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Browsing Auburn University Graduate School by Author "Vachula, Richard"

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Application of paleoenvironmental methods to inform conservation efforts 

Tsalickis, Alexandra (2026-04-19)  ETD File Embargoed
This dissertation embodies the strengths of interdisciplinary science by bridging the fields of geology, ecology. Throughout the chapters of this work various perspectives are juxtaposed, demonstrating the value of research ...

Applications of charcoal morphometry and morphology during the Cretaceous Period 

Galinger, Matthew (2025-04-21)  ETD File Embargoed
Wildfire regimes are intensifying globally due to anthropogenic climate change, necessitating improved methods for reconstructing past fire activity to inform future mitigation strategies. The Cretaceous period, particularly ...

Cyanotoxin Production in Subtropical Lakes over the Last 150 Years with Implications for Human and Ecosystem Health 

Clift, Troy (2022-12-02)
Lakes are experiencing a modern period of increased eutrophication due to cultural impacts and climate change. One common characteristic of lake eutrophication is the increase in cyanobacteria, which possess a competitive ...

An examination of the late Miocene C4 grass expansion through sedimentary charcoal morphometrics and morphotypes 

Barney, Sarah (2026-04-23)
The C4 Fire Hypothesis posits that an increase in fire was the catalyst for the late Miocene C4 grass expansion by clearing forest canopies to create and maintain open landscapes preferred by C4 grasses, creating a positive ...

Providing Paleoenvironmental Baselines to Inform Prescribed Fire Application in Central Florida 

Foliano, Sophia (2024-12-05)
Prescribed fire (Rx-Fire) is widely applied in the United States of America (U.S.A.) as a land management tool to promote ecosystem health and mitigate the risk of wildfires by removing excess fuels from landscapes. Rx-Fire ...

Reconstructions of Aquatic Primary Producer Dynamics, Cyanobacteria Dominance and Cyanotoxin Concentrations in Subtropical Lake Ecosystems Throughout the Holocene and Late Pleistocene 

Paradeisis-Stathis, Savvas (2025-07-11)  ETD File Embargoed
Harmful algal blooms (HABs) are intensifying globally, threatening freshwater ecosystems and public health. Although modern HABs have been extensively studied in the context of anthropogenic nutrient enrichment, the long-term ...