Showing 4651 - 4700 of 5840 Items

Lake water chemistry and local adaptation shape NaCl toxicity in Daphnia ambigua

Date: 2024-01-01

Creator: Mary Alta Rogalski, Elizabeth S Baker, Clara M Benadon

Access: Open access

Increasing application of road deicing agents (e.g., NaCl) has caused widespread salinization of freshwater environments. Chronic exposure to toxic NaCl levels can impact freshwater biota at genome to ecosystem scales, yet the degree of harm caused by road salt pollution is likely to vary among habitats and populations. The background ion chemistry of freshwater environments may strongly impact NaCl toxicity, with greater harm occurring in ion-poor, soft water conditions. In addition, populations exposed to salinization may evolve increased NaCl tolerance. Notably, if organisms are adapted to their natal lake water chemistry, toxicity responses may also vary among populations in a given test medium. We examined how this evolutionary and environmental context may interact in shaping NaCl toxicity with a pair of laboratory reciprocal transplant toxicity experiments, using natural populations of the water flea Daphnia ambigua from three lakes differing in ion availability. The lake water environment strongly influenced NaCl toxicity in both trials. NaCl greatly reduced reproduction and r in lake water from a low-ion/ calcium-poor environment compared with water from both a calcium-rich lake and an ion-rich coastal lake. Daphnia from this coastal lake were most robust to the effects of NaCl. A significant population x environment interaction shaped survival in both trials, suggesting that local adaptation to the test waters used contributed to toxicity responses. Our findings that the lake water environment, adaptation to that environment, and adaptation to a focal contaminant may shape toxicity demonstrate the importance of considering environmental and biological complexity in mitigating pollution impacts.


Henry Wadsworth Longfellow to William Wood, Brunswick, 1835 Feb 27 regarding his impending departure from Bowdoin [4p.]

Date: 1835-02-27

Creator: Henry Wadsworth Longfellow

Access: Open access

Letter from Henry Wadsworth Longfellow to William Wood regarding his impending departure from Bowdoin.


Map of Brunswick and Topsham, Maine

Date: 1877-01-01

Access: Open access

Lithograph panoramic view looking north.


Miniature of Exploring Solution-Based Co-Crystal Growth of Curcumin as an Approach for Alzheimer’s Therapeutics
Exploring Solution-Based Co-Crystal Growth of Curcumin as an Approach for Alzheimer’s Therapeutics
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      Date: 2025-01-01

      Creator: Nadia E. Puente

      Access: Access restricted to the Bowdoin Community



        Miniature of Dynamic Multi-Objective Optimization With Applications to AI for Social Good
        Dynamic Multi-Objective Optimization With Applications to AI for Social Good
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            Date: 2025-01-01

            Creator: Sajel Surati

            Access: Access restricted to the Bowdoin Community



              Miniature of Settling down to a long winter's nap: Seasonality and temperature on evergreen entrance into winter dormancy
              Settling down to a long winter's nap: Seasonality and temperature on evergreen entrance into winter dormancy
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                  Date: 2025-01-01

                  Creator: Roger M. Wilder

                  Access: Access restricted to the Bowdoin Community



                    Miniature of Using Fluorogenic Monosaccharides to Detect and Identify Glycan-Degrading Enzymes
                    Using Fluorogenic Monosaccharides to Detect and Identify Glycan-Degrading Enzymes
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                        Date: 2025-01-01

                        Creator: Esteban Tarazona Guzman

                        Access: Access restricted to the Bowdoin Community



                          The Collision of Oil and Anticolonial Nationalism in the Persian Gulf

                          Date: 2025-01-01

                          Creator: Vaughn Vial

                          Access: Open access

                          In the 1950s and 1960s, Arab nationalism swept across the Arabian Peninsula from Egypt and the Levant, carried by migrants, refugees, and in magazines and newspapers that circulated across national borders. In the Gulf countries this wave of Arab nationalism collided with a flow more material in nature: the movement of enormous amounts of carbon energy in the form of oil. In Arab nationalism, oil workers at Aramco in Saudi Arabia and Bapco in Bahrain found not only a direction for political change but a means of overcoming religious and national divides with their fellow workers. Strikes and labor actions soon ensued at a scale that was unprecedented in these countries. This project explores how the confluence of oil flows and anticolonial nationalism both imbued this moment with the potential to effect egalitarian political change and, simultaneously, limited that potential.


