Introducing
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Introducing. Eco. logy. Ecology. the study of the relationships between biotic and abiotic factors in environments. eco (G) root home, abode. log, -o, y (G) suffix study of. eco climate. eco system. eco tourism. epidemi ology. climat ology. zo ology. Ecosystem.

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Introducing

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Introducing

Introducing


Introducing

Eco

logy

Ecology

the study of the relationships between biotic and abiotic factors in environments

eco (G) root home, abode

log, -o, y (G) suffix study of

ecoclimate

ecosystem

ecotourism

epidemiology

climatology

zoology


Introducing

Ecosystem

includes all abiotic and biotic factors in one particular environment

Biotic Factors

Abiotic Factors

the living parts of an ecosystem

the nonliving parts of an ecosystem


Examples of ecosystems

Examples of Ecosystems

  • Lake- Rainforest

  • Swamps- drop of water

  • Desert- grasslands

  • Ocean- forest

  • Tundra- mountains

  • Taiga- pond

  • Savannah- river

  • Coral reef


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Bio

Biotic Factors

include plants, animals, fungi, microorganisms

bio(s), bio(t) (G) root life

biotechnology

biomechanics

biosphere

biofeedback

biostatistics

biography

biotic

biology


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Examples of Biotic Factors


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A

Abiotic Factors

include air, water, soil, temperature, wind, source of energy (usually sun)

a, an(G) prefix not, without

abiotic

amoral

amusia

atoxic


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Examples of Abiotic Factors


Pond ecosystem list examples of the biotic and abiotic factors in this image

Pond Ecosystem: List examples of the biotic and abiotic factors in this image.


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Examples of Ecosystems

Coral Reef in Belize

Mountains in Colorado

Arizona Desert


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Ecosystems

do not necessarily have clear boundaries due to biotic and abiotic changes

can change daily as things move from one ecosystem to another

Biotic

Abiotic

migration, seed dispersal

flood, erosion, drought


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Biotic Factors

interact with each other in complex ways

parasitism mutualism competition

such as

also interact with abiotic factors in the ecosystem

dependent upon water, minerals, temperature, light


Each ecosystem contains different habitats

Each ecosystem contains different habitats.

  • A habitat is the place where an organism lives. It supplies all the biotic and abiotic factors the organism needs to survive.

  • Ex. A rotting log is a perfect habitat for insects, fungi and worms.

  • Ex. A sea star finds food and comfortable temperatures in shallow ocean water.


How an organism acts within its ecosystem is called its niche

How an organism acts within its ecosystem is called its niche.

  • Examples of niches:

    • Some animals eat other organisms, and some eat only plants.

    • Some plants grow in sunny spots, while others need shade.

    • Worms and bacteria break down dead organisms for energy and recycle the nutrients into the ecosystem.


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Biome

a major regional or global biotic community, a super ecosystem, defined chiefly by the dominant forms of plant life and the prevailing climate


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Major Biomes of the World

desert

grassland

tropical rain forest

deciduous forest

coniferous forest

tundra

ocean


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biome

ecosystem

community

population

organism

organ system

organ

tissue

Levels of Organization

smallest unit of living things

large region with typical plants and animals that includes several ecosystems

group of different kinds of tissues working together

group of organs working together

all living and nonliving things interacting within a certain area

all organisms of the same kind living in one area

all interacting populations in an ecosystem

one individual living thing

group of similar cells organized to work together

cell


A community is made up of all the populations that live in an area at the same time

A community is made up of all the populations that live in an area at the same time.

  • Ex. A wetland community in North Carolina might include white-tailed deer, raccoons, black bears, turtles, snakes, fish and many insects. It would also include all the grasses, shrubs, and trees living in the same area.


Introducing

All the organisms of a species that live in the same place at the same time make up a population.


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Food Chains/ Webs


How does energy flow through an ecosystem

How does energy flow through an ecosystem?

The ability to do work or cause

change

What is energy?

Energy Pyramid

You lose 90% of your

energy when you go

to the next level.

Decomposers

eat what’s leftover.

Consumer: carnivores

(animal eaters)

100 units of energy

Consumer: herbivores

(plant eaters)

1,000 units of energy

10,000 units of energy

Producer: plants


Rule of 10

Only 10% of energy is transferred from one trophic level to the next.

Example:

It takes 100 kgs of plant materials (producers) to support 10 kgs of herbivores

It takes 10 kgs of herbivores to support 1 kg of 1st level predator

RULE OF 10


What is a food chain

What is a food chain?

The flow of energy of one organism eating another organism

Turn your energy pyramid into a food chain:

Producer Consumer 2nd level Decomposer

consumer

Lion

Bacteria

Grass

Zebras

S:\FACULTY\6th Science\Energy flow through an ecosystem.asf


What is a food web

What is a food web?

The pattern of overlapping food chains in an ecosystem

FOOD WEBS SHOW HOW MANY

ANIMALS ARE INTERCONNECTED BY

DIFFERENT PATHS.

FOOD WEBS show how plants

and animals are

connected in many ways to help them all survive.

FOOD CHAINS

follow just one path as animals find food.

S:\FACULTY\6th Science\Food web.asf

Food chains and food webs.asf


Make your own food web

Make your own food web.

  • Include at least 3 different food chains.

  • Include at least 3 illustrations.

  • Hawk

  • Phytoplankton

  • Algae

  • Mouse

  • Snake

  • Mosquito Larva

  • Fish

  • Grasshopper


Introducing

Bibliography

Arms. (1996). Environmental Science. Orlando,Florida: Holt, Rinehart and Winston, Inc.

McLaren, James E, and Rotundo, Lisa (1985). Heath Biology. D. C. Heath and Company.

The American Heritage Dictionary of the English Language, Third Edition. (1992). Houghton Mifflin Company.


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