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HUMAN IMPACT on the BIOSPHERE Chapter 6-1 A Changing Landscape. Watch the Chapter 6 video. Food webs. Biogeochemical cycles. http://www.physicalgeography.net/fundamentals/images/nitrogencycle.jpg. Humans participate in ____________ & ____________________ Ecosystems provide us with

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Human impact on the biosphere chapter 6 1 a changing landscape

HUMAN IMPACT on the BIOSPHEREChapter 6-1A Changing Landscape


Human impact on the biosphere chapter 6 1 a changing landscape

Watch the Chapter 6 video


Human impact on the biosphere chapter 6 1 a changing landscape

Food webs

Biogeochemical cycles

http://www.physicalgeography.net/fundamentals/images/nitrogencycle.jpg

Humans participate in

____________ & ____________________

Ecosystems provide us with

a variety of _____________________

“GOODS & SERVICES”

http://www.brevardcounty.us/mrrp/images/misc/boat_cartoon.jpg

http://www.physicalgeography.net/fundamentals/images/nitrogencycle.jpg


Goods services provided by ecosystems

For image sources: see last slide

“GOODS & SERVICES”provided by ecosystems

__________________

___________ production

Nutrient ____________________

Solar energy

Oxygen

storage & recycling


Goods services provided by ecosystems1

For image sources: see last slide

“GOODS & SERVICES”provided by ecosystems

____________regulation

__________ production

___________for wildlife

Climate

Food

Habitats


Goods services provided by ecosystems2

Images from:

“GOODS & SERVICES”provided by ecosystems

____________________of human and

industrial waste

___________________ and

______________________

detoxification

Natural pest

disease control


Goods services provided by ecosystems3

“GOODS & SERVICES”provided by ecosystems

Source of new ____________________

Air & water __________________

Soil _____________ and ___________

management

medicines

purification

erosion runoff


Human population

HUMAN POPULATION

http://www.learner.org/jnorth/spring2002/species/spring/Update041902.html#Humankind


World popluation

Image from: http://www.sleepbamboo.com/planet_people.jpg

WORLD POPLUATION

World clock

  • Current world population

    almost 7 BILLION

  • Estimates predict it will reach 9 billion by 2050

http://www.peopleandplanet.net/


Human activities can change local and global environments

HUMAN ACTIVITIES can change local and global environments!

____________________

____________________

_____________________

___________________________

HUNTING

AGRICULTURE

INDUSTRY

URBAN DEVELOPMENT

Images from:

http://www.cs.utexas.edu/users/s2s/latest/art1/src/proj/Art/cave_art/Hunters-Deer.jpg

http://www.istockphoto.com/file_thumbview_approve/127525/2/istockphoto_127525_farming.jpg

http://www.kidcrosswords.com/kidoutdoors/the%20environment/pollution_smokestacks.jpg

http://www.lubee.org/images/about-threats-1.jpg


Hunting and gathering

HUNTING AND GATHERING

Throughout human history, people have

____________ and ___________

in rivers, and _____________ wild seeds, fruits, and nuts.

Even these early people changed their _______________

hunted fished

gathered

environments

http://www.amonsoquath.net/gallery/pages/chee.html


Hunting and gathering1

HUNTING AND GATHERING

Today, people in many parts of the world still

follow the “hunter-gatherer” way of life.

These people make ______________ on the

environment. However, some are beginning to

use ____________________ such as guns,

snowmobiles, or other tools.

few demands

modern technology

http://www.travelwriter.co.za/let-the-train-strain_p2.html

http://www.museevirtuel.ca/Exhibitions/Inuit_Haida/inuit/snowmobile.jpg


When it becomes a problem

WHEN IT BECOMES A PROBLEM?

