Chapter Two - Ecosystems: What They Are

27 terms by ksinko210 

Create a new folder

Advertisement Upgrade to remove ads

ecosystems

a dynamic complex of plant, animal and microogranism communities and the nonliving environmental interacting as a functional unit within an explicit space.

biotic

of or relating to living organisms

abiotic

nonliving, chemical and physical factors

formation of ecosystems

The abiotic factors predict the climate, which affects the biotic factors that live in the ecosystem

biomass pyramid

structure obtained when comparing biomass of producers, herbivores & carnivores

ecological footprint

concept for measuring demand on earth's resources to satisfy human consumption and waster absorption - measured in acreage

food chain

transfer of energy and nutrients through organisms as they feed on each other

biodiversity

the diversity of plant and animal life in a particular habitat (or in the world as a whole)

tropic categories

producers, consumers and detritus feeders/decomposers

producers

capture energy from the sun

consumers

consume their energy. primary consumers feed on producers, secondary consumers feed on primary consumers

detritus feeders & decomposers

dead plant or animal material that certain animals feed on.

range of tolerance

the entire span that allows any growth at all

optimum condition

a certain level at which the organisms do best

limits of tolerance

the points at the high and low ends of the range of tolerance

zones of stress

between the optimal range and the high or low limit of tolerance

limiting factor

a factor that limits growth

biomes

tundra, coniferous forests, temperate forests, grassland, tropical rainforests, desert

Desert

little rainfall, extensive root system, animals adapt to having less water, extreme temperature changes

Tundra

plants have little time to grow, large mammals, low temperatures, small roots, low rainfall

Grassland

seasonal low rainfall, rich soils, height of grass depends on plants, good farmland

Coniferous Forest

low temperature, low rainfall, needle trees able to handle cold

Tropical Rainforest

High rainfall, warm weather, canopies (no life on forest floor), species live in the trees

Temperate Forest

trees have broad leaves, rainfall depends, low sunlight, fog

Two Laws of Sustainability

energy flow & nutrient recycling

Energy flows & efficiency

energy in ecosystems flow in one direction (need renewable resources). Higher up the biomass pyramid the more energy needed

Nutrient Recycling

recycling matter prevents accumulation of wastes & guarantees ecosystems will not run out of essential elements

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording

Create Set