Zoology Commons^™

Surveys For Rare Springsnails In Southeast Oregon, 2025 With A Focus On The Donner Und Blitzen Pebblesnail (Fluminicola Insolitus), Jesse Laney

Institute for Natural Resources Publications

The Donner und Blitzen pebblesnail (Fluminicola insolitus) is a critically imperiled (G1/S1) freshwater snail historically known from a single spring, Page Springs, in the Donner und Blitzen River drainage of Harney County, Oregon. The species was petitioned for listing under the U.S. Endangered Species Act in February 2024. On January 26, 2026, the U.S. Fish and Wildlife Service published a positive 90-day finding initiating species status review (USFWS 2026).

In August 2025, the Oregon Biodiversity Information Center (ORBIC) at Portland State University, in coordination with the Nevada Division of Natural Heritage (NDNH), the U.S. Fish and Wildlife Service (USFWS), and …

Rare, Threatened And Endangered Zoology Species Of Oregon (2025), Jesse Laney, Eleanor P. Gaines, Lindsey K. Wise, Misty Nelson

Institute for Natural Resources Publications

This publication provides a 2025 update to the rare, threatened, and endangered zoology species of Oregon. Species lists are also provided in Excel format.

The Oregon Biodiversity Information Center (ORBIC) is part of the Institute for Natural Resources (INR) located at Portland State University (PSU). ORBIC maintains extensive databases of Oregon biodiversity, concentrating on rare and endangered plants, animals and ecosystems. Since its creation in 1979 as the Oregon Natural Heritage Program, ORBIC has been part of the Natural Heritage network. ORBIC is a constituent member of NatureServe, a non-profit organization with a mission to provide the scientific basis for …

Oregon State Rank Assessment For Mardon Skipper (Polites Mardon), Eleanor P. Gaines

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Oregon state conservation status assessment for Mardon skipper (Polites mardon) using NatureServe methodology, 2024.

Oregon State Rank Assessment For Wolverine (Gulo Gulo), Misty Nelson, Eleanor P. Gaines

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Oregon state conservation status assessment for wolverine (Gulo gulo) using NatureServe methodology, 2024.

Oregon State Rank Assessment For Camas Pocket Gopher (Thomomys Bulbivorus), Eleanor P. Gaines

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Oregon state conservation status assessment for Camas pocket gopher (Thomomys bulbiforus) using NatureServe methodology, 2024.

Oregon State Rank Assessment For Warner Basin Tui Chub (Siphateles Bicolor Ssp. 15), Eleanor P. Gaines, Jesse Laney

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Oregon state conservation status assessment for Warner Basin tui chub (Siphateles bicolor ssp. 15) using NatureServe methodology, 2024.

Oregon State Rank Assessment For Catlow Tui Chub (Siphateles Bicolor Ssp. 2), Jesse Laney

Institute for Natural Resources Publications

Oregon state conservation status assessment for Catlow tui chub (Siphateles bicolor ssp. 2) using NatureServe methodology, 2024.

Oregon State Rank Assessment For Sheldon Tui Chub (Siphateles Bicolor Eurysoma), Eleanor P. Gaines

Institute for Natural Resources Publications

Oregon state conservation status assessment for Sheldon tui chub (Siphateles bicolor eurysoma) using NatureServe methodology, 2024.

Oregon State Rank Assessment For Nerite Ramshorn (Vorticifex Neritoides), Jesse Laney

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Oregon state conservation status assessment for nerite ramshorn (Vorticifex neritoides) using NatureServe methodology, 2024.

Oregon State Rank Assessment For Yuma Myotis (Myotis Yumanensis), Jesse Laney

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Oregon state conservation status assessment for Yuma myotis (Myotis yumanensis) using NatureServe methodology, 2024.

Oregon State Rank Assessment For Mann's Mollusk-Eating Ground Beetle (Scaphinotus Mannii), Jesse Laney

Institute for Natural Resources Publications

Oregon state conservation status assessment for Mann's mollusk-eating ground beetle (Scaphinotus mannii) using NatureServe methodology, 2024.

Oregon State Rank Assessment For Obscure Bumblebee (Bombus Caliginosus), Jesse Laney, Eleanor P. Gaines

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Oregon state conservation status assessment for obscure bumblebee (Bombus caliginosus) using NatureServe methodology, 2024.