OVERHUNTING

_________________

________________

POACHING

http://msnbc.msn.com/id/8302763

http://www.aeffonline.org/images/poachersandelephant.jpg


Causes of endangered species

Causes of endangered species

______________________________

____________________

_________________

___________________________

OVERHUNTING

POACHING

HABITAT DESTRUCTION

INVASIVE SPECIES

Images from:

http://www.cs.utexas.edu/users/s2s/latest/art1/src/proj/Art/cave_art/Hunters-Deer.jpg

http://www.kidcrosswords.com/kidoutdoors/the%20environment/pollution_smokestacks.jpg

http://www.lubee.org/images/about-threats-1.jpg


Human impact on the biosphere chapter 6 1 a changing landscape

extinction

Miss Waldron’s Red Colobus monkey

Extinct 2000

OVERHUNTING can put animal populations at risk of ____________

Alagoas Curassow:

extinct in wild 1980’s

Dodo: extinct 1681

Moa: extinct 1500’s

http://www.petermaas.nl/extinct/speciesinfo/misswaldronredcolobus.htm

http://www.birdlife.org/datazone/species/index.html?action=SpcHTMDetails.asp&sid=100&m=0

http://lawyerkm.files.wordpress.com/2008/09/dodo_11.jpg

http://en.wikipedia.org/wiki/Moa


Vocab

http://www.southeastutah.org/photos/dino.jpg

VOCAB

extinct

Species that has died out = ______________

Species whose population size is

rapidly declining and will become

extinct if the trend continues

= _____________

Species that is in danger of

becoming endangered in

the near future = ____________

endangered

http://www.blackfootedferret.org/

threatened

http://www.fresnochaffeezoo.com/images/bald-eagle.gif


Human impact on the biosphere chapter 6 1 a changing landscape

Image from: http://members.graphicsfactory.com/clip-art/image_files/tn_image/2/1313572-tn_TombStone001_92007.jpg

According to the

World Conservation Union (IUCN),

784 extinctions have been

recorded since the

Some scientists estimate

at the rate we are going

24 percent of plants and animals

will be committed to extinction by 2050

We're talking about 1.25 million species!

http://www.igreens.org.uk/extinctions_predicted_from_globa.htm


Biodiversity threat

BIODIVERSITY THREAT

http://www.lubee.org/images/about-threats-1.jpg

Tropical rainforests are disappearing

at a rate of about 80 acres per minute.


Endangered whales

Endangered Whales


Example whales

EXAMPLE: WHALES

During the 19th and the earlier part of

20th centuries, over-hunting led to a

severe _________of whale

populations, and to _______________

of five whale species.

overkill

endangerment

Minke whale = most hunted species

http://news.bbc.co.uk/2/shared/spl/hi/guides/456900/456973/html/nn1page1.stm

http://en.wikipedia.org/wiki/Whaling#Conservation_status


Example north american buffalo

EXAMPLE: North American Buffalo

Wild buffalo

______________ in America once numbered

30 - 60 million, ranging from Virginia to

Alaska and all points in between.

By 1884, the buffalo

was close to extinction

due to ______________.

Pile of bison skulls, 1870’s

overhunting

http://en.wikipedia.org/wiki/American_Bison


How do we help

HOW DO WE HELP?

International Whaling Commission has

placed a moratorium on whaling.

Only works if nations voluntarily comply

http://www.cdnn.info/eco/whaling_250146.jpg


How do we help1

HOW DO WE HELP?

Conservation efforts, private ownership, and

reintroduction of buffalo have allowed the

population to recover slightly.

Today, the total buffalo

population in North

America is estimated at

90,000 and about

85 percent

of these animals are

privately owned.

http://en.wikipedia.org/wiki/American_Bison


What problems can this cause

WHAT PROBLEMS CAN THIS CAUSE?

Many endangered animals today are threatened by ____________________

Illegal poaching

http://www.aeffonline.org/images/poachersandelephant.jpg

http://cnnstudentnews.cnn.com/EARTH/9710/02/kenya.ivory.ap/


Overhunting poaching

OVERHUNTING/POACHING

endangered.

  • All five rhino species are ____________

  • Just a few decades ago, the world’s

    rhino population exceeded 100,000,

    but today there are less than 11,000 due to _____________ and _________________.

  • _______________ are in demand in many countries where they can bring over $60,000/lb.

    It is ground into medicine in China and

    carved into ceremonial dagger handles in Yemen.

habitat loss

poaching

Rhino horns

http://nationalzoo.si.edu/Publications/ZooGoer/2003/6/Sidebar_Forensics.cfm


Human impact on the biosphere chapter 6 1 a changing landscape

Convention on International Trade

in Endangered Species

WHAT CAN WE DO TO HELP?

