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Okay the question is:

Why would there be differences in the pesticide levels found in different species? Atlantic Puffin (feeds on small fish) and its pesticide levels are lower compared to Double-crested Cormorant (fees on larger fish) and Leach's Storm-Petrel (feeds on small organisms near the surface of the water), why would this be?

  • PLEASE! -

    What does your book say about concentrations of pesticides in different species? Is it possible that these pesticides become more concentrated the higher up the food chain the species is?

  • PLEASE! -

    It doesn't say anything. And Leach's Storm-Petrel is in the second trophic level like Atlantic Puffin, but the Leach's Storm Petrel still have a higher level of pesticide.

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