Biodiversity: Who cares?. Ecosystems ECOSYSTEM: All of the living and nonliving things that interact in a particular environment. Ecosystems can be as.

Biodiversity: Biodiversity:

Who cares?Who cares?

EcosystemsEcosystems

ECOSYSTEM: ECOSYSTEM: All of the living All of the living and nonliving things that interact and nonliving things that interact in a particular environment. in a particular environment. Ecosystems can be as small as a Ecosystems can be as small as a meadow or swamp or as large as a meadow or swamp or as large as a desert or forest. desert or forest.

SpeciesSpecies Organisms that are so similar that they can Organisms that are so similar that they can

produce offspring that can also produce produce offspring that can also produce offspring.offspring.

Ex: humans, dogs or cats are speciesEx: humans, dogs or cats are species

PopulationsPopulations A group of organisms that are of the same A group of organisms that are of the same

species that live in a particular area.species that live in a particular area. Ex: The people who live in Pittsburgh are a Ex: The people who live in Pittsburgh are a

population.population. Ex. A population of cacti in the Mohave desertEx. A population of cacti in the Mohave desert

CommunitiesCommunities A group of populations that live in a particular A group of populations that live in a particular

area that interact with one another.area that interact with one another. Ex: Cacti, iguanas, and crabs are part of the Ex: Cacti, iguanas, and crabs are part of the

Galapagos Island CommunityGalapagos Island Community Ex. Gazelles, Lions and grasses are part of the Ex. Gazelles, Lions and grasses are part of the

African Savannah. African Savannah.

EcosystemsEcosystems

Within a biome, exists many ecosystems. Within a biome, exists many ecosystems. This includes all of the living and This includes all of the living and nonliving factors.nonliving factors.

BiomesBiomes A biome describes the climate and types of A biome describes the climate and types of

plants that are found in similar places around plants that are found in similar places around the worldthe world

Which do you like better?Which do you like better?

A B

Which do you like better?Which do you like better?

A B

Which do you like better?Which do you like better?

A B

Which do you like better?Which do you like better?

A B

A B

Which do you like better?Which do you like better?

A B

Which do you like better?Which do you like better?

A B

Which do you like better?Which do you like better?

What do you think biodiversity What do you think biodiversity means?means?

Bio =

BioBiodiversitydiversity

What does “Bio” mean?

BioBiodiversitydiversity

Diversity = Variety

What does “Diversity” mean?

BiodiversityBiodiversity is the is the variety of lifevariety of life on on Earth and the Earth and the essential essential

interdependence of all living thingsinterdependence of all living things

• Scientists have identified more than 2 million species. Tens of millions -- remain unknown

•The tremendous variety of life on Earth is made possible by complex interactions among all living things including microscopic species like algae and mites.

There are 3 components of There are 3 components of biodiversity biodiversity

1.1. Diversity of genesDiversity of genesChihuahuas, beagles, and rottweilers are all dogs—but Chihuahuas, beagles, and rottweilers are all dogs—but

they're not the same because their genes are different.they're not the same because their genes are different.

ChihuahuaChihuahua BeagleBeagle

RottweilersRottweilers

Diversity of speciesDiversity of speciesFor example, monkeys, dragonflies, and For example, monkeys, dragonflies, and meadow beauties are all different species. meadow beauties are all different species.

Saki Monkey Golden Skimmer Meadow Beauty

There are 3 components of There are 3 components of biodiversity biodiversity

Variety of ecosystemsVariety of ecosystemsPrairies, Ponds, and tropical rain forests are all Prairies, Ponds, and tropical rain forests are all ecosystems. Each one is different, with its own set of ecosystems. Each one is different, with its own set of species living in it.species living in it.

Paines Prairie

Hoh Rain Forest

Florida Sand hill Pond

There are 3 components of There are 3 components of biodiversity biodiversity

Which is more diverse?Which is more diverse?

A B

Which is more diverse?Which is more diverse?

A B

Which is more diverse?Which is more diverse?

A B

A B

Which is more diverse?Which is more diverse?

A B

Which has more cultural Which has more cultural diversity?diversity?

Which has more biodiversity?Which has more biodiversity?

A B

Which has more biodiversity?Which has more biodiversity?

A B

Biodiversity has Intrinsic Value

Intrinsic Value = Something that has value in and of itself

Biodiversity also has utilitarian Biodiversity also has utilitarian ValueValue

Utilitarian Value = the value something has as Utilitarian Value = the value something has as a means to another’s end.a means to another’s end.

Utilitarian values include:• Goods• Services• Information

What do we get from What do we get from biodiversity?biodiversity?

OxygenOxygen

FoodFood

Clean WaterClean Water

MedicineMedicine

AestheticsAesthetics

IdeasIdeas

Should we be concerned about Should we be concerned about biodiversity?biodiversity?

What we know:What we know: The Earth is losing species at an alarming rateThe Earth is losing species at an alarming rate

Some scientists estimate that as many as 3 Some scientists estimate that as many as 3 species species per hour are going extinct and 20,000 extinctions occur per hour are going extinct and 20,000 extinctions occur

each year.each year. when species of plants and animals go extinct, many when species of plants and animals go extinct, many

other species are affectedother species are affected. .

Threats to biodiversityThreats to biodiversity

Habitat destructionHabitat destruction

PollutionPollution

Species IntroductionsSpecies Introductions

Global Climate ChangeGlobal Climate Change

ExploitationExploitation