Transcript Primary succession

#1.6 Aim:
How do
ecosyste
ms
change
over
time?
Agenda
QOD (10)
Lesson:
succession
(15)
Activity:
courtyard
scavenger
hunt (15)
Summary
Share (5)
HW #5
Succession
QOD (5 min): Look at these photos of Baltic St. What do
you think would happen in if no one ever took care of the
sidewalks? What would it look like in 10 years? In
100 years?
#1.6 Aim:
How do
ecosyste
ms
change
over
time?
Announcement:
Agenda
QOD (10)
Lesson:
succession
(15)
Activity:
courtyard
scavenger
hunt (15)
Summary
Share (5)
HW #5
QUIZ #1
on FRIDAY
#1.6 Aim:
How do
ecosyste
ms
change
over
time?
Agenda
QOD (10)
Lesson:
succession
(15)
Activity:
courtyard
scavenger
hunt (15)
Summary
Share (5)
HW #5
HW #4 questions?
1. A flea jumps on a dog and sucks its blood for food.
________
2. A mycorrhizae fungi connects trees underground. The fungi
leeches sugars from the tree roots, but also helps the tree
roots absorb more nutrients from the soil.
____________________
3. A lonely woman takes care of a cat she found on the street
and feeds it. The cat keeps the woman company and makes
her happier. _____________________
4. The two-toned caterpillar parasite Wasp lays its eggs on live
caterpillars so that when the eggs hatch, the young wasps
have ready nutrition. When the Wasps grow to adulthood,
they eat their way out of the killed caterpillar.
_____________________
#1.6 Aim:
How do
ecosyste
ms
change
over
time?
Agenda
QOD (10)
Lesson:
succession
(15)
Activity:
courtyard
scavenger
hunt (15)
Summary
Share (5)
HW #5
HW #4 questions?
5. Ants protect certain aphids and bring them to their food
source at appropriate times in their life cycles. The aphids
secrete a sweet substance called “honeydew” that the ants
collect and eat. _______________________
6. Think of your own example of a commensalism, parasitism,
or mutualism. Describe it below.
#1.6 Aim:
How do
ecosyste
ms
change
over
time?
Agenda
QOD (10)
#1.6 Aim:
How do ecosystems
change over time?
Lesson:
succession
(15)
Activity:
courtyard
scavenger
hunt (15)
Summary
Share (5)
HW #5
Turn your
BLUE CARDS
in to
Ms. B - L
#1.6 Aim:
How do
ecosyste
ms
change
over
time?
How do you get from THIS…
Agenda
QOD (10)
Lesson:
succession
(15)
Activity:
courtyard
scavenger
hunt (15)
Summary
Share (5)
HW #5
#1.6 Aim:
How do
ecosyste
ms
change
over
time?
…to THIS?
Agenda
QOD (10)
Lesson:
succession
(15)
Activity:
courtyard
scavenger
hunt (15)
Summary
Share (5)
HW #5
#1.6 Aim:
How do
ecosyste
ms
change
over
time?
Succession – ecological communities progress
over time.
Agenda
QOD (10)
Lesson:
succession
(15)
Ecological communities progress over time.
Activity:
courtyard
scavenger
hunt (15)
Summary
Share (5)
HW #5
Why do you think the smaller plants appear first? (What do they do for
the larger plants?)
#1.6 Aim:
How do
ecosyste
ms
change
over
time?
Agenda
QOD (10)
Lesson:
succession
(15)
Activity:
courtyard
scavenger
hunt (15)
Pioneer species – the first
species
Summary to populate an area. These
Share (5) start making the soil
species
HW #5
Climax community – a
mature, stable community - what
the community would be like if
no disturbances ever occurred.
 Lichens and mosses are an
important pioneer species 
#1.6 Aim:
How do
ecosyste
ms
change
over
time?
Disturbances
Disturbances interrupt regular processes of
the ecosystem.
Agenda
QOD (10)
Lesson:
succession
(15)
Activity:
courtyard
scavenger
hunt (15)
Summary
Share (5)
HW #5
volcanic eruption – lava flow Humans clear-cut a forest
Depending on the type of disturbance, there can be 2 types of succession…
#1.6 Aim:
How do
ecosyste
ms
change
over
time?
