Patterns in lek persistence and attendance by lesser prairie-chicken
(Tympanuchus pallidicinctus) near a wind energy facility in southern
Kansas
Abstract
As wind energy development expands across the Great Plains, there is
potential to adversely affect species that require undisturbed tracts of
native grasslands, such as the lesser prairie-chicken (Tympanuchus
pallidicinctus; LEPC). Effects of wind development on LEPC movement and
demographic rates have been minimal when turbines are sited in
cultivated cropland and grassland habitats are available nearby, but
there are gaps in the overall understanding of how LEPC populations will
respond to wind energy development over the long term. Reducing these
knowledge gaps and improving our decision-making process is key to
balancing the needs of the wind energy industry and conservation of the
species. We evaluated trends in LEPC lek attendance and persistence
following construction of the Cimarron Bend Wind Resource Area (CBWRA)
in southern Kansas, USA from 2017-2024. We used Bayesian generalized
linear regression models to evaluate lek stability and the probability
of blinking out with various environmental and anthropogenic covariates.
We modeled total lek attendance with years since facility construction
as a predictor. Of the 37 leks included in analysis, we found leks
located in areas with higher turbine counts and had lower median
attendance during active years were less stable, and leks with higher
grass cover were less likely to blink out over our 8 years of
monitoring. However, these effects did not seem to impact the local LEPC
population at CBWRA, given that the total lek attendance had a positive
trend across the 8-year study, providing additional support that siting
turbines in cultivated croplands and conserving large intact tracts of
grasslands appear to be important minimization measures for LEPC.
Regardless, it remains to be seen how LEPC would be impacted by wind
energy development in intact grassland-dominated landscapes (i.e., core
habitat).