Ecosystem Ecology
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
---|---|---|---|---|---|
Ecosystem | a particular location on Earth distinguished by its particular mix of interacting biotic and abiotic components
🗑
|
||||
Ecosystem boundaries | the different biotic and abiotic components that distinguish between neighboring ecosystems; they may/may not be well-defined
🗑
|
||||
Herbivore | organisms that eat plants
🗑
|
||||
Carnivore | organisms that eat other animals
🗑
|
||||
Producer | organism that makes its own food
🗑
|
||||
Autotroph | an organism that makes its own food
🗑
|
||||
Photosynthesis | the process whereby solar energy is converted into chemical energy
🗑
|
||||
Photosynthesis equation | energy + 6 CO2 + 6 H2O yields 1 C6H12O6 + 6 O2
🗑
|
||||
Cellular Respiration | the opposite reaction to photosynthesis whereby organisms convert chemical energy into energy they can use for cellular processes
🗑
|
||||
Cellular Respiration equation | 1 C6H12O6 + 6 O2 yields energy + 6 CO2 + 6 H2O
🗑
|
||||
Consumers | organisms that must consume other organisms for energy
🗑
|
||||
Heterotrophs | organisms that must consume other organisms for energy
🗑
|
||||
Primary Consumers | herbivores; consumers that eat producers
🗑
|
||||
Secondary Consumers | carnivores that eat primary consumers
🗑
|
||||
Tertiary Consumers | carnivores that eat secondary consumers
🗑
|
||||
Trophic Level | the successive levels of organisms that consume one another; producers eaten by primary consumer eaten by secondary consumer, etc. Each is a different energy level in a food chain
🗑
|
||||
Food Chain | the sequence of consumption from producers through tertiary consumers
🗑
|
||||
Food Web | a series of interconnected food chains in an ecosystem
🗑
|
||||
Omnivores | operate at several trophic levels because they consume both autotrophs and heterotrophs
🗑
|
||||
Trophe | Greek word meaning nourishment; foundation for words such as autotrophs, heterotrophs, and trophic levels
🗑
|
||||
Scavengers | carnivores that eat dead animals
🗑
|
||||
Detritivores | organisms that break down dead tissue and waste products
🗑
|
||||
Decomposers | the fungi and bacteria that complete the breakdown process by recycling the nutrients from dead tissues and wastes back into the ecosystem
🗑
|
||||
Ecosystem Productivity | the amount of energy available in an ecosystem determines how much life the ecosystem can support
🗑
|
||||
GPP (Gross Primary Productivity) | the total amount of solar energy the producers in an ecosystem capture via photosynthesis over a given amount of time; unit is kg Carbon taken up per square meter per day
🗑
|
||||
NPP (Net Primary Productivity) | the total energy captured minus the energy used by the producers in an ecosystem; measures the rate at which biomass is produced over a given time
🗑
|
||||
GPP Efficiency | 1% of sunlight is captured and turned into chemical energy; 99% is lost as heat
🗑
|
||||
NPP Efficiency | 25 – 50% of GPP; 60% of GPP is lost due to cellular respiration & 40% of GPP is used for growth and reproduction
🗑
|
||||
Biomass | the total mass of all living matter in a specific area; used to measure the energy in an ecosystem
🗑
|
||||
Standing Crop | the amount of biomass present in an ecosystem at a particular time
🗑
|
||||
Ecological Efficiency | the portion of consumed energy that can be passed from one tophic level to the next; average is 10% with it ranging from 5 – 20%
🗑
|
||||
Trophic Pyramid | A graphical representation of the biomass (measured in Joules) for each trophic level in an ecosystem; looks like stacked bar graphs
🗑
|
||||
Biosphere | the region of our planet where life resides; 12-mile thick shell from the deepest part of the ocean to the highest mountain peak
🗑
|
||||
Biogeochemical cycles | the movement of matter within and between ecosystems that involve biological, geological, and chemical processes
🗑
|
||||
The Major Biogeochemical Cycles | hydrologic (water),Carbon, Nitrogen, Phosphorus, and other macronutrients (calcium, magnesium, potassium and sulfur)
🗑
|
||||
Pools | the components that contain matter in a biogeochemical cycle; example: air, water, organisms
🗑
|
||||
Flows | the processes that move matter between pools
🗑
|
||||
