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CONFERENCE SCHEDULE UPDATES & CHANGES: As a result of the prolonged government shutdown, we experienced a number of cancellations and changes to the schedule. Cancellations and changes are listed here (as of January 26, 2019). 

Monday, January 28 • 3:20pm - 3:40pm
(FISHERIES: FISH CONSERVATION) Distributions Across an Island: Using SDMs to Conserve an Imperiled Sucker

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AUTHORS: Seth J. Fopma, South Dakota State University; Brian D.S. Graeb, South Dakota State University; Tammy Wilson, National Park Service

ABSTRACT: Described as an “island on the prairie” the Black Hills are a small range of mountains arising from a sea of short and mid-grass prairies. Upwelling from the center of the hills, flowing outward are numerous, cold-water streams lacking connectivity to regional cold-water networks. Many species that inhabit local streams are subsequently isolated from conspecific populations, posing unique management challenges. Climate change, predicted to alter local climatic patterns (intensified wet and dry cycles, general warming), potentially further limits species distributions within the island. Mountain Sucker (Catostomus platyrhynchus) is listed as a management indicator species for the Black Hills of South Dakota by South Dakota’s department of Game Fish and Parks, and is used as a proxy for regional ecosystem health. Surveys conducted between 2008 and 2010 revealed that populations had been in decline in both distribution and local abundance. Population surveys conducted between 2014 and 2017 were used to generate species distribution models (SDMs) for this regionally imperiled species. Model predictions are expected to be driven by stream permanency and connectivity. Predictions were compared to 2018 empirical observations to assess model accuracy. Accurate models allow managers to more efficiently identify local populations, impacts of climate change and target conservation efforts.

Monday January 28, 2019 3:20pm - 3:40pm
CENTER STREET ROOM C

Attendees (3)