Biodiversity

Thursday 2/13/25 Do Now

1. Who do you think is most

correct and why?

2. What do you think it means

when we call an ecosystem
"stable"?

Homework: complete any biodiversity

assignment if needed

Materials:

1. Notebook
2. Planner
3. Pencil

Biodiversity

Which side looks like it has more life?

Biodiversity

• Biodiversity is the amount of variation

of life on Earth

• Ecosystem diversity – different types of

ecosystems means different types of
habitats

• Species diversity – variety of species

within an ecosystem. This causes an
increase in producers to give more energy
for consumers

Which one is more biodiverse?

Sustainability

• Sustainability is an ecosystem’s ability

to keep stable conditions during or
after disruptions

• An ecosystem with more species has

more biodiversity and a better health

• Biodiversity = sustainability

• Healthy ecosystems are better are

handling fires, floods, droughts, and
diseases

Threats to Biodiversity

• Climate change
• Pollution
• Habitat loss
• Overfishing/Overhunting
• Invasive species

Invasive species

• Any species that is not from that environment that overpopulates and overeats.

• They are introduced into their new

environment by ships, accidental
release, or by people bringing food or
animals.

How the invasive lionfish hurts a food web

Multiple Choice

When there is higher biodiversity...

• more organisms are likely to die because they can't adapt to environmental changes.

• there is more diversity and higher sustainability of life.

• there is less diversity.

• there is more diversity and lower sustainability of life

Multiple Choice

High biodiversity is ...

• having a lot of the same organism.

• having a few of the same organism.

• only having one of each organism.

• having a lot of variety of different organisms.

Check for Understanding

1. How does overfishing affect biodiversity? How does it affect the

stability of an ecosystem?

2. How does pollution affect biodiversity?

Thursday Activities

• Complete the notes!