Energy I
When there are more individuals being born that dying. A population is growing.
Population Growth
The number of individuals in a given area
What is population
"A biological community of interacting organisms and their physical environment."
Ecosystem
Lower jaw, uses to attack predators. Level 2 taxa.
What do we call the material at the bottom of the creek or river?
Substrate
A group of different species living in the same area
Community
"The concentration of individuals within a species in a specific geographic locale."
Population Density
The maximum population that an area can hold.
Carrying Capacity
What taxa is a caddisfly?
Taxa 1
What is urbanization?
it is when cities and population grow and take over rural areas. Natural streams become urban streams and they can sometimes become polluted.
It mostly goes into heat
Not related to density, can also limit populations. Examples:
-Weather
-Climate
-Storms
Density Independent Factors
Factors that limit a population; related to the density of the population (resources are used faster if population is longer).
-Food shortage
-Not enough water
-Not enough shelter
Density Dependent Factors
What taxa is a Dragonfly Nymph?
Taxa 2
What are Impervious surfaces?
Surfaces that are flat and smooth. Like concrete. Nothing stops the polluted water from rain getting into our rivers. It also causes rising water temperatures.
An energy pyramid that shows the trophic levels and how much energy is transferred between each level.
Bonus: How much energy is transferred between each level?
Biomass Pyramid
Bonus: 10%
A human is an _ strategist
K
What is a Pyramid of Numbers?
A pyramid that shows the total number of teh animals in each food chain.
Makes a case out of sticks and stones
Caddisfly
What is erosion, sedimentation, and embeddedness?
Erosion: Makes channel wider, brings rocks into the river
Sedimentation: Rocks and stuff that is in rivers
Embeddedness: Animals don't have any habitat because the rocks are so close together
What is the definition of Biomass?
Biomass is the mass of living biological organisms in a given area or ecosystem at a given time.
What is an energy pyramid
It shows how much energy is being transferred.
What is the difference between a non-native species and an invasive species.
An invasive species is bad for an ecosystem and non-native is not harmful. It is just from somewhere else.
What taxa is a Riffle Beetle?
Taxa 1
What is non-point pollution?
Bonus: What is an example of pollution from farms?
We can't trace were the pollution is coming from.
Bonus: Pesticides