Name_____________________________________Date________ Period_______ Seat Number_____
Primary-vs-Secondary Succession
Primary Succession:
https://www.youtube.com/watch?v=TLpc71YOtcE
Ecosystems are shaped by _biotic__________ and abiotic_________
factors in the ecosystem_____.
Examples of biotic factors are 1. ___Plants___________, 2. ____animals
___________ and 3._____fungi_______________.
Examples of abiotic factors are 1. sunlight_________, 2.
________rainfall________, 3. __nutrients____________.
The stages of primary succession are
Stage ___1____: Pioneers are the earliest stage of succession
characterized by rocks and
lichen growth, which begins the soil
formation process.
Stage
2: Early Colonizers contain more lichen
which is helping
to establish more soil formation
and the first plants are becoming
established. These are early colonizers. They fast growing
and
need
light
and are
wind dispersed.
Stage 3 is the Opportunistic stage: characterized by a lot of
growing, thicker and taller trees ___________ are growing.
moss
Stage ___4__: is characterized by __mature__________ forest: which are
not wind dispersed, slower growing, tolerate shade and need a lot more
_______nutrients over time to grow.
Secondary Succession:
https://www.youtube.com/watch?v=9kkWxUgMHfA
Entire ___forest_________ are wiped out by natural disturbances___
like tornadoes,
fires, or other natural disasters. The
forest
would grow back
over time. First
to
appear would be low
growing
grasses, then bushes, followed by small
trees.
There are two kinds of succession. _______
_ and
_
____. The predictable changes which occur in a community is called
succession.
Name_____________________________________Date________ Period_______ Seat Number_____
The 1st is primary succession: change in an area where no
existed ___ .
Over time Pioneer
like mosses
and
create soil.
soil____
species would populate the area. Organisms
lichens
would breakup rock and help
Next seed dispersal would bring seed to the new soil and
would start to grow.
Once bare rock will become
mature
small plants
adult forest.
Secondary succession occurs when a developed ecosystem gets disturbed
by natural disaster. Examples: Fires and tornadoes
Human
activity like farming
landscapes.
and
logging can also change
Secondary
succession creates a
mature forest
faster
than primary succession
because there was
soil already
present.
Which Panels are primary or secondary succession? 1. Mature forest,
2.and 3. Forest fire, 4-8.Secondary Succession