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Articles 1 - 7 of 7
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The Blueberry Gall Midge Complex And Its Specialist Parasitoids, Monique Michele Raymond
The Blueberry Gall Midge Complex And Its Specialist Parasitoids, Monique Michele Raymond
Master's Theses and Capstones
The cosmopolitan blueberry gall midge complex causes serious damage to the terminal vegetation of blueberry plants. The nature of their infestation, paired with prolonged periods of abundance, requires an integrated pest management approach. Of all known parasitoids present in the system, members of the subfamily Platygastrinae are the only oligophagous clade specialized against true gall midges. In this study, we present the results of blueberry gall midge and platygastrid surveys in high- and low-bush blueberry crops in the northeastern and southeastern United States, along with an identification key, with emphasis on blueberry parasitoid Synopeas species to facilitate their identification.
Controls Of Benthic Microbial Communities In Headwater Streams Across A Land Use Gradient In Northeastern Usa, Joshua Michael Buonpane
Controls Of Benthic Microbial Communities In Headwater Streams Across A Land Use Gradient In Northeastern Usa, Joshua Michael Buonpane
Master's Theses and Capstones
Benthic microbes are important drivers of biogeochemical cycling in streams, influencing the storage, transformation, and emission of carbon and nutrients. While the impact of land use and land cover on water quality has been extensively studied, the connection between water quality and microbial community composition and function remains unresolved. In this study, we examined how the water quality changes accompanying watershed development impact the diversity, composition, and functional potential of benthic bacterial/archaeal, and fungal communities. This was explored in headwater streams across an urbanization gradient in the northeastern US. We did not find a link between urbanization and α-diversity of …
The Under-Appreciated Roles Of Spatial Scale, Individual Variation, And Nonlinearity In Spatial Ecology, David Heit
The Under-Appreciated Roles Of Spatial Scale, Individual Variation, And Nonlinearity In Spatial Ecology, David Heit
Master's Theses and Capstones
Spatial ecology is a central component of ecological inquiry. In an ever-changing world facing threats including climate change, human sprawl, and novel zoonotic diseases, understanding how animals use space and make habitat decisions can be invaluable to research, management, and conservation of animal species. The techniques and technology used in spatial ecology have advanced continuously over time to provide increasingly detailed data and analyses and mitigate potential statistical biases. However, there remain many potential biases that warrant further attention in the discipline of spatial ecology. This is especially true for conceptual biases, or biases inherent to the ways in which …
Impacts Of Human Development On Mammalian Wildlife In An Exurban And Rural Landscape, Mairi Poisson
Impacts Of Human Development On Mammalian Wildlife In An Exurban And Rural Landscape, Mairi Poisson
Master's Theses and Capstones
Urbanization is increasing worldwide, with over half the world’s population living in urban areas. Urbanization impacts wildlife by fragmenting habitat and restricting space use, which can in turn lead to a decrease in biodiversity, ecosystem services, and species abundance. In some cases, wildlife can adapt to land-use change present in urban areas and will respond positively to urbanization. In these cases, urbanization can create new niches and enhance niche partitioning. With increased urban growth, suburban and exurban sprawl has also increased. Globally, this “exurbanization” is the most rapidly developing land use type, though research into the impacts of exurban development …
Exploring Forest Structural Complexity: Scale Effects And Metric Relationships In New England Hardwood Forests, Alex Jed Siebert
Exploring Forest Structural Complexity: Scale Effects And Metric Relationships In New England Hardwood Forests, Alex Jed Siebert
Master's Theses and Capstones
Forest structural complexity (FSC) is an informative characteristic in forest management due to its connections to ecosystem resilience, biodiversity, and carbon sequestration. Despite its widespread use, quantifying FSC remains a challenge because of the many attributes that can comprise an assessment of FSC and ambiguity around what exactly is meant by “complexity.” Many assessments of FSC involve metrics derived from lidar data, yet there is not a clear understanding of how spatial extent impacts metrics of FSC. This thesis investigates the influence of spatial extent on FSC metrics and metric relationships in the context of New England mixed hardwood forests. …
Improving The Sustainability Of The Channeled Whelk (Busycotypus Canaliculatus) Fishery: An Investigation Into Alternative Baits, Feeding Behavior, And Circadian Rhythms, Mary Munley
Master's Theses and Capstones
The channeled whelk (Busycotypus canaliculatus) is a large predatory marine gastropod that supports an important commercial fishery along the eastern coast of the United States. Channeled whelk fisheries are state regulated, with each state enforcing slightly different regulations. In Massachusetts, the fishery is regulated by the Massachusetts’s Division of Marine Fisheries (MA DMF). Massachusetts’ channeled whelk landings peaked in 2012 at 3.6 million lbs., valued at $6.2 million. Since 2012, landings have decreased, 766,975 lbs. were landed in 2021 worth $3.1 million. Catch per unit effort (CPUE; lbs per trap haul) has also steadily decreased, indicating the resource is likely …
Alexandrium Spp. And Pseudo-Nitzschia Spp. Cohabitation In The Gulf Of Maine, Tiffany Winter
Alexandrium Spp. And Pseudo-Nitzschia Spp. Cohabitation In The Gulf Of Maine, Tiffany Winter
Master's Theses and Capstones
Globally, harmful algal blooms are a severe issue for marine ecosystems, animals, and humans both ecologically and economically. The Gulf of Maine is no stranger to harmful algal blooms, specifically the dinoflagellate, Alexandrium catenella, that has routinely been forming toxic blooms since the early 1970s. In 2016, a new species, the diatom Pseudo-nitzschia spp. formed a massive bloom and has had annual blooms since. Anecdotally, these two species do not bloom concurrently, suggesting there may be specific environmental conditions that promote bloom formation for each species. The intent of this research is to uncover potential parameters that are affecting bloom …