• View of Half Dome and Washington Column in Yosemite Valley

    Yosemite

    National Park California

There are park alerts in effect.
show Alerts »
  • Tioga Road is Closed for the Winter

    The Tioga Road (Highway 120 through the park) is closed due to snow; it usually reopens in late May or June. You can check on current road conditions by calling 209/372-0200 (press 1 then 1). More »

Wildlife and Other Sightings: Yellowjackets

September 01, 2012 Posted by: BW - Mather District Volunteer Interpretive Ranger
Yellowjackets

Family Vespidae
    
Yellowjacket  Yellowjacket Nest Entrance

August 2012

Yellowjackets have become very common throughout the Hodgdon Meadow and Crane Flat Campgrounds. These social wasps commonly make their nests underground in rodent burrows. The colony begins as a single queen and grows throughout the spring and summer until the population numbers in the thousands. During this time the developing larvae require a large amount of protein, which is brought in by the workers, usually in the form of other insects. Late in the summer the colonies will slow their growth and begin to forage for sugar, the preferred food for adult wasps. Yellowjackets tend to be very persistent around food sources and aggressively defend their nests if disturbed. The best way to prevent these wasps from becoming a nuisance at your campsite is to keep all of your food and garbage in tightly sealed containers. Try to keep food covered while you are eating or eat within an enclosure. Colonies typically only live for one season and these will begin to die off as soon as the temperature begins to drop.  

wildlife




Post A Comment

Submit Comment

Did You Know?

Granite Peaks and Clear Lakes in Torres Del Paine NP

That Yosemite National Park has a sister park in Chile? Parque Nacional Torres del Paine is located among the breath taking scenery of Patagonian Chile. Both parks feature remarkable geology, hydrology, flora and fauna--together the staff of both parks work together to share best practices and care for these landscapes so generations of visitors can revel in their stunning beauty.