Ecosystems
Organisms fighting over a resource like food or shelter; limits population size.
What is competition?
An area that shares a combination of average yearly climate that determines plant & animal species there.
What is biome?
Drives the Hydrologic Cycle.
What is energy from the sun.
Producers produce 65,000 Joules of energy. What is the energy available from the primary consumers?
What is 6,500 Joules.
Total rate of photosynthesis in a given area.
What is gross primary productivity.
Relationship that benefits both organisms (example coral reef).
What is mutualism?
Two characteristics that define a biome.
What is average yearly temperature and precipitation?
A carbon sink/reservoir that stores more carbon than it releases.
What is the ocean (algae & sediments), plants, soil.
Each time energy is transferred, some of it is lost as heat.
What is the Second Law of Thermodynamics.
Equation for calculating primary productivity.
What is NPP = GPP - RL.
All living & nonliving things in an area (plants, animals, rocks, soil, water, air)
What is Ecosystems.
This biome's subsoil is permafrost, which prevent deep-rooted plants from growing. Additionally there is low precipitation.
What is tundra?
Critical nutrient in the atmosphere that is unusable by plants and animals in that form.
What is N2 gas.
Difference between a food chain and food web.
What is food chain is just one path of energy. Food webs have at least two different interconnected food chains.
What is 1%.
________ use a host organism for energy, often without killing the host & often living inside the host.
What is parasites?
This aquatic biome is so large that even though it has the lowest productivity/area it produces a lot of earth's O2 and absorb a lot of atmospheric CO2.
What is Open Ocean?
The main nitrogen reservoir.
What is the atmosphere.
Term that describes the removal or addition of a top predator has a ripple effect down through lower trophic levels.
What is trophic cascade.
GPP of an ecosystem is 5.5 kgC/m2/yr and the energy needed by the producers for their own respiration is 4.7 kgC/m2/yr. What is the NPP for this ecosystem?
What is 0.8 kgC/m2/yr.
When different species use the same resource in different ways to reduce competition.
What is resource partitioning?
This biome has grasses and non woody flowering plants. The NPP is limited by temperature and precipitation.
What is temperate grassland?
Because this element cycles so slowly, it is a limiting nutrient for plant growth in ecosystems.
What is Phosphorus.
Secondary consumers have 55 kg of biomass. What amount of biomass is needed at the producer level to support these secondary consumers?
What is 5,500 kg.
Three factors that lead to high NPP thus greater biodiversity.
What is water availability, higher temperature, and nutrient availability.