Biodiversity

Biodiversity: Importance and Risks

​Ms. Havu, Environmental Science

Multiple Choice

We live in the deciduous forest. What type of biodiversity do we have?

• Low biodiversity

• High biodiversity

Multiple Choice

How do you know we have high biodiversity?

• We have a low amount of different types of plants and animals

• We have a lot of people who live here

• We have a lot of different types of plants and animals

• Nothing grows here

Poll

High biodiversity means our ecosystem is healthy.

• Yes

• No

Poll

What could having a low biodiversity mean?

• The organisms that live there suffer

• The ecosystem is healthy and can recover from disturbance quickly

• A disruption to the ecosystem won't recover as quickly

• Disruptions happen all the time and can be easily fixed

The variety of organisms in an area, by species, genes, populations, and communities, also called biological diversity.

Biodiversity

• High biodiversity - Many plants and animals in an area
  

• Low biodiversity - Low amount of plants and animals in an area

Biodiversity

Multiple Select

The variety of organisms in an area, also called biological diversity, is identified by which of the following? (Select all that apply)

• species

• genes

• populations

• communities

• type of cell phone

Quizizz is being mean and making me pay to add a video

So instead click on this link to watch the video: https://www.youtube.com/watch?v=b6Ua_zWDH6U

Watch up to 1:40 and take notes on the importance of biodiversity

Multiple Select

Why do we need forests? (Select all that apply)

• To lock away carbon

• To protect our coasts

• Keep the climate stable

• To give us medicine

High - Many variations in DNA between members of the same species

Low - Few variations in DNA between members of the same species

Genetic Diversity

High - Many types of different species in the same area

Low - Few types of different species in the same area

Species Diversity

​High - Many types of habitats for organisms to live

Low - Few types of habitats for organisms to live

Ecosystem Diversity

​3 Main Parts of Biodiversity

Multiple Select

What are the 3 main types of biodiversity? (Select all that apply)

• Endangered

• Genetic

• Species

• High Risk

• Ecosystem

Multiple Choice

This is an example of:

• High species diversity

• High genetic diversity

• Low species diversity

• High ecosystem diversity

The more variation in DNA

​between members of a species, the more protections they have from changes to their environment.

In this image, the brown fish and the green fish have the highest genetic diversity. If water oxygen changes, they have the best chance of survival.

Genetic Diversity

​Different DNA means some organisms have the ability to fight disease better.

​​Disease

As environment changes, some organisms will be able to adapt to their new environment easier

Climate Change

Different DNA means some organisms will be able to survive their predators better.

​​Predator Survivability

Yup, Quizizz is still being a jerk

https://www.youtube.com/watch?v=Pop-xetGaBM

Watch the video on the Peppered Moth. Write your answers to their questions in your notes.

Before Industrial Revolution, most moths were white and speckled black. Only some were black.

1848

This white and black speckles gave them camouflage on trees.

1848

​As the British burned coal, their buildings and trees turned black, and so did the moths.

​​1900

​Why did the white ones start to disappear?

1900

Multiple Choice

Why were the white moths starting to disappear?

• The coal turned the white moths black.

• They were actually different species and the white ones went extinct.

• The white ones got a disease that the black ones didn't.

• Predators ate the white ones at a higher rate.

​Because some of the moths had different DNA variations, their population was able to survive as their environment changed.

Genetic Diversity

• Only lives in Mt. Charleston

• Is "trapped" there by the desert

• Has limited breeding pool​

• Is endangered because of climate change

• Low genetic diversity

​Mt. Charleston Blue Butterfly

​Does low genetic diversity mean it is unimportant?

Poll

Does low genetic diversity mean it is unimportant?

• Yes

• No

• A healthy ecosystem relies on all of its species to make it successful

• The loss of one organism can break down the structure of our food webs

Food Webs

Importance of Biodiversity

• Ecosystem function

• Agriculture

• Medicine

• Tourism and Recreation

Risk to Biodiversity

• Habitat loss and change

• Invasive Species

• Pollution

• Overharvesting

• Climate Change

Multiple Choice

What else could low biodiversity mean?

• The organisms that live there suffer

• A disruption to the ecosystem won't recover as quickly

• The ecosystem is healthy and can recover from disruption quickly

• Disruptions happen all the time and can easily be fixed

Poll

Is the loss of biodiversity a risk in our community?

• Yes

• No

• Never thought about it

• I know the answer is yes, but I've never thought about it before!