Biome Review

What biome is this?

• desert

http://www.nicisoft.com/images/ex/desert-pictures/desert-picture-1.jpg

What biome is this?

• Tundra

http://www.ucmp.berkeley.edu/glossary/gloss5/biome/images/tundra.jpg

What biome is this?

• Temperate or• Deciduous

forest

http://nebraska.sierraclub.org/movalley/images/Hitchcock-Forest.jpg

What biome is this?• Rain forest

                                                                                                                                  

http://rainforests.mongabay.com/0402.htm

Levels of organization of life

• Cell• Smallest unit that is alive• 2 or more working together makes• Tissue, for example, muscle tissue• 2 or more types of tissue working

together makes• Organ, for example, your heart

• 2 or more organs working together makes

• An organ system• For example circulatory system• 2 or more organ systems working

together makes• An organism… like• You, or a monkey• 2 or more monkeys of the same

species makes• Population

• Which is all of the monkeys in one area

• All the monkeys, all the trees, all the birds, and bees makes

• Community • Add in the nonliving factors in an

area, and you have• An ecosystem• Put all the ecosystems together in

one area and you have• Biomes

• Put all the biomes together and you have

• Biosphere• Earth • Our planet

ECOLOGY• Study of how living (biotic) and

nonliving (abiotic) factors interact• List 7 abiotic factors that determine if

an elephant can survive in an area:• Amt of light• Temperature• Amt of O2

• Space• Amt of water• pH (amt of acid)• Substrate (soil and rock type)

Sometimes, our world does not match the needs

of wild creatures

Niche• Pronounced NEECH OR NEESH• Niche: the role or job of an

organism in its environment• Bees have many niches,• Pollinators• Food for birds, make honey for

other organisms• Barn owl niche: • eats rodents

Habitat

• Where an organism lives• Owl habitat?• Fish habitat?• Deer?

Decomposer

• On organism that breaks down dead material into small molecules so plants can reuse the material the dead organism was made of

• Original recyclers• Saprobes, saprophytes• Write in examples: mushrooms,

mold, bacteria, worms, insects

Autotroph

• An organism that does photosynthesis to get energy

• Also called a producer or a green plant

Heterotroph

• An organism that eats for energy

• Also called a consumer

Food web

• Better than a chain, because it shows more interactions between organisms

• Always starts with the producer• Decomposers are there, but not

shown

Create a food web

• Using organisms from our biome• Put grass, trees and berries on the

bottom of the space• What eats them? Write it above,

and connect with an arrow going into the belly of the eater (consumer)

Energy pyramid

• Shows flow of energy in an ecosystem

• 90% of the energy is lost as heat• 10% of the energy is given to the

next level (it got eaten)• Source of energy is the sun• Decomposers are outside the

pyramid

Energy pyramid

decomposer

3° consumer

Producer

2° consumer

1° consumer

sun

Amount of energy available

• Bottom layer is 100%

• Write in the rest

decomposer

3° consumer

Producer

2° consumer

1° consumer

sun

Use the creatures from your food web to create a

4 level energy pyramid• Include the amount % of energy at

each level

• Work on worksheet

Limiting Factors

• things in the environment that keeps the population from exploding

• Example: frogs lay 100-300 eggs• Why are we not flooded with frogs?• Give examples:

1980

1982

1982

Dead elk movie (after eruption)

• http://faculty.washington.edu/moral/mount.html

2002- heavily pumiced slope

Lichen

SUCCESSION

• gradual change in plants and animals over a long period of time

Primary Succession • o       starts with rock (no soil)….. volcano,

bedrock• o       weather and erosion crack off pieces

of rock forming _soil_• o       lichens and mosses grow • o      called ____PIONEER___ COMMUNITY

(first ones there)• o       leads to _SHRUBS AND SMALL

BUSHES• o       then PINE TREES• o       then HARDWOOD forest… • called the _CLIMAX__ COMMUNITY

Secondary Succession

•    starts with SOIL•   examples: after a farmer stops

PLOWING A FIELD, AFTER a tornado, abandoned parking lots or yards, lakes/ponds filling in

• happens faster than 1° succession