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In ecology, allogenic succession is succession driven by the abiotic components of an ecosystem. [1] In contrast, autogenic succession is driven by the biotic components of the ecosystem. [1] An allogenic succession can be initiated in a number of ways which can include: Volcanic eruptions; Meteor or comet strike; Flooding; Drought; Earthquakes
For example, when larger species like trees mature, they produce shade on to the developing forest floor that tends to exclude light-requiring species. Shade-tolerant species will invade the area. Allogenic succession is caused by external environmental influences and not by the vegetation. For example, soil changes due to erosion, leaching or ...
For example, we can examine succession in the Loess Plateau in China. In the graph on page 995 of the paper "Plant Traits and Soil Chemical Variables During a Secondary Vegetation Succession in Abandoned Fields on the Loess Plateau" by Wang (2002), we can see the initial dominance of the Artemisia scoparia, the pioneer species.
Autogenic or Allogenic Rationale Example 1 Autogenic Not considered ecosystem engineering Any species that are not considered ecosystem engineers. 2 Allogenic Transform resources into usable and/or more beneficial forms Cows, after eating grass, produce cow pats with their dung and are used by other invertebrates as a food source and a shelter. 3
Hydrosere is the primary succession sequence which develops in aquatic environments such as lakes and ponds. It results in conversion of water body and its community into a land community. The early changes are allogenic as inorganic particles such as sand and clay are washed from catchment areas and begin filling the basin of the water body ...
The billionaire New York City real estate developer and hotel magnate had amassed a fortune estimated to be somewhere between $5 billion and $8 billion, according to The New York Times.
The change in leadership comes amid much speculation that Rupert’s three children from his second wife - Elisabeth, 55, Lachlan, 52, and James, 50 - each vied for the opportunity to control the ...
Ecological succession, a fundamental concept in ecology, refers to more-or-less predictable and orderly changes in the composition or structure of an ecological community Wikimedia Commons has media related to Ecological succession .