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Lionfish Prey Preference between Native Basslets

Creator:: Anderson, Emily R.
Abstract:: The lionfish (Pterois volitans) is a successful invasive predator with large impacts on native fish populations in the western Atlantic. Lionfish predation may affect competition between prey species so it is important to understand whether lionfish display preferences between prey species. I investigated lionfish and native graysby grouper prey preference...
Resource Type:: Honors College Thesis
Full Text:: ________________________________________________________________________ Sally Hacker, Committee Member, representing Integrative Biology

Integrating climate change resilience into the monitoring and management of eelgrass (Zostera marina) on Washington’s aquatic reserves

Creator:: Bleke, Erica
Abstract:: Eelgrass (Zostera marina) provides critical ecosystem functions and services and is a vital biogenic habitat on Washington’s marine aquatic reserves but its placement at the land-sea interface leaves it vulnerable to multiple environmental and anthropogenic stressors. In this study, published scientific literature is examined to identify thresholds of environmental stressors...
Resource Type:: Capstone Project
Full Text:: Tomas Nash and Dr. Sally Hacker for their contributions throughout this process. I would also like to

Characterizing the response of coralline algae to ocean acidification and nutrient changes in the California Current system

Creator:: Letzing, Sandy
Abstract:: Ocean acidification (OA) has emerged as an important focus of research and policy in this decade. Ocean acidification specifically refers to changes in the inorganic carbon system in the ocean resulting from its absorption of human-released CO₂ from the atmosphere. Anthropogenic atmospheric CO₂ levels are rapidly increasing; much of this...
Resource Type:: Masters Thesis
Full Text:: helping me, Karina Nielson, Rick Colwell and GCR Sally Hacker. Your time, input and guidance were

Exploring the potential for using deep-sea bamboo corals (Isidella sp.) for paleoceanographic reconstructions

Creator:: Hornung, Jonathan P.
Abstract:: Deep-sea bamboo coral (Isidella sp.) SE000901A from the southern Oregon coast (water depth 1048m) provides a high-resolution record of variability of North Pacific Intermediate Water (NPIW) and carbon rain to the sea floor, related to coastal upwelling, from 1808 to 2000AD. Counting of annual layers in magnesium to calcium (Mg/Ca)...
Resource Type:: Masters Thesis

Do settling mussels (Mytilus spp.) prefer macroalgae over artificial substrates? : a test of collector preference along the Oregon Coast

Creator:: Howieson, John
Abstract:: This study investigated whether a device commonly used to measure settlement of mussel larvae for ecological studies, the Tuffy™, functions uniformly whether placed in a bed of filamentous algae or on bare rock. During the summers of 2004 and 2005, the number of mussel larvae settling on Tuffys in patches...
Resource Type:: Masters Thesis
Full Text:: , Francis Chan and Sally Hacker. Special thanks to Sally for reading and commenting on my thesis. All

From Hydrology to Biology: How Abiotic Factors Structure Invertebrate Communities in a Free-Flowing River Network

Creator:: Hockett, Justin
Abstract:: Chapter 2: Aquatic macroinvertebrate communities have been shown to exhibit strong differences between erosional (riffle and run) and depositional (pool) macrohabitats of streams. A subset of these communities are aquatic insect taxa that are an important food source for riparian consumers like birds, bats, lizards, and spiders. Understanding the role...
Resource Type:: Masters Thesis

Quantifying dune ecomorphodynamics using UAV-based structure from motion photogrammetry

Creator:: Edgell, Rebecca
Abstract:: Oregon’s foredunes are part of a dynamic coastal environment that constantly evolves in response to both ecological and physical forces. Invasive beachgrasses have outcompeted native dune grass in the region and have influenced the shape of Oregon’s foredunes via species-specific biophysical feedback mechanisms. As climate change induced sea-level rise will...
Resource Type:: Masters Thesis
Full Text:: . Sally Hacker, Dr. Meagan Wengrove, and Dr. Quentin Laporte-Fauret for their contributions to my

Observations and Modeling of Shear Reduction and Sediment Flux within Vegetated Canopies on Managed Coastal Dunes

Creator:: Dickey, John
Abstract:: Wind flow on vegetated coastal foredunes adapts to the local canopy drag, resulting in spatial gradients in bed shear stresses which contribute to the formation of localized bedforms (e.g., nebkha, shadow dunes). Numerous morphological properties of the plants, including canopy height and density, affect the wind flow dynamics and therefore...
Resource Type:: Masters Thesis
Full Text:: , I would like to mention Risa Askerooth, Jeff Wood, and all the members of the Hacker and Ruggiero

Communities in Flux: The Influence of Hydroperiod on Aquatic Invertebrate Communities in Temporary Ponds

Creator:: Kruse, Christi A.
Abstract:: A central theme of ecology is determining factors that influence species distributions. Within aquatic ecology, species present in flowing waters are primarily influenced by the natural flow patterns of the stream (natural flow regime paradigm) while explanations of species present in standing waters are further divided by habitat type. To...
Resource Type:: Masters Thesis

Quantifying the Relative Role of the Key Drivers of Coastal Dune Evolution: Observations and Simulations Across a Range of Time and Space Scales in Cape Lookout National Seashore, North Carolina

Creator:: Hovenga, Paige A.
Abstract:: Coastal dunes provide a diverse set of ecosystem services including coastal protection against destructive surge and waves during storm events. Dunes are constantly evolving through various stages of response to storm events and post-storm recovery at rates that vary due to a range of drivers including pre-existing morphology, environmental forcing...
Resource Type:: Dissertation
Full Text:: things I have learned from you during my time at OSU. To Peter, Sally Hacker, and Laura Moore

ScholarsArchive@OSU

Lionfish Prey Preference between Native Basslets

Integrating climate change resilience into the monitoring and management of eelgrass (Zostera marina) on Washington’s aquatic reserves

Characterizing the response of coralline algae to ocean acidification and nutrient changes in the California Current system

Exploring the potential for using deep-sea bamboo corals (Isidella sp.) for paleoceanographic reconstructions

Do settling mussels (Mytilus spp.) prefer macroalgae over artificial substrates? : a test of collector preference along the Oregon Coast

From Hydrology to Biology: How Abiotic Factors Structure Invertebrate Communities in a Free-Flowing River Network

Quantifying dune ecomorphodynamics using UAV-based structure from motion photogrammetry

Observations and Modeling of Shear Reduction and Sediment Flux within Vegetated Canopies on Managed Coastal Dunes

Communities in Flux: The Influence of Hydroperiod on Aquatic Invertebrate Communities in Temporary Ponds

Quantifying the Relative Role of the Key Drivers of Coastal Dune Evolution: Observations and Simulations Across a Range of Time and Space Scales in Cape Lookout National Seashore, North Carolina

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