San Diego Natural History Museum--Your Nature Connection[BRCC San Diego Natural History Museum: Herpetology Department]

BRCC
Birds and Mammals
Post-fire Studies

Birds
 -Introduction
 -Species Tables
 -Species Graphs
 -Species Groupings
 -Census Routes
     Pines Fire Table
     Pines Fire Map
     Cuyamaca Map
     Cedar Fire Table
     Cedar Fire Map
 -Conclusions
 -Acknowledgements

Mammals
 -Introduction
 -Chaparral
     Rodents
     Carnivores
     Bats
     Vegetation
 -Coastal Sage      Rodents
     Vegetation

Field Guide


CONTACT:
Phil Unitt
619.255.0235
fax: 619.232.0248
birds@sdnhm.org

Birds

In July and August 2002 the Pines fire burned 51.4 square miles mainly along the east slope of the Peninsular Ranges from Hot Springs Mountain south almost to Mount Laguna. At the time it was the San Diego County’s second-largest fire since the keeping of accurate records in 1910, exceeded only by the Laguna fire (272 square miles) of 1970. Anne Fege, then supervisor of the Cleveland National Forest, encouraged local biologists to take advantage of the opportunity to study the effects of a large wildfire. The fire came shortly after completion of field work for the San Diego County bird atlas (Unitt 2004), and many of the volunteers participating in that effort were interested in and available for following up the effects of the fire in areas they had so recently studied. So in December 2002 we began counts to evaluate the effects of that fire on birds.

The following year the Cedar fire burned all of central San Diego County from Marine Corps Air Station Miramar and the edges of the towns of Santee, Lakeside, and El Cajon east to Julian and the Laguna Mountains, meeting the zone burned in the Pines fire along Sunrise Highway in the Laguna Mountains. Confronted with this twist, we continued with the Pines fire study as designed but, with the sponsorship of California State Parks, added survey routes in the mixed coniferous/oak forest of the Cuyamaca Mountains. This habitat was touched only marginally by the Pines fire study, but because of the near isolation of the forest on the Cuyamaca Mountains from other similar forests on Volcan Mountain to the north (partly burned in the Pines fire) and the Laguna Mountains to the southeast (partly burned in the Cedar fire) and the fire’s intensity (canopy completely consumed over 90% of the forest), the effects of the fire could be especially severe there. Also, with the sponsorship of the U.S. Forest Service, we added survey routes in the Cleveland National Forest in areas burned on the coastal slope in coordination with a study to evaluate the effects of the fire on mammals in the same area. Thus the study covers the full range of habitats burned in the foothills and mountains, though it omits sage scrub at lower elevations home to such threatened species as the California Gnatcatcher (Polioptila californica) and San Diego Cactus Wren (Campylorhynchus brunneicapillus sandiegensis).