Ch. 19.2 Ecology pp.368-372 - Mr. G's Biology stuff · Ch. 19.2 Ecology pp.368-372 Tolerance curve...

Ch. 19.2 Ecologypp.368-372

Habitat = where an organism lives

• Its home

• This includes both the biotic factors = living things andabiotic factors = non-living

• Abiotic factors affect performance of biotic factors

Where do you live?


Tolerance curve = graph of some biotic measure (D.V.) as it changes with respect to some abiotic factor (I.V.)

What is the abiotic factor?

What is the I.V.?

What is the biotic factor?

What is the D.V.?


Acclimation = adjusting to different abiotic condition

• “getting used-to the place”


Acclimation = adjusting to different abiotic condition

• “getting used-to the place”

Newmaximum


Conformers = organisms that cannot easily control their body as the abiotic conditions change

• Ectotherms = animals that change their temperature with the environment

– Cold-blooded : snakes, lizards, frogs, fish

Ecto = outside

Thermal = heat


Regulators = organisms that can control their body as environment changes

• Endotherms = organisms that maintain a constant body temperature

– Warm-blooded: mammals & birds

– Use energy from food to “burn” for heat (chemically)

Endo = inside

Thermal = heat


Movement: if conditions are not good, then move:

Dormant = slowing down to move in TIME

• Hibernate = mammals dormant in winter

• Brumate = ectothermsdormant in winter

• Estivate = dormant during the dry season


Movement: if conditions are not good, then move:

Migration = moving to find necessary resources

• Resource = anything an organism needs to survive

– Food, shelter, mating


Niche = what the organism does in the environment

• Its job, how it makes a living

• Fundamental niche = the range it could possibly use– I could eat insects and

reptiles too

• Realized niche = range it actually uses– I only eat mammals, birds,

fish, plants

– Limited by competition

What job do you do?


Generalist = organism that can live in many different environments or use many different resources

• Raccoon: lives anywhere it finds a hole, eats anything

Specialist = organism that can only live in specific places or eat specific things

• Panda: eats only bamboo

What job do you do?

Ch. 19.2 Ecology pp.368-372 - Mr. G's Biology stuff · Ch. 19.2 Ecology pp.368-372 Tolerance curve...

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