Definitions
This is a community of living organisms (biotic factors) interacting with their nonliving physical environment (abiotic factors) within a specific area
What is an ecosystem?
The total amount of energy that enters the ecosystem through photosynthesis.
Gross Primary Productivity
This is a series of events where one organism eats another organism to gain energy
What is a food chain?
This is the entire range of environmental conditions that a species could live in
What is a fundamental niche?
Short-term changes in temperature and precipitation.
Long-term changes in temperature and precipitation.
What is weather and climate?
This is the natural environment where an organism lives and gets the food, water, shelter, and space it needs to survive
What is a habitat?
The amount of energy that remains after ________ is called ________.
Respiration
Net Primary Productivity
This consists of many overlapping food chains in an ecosystem
What is a food web?
This is where a species actually lives
What is a realized niche?
This is where global temperatures rise above average over time.
What is global warming?
This is the specific role or "job" an organism plays within an ecosystem
What is a niche?
Find the GPP if a wetland has an NPP of 20 kg C/m2/year and a respiration rate of 6 kg C/m2/year.
GPP is 26 kg C/m2/year
In a food chain, the arrows point in this direction
What is the direction of energy flow?
An energy pyramid shows the amount of energy that moves from one level to another in a food web. What is the name of the rule that states only about ____% of usable energy is passed on to the next trophic level?
hat is the 10% Rule of Energy Transfer?
The natural process that keeps the Earth warm.
What is the Greenhouse Effect?
This is the term for a group of organisms of the same species living in the same area.
What is a population?
Increased atmospheric CO2 is an example of a ___________ effect on NPP.
climate change
This is the position an organism occupies in a food web
What is a trophic level?
The base of an energy pyramid, with the most energy, is made up of these organisms.
What are producers?
The primary cause of deforestation
What is agriculture?
This is a group of different populations that live in the same area.
What is a community?
Producers only catch about what percent of available solar energy? AND, what is this known as?
1%
GPP
If a Secondary Consumer level contains 300 kg of biomass and the Tertiary Consumer level contains 50 kg, what is the actual percentage of efficiency between these two levels?
What is 16.7%?
This process allows species to coexist by reducing competition for resources by using resources in different ways or at different times.
What is niche partitioning?
Excess greenhouse gases in the atmosphere get trapped in the atmosphere and cause global warming. What do we call this?
What is the Enhanced Greenhouse Effect?