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Trees provide valuable shade for livestock and wildlife during the hot summer. California black oak forest types are heavily used for spring, summer, and fall cover by black bears. It is browsed by deer and livestock. [9] Acorns are heavily used by livestock, mule deer, feral pigs, rodents, mountain quail, Steller's jays, and woodpeckers
Acorns are such an important resource to the California populations that acorn woodpeckers may nest in the fall to take advantage of the fall acorn crop, a rare behavior in birds. [19] Acorns are stored in small holes drilled especially for this purpose in "granaries" or "storage trees"—usually snags, dead branches, utility poles, or wooden ...
Oaks produce more acorns when they are not too close to other oaks and thus competing with them for sunlight, water and soil nutrients. The fires tended to eliminate the more vulnerable young oaks and leave old oaks which created open oak savannas with trees ideally spaced to maximize acorn production.
Acorns per pound range from 200 to 750. Acorns mature from August to November of the second year. Trees begin bearing acorns when they are about 25 years old, and optimum production is reached when they are between 50 and 75 years of age. Good acorn crops are frequent, occurring at 1- or 2-year intervals, with light crops in intervening years.
This study had begun in October 1960 with Ohio acorns, and unfolded two years later in 1962 to include more oak trees in the U.S. [3] When looking particularly at the life history of C. posticatus, it was revealed that the larvae of the C. posticatus species had gone through 5 instars, where they emerged in 14 days from bur oak acorns and 30 ...
Quercus douglasii, known as blue oak, is a species of oak endemic to California, common in the Coast Ranges and the foothills of the Sierra Nevada. [4] It is California's most drought-tolerant deciduous oak, [5] and is a dominant species in the blue oak woodland ecosystem. It is occasionally known as mountain oak and iron oak. [6] [7]
The acorns of the Shumard oak provide food for various songbirds, game birds such as wild turkey and quail, waterfowl, white-tailed deer, feral hogs, and various rodents such as squirrels. The leaves and twigs can also provide browse for white-tailed deer. [6] Oak wilt can attack all red oaks, including
Quercus lyrata, the overcup oak, is an oak in the white oak group (Quercus sect. Quercus). The common name, overcup oak, refers to its acorns that are mostly enclosed within the acorn cup. [ 3 ] It is native to lowland wetlands in the eastern and south-central United States, in all the coastal states from New Jersey to Texas , inland as far as ...