Identify the climax community of hydrarch and xerarch succession?
class 12th CBSE Bioogy sample paper
Answers
The climax community of Hydrach and Xerach Succession is Forest.
In ecology, climax community, or climatic climax community, is a historic term for a biological community of plants, animals, and fungi which, through the process of ecological succession in the development of vegetation in an area over time, have reached a steady state.
Hydrarch succession: Plant succession starting on relatively shallow water, such as ponds and lakes, and culminating in a mature forest.
Four stages of hydrarch succession:
1. Submersed aquatic plants in the deeper water.
2. Emergent cattails and bulrushes rooted in the mud of shallow water.
3. Willow thickets along the banks of distant shoreline.
4. Conifer forest in drier, well drained soil above the willow thickets.
Xerarch succession of ecological communities originated in extremely dry situation such as sand deserts, sand dunes, salt deserts, rock deserts etc. A xerosere may include lithoseres (on rock) and psammoseres (on sand)