urbanization compete for land use of native grasslands– often resulting in the conversion of grasslands for agriculture fields, commercialized areas, or energy development. With an increasing number of agricultural landscapes going fallow and the passing of SB-100 in 2018, solar farm development has emerged as an attractive option to offset financial losses from unproductive farmland. However, the same landscapes favored for solar development also provide suitable habitat for sensitive species such the western burrowing owl …
Analyzing Ballast Water Treatments, Invasive Species, And Pathogens, And A Decade-Long Analysis On The San Francisco And Baltimore Ports, Jasmin Ibarra-Cortes
Analyzing Ballast Water Treatments, Invasive Species, And Pathogens, And A Decade-Long Analysis On The San Francisco And Baltimore Ports, Jasmin Ibarra-Cortes
Master's Projects and Capstones
Installation of advanced technologies to treat ballast water on ships is necessary to meet current ballast water management standards and reduce the secondary spread of invasive species during intracoastal voyages. This research includes a literature review on non-native aquatic species, particularly diapausing eggs, and available treatment methods for installation. A comparative analysis from 2014 - 2024 on bulker, tanker, and container vessels arriving coastwise to the ports of San Francisco and Baltimore was performed to evaluate treatment installation trends, traffic patterns, and the effectiveness of treatment(s) on targeting diapausing eggs. Use of ultraviolet (UV) radiation combined with filtration has increased …
Plastic In The Pack: Assessing Microplastic Risk To Urban Coyotes (Canis Latrans) In The San Francisco Bay Area, Elaina E. Herrmann
Plastic In The Pack: Assessing Microplastic Risk To Urban Coyotes (Canis Latrans) In The San Francisco Bay Area, Elaina E. Herrmann
Master's Projects and Capstones
Microplastics are an emerging concern worldwide. However, their impact on terrestrial mammals, such as Canis latrans (coyotes), has yet to be extensively studied. Coyotes are unique in their ability to adapt to urban environments and have recently begun bridging the gap between marine and terrestrial food webs. This research examines the potential sources and impact of microplastic exposure in urban coyotes in the San Francisco Bay Area and possible food web impacts through literature synthesis and Geographic Information System (GIS) mapping. This research examined potential mechanisms for direct and trophic microplastic uptake by coyotes resulting from the anthropogenic, terrestrial, and …
Turtle Creek Tree Restoration Project, Rebecca Beneroff, Risa Kanefsky, Max Dicerbo, Pj Newhart, Amanda Mitchell
Turtle Creek Tree Restoration Project, Rebecca Beneroff, Risa Kanefsky, Max Dicerbo, Pj Newhart, Amanda Mitchell
Final Reports in ENST 411: Environmental Community Projects
Over the course of this project our group members Rebecca, Max, PJ, Amanda, and Risa worked closely with Jim Knight and Brian Auman from Turtle Creek Park to help research, plan, and execute a tree transplanting event that would be efficiently implemented and environmentally sound. This work involved extensive preparatory work in the park including soil testing, bare leaf tree identification, tree and shrub species characterization, and recommendation. The entire process was rooted in the most up to date literature and scientific practices surrounding bare root tree nurseries, existing land management plans, invasive species and public park management, ecological succession, …
Microbial Biodiversity Of The James River Rock Pool Ecosystem., Jordan C. Heydt
Microbial Biodiversity Of The James River Rock Pool Ecosystem., Jordan C. Heydt
Masters Theses, 2020-current
Rock pools are ephemeral aquatic environments that offer a unique opportunity to study complex communities and their responses to environmental changes. The urban James River rock pool system consists of over 700 individual rock pools varying in size and depth. This unique urban freshwater ecosystem has been studied for its invertebrate, plant, and zooplankton populations but not for its microbial community composition. To fill that gap, the microbial community of this system was characterized using 16S rRNA gene sequencing, and the influence of environmental variables on the community composition was analyzed. Our findings show variation in microbial community composition across …
Experimentally Testing A Mechanism Of Urban Adaptation: Are Wild Catbirds Able To Immediately Adjust Their Song In Response To Urban Noise?, Eriberto Osorio