2 types of succession:
Primary succession - Disturbance covered the entire
community (Ex: glacier melted  exposed bare rock)
Agenda
QOD (10)
Lesson:
succession
(15)
Activity:
courtyard
scavenger
hunt (15)
Secondary succession Disturbance did not remove
the soil (Ex: land cleared for
farming)
Summary
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HW #5
Starting from bare rock…
At least it’s got some
soil to work with! 
#1.6 Aim:
How do
ecosyste
ms
change
over
time?
Which kind of succession
is it?
(primary or secondary?)
Agenda
QOD (10)
Lesson:
succession
(15)
Activity:
courtyard
scavenger
hunt (15)
Summary
Share (5)
HW #5
wildfire
#1.6 Aim:
How do
ecosyste
(primary
ms
change
over
time?
Which kind of succession is it?
or secondary?)
Agenda
QOD (10)
Lesson:
succession
(15)
Activity:
courtyard
scavenger
hunt (15)
Summary
Share (5)
HW #5
1st: Decomposers
feast on the
decaying meat
And what are the
pioneer
species? What is
the climax
community?
A gray whale dies, and
sinks to the otherwise
barren ocean floor…
#1.6 Aim:
How do
2nd: After a year, most of the whale tissue is eaten.
ecosyste
ms
supports
small fishes and other marine animals
change
over
time?
The carcass still
Agenda
QOD (10)
Lesson:
succession
(15)
Activity:
courtyard
scavenger
hunt (15)
Summary
Share (5)
HW #5
As the whale’s body decays, it enriches its surroundings with its
nutrients. This makes an oasis that attracts sediment dwellers of
marine worms.
#1.6rd Aim:
3 : When only the skeleton remains, heterotrophic bacteria begin to
How do
decompose the oils inside the whale bones, and support a diverse
ecosyste
ms
community
of mussels, worms, crabs, and clams.
change
over
time?
Agenda
QOD (10)
Lesson:
succession
(15)
Activity:
courtyard
scavenger
hunt (15)
Summary
Share (5)
HW #5
#1.6 Aim:
How do
ecosyste
(primary
ms
change
over
time?
Which kind of succession was that?
Agenda
QOD (10)
or secondary?)
What were the
Primary – starting from
Lesson:
a barren ocean floor…
succession
pioneer
species? What
was the climax
community?
(15)
Activity:
courtyard
scavenger
hunt (15)
Pioneer species - decomposers
Summary
Share (5)
HW #5
Climax community: the bacteria
decomposing the oils in the whale
bones that support all the other
species…
#1.6 Aim:
How do
ecosyste
ms
change
over
time?
Agenda
QOD (10)
Lesson:
succession
(15)
Activity:
courtyard
scavenger
hunt (15)
Summary
Share (5)
HW #5
Expectations
for courtyard expedition
• We will walk quietly to and from the courtyard
•
We will not communicate with students or
teachers in other classes
• We will be decorous, upright, outstanding
citizens (not act crazy or run around or throw
things, etc.)
We have our first field trip planned for next
Wednesday, so let’s make our first mini-field trip a
positive learning experience that we will want to
repeat!
#1.6 Aim:
How do
ecosyste
ms
change
over
time?
Agenda
QOD (10)
Lesson:
succession
(15)
Activity:
courtyard
scavenger
hunt (15)
Summary
Share (5)
Courtyard
scavenger hunt!
You will work in partners to find each
item on your list. For each thing
you find, write down
a) what it is
b) where you found it
c) draw a sketch
HW #5
Good luck!
#1.6 Aim:
How do
ecosyste
ms
change
over
time?
Agenda
QOD (10)
Lesson:
succession
(15)
Activity:
courtyard
scavenger
hunt (15)
Summary
Share (5)
HW #5
Summary
What did you find?
•
•
•
•
A pioneer species?
an area that has undergone
primary succession?
an area that has undergone
secondary succession?
is there any evidence of a climax
community?