Burns Piñon Ridge Reserve

The Burns Piñon Ridge Reserve is a 303-acre (123 ha) nature reserve that is part of the University of California Natural Reserve System.[1] It is located near Yucca Valley, California in San Bernardino County, California. Administered by UC Irvine, the reserve is owned by the University of California and managed for teaching and research.[2]

Burns Piñon Ridge Reserve
LocationSan Bernardino County, California
Coordinates34°08′57″N 116°27′15″W
Area303 acres (0.473 sq mi)
Established1972
Governing bodyUniversity of California, Irvine
Websitehttp://burns.ucnrs.org/

Reserve lands form a transition zone, or ecotone, between the high-elevation ecosystems of the San Bernardino Mountains and the lower, hotter Mojave Desert.

History

From 1947 to 1972, the reserve was owned by Bruce and Jean Burns. The couple built a home and raised a family there before selling much of the property to the University. The Burns house now serves as a field station that provides accommodations for reserve visitors. The University purchased the remainder of the Burns land in 1990.[3]

Geology

The most salient feature of the reserve are its weathered boulder hills. Because the reserve lies in the rain shadow of the San Bernardino Mountains, millions of years of drying eroded the soils. Wind blew away much of the soil, exposing the granitic bedrock below. Additional spalling produced the characteristic look of the reserve’s boulder piles.

Ecology

Habitats at the reserve include desert, a freshwater seep, and a wash. Vegetation typical of the high elevation Mojave, such as Joshua trees (Yucca brevifolia), nolina (Nolina parryi), and the reserve’s namesake, the piñon pine (Pinus monophylla) grow atop the dry hills.

The wash supports lower-elevation desert plants such as desert willow (Chilopsis linearis subsp. arcuata), mesquite (Prosopis glandulosa var. torreyana) and catclaw (Senegalia greggii).

Perennially moist lower Railroad Wash sustains Muller’s oak (Quercus cornelius-mulleri) and rushes (Juncus sp.)

Two species of quail mingle on the reserve, mountain (Oreortyx pictus) and Gambel’s (Callipepla gambelii) "NRS: Burns Piñon Ridge Reserve". UC Irvine Natural Reserve System. UC Irvine. Retrieved 16 February 2016.. Other common fauna include horned lizards, coachwhip snakes, and phainopepla. Two new beetle species discovered in the wash were described in 2011.[4]

References
  1. Fiedler, P.L., Rumsey, S.G., Wong, K.W. eds. (2013). The Environmental Legacy of the UC Natural Reserve System. University of California Press. pp. 167–170. ISBN 9780520272002. part of the University of California Natural Reserve SystemCS1 maint: uses authors parameter (link)
  2. UC Natural Reserve System. "Burns Piñon Ridge Reserve", Retrieved on 16 February 2016.
  3. Fiedler, P.L., Rumsey, S.G., Wong, K.W. eds. (2013). The Environmental Legacy of the UC Natural Reserve System. University of California Press. pp. 167–170. ISBN 9780520272002. part of the University of California Natural Reserve SystemCS1 maint: uses authors parameter (link)
  4. "Archived copy". Archived from the original on 2015-12-22. Retrieved 2015-12-12.CS1 maint: archived copy as title (link)
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