Question

What is the difference between Hydrarch succession and Xerarch succession ?

Answer 1

1. Hydrarch succession is a form of plant succession that starts in a shallow water and eventually culminates in a forest.
2. Xerarch succession is a form of plant succession, which starts from a very dry place and eventually culminates in the mature forest.

Hydrarch succession	Xerarch succession
1.This succession begins in the water first and then results into a forest.	1.This succession begins in a dry area and then results into a forest.
2.This progresses from hydric to mesic condition.	2.This progresses from xeric to mesic condition..
3.It begins from the phytoplankton stage.	3.It begins from bare rocks.
4.Usually they start growing on shallow ponds, lakes and other water bodies.	4.It usually start growing on rock deserts and sand dunes.
Examples : Caltha, Gallium, Mentha, etc.	Examples : Lithosere, Psammosere