Experimentally Testing A Mechanism Of Urban Adaptation: Are Wild Catbirds Able To Immediately Adjust Their Song In Response To Urban Noise?, Eriberto Osorio
Masters Theses, 2020-current
Anthropogenic noise is loud and low-frequency (low-pitch) sound with frequencies spanning from 1-2.5 kHz in frequency. In noisy urban areas, many birds sing songs with higher minimum frequencies, which can avoid the masking effects of anthropogenic noise. However, the mechanism for an individual to alter spectral aspects of bird song in real time to avoid the masking effect of urban noise is unknown. Immediate flexibility is the ability a bird may use to shifts their song frequency or amplitude in response to noise fluctuations in the environment. Some species that sing higher frequency songs in noisy habitats are not able …
Scorpions Of The Horn Of Africa (Arachnida: Scorpiones). Part Xxxviii. Parabuthus Puntlandus Sp. N. From Somalia (Puntland) (Buthidae), František Kovařík, František Šťáhlavský, Hassan Sh A. Elmi, Roman Štarha
Scorpions Of The Horn Of Africa (Arachnida: Scorpiones). Part Xxxviii. Parabuthus Puntlandus Sp. N. From Somalia (Puntland) (Buthidae), František Kovařík, František Šťáhlavský, Hassan Sh A. Elmi, Roman Štarha
Euscorpius
A new species Parabuthus puntlandus sp. n. from Somalia (Puntland) is described. Combination of five characters; metasoma V black; pectine teeth number 39–42 in both sexes; pedipalp chela length/width ratio 3.05–4.26 in both sexes; metasoma and telson sparsely hirsute; smooth inner side of the base of fingers of pedipalp chela (tubercle absent) distinguish P. puntlandus sp. n. from all other species in the region. In addition to the analyses of external morphology, we have provided descriptions of the karyotype of P. puntlandus sp. n. (2n=16). Included is also a map of distribution of Parabuthus species in Horn of Africa.
Quantifying 14 Years Of Restoration Impact At A Los Angeles Park Using Remote Sensing, Alexa Siglar, Demian A. Willette
Quantifying 14 Years Of Restoration Impact At A Los Angeles Park Using Remote Sensing, Alexa Siglar, Demian A. Willette
Honors Thesis
Ascot Hills Park is an urban park in the El Sereno neighborhood of east Los Angeles that has undergone continuous restoration efforts to reintroduce California native trees and shrubs from 2011-2025. This study seeks to understand how a 14 year period of continuous restoration by a variety of stakeholders has changed the park by asking the following question: How has native plant cover changed over time? To answer this question, the change in percent native plant cover at the park from 2011-2025 was quantified using satellite imagery and machine learning software in ArcGIS Pro. Satellite images and ArcGIS Pro were …
Remotely Sensed High-Resolution Soil Moisture And Evapotranspiration: Bridging The Gap Between Science And Society, Jingyi Huang, Vinit Sehgal, Laura V. Alvarez, Luca Brocca, Shuohao Cai, Rui Cheng, Xinghua Cheng, Jinyang Du, Bassil El Masri, K. Arthur Endsley, Yilin Fang, Jie Hu, Mahesh Jampani, Md Golam Kibria, Gerbrand Koren, Lingcheng Li, Laibao Liu, Jiafu Mao, Hernan A. Moreno, Angela Rigden, Mingjie Shi, Xiaoying Shi, Yaoping Wang, Xi Zhang, Joshua B. Fisher
Remotely Sensed High-Resolution Soil Moisture And Evapotranspiration: Bridging The Gap Between Science And Society, Jingyi Huang, Vinit Sehgal, Laura V. Alvarez, Luca Brocca, Shuohao Cai, Rui Cheng, Xinghua Cheng, Jinyang Du, Bassil El Masri, K. Arthur Endsley, Yilin Fang, Jie Hu, Mahesh Jampani, Md Golam Kibria, Gerbrand Koren, Lingcheng Li, Laibao Liu, Jiafu Mao, Hernan A. Moreno, Angela Rigden, Mingjie Shi, Xiaoying Shi, Yaoping Wang, Xi Zhang, Joshua B. Fisher
Biology, Chemistry, and Environmental Sciences Faculty Articles and Research
This paper reviews the current state of high-resolution remotely sensed soil moisture (SM) and evapotranspiration (ET) products and modeling, and the coupling relationship between SM and ET. SM downscaling approaches for satellite passive microwave products leverage advances in artificial intelligence and high-resolution remote sensing using visible, near-infrared, thermal-infrared, and synthetic aperture radar sensors. Remotely sensed ET continues to advance in spatiotemporal resolutions from MODIS to ECOSTRESS to Hydrosat and beyond. These advances enable a new understanding of bio-geo-physical controls and coupled feedback mechanisms between SM and ET reflecting the land cover and land use at field scale (3–30 m, daily). …
