Toxicodendron diversilobum, commonly named Pacific poison oak or western poison oak, is a woody vine or shrub in the sumac family, Anacardiaceae. It is widely distributed in western North America, inhabiting conifer and mixed broadleaf forests, woodlands, grasslands, and chaparral biomes. Peak flowering occurs in May. Like other members of the genus Toxicodendron, T. diversilobum causes itching and allergic rashes in most people after contact by touch or smoke inhalation. Despite its name, it is not closely related to oaks, nor is it a true tree.
The acorn, or oaknut, is the nut of the oaks and their close relatives. It usually contains one seed, enclosed in a tough, leathery shell, and borne in a cup-shaped cupule. Acorns are 1–6 cm long and 0.8–4 cm on the fat side. Acorns take between 5 and 24 months to mature; see the list of Quercus species for details of oak classification, in which acorn morphology and phenology are important factors.
Orgyia vetusta, also known as the western tussock moth, formerly Hemerocampa vetusta, is a moth found in the Pacific States and British Columbia. The species is dimorphic; the females are flightless.
Hericium erinaceus, commonly known as the lion's mane mushroom, yamabushitake, bearded tooth fungus, bearded hedgehog, or old man's beard, is an edible mushroom belonging to the tooth fungus group. Native to North America, Europe, and Asia, it can be identified by its long spines, occurrence on hardwoods, and tendency to grow a single clump of dangling spines. The fruit bodies can be harvested for culinary use.
California oak woodland is a plant community found throughout the California chaparral and woodlands ecoregion of California in the United States and northwestern Baja California in Mexico. Oak woodland is widespread at lower elevations in coastal California; in interior valleys of the Coast Ranges, Transverse Ranges and Peninsular Ranges; and in a ring around the California Central Valley grasslands. The dominant trees are oaks, interspersed with other broadleaf and coniferous trees, with an understory of grasses, herbs, geophytes, and California native plants.
Logging in the Sierra Nevada arose from the desire for economic growth throughout California. The California Gold Rush created a high demand for timber in housing construction, mining procedures, and building railroads. In the early days, harvesting of forests were unregulated and within the first 20 years after the gold rush, a third of the timber in the Sierra Nevada was logged. Concern for the forests rose and created a movement towards conservation at the turn of the 19th century, leading to the creation of state and national parks and forest reserves, bringing forest land under regulation. Between 1900 and 1940, agencies like the U.S. Forest Service and National Park Service regulated the use of the Sierra Nevada's resources. The economy boom after World War II dramatically increased timber production in the Sierras using clear-cutting as the dominant form of logging. In addition, the California Forest Practice Act, or the Z'Berg-Nejedly Forest Practice Act was enacted in 1973 to regulate private timberland holdings.
The brush mouse is a species of rodent in the family Cricetidae. It is found in mountainous areas of Mexico and the western United States at altitudes over 2,000 m (6,600 ft).
Quercus vacciniifolia, the huckleberry oak, is a member of the Protobalanus section of genus Quercus. It has evergreen foliage, short styles, very bitter acorns that mature in 18 months, and a woolly acorn shell interior.
Phoradendron villosum is a species of flowering plant in the sandalwood family known by the common names Pacific mistletoe and oak mistletoe. It is native to western North America from Oregon south into Mexico, where it grows in oak woodland and similar habitat.
The North American Bird Banding Program (NABBP), along with its Bird Banding Laboratory (BBL), has its home at the Patuxent Wildlife Research Center. The program is jointly administered by the Canadian Wildlife Service and the United States Geological Survey. The program is responsible for many aspects of bird banding in the United States and Canada: it grants permits to bird banders, fills orders for bands of various sizes, collects data from banding stations, receives reports from people who have found birds carrying bands, and makes its database available to appropriate parties.
i-Tree is a collection of urban and rural forestry analysis and benefits assessment tools. It was designed and developed by the United States Forest Service to quantify and value ecosystem services provided by trees including pollution removal, carbon sequestration, avoided carbon emissions, avoided stormwater runoff, and more. i-Tree provides baseline data so that the growth of trees can be followed over time, and is used for planning purposes. Different tools within the i-Tree Suite use different types of inputs and provide different kinds of reports; some tools use a 'bottom up' approach based on tree inventories on the ground, while other tools use a 'top down' approach based on remote sensing data. i-Tree is peer-reviewed and has a process of ongoing collaboration to improve it.
Ponderosa pine forest is a plant association and plant community dominated by ponderosa pine and found in western North America. It is found from the British Columbia to Durango, Mexico. In the south and east, ponderosa pine forest is the climax forest, while in the more northern part of its range, it can transition to Douglas-fir or grand fir, or white fir forests. Understory species depends on location. Fire suppression has led to insect outbreaks in ponderosa pine forests.
Bluebonnet Swamp Nature Center is a 103-acre nature conservation park administered by the Recreation and Park Commission for the Parish of East Baton Rouge, and located at 10503 N. Oak Hills Parkway, Baton Rouge, Louisiana 70810. It is open to the public Tuesday - Saturday from 9 a.m. to 5 p.m., and Sunday from noon to 5 p.m. for a nominal fee. The facility was opened as BREC's first nature conservation based park on 17 May 1997.
Susan G. Conard is an American scientist whose expertise focuses on wildland fires in Northern California and Taiga. During the 1980s and 1990s, Conard worked as a research and project leader for the United States Forest Service, publishing pieces on fire management and carbon sequestration. She is currently the editor for the International Journal of Wildland Fire.
Cystotheca lanestris, the live oak witch's broom fungus, is a species of mildew that infects buds and induces stem galls called witch's brooms on oak trees in California, Arizona, and Mexico in North America. Witch's brooms are "abnormal clusters of shoots that are thickened, elongated, and highly branched." This fungus infects coast live oaks, interior live oaks, canyon live oaks, valley oaks, and tanoaks, and is most commonly found along the coast. Research published in 2023 newly describes this fungus as also growing in association with in Quercus laceyi and Q. toumeyi.
Inonotus andersonii, also known as oak canker-rot and heart rot, is a species of resupinate polypore fungus that forms fruiting bodies underneath tree bark. I. andersonii induces canker rot in oak, hickory, cottonwood, and willow trees.
Malacosoma constricta, also known as the Pacific tent caterpillar, is a species of moth endemic to North America. Malacosoma constricta is known from California, Oregon, and Washington and is reported only on oaks. In California, subspecies M. constrictum austrinum is found from Santa Barbara County southward; M. constrictum constrictum occurs from Los Angeles County northward.
Stegophylla essigi, also known as the California woolly oak aphid, is a species of North American aphid. It had been found on many California oaks, including blue oaks, valley oaks, Oregon white oaks, coast live oaks, interior live oaks, California black oaks, and scrub oaks.
Synanthedon resplendens, also known as the sycamore borer moth, is species of a clearwing moth native to western North America. Larva of this moth live under the bark of sycamore, ceanothus, coast live oak, and, on rare occasions, avocado trees. Sycamore hosts include California sycamore, Arizona sycamore, and American sycamore trees. Coast live oak is a confirmed host, but this moth likely uses many or most other western oaks as well.
