Question

All succession proceeds to a similar climax community the mesic. Explain

Answer 1

Hey mate here's your answer

Based on the nature of the habitat, whether it is water (or very wet areas) or it is on very dry areas – succession of plants is called hydrach or xerarch succession respectively.

Succession takes place in wetter areas and the successional series progress from hydric to the mesic conditions is called hydrach succession.

Succession takes place in dry areas and the series progress from xeric to mesic conditions is called xerarch succession.

Both hydrarch and xerach successions lead to medium water conditions (mesic) – neither too dry (xeric) nor too wet (hydric).

Xerarch succession

The species that invade a bare area are called pioneer species.

In primary succession on rocks, thepioner species is lichens are able to secrete acids to dissolve rock, helping in weathering and soil formation and the little soil leads to the growth of bryophytes.

With time, the bryophytes are succeeded by bigger plants, and after several more stages, ultimately a stable climax forest community is formed and ultimately the xerophytic habitat gets converted into a mesophytic one.

Hydrach succession

The pioneers are the small phytoplanktons which are replaced with time by free-floating angiosperms,

The free-floating angiosperms are replaced by rooted hydrophytes, sedges, grasses and finally the trees.

The climax again would be a forest and with time the water body is converted into land.

All succession whether taking place in water or on land, proceeds to mesic community.

Xerarch succession occurs in dry areas and the series progress from xeric to mesic condition. The climax community remains stable as long as environment remains unchanged. With time the xerophytic habitat gets converted into a mesophytic one.

Answer 2

Ecological Succession

Explanation:

1. The periodically changes in the different species composition of the given area,t is also known as ecological succession.  
2. Orderly and sequential change that leads to a community that is near equilibrium is called a climax community.
3. The ecological succession is mainly two types, primary succession, and secondary succession.  
4. Primary succession starts where no organism is there. For example, bare rocks cooled volcano, etc.  
5. Secondary succession occurs in the area where the living organisms have lost due to certain regions like a forest fire and  Earthquake etc.  
6. Hydrach succession takes place in wetter and the Xerarch succession takes place in dry areas .