Warm Up1. How does population affect the world’s resources?2. What does the term “biodiversity” mean to you?

3. Make sure to turn in your homework! (Population Dynamics handout)

Objective & Agenda

• SWBAT Explain how abiotic and biotic factors interact to create the various biomes.

1. Biodiversity Notes2. Video Analysis3. Biotic vs. Abiotic

Factors4. How Humans are

Involved & Solutions5. Global Biomes &

practice6. Exit Ticket

Lots of VOCABULARY so HEADS UP

What is the biosphere?

• The biosphere is all life on Earth

BiodiversityA measurement of the variety of

life (species) within an

ecosystem

LEARNING OBJECTIVE:We will learn the importance of biodiversity in ecosystems.

What is biodiversity?

• Bio means: life• Diversity means: variety• Put the two together, and you get

or . • Let’s take a look at what biodiversity looks like:

http://www.guardian.co.uk/environment/gallery/2010/oct/04/bi0diversity100-wildlife-gallery

life variety variety of lifeWhat is a BIOME?

Interdependence

• Every species is linked, directly or indirectly, with a multitude of others in an ecosystem.

• Plants provide food, shelter, and nesting sites for other organisms. For their part, many plants depend upon animals for help in reproduction (bees pollinate flowers, for instance) and for certain nutrients (such as minerals in animal waste products).

• All animals are part of food webs that include plants and animals of other species (and sometimes the same species).

Why is biodiversity important?

• While you watch this video, write down five key facts that you find interesting.

http://www.youtube.com/watch?v=4O1AwrQpjK8&feature=fvsr

FAST FACT

• More than 67 % of Americans are considered overweight

Abiotic vs. Biotic FactorsBoth play an important role in biodiversity…but

what’s the difference?Biotic Factors

Abiotic Factors

Abiotic vs. Biotic Factors

Biotic, meaning of or related to life, are living factors. Plants, animals, fungi, protist and bacteria are all biotic or living factors.

Abiotic vs. Biotic Factors

Abiotic, meaning not alive, are nonliving factors that affect living organisms. Environmental factors such habitat (pond, lake, ocean, desert, mountain) or weather such as temperature, cloud cover, rain, snow, hurricanes, etc.

What is the difference between Abiotic & Biotic Limiting Factors?

What is the difference between Abiotic & Biotic Limiting Factors?

Difference: Living vs. Non-living

***Similarity: Both Control Population!***

Both are important…It’s a balance!Biotic Factors

Abiotic Factors

LIMITING FACTORSLimiting factors are things that are needed to survive. The availability of limiting factors controls the size of a population.

EX: food, water, air, space, sunlight, nutrients

ABIOTIC LIMITING FACTORS

Abiotic limiting factors are non-living things that control the size of the population.

EX: water, oxygen, sunlight, temperature

BIOTIC LIMITING FACTORS

Biotic limiting factors are living things that control the size of the population.

EX: food, predators, disease

CARRYING CAPACITY

Carrying capacity is the largest number of individuals (population) an area can supportWhat would be the carrying capacity of your house?

• Ecology is the study of plants and animals and the relationships they have to each other and to their natural environment

• An ecosystem describes the system where these relationships occur– Ecosystems are often similar to biomes

Ecology

Benefits of Biodiversity to Humans

Climate stabilityGenetic varietyUndiscovered resourcesRicher soilsNew technologyNatural resources

• Pollution• Deforestation• Overfishing• Habitat destruction• Depleting resources• Extinction

How can we harm biodiversity?

**Invasive species – a plant or animal introduced by humans**

Examples of invasive species:

• The world is a global ecosystem – every aspect of it, both biotic and abiotic, is essential for the life of something on earth.

• When you remove one piece, and the whole thing may crumble.

Summary:

How science is helping to conserve Biodiversity

• Studying species, ecosystems and their interactions with humans to learn about biodiversity,

• How biodiversity is changing and how we can conserve it.

• Making their findings available to policy makers to inform decisions about agriculture, fisheries, medicine, development and conservation.

• Initiatives such as Biodiversity Month are uniting scientists and the public to share information.

BIOMEA biome is a group of ecosystems that have the same climate and similar organisms.

Same climate (long term weather patterns) and organisms (plants/animals)= biome

COMBINES BOTH ABIOTIC & BIOTIC FACTORS

Global Biome Stations

Learn about how Abiotic & Biotic Factors Make up each of the 7 Complex Biomes:

7 stations X 4 minutes a piece = 28 minutesWhen finished practice using the independent

practice on the back.