ecosystem portfolio

deciduous forest                            

biotic-living or once living

the plants , grass & tress

abiotic-non living

the leaves, sticks & drit

carrying capactty and changes in population

The definition is expanded to include not degrading our cultural and social environments and not harming the physical environment in ways that would adversely affect future generations.

limiting factors

The primary productivity of an ecosystem can be reduced when there is an insufficient supply of a particular nutrient. Ecologists call such substances limiting nutrients.

predator/prey relationships

Energy Roles

Food Chains/Webs

Trophic Levels and energy Pyramids

Comment Stream