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Re: T.Rex Feather Skepticism
2005/9/15, frank bliss <firstname.lastname@example.org>:
> Didn't know that but are the zooplankton strictly the predatory
> pressure on the phytoplankton?
They are phytoplankton predator too. But there are whales, whale
sharks and others.
> I doubt it and at such a base trophic level even the zooplankton are predated
> upon by
> others so really they are prey too.
Surely zooplankton are predated by others organisms, but it doesn't
alter the fact that phytoplankton biomass - in a given time - could be
lesser than its predator biomass.
> I was looking more for a terrestrial analogue of predator biomass exceeding
> biomass in a surviving viable community.
Well, in a terrestrial ecossystem, I'm not sure, but I think that
there is no instance of a higher trophic level biomass being greater
than a lower one.
> Certainly the numbers of predatory dinosaurs were far less than their
At least as a total biomass... The *number* of individuals could be
greater than those of preys.