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Supply Is Not Limulus: Research Review Of Horseshoe Crab Conservation In The Face Of Intense Pharmaceutical Demand, Zoya Galeev

University Honors Theses

Horseshoe crabs are being used by the pharmaceutical industry to conduct endotoxin tests using LAL derived from the organism’s blood to ensure safe medical practice. Their annual collection and bleeding, while not always leading to mortality, affects horseshoe crab behavior and health. This research seeks to understand how the American horseshoe crab, L. polyphemus, is being used by pharmaceutical agencies and the implications that their harvesting has on the industry and the conservation of the species. Studies were collected from the past decade across two databases, Web of Science (WOS) and PubMed, to assess present conservation techniques to reduce …

Oregon State Rank Assessment For Golden Eagle (Aquila Chrysaetos), Misty Nelson

Institute for Natural Resources Publications

Oregon state conservation status assessment for Golden Eagle (Aquila chrysaetos) using NatureServe methodology, 2024.

Oregon State Rank Assessment For Yellow Bumblebee (Bombus Fervidus), Misty Nelson

Institute for Natural Resources Publications

Oregon state conservation status assessment for Yellow bumblebee (Bombus fervidus) using NatureServe methodology, 2023.

Oregon State Ranking Assessment For Morrison Bumblebee (Bombus Morrisoni), Misty Nelson

Institute for Natural Resources Publications

Oregon state conservation status assessment for Morrison bumblebee (Bombus morrisoni) using NatureServe methodology, 2023.

The Distribution And Reproductive Success Of The Western Snowy Plover Along The Central And Southern Oregon Coast - 2023, David J. Lauten, Kathleen A. Castelein, Mary Lee, Jacey Corrente, Marty R. Mccamant, Eleanor P. Gaines

Institute for Natural Resources Publications

We monitored the distribution, abundance and productivity of the federally threatened Western Snowy Plover (Anarhynchus nivosus nivosus) along the central and south coast of Oregon from 4 April – 15 September 2023. We surveyed and monitored plover activity in a project area that included, from north to south, Sutton Beach, Siltcoos River estuary, the Dunes Overlook, North Tahkenitch Creek, Tenmile Creek, Coos Bay North Spit, Bandon Snowy Plover Management Area, New River Habitat Restoration Area (HRA) and adjacent lands, and Floras Lake. Our objectives for the project area in 2023 were to: 1) estimate the size of the adult Snowy …

Oregon State Rank Assessment For Northern Leopard Frog (Lithobates Pipiens), Misty Nelson

Institute for Natural Resources Publications

Oregon state conservation status assessment for Northern leopard frog (Lithobates pipiens) using NatureServe methodology, 2023.

How Beavers (Castor Canadensis) Affect Habitat Availability For Two Native Oregon Turtles: Actinemys Marmorata And Chrysemys Picta Bellii, Rodé Krige

University Honors Theses

Oregon is home to two native freshwater turtle species: the northwestern pond turtle and the western painted turtle. Both turtles are Oregon conservation strategy species with a status rating of sensitive, indicating declining populations. Oregon’s decline in these turtle’s populations is thought to be predominantly due to loss and degradation of habitat that results from development and urbanization. Beavers’ ability to dam streams and create ponds may be creating habitat usable by turtles, but the relationship is under-studied. This study assessed water temperature, basking habitat, and overall turtle habitat suitability at beaver-dammed and control ponds in Portland, Oregon. Average basking …

Oregon State Ranking Assessment For Harney Basin Duskysnail (Colligyrus Depressus), Misty Nelson

Institute for Natural Resources Publications

Oregon State Ranking Assessment for Harney Basin Duskysnail (Colligyrus depressus) by the Oregon Biodiversity Information Center, following NatureServe 2023 methodology.

Oregon State Rank Assesment For Johnson's Hairstreak (Callophrys Johnsoni), Misty Nelson

Institute for Natural Resources Publications

Oregon state conservation status assessment for Johnson's hairstreak (Callophrys johnsoni) using NatureServe methodology, 2023.

