Why does primary succession take longer than secondary?
Primary Succession can be defined as the process of growth in an area that was previously empty and barren.Secondary Succession can be defined as the growth of the community in such area which was previously occupied, inhabited and that has primary vegetation but got disturbed or damaged due to some external or internal factors.
The newly formed bare rock, desert, ponds, etc., is the example of Primary Succession, while the area is covered by natural disasters such as flood, earthquake, and so on.There are examples of secondary succession.
The development of the biological community can be defined as the gradual and natural process of ecological succession.It can take decades or millions of years for such development.The process begins with the growth of a community from bare rock.
The intermediate species includes grasses, shrubs, trees, etc.The oak and hickory types of shade- tolerant trees were developed into the climax community.
Directional temporal changes in a community can be seasonal, diurnal or long term.The process of ecological succession is divided into two parts.Along with the small description on them, we will mark out the difference between the two.
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.There was a time when there was life in the area, but it was abandoned due to floods, earthquakes, and other natural disasters.It happens in an area that has recently been deprived of life.The completion time is 1000 years or more.The absence of soil at the beginning of the process is not suitable for sustaining life.Some organisms are present in the soil.Secondary Succession can be seen in the presence of humus.There are many seral communities, but few as compared to primary succession.The Pioneer Community is present and comes from outside.The environment is unfavorable in the beginning.The environment has been favorable since the beginning.The previous community used to live in that area.
The first stage of the development of a community is called Primary Succession.The area where there is no suitable condition for sustaining life is where it starts growing.The advancement goes from the barren area to the expansion of the developed community.It takes thousands of years to build such an area.
Primary Succession is the first life form to appear in any environment.There is no previous living material present in this case.The organisms which establish themselves in the initial stage are called the primary colonizers or pioneer and the community of that species is called primary community.The examples of this succession are Lichens and algae.
The community was removed due to the natural disturbances.The land still contains essential nutrition, which is required by all forms of life.This kind of succession occurs in the forest, which has been cut recently, plowing fields, flooded lands, and the area which was destroyed due to natural calamities.
Secondary Succession occurs when the land of primary succession gets disturbed due to some biological cause or internal factors.
There are substantial points for distinguishing between the two types of ecological succession.
The sequential progression of the new species can be said to be the ecological succession.Changes at the stage of climax condition produce a stable community, which is dominated by a particular kind of species, as those who were able to cop up in that environment were the only ones left.To maintain the ecological balance, this kind of succession is necessary.
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