Ecological Succession

1
Ecological Succession

• Terrestrial

2
Terrestrial Phases

• Primary Succession
• Rock
• Lichens
• Weeds and Grasses
• Shrubs

3
Barron Rock

• rock -gt lichen -gt moss -gt grass -gt shrub -gt trees
  -gt oak hickory forest

4
Lichens on Rocks

• rock -gt lichen -gt moss -gt grass -gt shrub -gt trees
  -gt oak hickory forest

5
Collection of debris in rock crevice allows for
dust particles to collect to aid in soil
formation.
6
Lichens and Moss on Rocks

• rock -gt lichen -gt moss -gt grass -gt shrub -gt trees
  -gt oak hickory forest

7
After soil forms pioneer plants invade the land.
They are small mosses and weed type plants. Then
the progression of plants and animals is like
secondary succession.
8
Pioneer Plants in Soil

• rock -gt lichen -gt moss -gt grass -gt shrub -gt trees
  -gt oak hickory forest

9
Terrestrial Phases

• Secondary Succession
• Soil
• Weeds and grasses
• Shrubs (herbaceous plants)
• Soft wood trees, pines
• Hardwood trees, oak and hickory

10
Weeds and Grasses
11
Shrubs

• Herbaceous shrubs and plants begin to take over
  the grass area.

• rock -gt lichen -gt moss -gt grass -gt shrub -gt trees
  -gt oak hickory forest

12
Soft Woods

• Trees such as pines and poplars will begin to
  grow. They require much sun light for their
  germination.

13
Hardwood Trees

• Hardwood trees begin to take the place of the
  pines and other softwood trees. This is then
  called a climax community.

• rock -gt lichen -gt moss -gt grass -gt shrub -gt trees
  -gt oak hickory forest

14

• rock -gt lichen -gt moss -gt grass -gt shrub -gt trees
  -gt oak hickory forest