pioneer species

Asked October 31, 2018, 4:56 PM EDT

hi, i am always reading nature magazines and online articles. recently i came across "pioneer species" of plants. i know there are also trees that fall into this category, but that can wait.
do these plants complement each other or compete? that is, has anybody tilled an acre then seeded only pioneer plants albeit a variety? what happens when they mature? would this patch be able to expand into the grassland or forest surrounding it? or would it just disperse itself into them?
if there was a newly erupted island and it was seeded with them, what sort of ecology would it create? do you have any photos of one of these heath and raspberry landscapes?
also, do dandelions fall into this category? they seem to be able to sprout in the smallest concrete crack. thanks, BA

Klamath County Oregon

This Question is Waiting for an eXtension Answer

What's an eXtension Answer? Your questions are answered by Cooperative Extension and University staff and volunteers from across the United States. That means the answer given here will be objective, research-based and credible.