Hydrologic Cycle | the movement of water through the biosphere; the water cycle; evaporation from surface water to condensation in clouds to precipitation from clouds
🗑
|
||||
Transpiration | the process where plants lose water from their leaves
🗑
|
||||
Evaportranspiration | the combined amount of evaporation and transpiration
🗑
|
||||
Runoff | after a rain, water move across the land surface and into streams and lakes
🗑
|
||||
Carbon Cycle | the movement of carbon from the atmosphere to producers to consumers to decomposers and back
🗑
|
||||
Six Processes that drive the carbon cycle | photosynthesis, respiration, exchange, sedimentation and burial, extraction, and combustion
🗑
|
||||
Carbon Exchange | CO2 in atmosphere is dissolved in the water
🗑
|
||||
Carbon Sedimentation | CO2 that is dissolved in water combines with calcium to form calcium carbonate (CaCO3); this precipitates out, settles to the ocean floor and forms a sedimentary rock called limestone
🗑
|
||||
Carbon Extraction | when humans extract carbon substances like oil and coal from the ground
🗑
|
||||
Combustion | the burning of hydrocarbons that releases CO2 and H2O into the air
🗑
|
||||
Macronutrients | six key elements needed in relatively large quantities by living organisms; nitrogen, phosphorus, potassium, calcium, magnesium, and sulfur
🗑
|
||||
Limiting Nutrient | a nutrient that can limit the growth of an organism if there isn’t enough (nitrogen & phosphorus)
🗑
|
||||
Nitrogen Cycle | the movement of nitrogen from the atmosphere to through several changes in the soil, then into a plant and then into the atmosphere
🗑
|
||||
Nitrogen Fixation | the process by which atmospheric N2 gas is converted into a form that plants can use; biotic process make NH3 and abiotic process make NO3 ions
🗑
|
||||
Assimilation | producers take up NH4 ions or NO3 ions from the soil
🗑
|
||||
Ammonification | decomposers in soil and water break down nitrogen compounds into ammonium, NH4+
🗑
|
||||
Nitrification | bacteria convert ammonium (NH4+) into nitrite (NO2-) then into nitrate (NO3-)
🗑
|
||||
Denitrification | bacteria in oxygen-poor environments convert nitrate (NO3-) into N2O then into N2
🗑
|
||||
Leaching | water moving through the soil takes the nitrates with it
🗑
|
||||
Algal Bloom | A rapid growth of algae when excess phosphorus is introduced into an aquatic system
🗑
|
||||
Hypoxic Condition | a low oxygen condition in water that happens after an algal bloom dies and initiates a massive amount of decomposition which uses up all available oxygen; creates a hypoxic dead-zone in water
🗑
|
||||
Disturbance | An event caused by physical, chemical, or biological agents that results in changes in population size or community composition
🗑
|
||||
Watershed | all of the land in a given landscape that drains into a particular stream, river, lake or wetland
🗑
|
||||
Resistance of an Ecosystem | a measure of how much a disturbance can affect the flows of energy and matter in an ecosystem; stated in terms of high or low resistance
🗑
|
||||
Resilience of an Ecosystem | the rate at which an ecosystem returns to its original state after a disturbance
🗑
|
||||
Restoration Ecology | the study of restoring damaged ecosystems
🗑
|
||||
Intermediate Disturbance Hypothesis | ecosystems experiencing intermediate levels of disturbance are more diverse than those with high or low disturbance levels
🗑
|
||||
Instrumental Value | a species that has worth to humans because it can be used to accomplish a goal
🗑
|
||||
Intrinsic Value | A species or ecosystem that has worth independent of any benefit it may have for humans
🗑
|
||||
The Five Categories of Ecosystem Services | provisions, regulating services, support systems, resilience, and cultural services
🗑
|
||||
Provisions | an ecosystem service that humans can use directly (lumber, good, medicinal plants, etc.)
🗑
|
||||
Regulating Services | an ecosystem service where a natural ecosystem helps to regulate environmental conditions
🗑
|
||||
Support Services | an ecosystem service that supports a human activity (bees pollinate our crops)
🗑
|
||||
Resilience | an ecosystem service that ensures an ecosystem will continue to provide benefits to humans
🗑
|
||||
Cultural Services | an ecosystem service that provides cultural or aesthetic benefits to many people
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
ehsanip
Popular Science sets