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Notetaking: How are ecosystems
organized? (15 minutes)
In your notebook, write down each of the terms and definitions in RED
*We are going to move SMALL scale to BIG scale
Set up your notebook by writing:
Date: August 31st, 2016
Topic: Ecosystem Organization, Biodiversity and
Succession
Learning Target: Predict how environmental change
or biodiversity loss will affect an ecosystem
Bell Ringer
• Pick up materials for today (your notebook)
• Place your homework (from the Scientific Method lesson)in the
top left corner of your desk where it can be checked.
• Answer the following questions in your notebook:
1. How would it affect the environment if the plants
and trees burned down?
2. What happens if a new species is introduced into
an ecosystem where it has never lived before?
What are we learning today?
Benchmarks:
• SC.912.L.17.8 Recognize the consequences of the losses of biodiversity
due to catastrophic events, climate changes, human activity, and the
introduction of invasive, nonnative species.
• SC.912.L.17.4 Describe changes in ecosystems resulting from seasonal
variations, climate change, and succession.
Objectives: Understand the value of biodiversity, and characterize
threats to global biodiversity.
• Understand the levels of organization in an environment
• Analyze texts describing the effects of forest fire and deforestation on
an ecosystem, and write a CER comparing the two.
Agenda
• Bellringer (5 minutes)
• Announcements and Ecology introduction (3
minutes)
• Power Notes (15 minutes)
• Biodiversity activity (10 minutes)
• Our first CER! (20 minutes)
• Biology Pre-test (30 minutes)
Our goals today
• to investigate how ecosystems are organized,
• what factors make an ecosystem healthy and productive
• what happens if a environmental change alters the conditions for
an ecosystem.
• Here’s dramatic example of environmental change…while you
watch I want you to think about how the surrounding land and
things that live there would be affected.
Organism
An individual living thing
Population
Members of one species inhabiting the same area
Community
Two or more populations of different species living
and interacting in the same area
Ecosystem
The living and nonliving parts of an environment
Biosphere
All of the ecosystems on the planet
Biodiversity
What is it?
• The variety/diversity of living things in the world or in a
particular ecosystem
Why is it important?
• Provides a range of natural resources
• Increases productivity and resiliency of an ecosystem
Threats to Biodiversity
*write after your definition of biodiversity
•Habitat loss
•Invasive species
•Population growth
•Pollution
•Overuse/Overconsumption
What are Invasive Species?
•Species that are introduced to or invade an
ecosystem, usually causing economic and/or
environmental harm
• often introduced by humans
• Why are Invasive species a problem?
• Disrupt food webs
• They have few predators
• Reproduce and spread quickly
• Outcompete natives for food and/or habitat (space)
Succession Timeline
In your notes…
Primary Succession
• Starts with LITTLE or NO
soil
Secondary Succession
• Starts with soil present
Biodiversity Activity
Our class is a tropical hardwood forest, a common habitat type in Southern Florida.
You are all trees in the forest; you all play important roles in the ecosystem, like
providing food, shelter, and keeping the air and water clean for the organisms that
live in the forest.
The card that you have been given tells you which tree species you are each round.
Listen up for your tree name to be called as I call out certain scenarios that
happened in this forest.
We will go through 3 rounds
Look at your card to see which tree you are each round. If I call out your tree name
for that round, sit down in your seat. At the end of each round, everyone will stand
back up and we will restart
*there will be no moving about the room during this activity*
Round 1:
A fungus, called the Laurel Wilt,
is spreading through the
Everglades and southern Florida.
This tree disease causes a
reaction in Swamp Bay trees,
leaving them brown and dead.
* How is our forest ecosystem
doing??
Round 2
A fungus, called the Laurel Wilt, is
spreading through the Everglades
and southern Florida. This tree
disease is causes a reaction in
Swamp Bay trees, leaving them
brown and dead.
A logging company came through
the Tropical Hardwood forest in
this area and cut all of the
* How is our forest ecosystem
Live Oak Trees down
doing??
Round 3
A fungus, called the Laurel Wilt,
is spreading through the
Everglades and southern Florida.
This tree disease is causes a
reaction in Swamp Bay trees,
leaving them brown and dead.
A logging company came
through the Tropical Hardwood
forest in this area and cut all of
the Live Oak Trees down
* How is our forest ecosystem
doing??
Our first CER!
• You are going to read 2 articles, one about deforestation and one about
forest fires. Each article has 2 questions at the top that will help you
figure out what information to look for in the article. Any time you
come across information that answers the 2 questions,
highlight/underline it.
• When you are finished reading the 2 articles and
highlighting/underlining, you will complete the CER question on the
third page. Let’s read the first two paragraphs of the deforestation as a
class to get you started, then you will be working on your own.
• You will have 15 minutes after we read together; this is your Exit Quiz
for the day (you may complete it for Homework if you need more time)
• There will be NO TALKING during the independent work time
Biology Pretest
• WHY…. An important check-in for yourself, your teacher and the
school district
• WHAT… 30 minutes, multiple choice.
• ONLY WRITE ON THE BUBBLE SHEET; be sure that you circled the
bubble with your name on it at the top
• There will be no talking
• Do your best but don’t stress...
You got this!