In this example, the system takes the form of a community in a grassland ecosystem. The disturbance, in this case, would be when a fire damaged the community.
The new species that would take the place of the old species would be the shrub that is resistant to fire. This is an example of secondary succession because the community that came before this one did not have the shrub.
Secondary succession is the process in which ecosystems develop on land that has already supported life. It is the process that occurs after primary succession. The last organism to occupy an area of land is called the climax community.
A new ecosystem begins when the climax community is destroyed, either by natural or human-induced events. The plant life that immediately follows is known as the early seral community. The next plant life phase is the late seral community. If the new ecosystem is stable, it eventually becomes mature. Ecological succession is defined as a process by which a community progressively changes over time from one community structure to another as a result of the interactions between the different species in the community.
In other words, ecological succession can be defined as a change in an ecosystem over time. Ecological succession is an important concept to consider when studying ecology. By knowing the difference between the type of succession going on in an area, we can consider how to manage the population of species and how to have sustainable development such that the climax communities live in harmony. Thus, if you are not sure content located on or linked-to by the Website infringes your copyright, you should consider first contacting an attorney.
Hanley Rd, Suite St. Louis, MO Subject optional. Email address: Your name:. Possible Answers: None of these. Correct answer: An environment lacking plant and animal life.
Explanation : Primary succession is the colonizing of a new environment that lacks organisms and plant life. Report an Error. Which of the following best describes when secondary succession occurs? Possible Answers: A previously inhabited environment. Correct answer: A previously inhabited environment.
Explanation : Secondary succession can be described as the colonization of a habitat that once supported plant and animal life but was abandoned due to ecological disturbance. Possible Answers: Secondary succession.
Pioneering succession. Primary succession. Correct answer: Secondary succession. Explanation : Primary succession occurs in an environment without previous life, or a barren habitat. Possible Answers: Lichen. Oak trees. Pine trees. Correct answer: Lichen. Possible Answers: In an environment recently burned by a wildfire. Correct answer: On a newly created volcanic island. Possible Answers: During the summer. Correct answer: Near early stages of succession.
Explanation : Pioneer species are the first species to colonize an environment, and thus would be found in the early stages of succession.
Possible Answers: Lava flow. Correct answer: Lava flow. Possible Answers: keystone species. Correct answer: pioneer species. Basis for Comparison Primary Succession Secondary Succession Meaning It is the kind of ecological succession, which occurs or start from the barren, uninhabited and unoccupied areas, such as the newly formed pond, rock, dunes, etc.
Such kind of succession, which occurs in the area where there was the existence of life previously but got abandoned due to natural disturbances, such as flood, tsunami, earthquake, etc. Where it occurs It occurs in a lifeless or barren area. It happens in an area, which has been recently got deprive of life and was previously inhabited.
Time taken for the completion of the process years or more. Soil There is the absence of soil at the starting of the process, and the condition is not suitable for sustaining life. The soil is present, along with some organisms. Humus The absence of humus, as there is no soil. Secondary Succession shows its existence in the presence of humus. Seral Community There are numerous intermediary seral community.
There are few intermediary seral community as compared to primary succession. Pioneer Community It is present and comes from outside. It gets develops from the migrants and previous occupants.
Favorable environment In the beginning, the environment is unfavorable. The environment is favorable, since the beginning. Reproductive structure Absent of any previous community. Present of the previous community use to live in that area. Primary Succession is the initial stage of the development of any community.
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