Biology a level question - Ecology

what is the difference between a subclimax and a plagioclimax community?

Deflected succession - caused by human interaction - leads to a plagioclimax community. The community stopped developing due to human interaction, it is at a stable state. Such as mowing grass, so the patch of land remains as grass.
A subclimax community is before the climax community - final stage in succession.

Just as an extra:
You have primary succession and secondary succession
Primary - succession starts on new area/ exposed area of environment (such as on land)
secondary - a disturbance (flood, fire) kills a community, but soil and nutrients remain, than succession begins again (but is faster than primary).

Reply 2

Kallisto

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Original post by Lebkuchen

what is the difference between a subclimax and a plagioclimax community?

Subclimax community: the area or habitat couldn't be stopped from reaching the climatic climax, that is to say the negative consequences of an ecosystem in a development came true.

Plagioclimax community: area or habitat in which the ecosystem could be prevented from the bad developments in order to get worse.

In short: the two different communities stands for the different magnitude of ecological change caused by human activity. Here are just a few:

- cutting down the vegetation, as in the trees in a forest.
- forest clearance by burning.
- tree or crop planting.
- grazing caused by the domesticated animals.
- harvesting of planted crops

(edited 6 months ago)