California Department of Forestry and Fire Protection, Strategic and Resources Planning Program We studied how management practices, stand characteristics, and site factors interact to affect blue oak Quercus douglasii sapling establishment. We assessed regeneration and associated variables in a total of plots distributed among fifteen acre study locations which were dispersed across the range of blue oak in California.
What distinguishes this butterfly from others, and gives it its name are the spots of silver scales on the bottom of the wings U. There is only one plant that the Callippe Silverspot will lay their eggs, and that is on a Jump-up, a relative of the violet.
Once the larvae hatch in the early summer they begin to feed on the egg shell before going into a dormant stage of inactivity and low metabolism U.
After winter is over the caterpillar emerge from their silk pad and feed on the now green Jump-up. Then for the next two to three months they eat and shed their skin four times Hautala. They finally make a pupae of leaves and silk for themselves and stay in there for about two weeks before emerging as a butterfly The Butterfly Conservation Initiative, Their adult life will then last for approximately 3 weeks consisting of sipping on nectar from thistles, mints, and other flowers, mating and laying eggs Hautala.
The butterfly is now only known to have populations in the San Bruno Mountains, about 10mi south of the bay, and in an undisclosed city park in Alameda U. Since the greater area of their habitat is now inhabited by cityscape and suburbia, along with implementation of imported plant species, the Jump-up has lost most of its breading ground in that region, resulting in the decline of the Callippe Silverspot.
All that can be done for now is planting more of the host plant that the butterfly relies on to survive. Choose Type of service.The callippe silverspot butterfly (Speyeria callippe callippe) is a federal endangered species in the brush-footed butterfly family Nymphalidae.
This is a subspecies. This is a subspecies. It is a member of the Heliconiinae, the subfamily known as timberdesignmag.com: Euarthropoda.
Butterflies and Bulldozers on an Island of Time. by Susan Zakin. April 1, the Mission blue (Icaricia icarioides missionensis), the Callippe silverspot (Speyeria callippe callippe) Sedum spathufolium, a succulent that the elfin butterfly lives on as a red caterpillar; and Johnny-jump-up (Viola pedunculata.
Callippe Environmental Approach To the West of the golf course is protected grazing land designated as a preserve for the endangered Callippe Silverspot butterfly. This species of butterfly is native only to the local hills surrounding the golf course.
The butterfly lays its eggs on native viola plants that come up in soft soil from. Viola (butterfly) topic. Viola is a genus of skippers in the family Hesperiidae. References Natural History Museum Lepidoptera genus database Viola is a genus of skippers in the family Hesperiidae.
The callippe (ca-LIP-ee) silverspot is a medium-sized butterfly in the brush foot family (Nymphalidae). It has a wingspan of about centimeters ( inches).
The upper wings are brown with extensive black spots and lines, and the basal areas are extremely dark. The Callippe Silverspot Butterfly was listed as a federally endangered species by the USFWS in It occurs in the San Francisco Bay area with isolated populations in the East Bay in the Pleasanton/Livermore area.