Volcanic ash, being highly fertile, can bring about the allogenic form of this process.
In aquatic environments in which this process occurs, floating plants eventually replace phytoplankton as part of the hydrosere. Lichens tend to be the first colonizers of exposed rocks, placing them at the start of the lithosere, which is another example of a seral community which arises in this process. Volcanic ash, being highly fertile, can bring about the allogenic form of this process. In this process's "primary" form, those lichens would be pioneer species. Culminating in the formation of a climax community, for 10 points, name this series of gradual changes in species composition that occur following the disturbance of a community or the colonization of a new habitat.
In aquatic environments in which this process occurs, floating plants eventually replace phytoplankton as part of the hydrosere.
ecological succession [accept primary succession; accept secondary succession; accept allogenic succession] &lt;RB/AS&gt;