Biol 201 - Notes - 4.15.2009

Biol 201 - Notes - 4.15.2009 - Succession on bare rock I:...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Succession on bare rock I: Lichens first - Mutualism between fungus and alga - Lichen provides drought-resistance covering II: - Allow thing to start growing   mosses III: - Vascular plants in decayed moss and lichen Eventually get trees growing out of rock Succession : gradual change in plant and animal commuinities in an area following disturbance - Primary succession  on newly exposed geological substrates, may follow: o Lava flows o Sand dune formation o Landslides o Receding glaciers - Secondary succession  following disturbance that does not destroy soil or create new  substrate (you’re not starting from scratch) o Abandonment of agricultural land o Various kinds of wind disturbances such as hurricanes o Fires o Disturbances by animals - Climax communities  are relatively stable communities that occur after long periods of  succession - Pioneer species - Chronosequences
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 09/24/2009 for the course BIOL 201 taught by Professor Mitchell during the Spring '07 term at UNC.

Page1 / 2

Biol 201 - Notes - 4.15.2009 - Succession on bare rock I:...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online