Oregon State Rank Assessment For Goose Lake Tui Chub (Siphateles Bicolor Thalassinus), Jesse Laney

Institute for Natural Resources Publications

Oregon state conservation status assessment for Goose Lake tui chub (Siphateles bicolor thalassinus) using NatureServe methodology, 2024.

Oregon State Rank Assessment For Flightless Haliplid Beetle (Apteraliplus Parvulus), Eleanor P. Gaines

Institute for Natural Resources Publications

Oregon state conservation status assessment for flightless haliplid beetle (Apteraliplus parvulus) using NatureServe methodology, 2024.

Oregon State Rank Assessment For Goose Lake Lamprey (Entosphenus Tridentatus Ssp. 1), Eleanor P. Gaines

Institute for Natural Resources Publications

Oregon state conservation status assessment for Goose Lake lamprey (Entosphenus tridentatus ssp. 1) using NatureServe methodology, 2024.

Oregon State Rank Assessment For Columbia Mottled Sculpin (Cottus Hubbsi), Eleanor P. Gaines

Institute for Natural Resources Publications

Oregon state conservation status assessment for Columbia mottled sculpin (Cottus hubbsi) using NatureServe methodology, 2024.

Oregon State Rank Assessment For Salamander Slug (Gliabates Oregonius), Eleanor P. Gaines

Institute for Natural Resources Publications

Oregon state conservation status assessment for salamander slug (Gliabates oregonius) using NatureServe methodology, 2024.

Oregon State Rank Assessment For Rocky Mountain Red Fox (Vulpes Vulpes Macroura), Eleanor P. Gaines

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Oregon state conservation status assessment for Rocky Mountain red fox (Vulpes vulpes macroura) using NatureServe methodology, 2024.

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

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Oregon State Ranking Assessment for Lewis's woodpecker (Melanerpes lewis) by the Oregon Biodiversity Information Center, following NatureServe 2024 methodology.

Oregon State Rank Assessment For Brandt's Cormorant (Phalacrocorax Penicillatus), Misty Nelson, Eleanor P. Gaines

Institute for Natural Resources Publications

Oregon state conservation status assessment for Brandt's cormorant (Phalacrocorax penicillatus) using NatureServe methodology, 2024.

Oregon State Rank Assessment For Western Toad (Anaxyrus Boreas), Eleanor P. Gaines

Institute for Natural Resources Publications

Oregon state conservation status assessment for Western toad (Anaxyrus boreas) using NatureServe methodology, 2024.

Oregon State Rank Assessment For Golden Eagle (Aquila Chrysaetos), Misty Nelson, Eleanor P. Gaines

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

Oregon State Rank Assessment For Black-Backed Woodpecker (Picoides Arcticus), Eleanor P. Gaines

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Oregon state conservation status assessment for Black-backed woodpecker (Picoides arcticus) using NatureServe methodology, 2024.

Oregon State Rank Assessment For Pit Roach (Hesperoleucus Mitrulus), Misty Nelson

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Oregon state conservation status assessment for pit roach (Hesperoleucus mitrulus) using NatureServe methodology, 2023.

Oregon State Rank Assessment For Margined Sculpin (Cottus Marginatus), Misty Nelson

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Oregon state conservation status assessment for margined sculpin (Cottus marginatus) using NatureServe methodology, 2023.

Oregon State Rank Assessment For Oregon Lakes Tui Chub (Siphateles Bicolor Oregonensis), Misty Nelson

Institute for Natural Resources Publications

Oregon state conservation status assessment for Oregon Lakes tui chub (Siphateles bicolor oregonensis) using NatureServe methodology, 2023.

Oregon State Rank Assessment For Malheur Mottled Sculpin (Cottus Bendirei), Misty Nelson

Institute for Natural Resources Publications

Oregon state conservation status assessment for Malheur mottled sculpin (Cottus bendirei) using NatureServe methodology, 2023.

Oregon State Rank Assessment For Klamath Lake Sculpin (Cottus Princeps), Misty Nelson

Institute for Natural Resources Publications

Oregon state conservation status assessment for Klamath Lake sculpin (Cottus princeps) using NatureServe methodology, 2023.

Oregon State Rank Assessment For Shorthead Sculpin (Cottus Confusus), Misty Nelson

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Oregon state conservation status assessment for Shorthead sculpin (Cottus confusus) using NatureServe methodology, 2023.

Oregon State Rank Assessment For Torrent Sculpin (Cottus Rhotheus), Misty Nelson

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Oregon state conservation status assessment for torrent sculpin (Cottus rhotheus) using NatureServe methodology, 2023.