Oregon State Ranking Assessment For Columbia Pebblesnail (Fluminicola Fuscus), Misty Nelson

Institute for Natural Resources Publications

Oregon State Ranking Assessment for Columbia pebblesnail (Fluminicola fuscus) by the Oregon Biodiversity Information Center, following NatureServe 2023 methodology.

Oregon State Ranking Assessment For Umatilla Dace (Rhinichthys Umatilla), Misty Nelson

Institute for Natural Resources Publications

Oregon State Ranking Assessment for Umatilla dace (Rhinichthys umatilla) by the Oregon Biodiversity Information Center, following NatureServe 2023 methodology.

Oregon State Rank Assessment For Klamath Lamprey (Lampetra Similis), Misty Nelson

Institute for Natural Resources Publications

Oregon state conservation status assessment for Klamath Lamprey (Lampetra similis) using NatureServe methodology, 2023.

Oregon State Rank Assessment For Pit-Klamath Brook Lamprey (Entosphenus Lethophagus), Misty Nelson

Institute for Natural Resources Publications

Oregon state conservation status assessment for Pit-Klamath brook lamprey (Entosphenus lethophagus) using NatureServe methodology, 2023.

Oregon State Ranking Assessment For Preble's Shrew (Sorex Preblei), Misty Nelson

Institute for Natural Resources Publications

Oregon State Ranking Assessment for Preble's shrew (Sorex preblei) by the Oregon Biodiversity Information Center, following NatureServe 2023 methodology.

Oregon State Rank Assessment For Great Basin Spadefoot (Spea Intermontana), Misty Nelson

Institute for Natural Resources Publications

Oregon state conservation status assessment for Great Basin spadefoot (Spea intermontana) using NatureServe methodology, 2023.

Oregon State Ranking Assessment For Lewis's Woodpecker (Melanerpes Lewis), Misty Nelson

Institute for Natural Resources Publications

Oregon State Ranking Assessment for Lewis's woodpecker (Melanerpes lewis) by the Oregon Biodiversity Information Center, following NatureServe 2023 methodology.

Oregon State Rank Assessment For Oregon Spotted Frog (Rana Pretiosa), Misty Nelson

Institute for Natural Resources Publications

Oregon state conservation status assessment for Oregon spotted frog (Rana pretiosa) using NatureServe methodology, 2023.

Oregon State Rank Assessment For Western Toad (Anaxyrus Boreas), Misty Nelson

Institute for Natural Resources Publications

Oregon state conservation status assessment for Western toad (Anaxyrus boreas) using NatureServe methodology, 2023.

Genetic Considerations For The Conservation Of The Red Junglefowl, Courtney Lee Mcpheron

University Honors Theses

The undomesticated wild populations of our domestic species deserve heightened consideration when it comes to their conservation. Not only do they carry significant socio-cultural and economic roles, but they offer an exceptionally unique case study for population genetics. The red junglefowl (Gallus gallus) of southern and south-eastern Asia is considered to be the living ancestor and progenitor of the domestic chicken. This literature review examines how published research has evaluated its genetic relationship with the chicken and implications for its conservation. A special emphasis is given to the threat of genetic introgression with domestic and feral chicken populations …

Management Plan For The Western Painted Turtle At The Sandy River Delta In Troutdale, Oregon, Emma Scott

Environmental Science and Management Professional Master's Project Reports

This management plan has been prepared for the Lower Columbia Estuary Partnership and is intended to provide guidance for the improvement and protection of western painted turtle (Chrysemys picta bellii) habitat at the Sandy River Delta in Troutdale, Oregon. The Sandy River Delta is a 1500-acre natural area situated where the Columbia and Sandy Rivers meet. Its dynamic floodplain habitat supports a diverse assemblage of species, including the western painted turtle, an Oregon Conservation Strategy Species. A small, unknown number of western painted turtles utilize the wetland habitats of the Sandy River Delta, and the frequency in observations …

Oregon State Rank Assessment For Pacific Brook Lamprey (Lampetra Pacifica), Eleanor P. Gaines

Institute for Natural Resources Publications

Oregon state conservation status assessment for Pacific Brook Lamprey (Lampetra pacifica) using NatureServe methodology, 2023.

