do now compare and contrast exponential growth...

Tuesday Oct 14th-Week 10

TOPIC: Human Population OBJ : 6-7

DO NOW:

EXT: Ecology Packet DUE DATE: Oct 21st

DW: 4.2 Notes/Graph

***Quiz on TUESDAY

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EXIT: Fill in your level of understanding AND Speculate what factor would cause a country to have a negative growth rate.

HANDOUTS to PICK-UP:

-EXT packet

-Human Population Graph

TURN IN to ABS box:

SEMINAR 2:

BEFORE/AFTER SCHOOL:

DW-Oh Deer

-Discuss EXT assignment

-Go over section 4.2

-Work on Human Population Graph

Compare and Contrast Exponential growth and

Logistic Growth.

AG

EN

DA

AB

SEN

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Science of Life

TUESDAY: ___10__/__14___

OBJECTIVE…#_3-5_____ TOPIC:

Population Dynamics

Daily Work Grade- OH DEER!

DW GRADE: 2 1 0

TUESDAY

DO NOW Q: Compare and contrast

exponential growth and logistic

growth

A: Both measure growth

and have a lag phase. J-no

limiting factors, no

carrying capacity. S-

Limiting factors & carrying

capacity.

UNIT OBJECTIVES

6---DESCRIBE how humans impact (+/-) biodiversity

7---IDENTIFY how biodiversity is increased / decreased

Vocabulary

These should be done by test day!

demography

demographic transition

zero population growth -- ZPG

age structure

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OH Deer! Number of Deer and Wolves over 30 Years

# of Deer

# of Wolves

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Series1

Series2

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4.2 Human Population

WHAT YOU WILL LEARN -how to explain the trends in human population growth

-how to compare the age structure of representative nongrowing, slowly growing, and rapidly growing countries

-predict the consequences of continued population growth

Human population growth changes over time

MAIN IDEA

Human Population Growth

The study of human population size, density, distribution,

movement, and birth and death rates is demography.


Technological Advances For thousands of years,

environmental conditions kept the

size of the human population at a

relatively constant number below the

environment’s carrying capacity.

Humans have learned to alter the

environment in ways that appear to

have changed its carrying capacity.


Human Population Growth

Rate

Although the human

population is still

growing, the rate of its

growth has slowed.


Trends in Human Population Growth

Population

trends can be

altered by

events such as

disease and

war.


Human population

growth is not the same in all countries.

Zero population growth (ZPG)

occurs when the birthrate equals

the death rate.

Zero Population Growth

The age structure eventually

should be more balanced with

numbers at pre-reproductive,

reproductive, and post-

reproductive ages being

approximately equal.


Human Carrying Capacity

Scientists are concerned

about the human population

reaching or exceeding the

carrying capacity.

An important factor is the

amount of resources from the

biosphere that are used by

each person.


Weekend Assignment

• Fill out Population Graph (should have class time for

this)

• Complete Ecology Packet

• DUE ON TUESDAY 10/21

EXIT FILL-IN: level of understanding of today’s objective

EXIT: SPECULATE what factor would cause a country to have a negative growth rate.

do now compare and contrast exponential growth...

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