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what are tropic levels
- - tropic levels show how energy flows in an ecosystem.
- - It can be arranged into pyramids
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what are the 3 main types of ecological pyramids
- - pyramid of numbers
- - pyramid of biomass
- - pyramid of energy
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pyramid of numbers in detail
- - The number of organisms is represented by each tropical level and is usually in a pyramid shape but can take on different shapes occasionally.
- - Btw the tropical level in the pyramid of numbers is not based on consumer levels or eating.
- - they will be less prey.
- - population in general
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pyramid of biomass
- - This is the total dried weight of the living materials. ( dehydrated or took the water out of everyone)
- - and the units are always mass/area
- - it can be inverted.
- - so, biomass pyramids are a snapshot in time. It does not account for the life cycle, life span, or how quickly they are living or dying.
- - For instance, Phytoplankton often have less biomass than zooplankton because phytoplankton are relatively short-lived and reproduce very quickly.
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pyramid of energy
- - We use energy when labelling the tropic levels, It will usually be Kilojoules or Kcals )
- - It can never be inverted because you would be violating the first law of thermodynamics which is energy cannot be created or destroyed but transformed to another form of energy.
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what is the difference between matter and energy
energy flows through the biosphere and matter cycles through the biosphere
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what are the two that try to manage wildlife populations ?
- - Alberta fish
- - wildlife and ducks unlimited
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Monocultures
- - This is the practice of cultivating one species instead of several.
- - For example, farmers planting the same species of wheat results in less biodiversity and more of a threat to the food web.
- -Historically we have had about 700 different species of plant but now the world only relies on about 20 wheat, and barely corn being the main 5
- - But we now have research farms to grow many varieties of there crops to obtain the best crop that can survive harsh weather or a pathogen
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food web
- - food webs are more complex than food chains because they showcase the transfer of energy in more detail.
- - The more diverse the web, the more stable the environment is.
- - Biodiversity is what determines if an ecosystem is more stable or not because they have variety across all of the tropical levels.
- - As well as less chances for organisms to actually go extinct
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