ASSESSING LIVESTOCK GUARDIAN DOG IMPACTS ON COYOTES AND NON-TARGET WILDLIFE BEHAVIOR

Tricia T Nguyen; California Polytechnic State University; tnguy705@calpoly.edu; William T. Bean, John D. Perrine

Livestock guardian dogs (LGDs) are becoming a popular predator management tool for domestic sheep producers in California. Coyotes (Canis latrans) represent a significant proportion of sheep depredations in the United States, costing producers an estimated 40 million dollars annually. While LGDs have long been used worldwide, their use warrants further study due to the site-specific success of predator management and the potential for LGDs to impact non-target species as a novel, non-native predator. We aim to explore the mechanisms by which LGDs deter coyotes and the impacts of LGDs on coyote and non-target species behavior in a novel study region, the California Central Coast. Between 2021 and 2023, we deployed 30 camera traps across three sites with varying levels of LGD presence: completely absent, intermittently present, and always present. I present our study approach and preliminary summary data on the shifts in species activity peaks and in diel overlap between species, species occupancy and richness by site and distance from stationed LGDs. These findings may contribute to a broader understanding of factors contributing to LGD success across regions and their impacts on biodiversity, allowing livestock producers and wildlife managers to make informed decisions about implementing this predator management strategy.

Wildlife and Agriculture II   Student Paper