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Human activities have a high impact on ecosystems and understanding these impacts is crucial for conservation of species and ecosystems.

Long interaction chain linking forests to manta rays (Fig. 1 from McCauley et al. 2012)

Understand the dynamics occurring in the Pacific Atol system by simplifying its components and then compare it to the effects of human activities.

• What are the minimal components of the Pacific Atol system needed to understand its dynamics?
• How does human activities influence the interaction chain found in the human-free Atol?

• McCauley et al (2012) From wing to wing: the persistence of long ecological interaction chains in less-disturbed ecosystems Scientific Reports 2:409 DOI: 10.1038/srep00409 link