3C review Flashcards
What is richness formula
number of different species
What is biodiversity index formula
number of species/# of organisms (the closer to one the more rich the area is)
What is the abundance formula
number of specific organisms/total # of organisms x 100
3 ways humans can hurt tree biodiversity
Deforestation
Hunting
Urban sprawl
What are non native species
A species that is living in a location where they don’t naturally exist
What are invasive species
An organism that causes ecological harm in a new environment where it isn’t native
What are characteristics of invasive species
They cause harm to the environment they invaded, they are non-native to the ecosystem so they disrupt the food web
Will all non native species become invasive
No, they only will if they adapt easily and quickly and also reproduce easily and fast
What are some ways humans enable the spread of invasive species
Shipping, pet trade, releasing, tourism
Where would you add Green roofs and vegetative walls and why
Its installed on the sides and roofs of the house. These places are out of the way and can get water easy
Benefits on green roofs and vegetative walls
Reduces storm water runoff
Reduces energy use
Improves air quality
Where would you add downspout disconnection and why
You can put it anywhere on the side of the house as it is used to redirect rainwater and water plants.
Benefits of downspout disconnection
Infiltration
Improved water quality
Improved treatment efficiency
Where would you add urban tree canopy and why
You would add it around your house in your grass or mulch, this is where trees grow best and it’s easy access to nutrients it needs
Benefits of urban tree canopy
Intercepts rainfall
Reduces air pollution
Increases soil carry capacity
Increases habitats
Reduces residential heating and cooling
