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Full-Text Articles in Physical Sciences and Mathematics

Evaluating Human Pressure On Protected Areas In East Africa, Bailey M. Ytterdahl Apr 2022

Evaluating Human Pressure On Protected Areas In East Africa, Bailey M. Ytterdahl

Student Publications

Protected areas (PAs) are crucial to achieving effective conservation goals and mitigate the loss of biodiversity. I investigated the following research questions: How does human pressure threaten PAs in East Africa? Is human pressure associated with the factors of country, ecosystem characteristics, size, or governance type of a PA? For this study, I used a combination of a GIS analysis and case studies to evaluate human pressure on PAs in Tanzania and Kenya. For the GIS analysis, I used 589 terrestrial PAs from the World Database on Protected Areas (WDPA). Within each PA, I summarized the landform, landcover, moisture level, …


Logging Impacts On Aquatic Ecosystem Quality In Michaux State Forest, Pennsylvania, Sara Baran, Timothy J. Bell, Erick R. Seager Apr 2022

Logging Impacts On Aquatic Ecosystem Quality In Michaux State Forest, Pennsylvania, Sara Baran, Timothy J. Bell, Erick R. Seager

Student Publications

Logging can affect freshwater streams around logging sites, even years after the logging has occurred. In this study, we looked into how sustainable logging in Michaux State Forest (in Adams County, Pennsylvania) has affected two streams within the state park: Mountain Creek and Birch Run. Six sites were selected along each stream, with three upstream and three downstream from the logging area. We hypothesized that the water quality would be lower at the stream sites downstream from the logged areas as compared to the upstream sites. At each site, water samples were collected, including pH, water temperature, and turbidity, as …


Ecosystem Service Trade-Offs In Coral Reefs: A Global Analysis, Megan E. Keene Apr 2022

Ecosystem Service Trade-Offs In Coral Reefs: A Global Analysis, Megan E. Keene

Student Publications

Coral reefs are biodiversity hotspots that provide humans with extractive ecosystem services like fisheries and non-extractive services like tourism. Though no studies have examined these trade-offs among these services at a global scale, there are now large, open datasets that make this possible. Using these datasets, we asked whether spatial protection and the level of protection (World Database on Protected Areas) impacted coral reef tourism value (Atlas of Ocean Wealth). We also examined whether proximity to regions of high fishing effort, defined as the top 25th percentile of the average annual effort from Global Fishing Watch, impacted tourism values. Since …


Leveraging Land Easements For Grassland Bird Habitat Conservation, Amy N. Marigliano, Hayden E. Dubniczki, Sarah W. Westrick Apr 2022

Leveraging Land Easements For Grassland Bird Habitat Conservation, Amy N. Marigliano, Hayden E. Dubniczki, Sarah W. Westrick

Student Publications

In addressing the decline of North American grassland bird populations, it is important to consider the various interdisciplinary approaches that can be employed in their conservation. OECMs, or “other effective area-based conservation measures” encompass a wide array of strategies which can be leveraged to conserve natural landscapes and species. Land easements implemented by the Land Conservancy of Adams County (LCAC) are an example of one such strategy. The LCAC seeks primarily to preserve the rural character of Adams County but has more recently turned their focus toward environmental conservation. In partnering with the Land Conservancy, this case study aimed to …


Sea Level Rise And Public Perceptions Of Climate Change At Otter Point Creek Estuarine Reserve, Md, Haley A. Bechtel, Meghan L. Junis, Keylen Lucero Garcia Apr 2022

Sea Level Rise And Public Perceptions Of Climate Change At Otter Point Creek Estuarine Reserve, Md, Haley A. Bechtel, Meghan L. Junis, Keylen Lucero Garcia

Student Publications

Freshwater tidal marshes are essential stopover points for migratory birds traveling up and down the east coast of North America. Given the importance of these habitats, we examined the effects of sea level rise on vegetation health and vegetation migration at Otter Point Creek Estuarine Reserve. We aimed to test three predictions: 1) vegetation health will decline over time during vegetation growth periods, 2) vegetation migration of less water-tolerant species will occur with movement into higher elevation plots, 3) people will be aware that there are impacts of climate change on species around them and themselves. We used a combination …