                          Miniature of The Sublethal Impacts of Epizootic Shell Disease, Molting and Damage on Energy Storage and Immune Function in the American Lobster (Homarus americanus)
                          The Sublethal Impacts of Epizootic Shell Disease, Molting and Damage on Energy Storage and Immune Function in the American Lobster (Homarus americanus)
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                              Date: 2025-01-01

                              Creator: Annika Ruth Bell

                              Access: Access restricted to the Bowdoin Community



                                Miniature of Latent Landscapes: Deep Learning Techniques for Measuring Poverty and Vulnerability
                                Latent Landscapes: Deep Learning Techniques for Measuring Poverty and Vulnerability
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                                    Date: 2025-01-01

                                    Creator: Brian Liu

                                    Access: Access restricted to the Bowdoin Community



                                      New Creatures in Old Gazes: Investigating Shifts Away from Anthropocentrism in Contemporary Animal Fiction

                                      Date: 2025-01-01

                                      Creator: Catherine Mose

                                      Access: Open access

                                      This paper examines three works of animal-based fiction published within the last decade that all center on hypothetical forms of animals with a focus on decentering anthropocentric narratives of how much agency an animal is allowed to have in a human-centric narrative without engaging in anthropmorphism. By comparing the books with theory from the academic field of animal studies, older works of animal-based fiction, and historical debates surrounding the depiction of real-world animals in writing, I aim to interrogate the methods these authors use to decouple their animals' agency from anthropomorphism, and the ways in which this shift allows anthropocentrism to take new forms rather than be eradicated.


                                      Miniature of Exploring the functional role of theta oscillations in top-down control of episodic memory retrieval
                                      Exploring the functional role of theta oscillations in top-down control of episodic memory retrieval
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                                          Date: 2025-01-01

                                          Creator: Emma F.B. Gibbens

                                          Access: Access restricted to the Bowdoin Community



                                            Suite For a Changing Climate

                                            Date: 2025-01-01

                                            Creator: Hayden Byrne

                                            Access: Open access

                                            Suite for a Changing Climate is a set of compositions inspired by the changing rhythms of the New England seasons and the evolving ways in which we experience them in the shadow of climate change. Each piece captures a distinct facet of the seasonal year, whether rooted in sensory experience or in cultural memory, while reflecting on how these once-familiar patterns are being reshaped by environmental instability.


                                            Miniature of “I belong as much as I want to”: Changing Perceptions of Belonging through COVID and After among Elite Undergraduates
                                            “I belong as much as I want to”: Changing Perceptions of Belonging through COVID and After among Elite Undergraduates
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                                                Date: 2025-01-01

                                                Creator: Fiona Bor

                                                Access: Access restricted to the Bowdoin Community



                                                  Miniature of Exploring Eelgrass Restoration: Understanding Zostera marina seed development and germination in Casco Bay, ME
                                                  Exploring Eelgrass Restoration: Understanding Zostera marina seed development and germination in Casco Bay, ME
                                                  Access to this record is restricted to members of the Bowdoin community. Log in here to view.

