Roles in Ecosystems
Ecosystems that are planned and maintained by humans
Artificial Ecosystems
Four major abiotic factors that influence terrestrial ecosystems are:
Soil, Available Water, ________, Sunlight Availability
Temperature
The chemical environment of an aquatic ecosystem involves 3 main factors:
Type of Water, Dissolved Oxygen,________________
Other Dissolved Substances
a transition area between ecosystems
Ecotone
The decaying plant and animal matter that gives topsoil its black appearance
Humus
when the layers mix Oxygen-rich water from the surface then
replenishes the Oxygen-poor water at the depths due to ice melting.
Spring Turn-Over
MacArthur concluded that if organisms share the same niche at the same time and place, the weaker one will
Die/Occupy a different niche
They ensure the cycling of oxygen and carbon and they provide shelter, nesting sites, and food for many animals
Trees
The reason the blobfish looks so strange in pictures
Lack of Water pressure
An organism's niche is based on:
Food web placement, ______, Breeding area, Time its most active, and Abiotic requirements
Habitat
The type of deforestation that is mostly done in tropical areas to make room for agriculture and completely destroys the ecosystem
Slash and Burn
This is the area of a lake or pond in which there is open water and sufficient light for photosynthesis to occur
Limnetic Zone
the study of the interactions between the biotic and abiotic components of the biosphere
Ecology
This causes muskeg soils to not be very fertile but have lots of water.
Colder temperatures
The biological problem with thick ice and snow covering a lake
Plants no longer synthesize and oxygen levels drop/
Fish and organisms can die or become oxygen deprived