The_________________________________________________________ (CITES)

bans international ________ in products

from endangered species.

trade

http://www.mtholyoke.edu/~sjberg/CITES.htm


What can we do to help

WHAT CAN WE DO TO HELP?

Support “Green” organizations that work for laws to establish quotas and protect species.

http://www.nwf.org/

http://www.maksimum.com/haberler/h/greenpeacee_cevre_cezasi.php

http://www.sierraclub.org/

http://www.sierraclub.org/


Human activities can also change local and global environments

HUMAN ACTIVITIES can also change local and global environments!

______________________________

____________________

_________________

___________________________

HUNTING and GATHERING

AGRICULTURE

INDUSTRY

URBAN DEVELOPMENT

Images from:

http://www.cs.utexas.edu/users/s2s/latest/art1/src/proj/Art/cave_art/Hunters-Deer.jpg

http://www.istockphoto.com/file_thumbview_approve/127525/2/istockphoto_127525_farming.jpg

http://www.kidcrosswords.com/kidoutdoors/the%20environment/pollution_smokestacks.jpg

http://www.lubee.org/images/about-threats-1.jpg


Human impact on the biosphere chapter 6 1 a changing landscape

By end of last ice age (about 11,000 years ago) humans began the practice of farming

= __________________

Soon people around the

world were growing

crops and raising

animals for food

AGRICULTURE

agriculture

http://www.bu.edu/mzank/Jerusalem/im/agriculture.jpg


Changing agriculture

Changing Agriculture

important

The spread of agriculture was one of most __________ developments in human history.

It _____________ in large quantities that could be stored for later.

Allowed people to __________________ and enabled the _______________of cities, governments, laws, and writing.

provided food

settle in one place

development

http://www.travelwriter.co.za/let-the-train-strain_p2.html

http://www.museevirtuel.ca/Exhibitions/Inuit_Haida/inuit/snowmobile.jpg


Changing agriculture1

Changing Agriculture

food shortages

By middle of 20th century, despite agricultural advances there were ________________in many parts of the world.

Governments and scientists began a major effort to ____________ food production

http://www.enjoy.org/hstech/HungerSite02/america/FordSchwartz/

increase


Changing agriculture2

Changing Agriculture

highly productive

Plant breeders: developed _______________

“miracle strains” of wheat and rice

AND

Modern ________________________spread

This effort = ______________________

farming techniques

http://www.wfbf.com/media_center/photo_gallery/Soybean%20combine.jpg

http://interactive.usask.ca/ski/media/stills/agriculture/crops/t_plant-breeder.jpg

GREEN REVOLUTION


Changing agriculture3

Changing Agriculture

MONOCULTURE

Large fields are planted with a single variety year after year = ________________

Chemical _____________

boosted crop growth

and ______________

controlled

damaging insects

fertilizers

pesticides

http://imagesource.allposters.com/images/NGSPOD04/107870.jpg


Changing agriculture4

Changing Agriculture

double

Over the last 50 years, the green revolution

has helped world food production _________.

Even though hunger is still a major problem in parts of the world, agriculture and

the green revolution have provided many people with better nutrition.

http://www.enjoy.org/hstech/HungerSite02/america/FordSchwartz/


Challenges for future

Challenges for Future

food supplies

Modern agriculture has increased world _________________, but has also created ________________ challenges.

Large scale monoculture leads to problems with ____________ and _______________.

Use of farm chemicals (fertilizers & pesticides)

can damage ____________ insects, ________________ water supplies, and ______________ in the environment

ecological

Insect pests

diseases

beneficial

contaminate

accumulate


Challenges for future1

Challenges for Future

water

Finding enough __________ for irrigation is another problem.

Less than ¼ of US farmland

relies heavily on ___________,

but this area produces a

__________ portion of

our harvest.

irrigation

major

http://www.suu.edu/faculty/bowman/Econ1740/HeilbronerZinn/ogallala_aquifer_map_pic_2.gif


Challenges for future2

http://www.suu.edu/faculty/bowman/Econ1740/HeilbronerZinn/ogallala_aquifer_map_pic_2.gif

Challenges for Future

OGALLALA

Many Midwest states rely

on the ___________aquifer

for their water needs.

