What is a human impact
no proper definition
maybe human impacted environment is better
What is sustainability
+ what is it a combination of
capable of maintained at a steady level without exhausing natural resources or causing severe ecological damage.
combination of
social accepability
economic viability
environmental suitability
What is ecosystem integrity
Integrity -the capacity to support and maintain the things, feeds the ecosyst functon. The ability of the system to maintain the function
What is ecosystem function
Function - what we get out of the ecosyst, can be carbon sequestation, primary and secondary energy
Think of it as what were getting out of it, or contributing to it
What is the major threat of expanding human pop?
2 things it leads to
resource aquisition
which leads to
habitat distruction - elimination of habitat
habitat alteration - global warming, fragmentation
How does the alteration made by beavers differ from habitati alterations made by humans
beavers are considered natural
Beavers use natural resources
their dams alter env in a way that benifits many more species?