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Friends of Musselman Library Newsletter Spring 2025
No full textFrom the Dean: A Place Where I Could Breathe
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Exploring Harrisburg
Videos Promote Library Skills Learning
Summer Internships
Library Welcomes Summer Kolbe Fellows
Exhibits: Current and Coming Soon
Library Bookshelf: What is Artificial Intelligence
The Buddy Glover \u2771 Collection: A Rare View of College History
Traditions: Stoles of Gratitude
Flashback: Hard Times and Celebrations
Queen Wins in Close Contest
New Book for Sale: Remembering Symposium 70
War Letters and Photographs: The Albert Chance Collection
German Language Students Discover Fraktur
An Interview with Lara Ulrich
Perfect Together: Lincoln, Darwin, and Pennsylvania College
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Faculty Meeting Minutes - April 17, 2025
No full textAmended minutes of the Gettysburg College Faculty Meeting, April 17, 2025
Local and Non-Local Women Entrepreneurship in Rural Türkiye: Innovation, Collective Agency and Human Capital
No full textWomen\u27s entrepreneurship in tourism as a gendered practice and a form of empowerment has garnered much research interest. In the context of rural tourism, women entrepreneurs have to navigate a landscape marked by both potential opportunities and significant barriers produced by patriarchal norms. Building on interviews with 42 participants between 2017 and 2021, we examine how women entrepreneurs in the tourism sector frame their experiences and consider the challenges they face. Specifically, we study the differences between local and non-local women entrepreneurs. Our results indicate that both groups of participants shared similar constraints in their venture. To start, women have less access to financial resources and are incumbered by familial gender role expectations. In the absence of social policy provisions for women entrepreneurs, only women with enough resources such as savings or a family estate can enter and sustain their entrepreneurship. The results demonstrate that even women so favored face challenges and their entrepreneurship has not always been sustainable. The combination of patriarchy and resource-scarce environments perpetuates gender inequality in the entrepreneurial milieu. Still, participants consider this phase as their second life, where they feel empowered, however limited, to move away from the confines of the domestic realm and contribute to the larger society
The Faculty Notebook, April 2025
No full textThe Faculty Notebook is published periodically by the Office of the Provost at Gettysburg College to bring to the attention of the campus community accomplishments and activities of academic interest. Faculty are encouraged to submit materials for consideration for publication to the Associate Provost for Faculty Development. Copies of this publication are available at the Office of the Provost
Tracking Phenological Shifts of Black Guillemots Cepphus grylle in the Gulf of Maine
No full textRapid warming in the Gulf of Maine has coincided with changes in phenology across trophic levels. Phenological change has yet to be studied in black guillemots (Cepphus grylle), a widely distributed benthic forager that is showing population decline in the region. Because black guillemots nest in burrows, their phenology can be challenging to study. I developed methods to track black guillemot phenology on Petit Manan Island, a seabird breeding colony in the Gulf of Maine. Specifically, I asked Q1) Can daily tower count data be used to predict black guillemot breeding phenology? Q2) How is black guillemot breeding phenology shifting over time? Q3) If phenology impacts chick growth rate, can size-based equations still accurately predict black guillemot hatch date? To answer these questions, I used long-term datasets on daily population tower counts (2000 to present) and chick growth and hatch dates (2007 to present) collected on Petit Manan Island. I tested for relationships among these parameters and for changes in these parameters over time using a series of linear and generalized additive models, with model selection based on AIC.
I found an abrupt change in black guillemot population size and phenology in 2010, which coincides with a widely recognized regime shift in the Gulf of Maine. Black guillemots had an average daily tower count of 275.94 prior to the regime shift, and an average count of 158.10 following this shift. Though the tower count data did suggest a phenological pattern, they did not show a consistent relationship with nest-check data, so tower counts are unlikely to be useful in tracking guillemot phenology (Q1). Nest check data suggested that the date when 25% of eggs hatched has advanced non-linearly by over 15 days since 2007 (Q2). In 2024, the linear growth rate for a subset of chicks showed a positive relationship with hatch date, indicating that later-hatched chicks grew faster. The equation used by USFWS to back-estimate hatch dates underpredicted age for all chicks, and the accuracy of this equation did not depend on hatch date (Q3). Future studies on PMI should examine how increased sea surface temperature influences black guillemot phenology, continue to collect tower count data, and designate a subset of nests that are checked daily to obtain exact hatch dates
Common Terns (Sterna hirundo) as Bioindicators for Atlantic Herring (Clupea harengus) Distribution in the Gulf of Maine
No full textEffective fisheries management is increasingly challenged by climate-driven shifts in species distribution and by a lack of data on early life stages of key forage fish species. In the Gulf of Maine, Atlantic herring (Clupea harengus), a once economically dominant fishery species and a key prey species for many dependent predators, has declined due to poor early-stage recruitment and warming waters. Despite this decline, current trawl surveys do not inform early-stage Atlantic herring distribution due to mesh size limitations, leaving critical gaps in our knowledge. To address this knowledge gap, I used common terns (Sterna hirundo) as bioindicators for early-stage Atlantic herring habitat by combining movement and diet data for terns from two breeding colonies (Petit Manan Island and Ship Island) in the Gulf of Maine. I found that environmental variables such as sea surface temperature (SST), chlorophyll concentration, and distance from colony were significant predictors of Atlantic herring presence, with common terns foraging for Atlantic herring in cooler, higher productivity, and farther offshore waters as compared to other prey. Sea surface temperatures above 15℃ marked a strong threshold beyond which Atlantic herring were not present, alluding to future declines under continued warming. Common terns also demonstrated a willingness to travel farther to access Atlantic herring, a preferred prey species, which could result in higher foraging costs as herring stocks move more offshore due to warming. My findings show that the integration of seabird-based data into fishery monitoring programs can complement other data collection efforts on fisheries stocks. Future work should explore scaling this approach across species and regions to support ecosystem-based management under climate change