However, we are using

water faster than the

water cycle can _____________ it.

Evidence indicates this aquifer may __________ within 20-40 years.

replenish

run dry


How do we help2

HOW DO WE HELP?

modern technology

Applying ____________________ to farming is changing some of this environmental impact.

EX:_________________ and

___________________

enable farmers to

apply chemicals

_____________________

Satellite imaging

GPS technology

only where needed


How do we fix it

HOW DO WE FIX IT?

Applying modern technology to farming is changing some of this environmental impact.

EX:

___________ and other

“green” farming methods

can ___________________

and ___________________

“No-till”

reduce soil erosion

protect ecosystems

http://cbarc.aes.oregonstate.edu/images/no-till.jpg


Human impact on the biosphere chapter 6 1 a changing landscape

Sustainable Agriculture Ways to preserve the environment

Section 6-4

Cover Crops

Legumes, grasses, and other

cover crops recycle soil nutrients,

reduce fertilizer need, and

prevent weed growth.

Controlled Grazing

By managing graze periods and herd

densities, farmers can improve nutrient

cycling, increase the effectiveness of

precipitation, and increase the carrying

capacity of pastures.

Biological Pest Control

The use of predators and parasites

to control destructive insects

minimizes pesticide use as well as

crop damage

A

B

C

Yr. 1

Contour Plowing

Contour plowing reduces

soil erosion from land runoff.

On hilly areas, plowing is done

across the hill rather than

straight up and down.

Crop Rotation

Different crops use and

replenish different nutrients.

By rotating crops, the loss

of important plant nutrients

is decreased.

oats

alfalfa

corn

Yr. 2

alfalfa (plowed in)

corn

alfalfa

Yr. 3

oats

alfalfa

corn


Human activities can also change local and global environments1

HUMAN ACTIVITIES can also change local and global environments!

______________________________

____________________

_________________

___________________________

HUNTING and GATHERING

AGRICULTURE

INDUSTRY

URBAN DEVELOPMENT

Images from:

http://www.cs.utexas.edu/users/s2s/latest/art1/src/proj/Art/cave_art/Hunters-Deer.jpg

http://www.istockphoto.com/file_thumbview_approve/127525/2/istockphoto_127525_farming.jpg

http://www.kidcrosswords.com/kidoutdoors/the%20environment/pollution_smokestacks.jpg

http://www.lubee.org/images/about-threats-1.jpg


Industrial growth and urban development

INDUSTRIAL GROWTH and URBAN DEVELOPMENT

The impact of humans on the biosphere was

transformed by the _____________________

during the 1800’s.

INDUSTRIAL REVOLUTION

http://www.archives.gov/research/american-cities/images/american-cities-015.jpg


Human impact on the biosphere chapter 6 1 a changing landscape

modern conveniences

Industrial productivity and scientific

advancements have provided us with

the ______________________ we enjoy today

http://www.vallartasource.com/images/cell_phone.jpg

http://www.danielwiener.com/daniel/tips/archives/humvee_2.jpg

http://www.scriptfx.com/gallery/computer/laptop.jpg

http://www.wii-volution.com/images/wii/gamecube.jpg

http://www.nbz.ru/pic/catalog/ipod/ipod_color.gif


Human impact on the biosphere chapter 6 1 a changing landscape

BUT . . .

The spread of urban

areas has resulted in

the _____________

habitats.

Air, water, & soil

_____________ has had an impact on surrounding ecosystems.

destruction

pollution

http://www.kidcrosswords.com/kidoutdoors/the%20environment/pollution_smokestacks.jpg


Human impact on the biosphere chapter 6 1 a changing landscape

burning fossil fuels

Energy production requires

______________________

which impacts

_______________

and _______________.

air quality

global climate

MORE ON THISIN 6-4!

http://tuberose.com/Environmental_Toxicity.html


Hey we gotta eat and have a place to live don t we

http://www.cibike.org/Eating.htm

HEY, WE GOTTA EAT and HAVE A PLACE TO LIVE, DON’T WE?

The planet provides us with the resources we need to stay alive, but . . .

how do we balance our needs (wants?)

with keeping the planet healthy so it will be around for future generations?


