As snow melts across the Lake Tahoe region, black bears have emerged from their dens and are searching for food, signaling the start of a busy spring season for wildlife.
Seasonal Outlook and Impacts
Male and female bears without cubs are already active, feeding on early grasses and plants. Warmer-than-average temperatures and low snowpack, however, could reduce the availability of natural food sources later this year.
Some of the most important natural foods for bears include mast, which refers to nuts, seeds and fruits produced by trees and shrubs. Mast is categorized as hard mast, such as nuts and seeds, and soft mast, such as berries. These food sources are influenced by temperature and precipitation, which affect their growing season, productivity and timing.
With Lake Tahoe snowpack at just 24% of the April average and warm temperatures prematurely melting snow, the Tahoe Basin is likely to see a shortened growing season with average or below average mast productivity.
Black bears are highly adaptable and will shift to other natural food sources, including insects and small mammals. However, studies show that bears living near urban areas often turn to human-related food sources when natural foods are scarce.
“What puts bears at greatest risk isn’t a lack of natural food, it’s access to ours. Encouraging close interactions, allowing bears to den under homes, or feeding bears (intentionally or unintentionally) leads to dangerous outcomes for both bears and people,” explained Bear Management Specialist Sarinah Simons with California State Parks. “If we want healthy bears on the landscape, we need to give them the space to stay wild.”
Bears that rely on human-provided food face a higher risk of mortality. In years with poor natural food availability, reported vehicle collisions involving bears have been shown to double or even triple. As bears travel greater distances in search of food, they are more likely to encounter vehicles and unsecured attractants.
How Can You Help?
Residents and visitors can help reduce these risks by securing potential attractants and following the BearWise Six At-Home Basics:
- Never feed or approach bears.
- Secure food, garbage and recycling.
- Remove bird feeders when bears are active.
- Never leave pet food outdoors.
- Clean and store grills and smokers.
- Alert neighbors to bear activity.
Properly securing garbage is one of the most effective ways to prevent bear conflicts. Food and trash should never be left in vehicles, and vehicle doors and windows should remain closed and locked.
Bird feeders should be removed. A single pound of black oil sunflower seeds contains approximately 2,500 calories, making it a high-reward food source for bears. Alternative methods for attracting birds without attracting bears are available through the BearWise bulletin: Attracting Birds, Not Bears.
Property owners can also take steps to secure buildings. Keeping doors and windows locked can help prevent bears from entering structures. For wooden garage doors, electric deterrents such as wiring or mats may help prevent damage. The Tahoe Interagency Bear Team (TIBT) highly recommend utilizing the BearWise Host Set to display helpful information for your guests.
Lake Tahoe is prime bear country, and it is the responsibility of everyone living in, visiting or recreating in the Tahoe Basin to secure food, trash and other scented items. Consistent practices help keep bears healthy and wild.
Call the Experts
Spring is also the time of year residents or visitors may see a bear they believe looks unhealthy, sick or orphaned. Bear health concerns should be reported to the TIBT’s wildlife professionals at the California Department of Fish and Wildlife (CDFW) or the Nevada Department of Wildlife (NDOW). These agencies have the training, expertise, and veterinary resources to assess a bear’s condition and transport it for care, if needed.
For more great tips about living responsibly with bears, visit tahoebears.org and bearwise.org.
To report human-bear conflicts:
- In California, contact CDFW at (916) 358-2917 or report online using the Wildlife Incident Reporting system at apps.wildlife.ca.gov/wir.
- Non-emergency wildlife interactions in California State Parks can be reported to their public dispatch at 916-358-1300.
- In Nevada, contact NDOW at 775-688-BEAR (2327).
- If the issue is an immediate threat, call the local sheriff’s department or 911.
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