Temporal Assessment Of Fish Communities In A South Central Plains Ecoregion Watershed, Tara L. Schnelting
Temporal Assessment Of Fish Communities In A South Central Plains Ecoregion Watershed, Tara L. Schnelting
ATU Theses and Dissertations 2021 - Present
Among South Central Plains ecoregion fish communities, there is limited knowledge of the importance of headwaters yet this information is needed to understand their role in fish communities. I addressed this gap by assessing seasonal changes in fish communities in headwater streams of the Moro Creek watershed, Arkansas. I conducted two studies pertaining to temporal fish community assessments: (i) utilize multi-season, community occupancy models to estimate μ (species probability), Ω (community occupancy mean), and p (detection probability) and (ii) utilize beta diversity (β) analyses to address the diversity across different scales in the headwaters of the Moro Creek …
Assisted Reproductive Technologies For Southern Cricket Frogs (Acris Gryllus), Audrey Grace Koltz
Assisted Reproductive Technologies For Southern Cricket Frogs (Acris Gryllus), Audrey Grace Koltz
Honors Theses
Amphibians are facing the most drastic biodiversity declines of all vertebrates, with an estimated 41% of amphibians threatened with extinction. Captive breeding programs employ a variety of assisted reproductive technologies including environmental manipulation, hormonal therapies, artificial fertilization, and gamete preservation to augment vulnerable populations and optimize genetic diversity. Amphibians require a species-specific combination of environmental, social, and physiological cues to reproduce, which makes universal and successful captive breeding programs especially elusive. Here, I investigate assisted reproductive technologies for a small frog species, the southern cricket frog (Acris gryllus). Establishing successful methods for southern cricket frogs may yield promising results for …
Impact Of Unconventional Gas Extraction On Tributaries Of Tenmile Creek, Greene County, Pennsylvania: A 12-Year Perspective, Christian L. Beall
Impact Of Unconventional Gas Extraction On Tributaries Of Tenmile Creek, Greene County, Pennsylvania: A 12-Year Perspective, Christian L. Beall
Electronic Theses and Dissertations
Much of southwestern Pennsylvania has been central to a rapid increase in development for unconventional natural gas extraction in the past two decades. The continued monitoring of streams over their lifetime as extraction sites is pivotal to understanding the effects of fracking on local waterways and their ability to provide for wildlife and human use. Here, using multiple indices of biotic integrity (IBI), I perform analyses of fish and macroinvertebrate communities as well as water chemistry on two streams, Bates Fork (with shale wells) and Fonner Run (without), as part of a follow-up to work performed there from 2010-2012. Fish …
Earthworms, Slugs, And Salamanders: Community Interactions In A Massachusetts Forest, Emmalee Bent
Earthworms, Slugs, And Salamanders: Community Interactions In A Massachusetts Forest, Emmalee Bent
Honors Program Theses and Projects
Earthworms (Order: Opisthopora) have several important ecological interactions with eastern red-backed salamanders (Plethodon cinereus). For the salamanders, earthworms can be nutrient-rich, easy-to-digest prey, or ecosystem engineers of burrows. Indirectly, earthworms can be competition for other microinvertebrate prey species that salamanders prefer to eat. Red-backed salamanders are thought to be a critical player in forest food-webs and possible ecosystem indicator, as they are highly abundant, mid-level consumers that are very sensitive to their abiotic environment. These factors make understanding the interactions between earthworms and salamanders valuable for broader understanding of forest communities. To better understand the earthworm community present at a …
Demography Of Alligator Snapping Turtles (Macrochelys Temminckii) Along A Fishing Pressure Gradient, Luke T. Micek
Demography Of Alligator Snapping Turtles (Macrochelys Temminckii) Along A Fishing Pressure Gradient, Luke T. Micek
Electronic Theses and Dissertations
Passive fishing gear is a threat to the alligator snapping turtle (Macrochelys temminckii). The spatio-temporal persistence of this threat and its impacts on M. temminckii populations has not been quantified. I quantified the density of passive fishing gear and the demographic parameters of M. temminckii along a fishing pressure gradient in East Texas streams. Most gear was abandoned and illegally deployed, with densities varying seasonally. Detectability of passive fishing gear declined with increasing gear age, water depth, and volume, but increased with increasing precipitation. Macrochelys temminckii catch per unit effort, abundance, and survival was lower at sites with …
