1 of 6© Boardworks Ltd 2009. 2 of 6© Boardworks Ltd 2009 Succession Succession is the gradual...

Post on 17-Jan-2016

216 views 2 download

transcript

1 of 6 © Boardworks Ltd 2009

2 of 6 © Boardworks Ltd 2009

Succession

Succession is the gradual change in a community over time.

Primary succession occurs when organisms colonize a lifeless habitat.

During succession the organisms within an ecosystem change its abiotic conditions.

Secondary succession occurs when organisms re-colonize

a devastated ecosystem.

This allows better adapted organisms to colonize the area, replacing its current inhabitants.

3 of 6 © Boardworks Ltd 2009

Sand dune succession

4 of 6 © Boardworks Ltd 2009

Species adaptations during succession

5 of 6 © Boardworks Ltd 2009

Succession on a rocky surface

6 of 6 © Boardworks Ltd 2009

From pioneer to climax community