Jan 19
Bark Beetles: Forest Pests or Ecosystem Engineers?
19 Jan, 2017. 0 Comments. Services, Uncategorized. Posted By: Jeff Davis
For animals roughly the size of a grain of rice, bark beetles can exact a disproportionate effect on the landscapes they inhabit. In the face of a changing climate, these tiny insects are calling an entire philosophy of forest management into question, redirecting the conversation from artificial control by harvesting timber to natural control by maintaining genetic diversity. A short trip east of Fresno, California to the western Sierra’s Shaver Lake basin helps illustrate the impact bark beetles can have on a forest. As you leave the oak woodland of the foothills and climb into the conifer forest surrounding Shaver Lake,…
Jul 6
California’s Great Gray Owl
6 Jul, 2016. 0 Comments. Services, Surveys, Uncategorized. Posted By: Jeff Davis
The great gray owl is the largest owl in North America. Well, sort of. At about 27 inches, it is certainly the longest. Despite its large dimensions, though, it is comparatively lightweight, weighing nearly 25% less than the great horned owl and nearly 60% less than the snowy owl. As its name suggests, the great gray owl is gray overall, but that gray is admixed with black, white, and brown. It also has a conspicuously large facial disk with concentric rings of dark gray and a prominent white “bow-tie” below its yellow eyes and beak.   In California, the great…
Feb 28
Happy Birthday, Joe!
28 Feb, 2016. 0 Comments. Services, Surveys, Uncategorized. Posted By: Jeff Davis
Joseph Grinnell was born on this date (February 27) in 1877. Grinnell was California’s preeminent naturalist.   Following Grinnell’s death on May 29, 1939, Don McLean, biologist with the California Department of Fish and Game, wrote, “Dr. Grinnell’s knowledge of birds and animals of California and the West was as complete as one person could possibly be capable of assimilating. He was as interested in a small mouse from Death Valley as in a Roosevelt elk from Humboldt County.”   Grinnell was the editor of the Condor for 34 years—far longer than any other editor—and Director of the Museum of…
Apr 22
It was a busy week
22 Apr, 2015. 0 Comments. Services, Surveys. Posted By: Jeff Davis
We carried out live-trapping surveys for the federally and state-listed as endangered San Joaquin kangaroo rat on the valley floor in Kings County, evaluated the effects of vegetation management on habitat for the state-listed as threatened and fully protected limestone salamander in the Merced River Canyon, ensured biological resource protection during hazardous tree removal in Los Padres National Forest, assessed the effects of trenching activities on habitat for the federally and state-listed as endangered and fully protected blunt-nosed leopard lizard on the western edge of the valley floor in Kern County, conducted nesting bird and invasive plant surveys…