Patterns Of Taxonomic, Functional, And Phylogenetic Diversity, And Ecological Drivers Of Stream Fish Assemblages In East Texas, Anastasia M. Umstott
Patterns Of Taxonomic, Functional, And Phylogenetic Diversity, And Ecological Drivers Of Stream Fish Assemblages In East Texas, Anastasia M. Umstott
Electronic Theses and Dissertations
Freshwater ecosystems in East Texas contain a rich freshwater biodiversity, with the Neches and Sabine River basins supporting some of the greatest freshwater fish diversity in the state. Given the heterogeneity of habitats and species diversity, these rivers serve as excellent natural systems for examining the ecological processes shaping biodiversity patterns and species distributions. In 2023-2024, 60 streams in the Neches and Sabine River basins were surveyed across three seasons to investigate the patterns and ecological drivers of taxonomic (TDβ), functional (FDβ), and phylogenetic β-diversity (PDβ) facets of freshwater fish assemblages. Additionally, I created two ecological niche models for a …
A Search For Transcriptional Cofactors Of Gcm/Repo Involved In Determining Glia Cell Fate In Drosophila Melanogaster, Nivedha Kosalram
A Search For Transcriptional Cofactors Of Gcm/Repo Involved In Determining Glia Cell Fate In Drosophila Melanogaster, Nivedha Kosalram
Honors Theses
In Drosophila melanogaster, the mechanism influencing the differentiation of glia and neurons is directed by a key transcription factor known as glial cells missing (gcm). gcm is a crucial regulator of cell fate decision, functioning as a binary switch to direct glial fate in gcm- positive cells and neuronal fate in gcm-negative cells (Jones, et.al, 1995; Hosoya, et.al, 1995; and Vincent, et.al, 1996). In addition to directing gliogenesis, gcm and its homolog gcm2 facilitate the determination of macrophages and tendon cells, highlighting that gcm acts with supplementary factors to induce various signaling pathways in different contexts (Jones, 2005; Johnson, et …
Monitoring Mangrove Dynamics And Evaluating Future Afforestation Potential In The Egyptian Red Sea, Rasha M. Abou Samra, Mansour Almazroui, Wenzhao Li, Hesham El-Askary
Monitoring Mangrove Dynamics And Evaluating Future Afforestation Potential In The Egyptian Red Sea, Rasha M. Abou Samra, Mansour Almazroui, Wenzhao Li, Hesham El-Askary
Mathematics, Physics, and Computer Science Faculty Articles and Research
Mangrove forests are vital for ecosystem services and coastal management but face stressors from anthropogenic activities and climate change. This study estimates the extent and afforestation potential of mangroves along the Egyptian Red Sea coast from 1984 to 2022 using NDVI derived from Landsat-5 and Sentinel-2 data in Google Earth Engine. Aboveground biomass (AGB), belowground biomass (BGB), carbon (C) stock, and CO2 sequestration potential were evaluated using Sentinel-2 and elevation data. Future afforestation suitability (2020–2050) under SSP2-4.5 and SSP5-8.5 scenarios was assessed with the MaxEnt model. Mangrove area increased from 0.95 km2 in 1984 to 1.46 km2 …
Genomic Structure Among Populations Of A Regionally Rare Perennial Plant Indicates The Need For Reevaluation Of Management Units, Cheyenne Moore, Angela J. Mcdonnell, Scott Schuette, Christopher T. Martine
Genomic Structure Among Populations Of A Regionally Rare Perennial Plant Indicates The Need For Reevaluation Of Management Units, Cheyenne Moore, Angela J. Mcdonnell, Scott Schuette, Christopher T. Martine
Faculty Journal Articles
Conservation of rare species often relies on the delineation of management units and genomic tools can now be applied for this purpose. However, this is not as common on a local scale, where populations are often small and fragmented, despite the utility of informing conservation and management practice at the regional level. We use a genotyping by sequencing (GBS) approach to assess the perennial riparian plant species Baptisia australis (Fabaceae) in Pennsylvania, where the taxon is at the edge of its natural distribution and considered threatened. In this system, we investigate whether sampled subpopulations exhibit genetic structure. We find that …
New Mexico Cooper's Hawk Demographic Study: 2024 Annual Report, Brian A. Millsap Dr.
