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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
Autogenic succession can be viewed as a secondary succession because of pre-existing plant life. [6] A 2000 case study in the journal Oecologia tested the hypothesis that areas with high plant diversity could suppress weed growth more effectively than those with lower plant diversity.
Ecological succession is the process of change in the species that make up an ecological community over time. The process of succession occurs either after the initial colonization of a newly created habitat, or after a disturbance substantially alters a pre-existing habitat. [1]
Connell and Slatyer chose to focus on autogenic succession, which occurs on newly exposed landforms and is initiated by changes from within the community rather than a geophysical transformation. [2] They targeted plant and immobile aquatic organisms that demanded the greatest surface area within an environment and could modify the physical ...
Autologous stem-cell transplantation is distinguished from allogenic stem cell transplantation where the donor and the recipient of the stem cells are different people. [2] It can be also used as an Assisted reproductive technology to improve the reproductive outcomes. In a first step the bone marrow derived stem cells are mobilized.
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
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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 .