Explanation: Ecological succession occurs due to the changes in physical environment and population of species. … Once the environmental conditions alter, the first species may fail to flourish and another species may thrive.
Xerosere originate on bare rock surfaces, where the original substratum is deficient of water and lacks any organic matter whereas Hydrosere is a succession in which a pond, and its community are converted into a land community. 2.
Hydrosere is a plant progression in which an open freshwater naturally dries out, steadily becoming a swamp, marsh, etc. and in the end woodland. Xerosere is the succession of environmental communities which originated in an enormously dry habitat such as a sand desert, sand dunes, a salt desert or a rock desert.
| Hydrarch | Xerarch |
|---|---|
| This succession takes place in wet areas | This succession takes place in dry areas |
| This takes place from hydric to mesic condition | This takes place from xeric to mesic condition |
| This starts from phytoplankton stage | This starts from bare rocks |
Xerosere is a plant succession that occurs in extremely dry conditions such as sand dunes, sand deserts, rock deserts etc. … Lithosere is a plant succession that occurs on bare rocks.
Ecological succession is the sequence of seres from barren land to climax. In ecological terms, developmental stages of a community are called seral stages and the final stage is called the climax. If succession takes place on rock, it is called Lithosere. If succession takes place on sand, it is called Psammosere.
A lithosere (a sere originating on rock) is a plant succession that begins life on a newly exposed rock surface, such as one left bare as a result of glacial retreat, tectonic uplift as in the formation of a raised beach, or volcanic eruptions.
Mesarch succession is a kind of ecological succession which begins from a habitat where adequate moisture conditions are present. Ecological succession refers to the changes occurring in the biotic communities over a period of time at a given place.