Oregon State Rank Assessment For California Slender Salamander (Batrachoseps Attenuatus), Misty Nelson

Institute for Natural Resources Publications

Oregon state conservation status assessment for California Slender Salamander (Batrachoseps attenuatus) using NatureServe methodology, 2023

The Distribution And Reproductive Success Of The Western Snowy Plover Along The Oregon Coast - 2022, David J. Lauten, Kathleen A. Castelein, Daniel Farrar, Mary Lee, Eleanor P. Gaines

Institute for Natural Resources Publications

We monitored the distribution, abundance and productivity of the federally threatened Western Snowy Plover (Charadrius nivosus nivosus) along the central and south coast of Oregon from 1 April – 15 September 2022. We surveyed and monitored plover activity in a project area that included, from north to south, Sutton Beach, Siltcoos River estuary, the Dunes Overlook, North Tahkenitch Creek, Tenmile Creek, Coos Bay North Spit, Bandon Snowy Plover Management Area, New River Habitat Restoration Area (HRA) and adjacent lands, and Floras Lake. Our objectives for the project area in 2022 were to: 1) estimate the size of the adult Snowy …

Urban Nesting Biology, Population Viability And Ecology Of The Willow Flycatcher, Empidonax Traillii, Stephanie Alexandra Byrne Doorly

Dissertations and Theses

Reproductive success, in any species, relies both on the habitat utilized to reproduce and on the successful reproductive output of individual animals within a population. Populations in turn rely on the reproductive fitness of the individual. Whether populations remain stable, grow, or decline ultimately relies on the combined reproductive output of the individuals within that population.

We studied the Willow Flycatcher (Empidonax traillii; henceforth WIFL), a well-studied Neartic-Neotropical migrant passerine whose breeding range extends from the east to west coast of North America. Across much of their range, and in particular in the western regions, breeding population are …

Oregon State Rank Assessment For Columbia Torrent Salamander (Rhyacotriton Kezeri), Eleanor P. Gaines

Institute for Natural Resources Publications

Oregon state conservation status assessment for Columbia torrent salamander (Rhyacotriton kezeri) using NatureServe methodology, 2022.

Oregon State Rank Assessment For Southern Torrent Salamander (Rhyacotriton Variegatus), Eleanor P. Gaines

Institute for Natural Resources Publications

Oregon state rank assessment for Southern torrent salamander (Rhyacotriton variegatus) following NatureServe methodology, 2022.

Oregon State Rank Assessment For Cascades Frog (Rana Cascadae), Eleanor P. Gaines

Institute for Natural Resources Publications

Oregon state conservation status assessment for Cascades frog (Rana cascadae) using NatureServe methodology, 2022.

Oregon State Rank Assessment For Red Tree Vole (Arborimus Longicaudus), Eleanor P. Gaines

Institute for Natural Resources Publications

Oregon state conservation status assessment for Red tree vole (Arborimus longicaudus) using NatureServe methodology, 2022.

Oregon State Rank Assessment For Moose (Alces Alces), Eleanor P. Gaines

Institute for Natural Resources Publications

No abstract provided.

A Review Of Current Sea Cucumber And Apostichopus Californicus Knowledge And A Proposal For Future Research And Fishery Management, Lily Haug

University Honors Theses

The sea cucumber species Apostichopus californicus is fished in the Pacific Northwest region of North America and has the potential to be an economically beneficial fisheries species. An understanding of their population levels must be present to sustainably regulate their harvest. Current fisheries in North America vary in their methodology and level of regulation. The current regulations are presented and their strengths and shortfalls are described. This review gathers research done on tropical sea cucumber species and presents that knowledge alongside that regarding Apostichopus californicus to suggest future research and fishery management strategies. A. californicus takes four years to sexually …