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Jack mackerel caught by a Chilean purse seiner Fishing down the food web. Overfishing is the removal of a species of fish (i.e. fishing) from a body of water at a rate greater than that the species can replenish its population naturally (i.e. the overexploitation of the fishery's existing fish stock), resulting in the species becoming increasingly underpopulated in that area.
U.S. Wildflowers Reference List: Arizona — Reference List of websites for Arizona Wildflower Identification. Pima Community College. Common Wildflowers of Tucson. Floras - Arizona Native Plant Society; USDA Plants Database — plant profiles search engine, by common or botanical names, or by U.S. state.
Plants must survive its hot and dry conditions. [2]: 7 Temperatures can be greater than 120 °F (49 °C). [2]: 7 Annual precipitation is sometimes less than 3 inches (7.6 cm). [2]: 7 Density of vegetation gradually diminishes moving from the Arizona Upland into the Colorado Desert proper. [2]: 7
The Sonoran Desert. The Sonoran Desert is a North American desert and ecoregion which covers large parts of the southwestern United States and of northwestern Mexico. With an area of 260,000 square kilometers (100,000 sq mi), it is the hottest desert in Mexico. The western portion of the Mexico–United States border passes through the Sonoran ...
Flora of the Arizona Upland includes higher elevation Sonora Desert plants that require more moisture and cooler climates than those of the adjacent Sonoran Desert areas in the Colorado Desert of the lower Colorado River valley area, and which can withstand frost, unlike plants of the Sonoran Desert south of the border between the United States and Mexico.
This category contains the native flora of Arizona as defined by the World Geographical Scheme for Recording Plant Distributions. Taxa of the lowest rank are always included; taxa of higher ranks (e.g. genus) are only included if monotypic or endemic. Include taxa here that are endemic or have restricted distributions (e.g. only a few countries).
Human remains found in 1976 by hikers in a shallow desert grave near Lake Mohave, just a few miles from the Arizona-Nevada border, have finally been identified. Police identify human remains found ...
The arboretum's desert legume collection is the first primarily seed-based collection accredited by Plant Collections Network.The internationally recognized seed bank of 1,413 species are housed at the University of Arizona in Tucson, [5] while 121 species are grown in field plantings and the Taylor Family Desert Legume Garden at the arboretum.