succession at rotoiti over the years there have been many fires in the st arnaud area. black hill...
TRANSCRIPT
![Page 1: Succession at Rotoiti Over the years there have been many fires in the St Arnaud area. Black Hill has experienced partial burning a number of times. This](https://reader038.vdocuments.us/reader038/viewer/2022102808/56649cbb5503460f949837bf/html5/thumbnails/1.jpg)
Succession at Rotoiti•Over the years there have been many fires in the St Arnaud area.
•Black Hill has experienced partial burning a number of times.
•This gives us the chance to see how the forest revegetation occurs in stages
![Page 2: Succession at Rotoiti Over the years there have been many fires in the St Arnaud area. Black Hill has experienced partial burning a number of times. This](https://reader038.vdocuments.us/reader038/viewer/2022102808/56649cbb5503460f949837bf/html5/thumbnails/2.jpg)
Stage 1... Pioneer species colonise
What plant species is first on the scene?
![Page 3: Succession at Rotoiti Over the years there have been many fires in the St Arnaud area. Black Hill has experienced partial burning a number of times. This](https://reader038.vdocuments.us/reader038/viewer/2022102808/56649cbb5503460f949837bf/html5/thumbnails/3.jpg)
Stage 1... Pioneer species colonise
The environmental factors in this area :• Sunlight at ground level __________• Soil moisture __________• Temperature variation ___________• Soil humus __________• Dominant plant(s) _________________
These conditions allow _________ to grow quickly, followed by ___________ & _____________
![Page 4: Succession at Rotoiti Over the years there have been many fires in the St Arnaud area. Black Hill has experienced partial burning a number of times. This](https://reader038.vdocuments.us/reader038/viewer/2022102808/56649cbb5503460f949837bf/html5/thumbnails/4.jpg)
Stage 2... Early succession
What plant has all but gone?What plant is taking over?
![Page 5: Succession at Rotoiti Over the years there have been many fires in the St Arnaud area. Black Hill has experienced partial burning a number of times. This](https://reader038.vdocuments.us/reader038/viewer/2022102808/56649cbb5503460f949837bf/html5/thumbnails/5.jpg)
Stage 2... Early succession
The environmental factors in this area :• Sunlight at ground level __________• Soil moisture __________• Temperature variation ___________• Soil humus __________• Dominant plant(s) _________________
These conditions put an end to ________But ___________ & _____________ do wellAlso _________________________ start to appear
![Page 6: Succession at Rotoiti Over the years there have been many fires in the St Arnaud area. Black Hill has experienced partial burning a number of times. This](https://reader038.vdocuments.us/reader038/viewer/2022102808/56649cbb5503460f949837bf/html5/thumbnails/6.jpg)
Stage 3... Mid succession
What is this plant up here?
![Page 7: Succession at Rotoiti Over the years there have been many fires in the St Arnaud area. Black Hill has experienced partial burning a number of times. This](https://reader038.vdocuments.us/reader038/viewer/2022102808/56649cbb5503460f949837bf/html5/thumbnails/7.jpg)
Stage 3... Mid succession
The environmental factors in this area :• Sunlight at ground level __________• Soil moisture __________• Temperature variation ___________• Soil humus __________• Dominant plant(s) _________________
___________ & _____________ still do wellAlso _________________________ start to appear
![Page 8: Succession at Rotoiti Over the years there have been many fires in the St Arnaud area. Black Hill has experienced partial burning a number of times. This](https://reader038.vdocuments.us/reader038/viewer/2022102808/56649cbb5503460f949837bf/html5/thumbnails/8.jpg)
Stage 4... Late succession
What is stuggling here?Why?
![Page 9: Succession at Rotoiti Over the years there have been many fires in the St Arnaud area. Black Hill has experienced partial burning a number of times. This](https://reader038.vdocuments.us/reader038/viewer/2022102808/56649cbb5503460f949837bf/html5/thumbnails/9.jpg)
Stage 4... Late succession
The environmental factors in this area :• Sunlight at ground level __________• Soil moisture __________• Temperature variation ___________• Soil humus __________• Dominant plant(s) _________________
__________ gone & _____________ struggling to survive_______________________start to dominate the canopy
![Page 10: Succession at Rotoiti Over the years there have been many fires in the St Arnaud area. Black Hill has experienced partial burning a number of times. This](https://reader038.vdocuments.us/reader038/viewer/2022102808/56649cbb5503460f949837bf/html5/thumbnails/10.jpg)
Stage 5... Succession reaches the end
![Page 11: Succession at Rotoiti Over the years there have been many fires in the St Arnaud area. Black Hill has experienced partial burning a number of times. This](https://reader038.vdocuments.us/reader038/viewer/2022102808/56649cbb5503460f949837bf/html5/thumbnails/11.jpg)
Stage 5... Succession reaches the end
The environmental factors in this area :• Sunlight at ground level __________• Soil moisture __________• Temperature variation ___________• Soil humus __________• Dominant plant(s) _________________
Early stage plants all goneIts all back to the original state, ie climax community
![Page 12: Succession at Rotoiti Over the years there have been many fires in the St Arnaud area. Black Hill has experienced partial burning a number of times. This](https://reader038.vdocuments.us/reader038/viewer/2022102808/56649cbb5503460f949837bf/html5/thumbnails/12.jpg)
Summary• Grass takes off first because...
• Manuka and kanuka turn up early because...
• The manuka and kanuka lead to the disappearance of grass because...
• But the manuka and kanuka lead to the appearance of broadleaf shrubs and then beech tree saplings because...
• The beech trees then lead to the disappearance of firstly manuka and then later on kanuka because...
• Now all is well in the forest!
![Page 13: Succession at Rotoiti Over the years there have been many fires in the St Arnaud area. Black Hill has experienced partial burning a number of times. This](https://reader038.vdocuments.us/reader038/viewer/2022102808/56649cbb5503460f949837bf/html5/thumbnails/13.jpg)
Primary succession
![Page 14: Succession at Rotoiti Over the years there have been many fires in the St Arnaud area. Black Hill has experienced partial burning a number of times. This](https://reader038.vdocuments.us/reader038/viewer/2022102808/56649cbb5503460f949837bf/html5/thumbnails/14.jpg)
Primary succession
• The difference here is.....
![Page 15: Succession at Rotoiti Over the years there have been many fires in the St Arnaud area. Black Hill has experienced partial burning a number of times. This](https://reader038.vdocuments.us/reader038/viewer/2022102808/56649cbb5503460f949837bf/html5/thumbnails/15.jpg)
This beech has grown all wrong?