Inspiring Learning Geography KS3
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What are lichens? Can you name some of the species of trees in the park? What do
lichens tell us about air pollution?
Trees
You need to survey four trees in two different sites, one next to the road and one away from the road.
When you have found your transect of four trees measure the girth of each and record it in the table along
with the species of your trees.
Site 1:
Tree
Species
Girth (cm)
1
2
3
4
Recording indicator lichens on the tree trunk
Tree 1
Amount of each indicator lichen on the trunk of each tree (0,1,2 or 3)
Tree 2
Tree 3
Tree 4
Nitrogen-sensitive
1. Usnea
2. Evernia
3. Hypogymnia
Intermediate
4. Melanelxia
5. Flavoparmelia
6. Parmelia
Nitrogen-loving
7. Leafy
Xanthoria
8. Cushion
Xanthoria
9. Physcia
How many other
types of lichen?
Types of algae
□ Green
□ Orange
□ None
□ Green
□ Orange
□ None
□ Green
□ Orange
□ None
□ Green
□ Orange
□ None
Inspiring Learning Geography KS3
Site 2:
Tree
Species
Girth (cm)
1
2
3
4
Recording indicator lichens on the tree trunk
Amount of each indicator lichen on the trunk of each tree (just tick if it is present)
Tree 1
Tree 2
Tree 3
Tree 4
Nitrogen-sensitive
1. Usnea
2. Evernia
3. Hypogymnia
Intermediate
4. Melanelxia
5. Flavoparmelia
6. Parmelia
Nitrogen-loving
7. Leafy
Xanthoria
8. Cushion
Xanthoria
9. Physcia
How many other
types of lichen?
Types of algae
□ Green
□ Orange
□ None
□ Green
□ Orange
□ None
□ Green
□ Orange
□ None
□ Green
□ Orange
□ None