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The California Floristic Province is a world biodiversity hotspot as defined by Conservation International, due to an unusually high concentration of endemic plants: approximately 8,000 plant species in the geographic region, and over 3,400 taxa limited to the CFP proper, as well as having lost over 70% of its primary vegetation. A biodiversity ...
The climate of California varies widely from hot desert to alpine tundra, depending on latitude, elevation, and proximity to the Pacific Coast. California 's coastal regions, the Sierra Nevada foothills, and much of the Central Valley have a Mediterranean climate , with warmer, drier weather in summer and cooler, wetter weather in winter.
California is known to be free of Bactrocera tau (Walker). [302] California red scale (Aonidiella aurantii) is an invasive pest here. [303] It competitively displaced a prior invader Yellow scale . [303] Debach et al., 1978 finds that A. citrina is now extinct in this state due to the invasion of A. aurantii. [303]
The Central Valley is a region known for its agricultural productivity. It provides a large share of the food produced in California, which provides more than half of the fruits, vegetables, and nuts grown in the United States. [3] More than 7,000,000 acres (28,000 km 2) of the valley are irrigated via reservoirs and canals. [4]
Lady Bird Johnson Wildflower Center - Recommended Species — provides a national searchable supplier directory for landscaping, environmental consultants, seed sources and nurseries; recommended plant lists that can be filtered to include plants native to California; and plant recommendations for specific regions of California.
Several regions in the Sacramento Valley, including Red Bluff, Redding and Modesto, hit their hottest July on record this year, according to the National Weather Service. Times staff writer Hayley ...
The region is typified by warm dry summers and mild wet winters. This is unusual as most climates have more precipitation in the summer. There are three variations to the Mediterranean climate in California, a cool summer/cool winter variation, a cool summer/cool winter with summer fog variation, and a hot summer/cool winter variation.
The ecology of California can be understood by dividing the state into a number of ecoregions, which contain distinct ecological communities of plants and animals in a contiguous region. The ecoregions of California can be grouped into four major groups: desert ecoregions (such as the Mojave Desert), Mediterranean ecoregions (such as the ...