New Mexico Cooper's Hawk Demographic Study: 2024 Annual Report, Brian A. Millsap Dr.
New Mexico Cooper’s Hawk: Publications
The 2024 Annual Report for a long-term (2011 - present) demographic study of Cooper's hawks (Astur cooperii) in Albuquerque, New Mexico.
Functional Morphology Of The Primate Knee And Its Implications For Hominin Bipedal Mechanics, Catherine K. Miller
Functional Morphology Of The Primate Knee And Its Implications For Hominin Bipedal Mechanics, Catherine K. Miller
Dartmouth College Ph.D Dissertations
Bipedal locomotion is central to the human condition, having shaped our evolutionary trajectory since its early emergence in the hominin lineage. Despite its importance, key questions remain about its origins and evolutionary trajectory. While many studies have focused on locomotor-related anatomies, comparatively less attention has been paid to the knee joint – a structure critical to the primate locomotor repertoire. This dissertation aims to clarify the form-function relationship of the knee in extant primates to better infer the locomotor behaviors of Miocene hominoids and Plio-Pleistocene hominins. To address these questions, this research employs a multifaceted analytical approach, integrating linear measurements, …
Impacts Of German Yellowjacket (Vespula Germanica) Removal On Pollinator Communities In Western New York, Jonathan M. Promowicz
Impacts Of German Yellowjacket (Vespula Germanica) Removal On Pollinator Communities In Western New York, Jonathan M. Promowicz
Biology Theses
Invasive social insects can restructure native arthropod communities through predation and competition. Vespula germanica (German yellowjacket) is a globally invasive wasp species that dominates vespid assemblages across urban and suburban landscapes. This study tested the hypothesis that reducing V. germanica using protein-based fipronil baits would increase native pollinator abundance, species richness and native vespid abundance. Vespula germanica was experimentally suppressed at suburban and urban sites. Pollinator abundance and richness increased with V. germanica baiting. Native vespids had mixed results from baiting with suburban sites increasing in overall abundance and urban sites decreasing. These results indicate that suppressing dominant invasive wasps …
Large Mammal Herbivores As Gardeners Of Tropical Forest Ecosystems, Kathryn Garner
Large Mammal Herbivores As Gardeners Of Tropical Forest Ecosystems, Kathryn Garner
Student Scholarship
Ecosystems worldwide are experiencing changes in structure and function as populations of fauna decline and experience local extinctions (Torres-Romero et al. 2020). Due primarily to their body size, large mammal herbivores (LMHs) are disproportionately prone to extinction from human activities such as agricultural expansion, deforestation, and anthropogenic climate change (Pringle et al. 2023). Additionally, as the number of domesticated LMHs (i.e. cattle, pigs, etc.) continue to increase in both density and distribution, their wild counterparts are continually displaced, resulting in increased competition for resources and an increased risk of disease transmission between domestic to wild species (Pringle et al. 2023; …
Ghosts In Glass: Ghost Crabs (Ocypode Quadrata) As Judges Of Glass Sand For Coastal Restoration, Emily Parrish
Ghosts In Glass: Ghost Crabs (Ocypode Quadrata) As Judges Of Glass Sand For Coastal Restoration, Emily Parrish
Poster Presentations
Coastal erosion is heavily impacting coastal ecosystems across the Gulf. For instance, the state of Louisiana loses a football field worth of land every 100 minutes (Couvillion, 2017). The drastic loss of coastline highlights the dire need for restoration in the Northern Gulf Coast. An unexpected solution to this sediment loss may solve two major environmental issues at once by diverting millions of tons of glass waste from entering America’s landfills each year. By crushing glass to create sand and gravel for coastal restoration, we may generate a consistent and sustainable source of substrate. Our goal is to determine the …