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Secondary succession is the secondary ecological succession of a plant's life. As opposed to the first, primary succession, secondary succession is a process started by an event (e.g. forest fire, harvesting, hurricane, etc.) that reduces an already established ecosystem (e.g. a forest or a wheat field) to a smaller population of species, and as such secondary succession occurs on preexisting ...
Particularly common types of secondary succession include responses to natural disturbances such as fire, flood, and severe winds, and to human-caused disturbances such as logging and agriculture. In secondary succession, the soils and organisms need to be left unharmed so there is a way for the new material to rebuild. [9]
Secondary succession is much more common than primary succession in the tropics. Ecological secondary succession occurs in four distinct phases: First, rapid colonization of cleared land by species such as herbs, shrubs, and climbers as well as seedlings from pioneer tree species occurs and this can last up to three years.
Seral communities in secondary succession can be seen in a recently logged coniferous forest. During the first two years, grasses, heaths and herbaceous plants such as fireweed will be abundant. After a few more years shrubs will start to appear; and about six to eight years after clearing, the area is likely to be crowded with young birches ...
Primary succession, when there is a new substrate with no existing vegetation, as after a volcanic lava flow; Secondary succession, when the substrate has sustained vegetation, as after a fire or flood; Succession (geology), in geology, a group of rocks or strata that succeed one another in chronological order
Peacock's new documentary series, 'SNL50: Beyond Saturday Night' is now streaming. Here's a list of the show's cast members and featured celebrities.
You can develop viral pneumonia, Liu says, or a secondary bacterial pneumonia. Rarely, influenza can spread to other organs, including the brain where it causes a life-threatening condition called ...
Pioneer species play an important role in creating soil in primary succession, and stabilizing soil and nutrients in secondary succession. [2] For humans, because pioneer species quickly occupy disrupted spaces they are sometimes treated as weeds or nuisance wildlife, such as the common dandelion or stinging nettle.