Q & A  What does it mean for an organism to be endangered ? Do you know of any animals who are endangered?

Slides:



Advertisements
Similar presentations
Chapter B2 Lesson 1 Ecosystems p. B28. ESSENTIAL QUESTIONS WHAT ARE THE PARTS OF AN ECOSYSTEM? HOW DOES THE ENVIRONMENT AFFECT LIVING ORGANISMS IN AN.
Advertisements

Agriculture and Nutrient Cycles Chapter 2.7. Agriculture and Nutrient Cycles The seeds, leaves, flowers and fruits of plants all contain valuable nutrients.
Matter in Ecosystems & Pesticides Science Cycling of Matter in Ecosystems Organic substances – –Contain atoms of Carbon and Hydrogen –Are broken.
Fertilizer and Ecosystems Read the first paragraph of “Fertilizer and ecosystems” on page 70 (10 minutes) Question What can happen to organisms when too.
Endangered Means There’s Still Time.
  Significance.
Pesticide, Bioaccumulation and Biomagnification
Food Chains and Food Webs
SPECIES AT-RISK Chapter 1.2 Chapter 1.3. What’s Out There? "Scientists were startled in 1980 by the discovery of a tremendous diversity of insects in.
Pests and Pesticides.
Get out your HW & In your notes…
CHAPTER 24 “ INTERACTIONS OF LIFE” (Page 684) The Biosphere -the part of the Earth which supports life. - high in the air. - underground. - under oceans.
ENDANGERED SPECIES Chapter 1.2. SPECIES AT RISK Species whose populations decline below a certain level are considered to be at risk. In Canada, more.
Carbon and Chemicals in Food Chains Page THE CARBON CYCLE Carbon is the key element of life Carbon does not decrease as it moves up a food chain,
SPECIES AT RISK – PAGE 11 In Canada, species are given one of five levels based on how much at risk they are.
Food Webs and Ecological Pyramids
Biomagnification Biology. When we try to pick out anything by itself, we find it hitched to everything else in the universe. John Muir When we try to.
Bi o m a g n i f i cati on AP Environmental Science.
The DDT Story Science 10. The DDT Story… DDT is a powerful pesticide. It was used during the second World War to control populations of insects (body.
Pesticides. What ARE They? Pesticides Pesticides are chemicals that kill unwanted organisms, usually those that attack crops. Therefore, they are intended.
Good Morning!!. Warm-up October 1 st Day 2 Create a food chain using the following organisms. What do your arrows represent?? Shrew HawkGrasshopper Homework.
Through Communities.  Used to illustrate the flow of energy at each trophic level within a community.  Measured in terms of BIOMASS: the amount of living,
Access Prior Knowledge Lesson 3: How do changes make more changes? Opening Activity Open Science textbook to page 174. Open Science Workbook to page 57A.
Endangered Species.
Unit 1: Sustaining Ecosystems & Weather In groups, consider the following questions: 1.How are living and non-living things in our world connected? 2.Why.
Biomagnification Biology.
Species at Risk Lesson 6.
Ecology Terms Review. A carnivore that feeds on the bodies of dead organisms.
Monday, December 8 th, Write A if you agree with a statement, write D if you disagree with the statement and correct the statement StatementAgree.
Energy in the Ecosystem
Biomagnification When we try to pick out anything by itself, we find it hitched to everything else in the universe. John Muir.
Bioaccumulation and Biomagnification.  Pesticide  Kills pests  Insecticide  Kills insects  Herbicide  Kills plants.
Canada’s Endangered Species. Canada’s endangered species There are more than 256 species of plants and animals at various degrees of risk and 13 species.
Biomagnification.
Chapter 9 Balance Within Ecosystems Pages
Endangered Animals in Our Midst
ANIMALS AT RISK Going, Going, Gone. Species At Risk When a species population is below a certain level is is considered to be at risk.  Ex. Harlequin.
U NIT A R EVIEW This is what WILL be on the test!.
SPECIES AT-RISK Chapter 1.2 Chapter 1.3
The Sixth Extinction? Topic Seven. -ltUIsnrQ -ltUIsnrQ Facing the Sixth Extinction.
Survival of Species By: Cammie Goodman. Survival of Species You already know that every kind of living thing has adaptations that help it survive. But.
1. All the living and non-living things interacting is an ____________________. 2. The non-living parts of an ecosystem are ________ factors. 3. The living.
Endangered Means There’s Still Time  Endangered species are like fire alarms. They tell us about problems in our home we call Earth.  If a species goes.
Back from the Brink After years of protection, a number of endangered animals are making a comeback.
Get out your HW & In your notes… Do you think that we should use pesticides? What applications do you believe pesticides are acceptable for, if any?
Envirothon Wildlife JEOPARDY Click on a point value (100 to 500) to reveal an answer YOU provide the QUESTION!! Navigate back to the Jeopardy board by.
Chapter 9 Balance Within Ecosystems
Food CHAINS Chapter 3 Lesson 1.
SNC1D Biodiversity.
Deadly Links.
POLLUTION.
ENDANGERED SPECIES Chapter 1.2.
BIODIVERSITY the variety of life on Earth!
Energy transfer Through Communities.
Endangered? Extinct? Threatened? What’s the Difference?
Energy transfer Through Communities.
SPECIES AT-RISK Chapter 1.2 Chapter 1.3.
Energy transfer Through Communities.
Pesticides Pesticides are chemicals designed to kill pests.
Life Science Food Chains.
Pesticides.
Energy transfer Through Communities.
Bioaccumulation S Describe bioaccumulation and explain its potential impact on consumers. Examples: bioaccumulations of DDT, lead, dioxins, PCBs,
Almost all energy on Earth comes from the sun.
Biodiversity.
4th Grade Milestone Review CFA #9.
Declining Populations
Unit A: Energy and Matter Exchange in the Biosphere
The Importance of Biodiversity
Energy Flow Through Ecosystems
Presentation transcript:

