Biomass Pyramids Watch

arvin_infinity
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#1
Report Thread starter 7 years ago
#1
Didnt understand when it doesnt come out pyramid-shaped..

According to CGP : An exeception is when theyre based on plant plankton. Cuz they have

a short life span and reproduce very quickly!!

?!??!?
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Eloades11
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(Original post by arvin_infinity)
Didnt understand when it doesnt come out pyramid-shaped..

According to CGP : An exeception is when theyre based on plant plankton. Cuz they have

a short life span and reproduce very quickly!!

?!??!?
Its basically explaining why plant plankton is at the bottom of the pyramid. I don't understand why the CPG says 'an exception is when they're based on plant plankton', an exception to what?

Each individual plant plankton has a tiny biomass. There are millions of them and they all reproduce quickly, allowing it to maintain a large population. Therefore for a biomass pyramid, the bottom of the pyramid will be relatively small compared to primary consumers ect..

If it was a pyramid of numbers, then because there are plenty of plankton they will always be the largest
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arvin_infinity
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(Original post by Eloades11)
Its basically explaining why plant plankton is at the bottom of the pyramid. I don't understand why the CPG says 'an exception is when they're based on plant plankton', an exception to what?

Each individual plant plankton has a tiny biomass. There are millions of them and they all reproduce quickly, allowing it to maintain a large population. Therefore for a biomass pyramid, the bottom of the pyramid will be relatively small compared to primary consumers ect..

If it was a pyramid of numbers, then because there are plenty of plankton they will always be the largest
An exception to pyramid-shaped..
Makes more sense now..I was confused by short life span and therefore a large population

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