Biodiversity

Look how many more different species of Insects there are compared to everything else living!!!!

Biodiversity

Economic vs Ecological Value

• Economic value is how biodiversity and organisms affects human.

• •Ecological value is how biodiversity and organisms effect

other organisms.

How Ecosystems Make Money

Many companies run tours to rainforest, savannas, mountains, and other places. People will sell recourses (hopefully

renewable) to make money also.

Disruption of Biodiversity

Other organisms will be harmed or die if the biodiversity is disrupted. Also if economy will go down by not having resources

to use as a profit.

Keystone Species

• Keystone species are the species that affect other species.

Figure 2

Think about Biodiversity In Our Life?!

What Factors Effect Biodiversity?

Factors that affect biodiversity in an ecosystem are: Climate Area Niche Diversity Genetic Diversity Extinction

https://www.youtube.com/watch?v=9h7P8gWpolQ

Figure 3

Park SizeThe dark green area represents three different park plans. Which plan supports the most bio-diversity?AreaA large area will usually contain more species than a small area

ClimateTropical rain forests have mostly consistent temperatures and lots of rainfall meaning many plants grow year round. Food is always available for organisms.

APPLY IT!

Not only can this happen to

potato plant but it can also

happen to other plants in which we consume in

our daily lives and without

food we would all die of

starvation.

Polar Bears

EndangeredSpecies in danger of

extinction in the near future

ThreatenedSpecies that

could become endangered in the near future.

What is…

Niche Diversity- The role of an organism in its habitat or how it makes it’s living

Genetic diversity- Greatest genetic diversity exists within unicellular organisms

Species lacking diverse genes are less capable to adapt and survive changes to the environment

http://www.bing.com/videos/search?q=scientific%20niche%20and%20genetic%20diversity%20for%20kids&qs=n&form=QBVR&pq=scientific%20niche%20and%20genetic%20diversity%20for%20kids&sc=0-0&sp=-1&sk=#view=detail&mid=8FAF4DDFBEEB2CFE667B8FAF4DDFBEEB2CFE667B

Extinction- disappearance of a species from earth

Damaging Biodiversity

Habitat Destruction:Clearing forests, filling wetlands,Or making habitats smaller

Poaching:illegal killing or removal of wildlife

Pollution:Reaches animals through water, food, or the air

Exotic Species: Exotic species can outcompete and damage native species

Protecting Biodiversity

How do humans affect biodiversity

• Humans can affect biodiversity in many ways.• Some people protect biodiversity by focusing on

an individual • Species but others try to protect the whole

ecosystem.

Three Methods for Protecting Biodiversity.

1. Captive Breeding- Mating of animals in zoos or on wildlife preserves

1. Laws and Treaties- Prohibits trade of products made from threatened or endangered species

1. Habitat Preservation- Most effective way to preserve biodiversity is to protect whole ecosystem

Captive Breeding

• Captive breeding is the mating of animals in zoos or on wildlife preserves.

• There are many wildlife preserve services.–WE ARE LOSING OVER A DOZEN PLANT AND ANIMAL

SPECIES EVERYDAY.•At this rate is far faster than when the dinosaurs died out 65

million years ago.

Laws and Treaties

• The United States has many laws that prohibit people hunting and killing certain species that are near extinct.

• Such as the Endangered Species Act which prohibits trade of products made from threatened or endangered species.

• The Convection on International Trade in Endangered Species have saved over 800 different threatened or endangered species.

Habitat Preservation

• If we do this we can save endangered species.• Many countries have set aside wildlife habitats as parks and

refuges.

The same land resources can be used in different ways to meet different needs. What are the costs and benefits of these two different land uses?

Same Land, Different Use

Endangered SpeciesCategory United States World

Mammals 53 301

Birds 74 227

Reptiles 16 74

Amphibians 6 14

Fishes 53 64

Snails 3 4

Clams 37 39

Crustaceans 8 8

Insects 11 12

Arachnids 3 3

Plants 179 180

1. Which category had the highest number of endangered species in 2000?2. Which category of animals had the highest number of endangered

species in the United States? Which had the highest number worldwide?3. In which categories did the United States have all the endangered species?4. How many endangered animal species were there in the United States in 2000?

How many endangered animal species were there worldwide?