Forest Ecosystem
Interactions
Trees
Nutrient Cycle/Levels
100
When living and non living things interact and affect each other.
What is an ecosystem?
100
What abiotic factors do trees affect?
temperature, moisture, wind and soil
100
What makes a tree a tree?
-self supporting stem -wood stem over 3m high -perenial (grows more than 3 years)
100
What is the first step in the nutrient cycle?
Roots absorb nutrients from soil.
200
The scientific names for living and non living things.
What are biotic and abiotic?
200
Explain how trees affect 2 abiotic factors
temp - cools off soil - slows erosion wind - slows wind moisture - absorbs through roots
200
Name 3 Alberta trees
-Tamrack larch -lodgepole pine -white spruce
200
Explain the nutrient cycle after the roots have absorbed the nutrients.
-up trunk, into leaves, eaten by consumers, waste and die = decomposers, back to soil
300
Give 3 examples of different ecosystems
forests, oceans, deserts
300
Do biotic factors have a positive or negative effect on trees.
Both
300
What criteria do you need to make an identification?
-coniferous or deciduous -leaves -bark -shape -cones, flowers,
300
What are the 4 levels of a forest ecosystem?
-canopy -understory/middle -underbrush/shrub forest floor
400
What are the 4 elements of a forest ecosystem?
producers, consumers, decomposers and abiotic elements
400
Name 3 biotic factors that have a negative impact on trees.
caterpillars - eat leaves deer - eat leaves and bark blight - kills leaves then whole plant/tree
400
Name the two types of trees
coniferous and deciduous
400
What do all food chains begin and end with?
begin - producer end - decomposer
500
Name 6 reasons why a forest ecosystem is important.
Oxygen, habitats, raw materials for paper and buildings, supply for food chain, slows erosion
500
Name 3 biotic factors that have a positive effect on trees.
decomposer - returns nutrients back to soil birds - spreads leaves bees - pollinate
500
How are coniferous and deciduous trees the same?
- wood stem, branches, perennial, roots, consume CO2, give off oxygen
500
Give an example of a 5 link food chain
grass - rabbit - fox - wolf - earthworm
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