                                                      Date: 2025-01-01

                                                      Creator: Lucille Jean de Ferranti Dutton

                                                      Access: Access restricted to the Bowdoin Community



                                                        Bowdoin Orient, v. 19, no. 15

                                                        Date: 1890-02-26

                                                        Access: Open access



                                                        Bowdoin Orient, v. 19, no. 17

                                                        Date: 1890-03-26

                                                        Access: Open access



                                                        Bowdoin Orient, v. 20, no. 4

                                                        Date: 1890-06-11

                                                        Access: Open access

                                                        Ivy Number


                                                        Bowdoin Orient, v. 20, no. 9

                                                        Date: 1890-11-12

                                                        Access: Open access



                                                        Bowdoin Orient, v. 20, no. 12

                                                        Date: 1891-01-21

                                                        Access: Open access



                                                        Bowdoin Orient, v. 20, no. 14

                                                        Date: 1891-02-18

                                                        Access: Open access



                                                        Bowdoin Orient, v. 21, no. 2

                                                        Date: 1891-05-13

                                                        Access: Open access



                                                        Bowdoin Orient, v. 21, no. 14

                                                        Date: 1892-02-17

                                                        Access: Open access



                                                        Bowdoin Orient, v. 21, no. 12

                                                        Date: 1892-01-20

                                                        Access: Open access



                                                        Bowdoin Orient, v. 22, no. 1

                                                        Date: 1892-04-27

                                                        Access: Open access



                                                        Bowdoin Orient, v. 22, no. 12

                                                        Date: 1893-01-18

                                                        Access: Open access



                                                        Bowdoin Orient, v. 23, no. 5

                                                        Date: 1893-06-28

                                                        Access: Open access

                                                        Commencement Number


                                                        Bowdoin Orient, v. 69, no. 22

                                                        Date: 1940-02-21

                                                        Access: Open access



                                                        Bowdoin Orient, v. 70, no. 11

                                                        Date: 1940-10-23

                                                        Access: Open access



                                                        Bowdoin Orient, v. 70, no. 24

                                                        Date: 1941-03-12

                                                        Access: Open access



                                                        Bowdoin Orient, v. 70, no. 23

                                                        Date: 1941-03-05

                                                        Access: Open access



                                                        Bowdoin Orient, v. 70, no. 3

                                                        Date: 1940-04-24

                                                        Access: Open access



                                                        Bowdoin Orient, v. 71, no. 4

                                                        Date: 1941-05-07

                                                        Access: Open access



                                                        Bowdoin Orient, v. 71, no. 7

                                                        Date: 1941-06-21

                                                        Access: Open access



                                                        Bowdoin Orient, v. 71, no. 18

                                                        Date: 1941-12-18

                                                        Access: Open access



                                                        Bowdoin Orient, v. 71, no. 20

                                                        Date: 1941-01-21

                                                        Access: Open access



                                                        Bowdoin Orient, v. 80, no. 15

                                                        Date: 1950-11-15

                                                        Access: Open access



                                                        Bowdoin Orient, v. 80, no. 18

                                                        Date: 1951-01-10

                                                        Access: Open access



                                                        Bowdoin Orient, v. 81, no. 9

                                                        Date: 1951-10-10

                                                        Access: Open access



                                                        Bowdoin Orient, v. 81, no. 14

                                                        Date: 1951-11-14

                                                        Access: Open access



                                                        Bowdoin Orient, v. 81, no. 19

                                                        Date: 1952-01-16

                                                        Access: Open access



                                                        Bowdoin Orient, v. 81, no. 20

                                                        Date: 1952-01-23

                                                        Access: Open access



                                                        Bowdoin Orient, v. 82, no. 12

                                                        Date: 1952-10-29

                                                        Access: Open access



                                                        Bowdoin Orient, v. 82, no. 19

                                                        Date: 1953-01-21

                                                        Access: Open access



                                                        Bowdoin Orient, v. 82, no. 25

                                                        Date: 1953-03-25

                                                        Access: Open access



                                                        Bowdoin Orient, v. 75, no. 4

                                                        Date: 1945-06-27

                                                        Access: Open access



                                                        Bowdoin Orient, v. 75, no. 8

                                                        Date: 1945-09-19

                                                        Access: Open access



                                                        Bowdoin Orient, v. 75, no. 12

                                                        Date: 1945-12-19

                                                        Access: Open access



                                                        Bowdoin Orient, v. [76], no. 1 [special]

                                                        Date: 1946-09-18

                                                        Access: Open access

                                                        Special Series


                                                        Bowdoin Orient, v. 76, no. 19

                                                        Date: 1947-03-26

                                                        Access: Open access