October 24 Notes
In Ontario the trees that have turned color first are the native species
The non native species have not changed in color yet. This is due to the fact that the native species have
already adapted to the climate
Trees change color due to the decrease in day length
It is colder here than it is in Eastern Asia or Europe
Day lengths are off (signals)
Introduced species do catch up eventually
White mull berry: get hammered by early frost
But fall before they turn color
Might be a disadvantage in gaining nutrients with respect to native species
At higher elevations= colder temperatures, their trees would change faster
Forest Stratification: The Synusia
Vegetation Zones of Ontario
Why do trees even exist?
What do living things need to keep living?
How do they get them?
Large morphological features of things
Water, oxygen, organic molecules, minerals, warmth, support
How do animals obtain these things?
Skeleton (invertebrates external)
All requirements come through the front
Inorganic carbon (CO2)
Plants live in two environments (aerial portion and terrestrial environment)
Trees have relationships with fungus to gain nutrients
Main limiting factor to this is sunlight
Competition= increase in health
Circadian +plants one