South dakota core science standards

SOUTH DAKOTA CORE SCIENCE STANDARDS

NATURE OF SCIENCE:Indicator 1: Understand the nature and

origin of scientific knowledge

9-12.N.1.1. Students are able to evaluate a scientific discovery to determine and describe how societal, cultural, and personal beliefs influence scientific investigations and interpretations

  • Recognize scientific knowledge is not merely a set of static facts

  • but is dynamic and affords the best current explanations.

  • Discuss how progress in science can be affected by social issues.


South dakota core science standards1

SOUTH DAKOTA CORE SCIENCE STANDARDS

NATURE OF SCIENCE:Indicator 1: Understand the nature and

origin of scientific knowledge

9-12.N.1.2. Students are able to describe the role of observation and evidence in the development and modification of hypotheses, theories, and laws.

  • Recognize and analyze alternative explanations and models.

  • Evaluate the scientific accuracy of information relevant to a specific issue


South dakota core science standards2

SOUTH DAKOTA CORE SCIENCE STANDARDS

LIFE SCIENCE:Indicator 3: Analyze how organisms are linked to one

another and the environment.

9-12.L.3.1. Students are able to identify factors that can cause changes in stability of populations, communities, and ecosystems.

  • Predict the results of biotic and abiotic interactions.

    Examples:

    Fluctuation in available resources

    (water, food, shelter)Human activityResponse to external stimuli


South dakota core science standards3

SOUTH DAKOTA CORE SCIENCE STANDARDS

EARTH SCIENCE:Indicator 1: Analyze the various structures and

processes of the Earth system.

9-12.E.1.2. Students are able to describe how atmospheric chemistry may affect global climate.

Examples: Greenhouse Effect, ozone depletion, ocean’s effects on weather

9-12.E.1.3. Students are able to assess how human activity has changed the land, ocean, and atmosphere of Earth.

Examples: forest cover, chemical usage, farming, urban sprawl, grazing


South dakota core science standards4

SOUTH DAKOTA CORE SCIENCE STANDARDS

TECHNOLOGY, ENVIRONMENT, & SOCIETY:Indicator 1: Analyze various implications/effects of

scientific advancement within the environment and society.

9-12.S.1.2. Students are able to evaluate and describe the impact of scientific discoveries on historical events and social, economic, and ethical issues.

Examples: nuclear power, global warming, and alternative fuels


South dakota advanced science standards

SOUTH DAKOTA ADVANCED SCIENCE STANDARDS

LIFE SCIENCE:Indicator 3: Analyze how organisms are linked to one

another and the environment.

9-12.L.3.1A. Students are able to relate genetic, instinct, and behavior patterns to biodiversity and survival of species. (SYNTHESIS)

  • Relate the introduction of non-native species to the disruption of an ecosystem.

    Examples: zebra mussels


South dakota core science standards5

SOUTH DAKOTA CORE SCIENCE STANDARDS

TECHNOLOGY, ENVIRONMENT, & SOCIETY:Indicator 2: Analyze the relationships/interactions

among science, technology, environment, and society.

9-12.S.2.1. Students are able to describe immediate and long-term consequences of potential solutions for technological issues.

Examples:

environmental, power and transportation, energy sources, issues

9-12.S.2.2. Students are able to analyze factors that could limit technological design.

Examples: ethics, environmental impact, manufacturing processes, operation, maintenance, replacement, disposal, and liability

9-12.S.2.3. Students are able to analyze and describe the benefits, limitations, cost, and consequences involved in using, conserving, or recycling resources.

Examples: agriculture, energy


Core high school nature of science performance descriptors

Core High School Nature of SciencePerformance Descriptors


Core high school life earth science performance descriptors

Core High School Life/Earth SciencePerformance Descriptors


Core high school technology environment society performance descriptors

Core High School Technology, Environment, Society Performance Descriptors


Sources

SOURCES

http://www.animation-station.com/smileys/index.php?page=17

http://mff.dsisd.net/Environment/Cycles.htm

http://www.romanviii.co.uk/bp/nhpage.asp?pcat=about_us


Sources1

SOURCES

http://www.oldetimecooking.com/Images/Fruits/Apple.jpg

http://vilenski.org/science/safari/classifyall/eukaryotic.html

http://dustconnection.com/images/stories/cleaning_bucket_sm.jpg


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