Catalina Island’s mule deer population is facing imminent eradication after a county judge denied a preliminary injunction sought by opponents, paving the way for the Santa Catalina Island Conservancy to execute a five-year culling plan. For nearly a century, the ungulates have roamed the southern California island’s waterfronts and woodlands, becoming a familiar sight in downtown Avalon. According to the conservancy, an estimated 200 deer will be hunted with rifles over the next two months as part of the broader effort to clear the non-native species and protect native ecosystems.
Legal Battles and Public Opposition to the Catalina Deer Culling
The push to remove the island’s estimated 2,000 mule deer has sparked fierce public opposition, uniting animal activists and hunters in legal challenges to halt the process. According to the conservancy, an online petition opposing the move has gathered more than 32,000 signatures. Los Angeles County Supervisor Janice Hahn asked California Governor Gavin Newsom to intervene earlier in the week, opposing what she termed a plan to systematically slaughter the deer over the next five years. However, according to the final ruling issued on Thursday by a county judge, the preliminary injunction was denied, allowing the conservancy to move forward.
Ecological Impact and Wildfire Risks on Catalina Island
Wildlife experts and plant biologists statewide support the removal, citing severe environmental damage caused by the deer. According to Anna L Jacobsen, a plant biologist at California State University, Bakersfield, the deer consume native shrubs already stressed by climate change, preventing the vegetation from recovering and leading to local extinctions. These native plants are subsequently replaced by invasive grasses that ignite and spread fire faster. Max Moritz, a wildfire specialist advising state and local governments, noted that southern California wildfire prevention has increasingly focused on managing ignitions due to dangerous seasonal fires.
Comparison of Island Restoration Precedents
The eradication of non-native ungulates on California’s Channel Islands has precedent, yielding positive results for native species according to historical records. On Santa Rosa Island, Roosevelt elk and mule deer introduced for recreational hunting were successfully eliminated in 2011 to allow native flora to recover. Similarly, on Santa Cruz Island, the complete removal of cows, sheep, and pigs by 2007 provided an opportunity for the native and formerly endangered Santa Cruz Island fox population to rebound.
Did you know? Mule deer were first introduced to Santa Catalina Island for sport by hunters in the 1920s. What began as a population of a few quickly grew to a few thousand, and save for minor dips in drought seasons, the island’s deer population has not dwindled.
Conservancy Methods and Carcass Management
According to Pepe Barton, director of communications for the Santa Catalina Island Conservancy, alternatives such as contraception, sterilization, and fencing were evaluated but deemed infeasible for a population of this scale. The California Department of Fish and Wildlife approved the restoration management permit in January. Under the plan, professionals will likely use drones, thermal technology and dogs to detect the deer before shooting them, primarily at night, alongside a final limited hunting season for island residents from late October to mid-December of this year. Barton stated that meat from the culling will be distributed to the California condor recovery program and local tribal groups, while carcasses in steep terrain will decompose naturally and those near trails or roads will be removed.

Frequently Asked Questions
Why are the deer being removed from Catalina Island?
According to the Santa Catalina Island Conservancy and supporting scientists, the deer consume native shrubs and promote the spread of invasive grasses that increase wildfire risks across the island.
How many deer live on Catalina Island?
The island’s mule deer population is estimated at roughly 2,000 to 2,200 animals.
What will happen to the deer meat after the culling?
According to the conservancy, harvested deer meat will be directed to the California condor recovery program and local tribal groups.
Were non-lethal methods considered for population control?
The conservancy evaluated contraception, sterilization, fencing, and introduction of predators, but concluded those methods were infeasible for managing the large population.
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