Teaching Biodiversity in K-to-12 Science Curriculum

BIODIVERSITY:Extinction and

Measuring Population Density

OBJECTIVES:1. Identify the causes of extinction and explain how it is done.

2. Determine the pattern of population distribution using mathematical formula.

3. Compare the distribution patterns of the different populations.

4. Read selections about phenomena that are related to biodiversity and define the words that will be cited as to how they were used in the selection.5.Write a reflection paper about the video on protecting biodiversity.

SPECIES

ECOSYSTEMTAXONOMY

BIODIVERSITY

ECOSYSTEMBALANCED

Living Things(Producers

and Consumers)

Non-living Things

SPECIES EXTINCTION

SPECIESa group of living organism

consisting similar individuals capable of exchanging genes or of interbreeding, considered as

the basic unit of taxonomy.

EXTINCTIONstate or process of being extinct;

state of being not existing

SPECIES EXTINCTION

SPECIE EXTINCTIONThe vanishment of a group

of living organism consisting similar

individuals capable of exchanging genes or of

interbreeding.

SPECIES EXTINCTION

CAUSES OF SPECIE EXTINCTION

• Hunting and trapping• Taking animals for profit• Destruction of habitat• Pollution• Overharvesting

SPECIES EXTINCTIONPHOTO QUIZ





POPULATION DENSITY

LIMITING FACTORS

CARRYING CAPACITY

POPULATION DENSITY

Density = number of individuals

size of area

POPULATION DENSITYDensity = number of

individualssize of area

POPULATION DENSITY

Width - 5 inches Length - 8 inches

- fishes - sea weeds

- planktons

SPECIE DIVERSITY

Resilience

EcologicalCommunities

Withstand

SPECIE DIVERSITY

Conservationist

Rain Forests

Lose

ComprehensiveStrategy

SPECIE DIVERSITY

Habitat Types

Irreversible

Devastating

SPECIE DIVERSITY

Extinction

GeneticDiversity

Survival

BIODIVERSITY LOSS

WHAT CAN BE DONE?

BIODIVERSITY LOSS

Every species are important!

BIODIVERSITY LOSS

But their homes are wrecked, leading them to deaths.

BIODIVERSITY LOSS

What can people do to protect biodiversity?

BIODIVERSITY LOSS

1. PROTECTING AREASCreating protected areas where human activity is limited is the best way to prevent deforestation and exploitation of organisms and the resources they need to survive.

2, PREVENTING SPECIES INTRODUCTION

It is often much easier and less expensive to prevent a problem from developing in the first place than to try to fix it once it occurs!

BIODIVERSITY LOSS

3. INFORMING/ EDUCATINGEducation is a powerful tool, and the more people know about biodiversity loss, the

more they will be prepared to help slow it.

4. SLOWING CLIMATE CHANGEAny efforts as individuals, organizations, or

governments, to slow current human-caused global warming is a step towards

slowing biodiversity loss.

BIODIVERSITY LOSS

5. PROMOTTING SUSTAINABILITY

BIODIVERSITY LOSS

ACTIVITY!

On a half sheet of paper, write a reaction paper about the video presented.

BIODIVERSITY:Extinction and

Measuring Population Density