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The organisms once living there have either moved elsewhere, or are dead, leading to a decrease in biodiversity and species numbers. [1] [2] Habitat destruction is in fact the leading cause of biodiversity loss and species extinction worldwide. [3]
Also narrow. A land or water passage that is confined or restricted by its narrow breadth, often a strait or a water gap. nation A stable community of people formed on the basis of a common geographic territory, language, economy, ethnicity, or psychological make-up as manifested in a common culture. national mapping agency A governmental agency which manages, produces, and publishes ...
Half-Earth: Our Planet's Fight for Life is a 2016 book by the biologist E. O. Wilson, the last in a trilogy beginning with The Social Conquest of Earth (2012) and The Meaning of Human Existence (2014). Half-Earth proposes that half of the Earth's surface should be designated a human-free natural reserve to preserve biodiversity. [1]
Viruses are among the biggest threats to humanity, with the current pandemic showing how these pathogens can shut down countries, halt entire industries and cause untold human suffering as they ...
Biogeography (an amalgamation of biology and geography) is the comparative study of the geographic distribution of organisms and the corresponding evolution of their traits in space and time. [146] The Journal of Biogeography was established in 1974. [147] Biogeography and ecology share many of their disciplinary roots.
Seasonal dead zones are annually occurring, typically in warm months of summer and autumn. Diel cycling hypoxia is a specific seasonal dead zone that only becomes hypoxic during the night; The type of dead zone can, in some ways, be categorized by the time required for the water to return to full health.
Although sediments arrive primarily from the unfaulted side of the half-graben, some erosion takes place on the fault escarpment of the main border fault, and this produces characteristic alluvial fans where confined channels emerge from the escarpment. [9] Lake Baikal is an unusually large and deep example of half-graben evolution. The lake is ...
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