2022 Early Hearing Detection & Intervention Virtual Conference
March 13 - 15, 2022
9/26/2018 | 2:55 PM - 3:10 PM | Rangewide Lesser Prairie-Chicken Population Persistence with Climate Change | Eccles Conference Center Auditorium
Rangewide Lesser Prairie-Chicken Population Persistence with Climate Change
The lesser prairie-chicken (Tympanuchus pallidicinctus; LEPC) has been a species of conservation concern for more than two decades. Varying life history strategies across the species’ four ecoregion distribution complicate range-wide management. Weather events influence nearly all vital rates for LEPCs though their effects vary by ecoregion. To assess the effect of environmental conditions on population trends across the distribution of the species, we collected adult female, nest, and brood survival data in the short-grass prairie (SGP; 2013–2014), the sand sagebrush (Artemisia filifolia) prairie (SBP; 1997–2002), the sand shinnery oak (Quercus havardii) prairie (SOP; 2000–2011), and the mixed-grass prairie (MGP; 2013–2014) ecoregions. For each ecoregion, we selected 3 seasonal weather parameters for each vital rate. Seasonal weather parameters included averages and extremes for both temperature and precipitation. We used an integrated population model in a Bayesian framework incorporating lek counts and vital rates to assess effects of weather on each vital rate by ecoregion. Though adapted to droughts, shifting weather patterns predicted by climate change models may alter vital rates and their ability to recover from droughts. Climate change had the least influence on the SBP ecoregion, in the middle of the species range. Climate projections in the short-grass ecoregion are outside of the historical range for that region, resulting in high levels of uncertainty about future population trends. Models for southern populations in the MGP and SOP project severe declines resulting in extinction for most climate projections unless managers take sufficient conservation efforts.
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Presenters/Authors
Alixandra Godar
(), ajgodar@ksu.edu;
Division of Biology
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Cody Griffin
(), Florida Fish and Wildlife Conservation Commission, cody.griffin@myfwc.com;
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Blake Grisham
(), Texas Tech University, Blake.Grisham@ttu.edu;
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Beth Ross
(), U.S. Geological Survey, bross5@clemson.edu;
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Clint Boal
(), USGS Texas Cooperative Fish and Wildlife Research Unit, clint.boal@ttu.edu;
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Daniel Greene
(), Southern Timberlands Technology- Weyerhaeuser Company, Daniel.Greene@weyerhaeuser.com;
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Christian Hagen
(), Oregon State University, Christian.Hagen@oregonstate.edu;
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David Haukos
(), dhaukos@ksu.edu;
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Michael Patten
(), University of Oklahoma, mpatten@ou.edu;
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Jim Pitman
(), Western Association of Fish and Wildlife Agencies, jim.pitman@wafwa.org;
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