During secondary succession, the best describes why decomposing pioneer plants give way to larger, more complex plant species, such as hardwood trees - Increased amounts of soil from decomposing pioneer species allow plants with more extensive root systems to become established.
Secondary succession is a type of ecological succession in which organisms recolonize a habitat after a major disturbance such as a flood, wildfire, lava flow, or human activity.
Primary succession does not have usable soils, whereas secondary succession occurs after a disturbance that leaves soil intact.
Decomposing pioneer species increases the soil amount that allows plants with more extensive root systems to become established.
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