Q & A  What does it mean for an organism to be endangered ? Do you know of any animals who are endangered?

Endangered Species

Classifying Species at Risk  Extinct – a species that is no longer found anywhere (i.e. Blue walleye)  (extinction)

Another One Bites the Dust …  Passenger Pigeon –Let’s meet Martha –Last passenger pigeon- – Died in 1914 in Cincinnati Western Black Rhino Became extinct in 2006 due to over poaching and habitat distruction

 Endangered – A species that is close to extinction in all parts of Canada (giraffes, polar bears etc. ) Eastern Cougar Extinct 2015

 Extirpated – any species that no longer exists in one part of Canada, but can be found in others (i.e. grizzly bear)

Classifying Species at Risk  Threatened – any species that is likely to become endangered if conditions are not reversed (i.e. wood bison)  Did you know ? –Almost once roamed the north but by the early 1900s their numbers had plummeted to fewer than 300. – ・ Since 1980 has brought their numbers up to approximately 4500 but bovine diseases, brucellosis and tuberculosis remains a major obstacle to further recovery

Wood Bison

 Vulnerable – any species that is at risk because of low numbers (i.e. grey fox)

Classwork  Page 14-15, #2  Read pages #1 - #3

Activity- Food Chains  3 groups: –18 Grasshoppers –6 Shrews –2 Hawks  Grasshoppers hunt for food first  Put as much food (plants and flowers) in their stomachs  You have 30 seconds to eat without the threat of predators (shrews)  You can continue eating once the shrews are hunting

 Shrews- Watch the grasshoppers feed like good predators  Try to catch the grasshoppers by tagging them  Once you tag a grasshopper, you take their bag of food and the grasshoppers goes to the side.  You can tag more than one grasshopper but watch out for hawks!  Hawks- Go and hunt some shrews! –Don’t forget to take all their bags of food !

Food Chain Activity- Back in the Class  Uneaten players – Count your total food tickets  How many green did you have ?  How many pink?

SURPRISE  All the green plants were actually sprayed with a pesticide  This pesticide accumulates in food chains  All surviving grasshoppers with green tickets = dead  All surviving shrews with more than half green tickets= dead  Hawks- you don’t die…. But….

Hawks  You have so much pesticide in your body that the egg shells produced during your next mating season will be so thin that they eggs will not hatch successfully.  Eggs are also so thin that they break easily.  This does not get better as time goes on.  Result- ??

The Bald Eagle  In the early 1900’s biologists noticed a decline in their numbers  A pesticide, DDT was harming them

 DDT is insoluble in water  It is soluble in fats and oils  DDT was sprayed to kill mosquitoes – which carry the disease malaria  Bald eagles would eat small rodents (mice) that had been exposed to DDT

 This caused them to lay thin shelled eggs  As a result the baby eagles would not survive  Population numbers dropped  DDT has been banned in Canada since the 70’s

 Bioamplification: the movement of a toxin up the food chain (i.e. from plants – carnivores)

Endangered Species Video  Can you list the endangered species from the video?  What was causing them to become endangered?  What was being done to help them?  Was it working?

Scallops and Sharks  What is happening to the sharks?  How is this affecting the scallops?  Why is this happening?  What can be done to prevent it?