Mission Possible - Saving the Galapagos

The Task is to complete all five missions below.  

Mission 1:  You will become an expert on the flora and fauna of the Galapagos Islands by assisting your fellow secret agents in creating an interactive field guide. You will collect data on organisms assigned to you by the Mission Specialist. 

Mission 2:  Now take the interactive field guide assembled by your fellow agents and use it to create a Galapagos food web using all the organisms.
 
Mission 3:  After completing mission two, you must check in with the Mission Specialist for your next assignment pertaining to the gathering of information and data on global changes affecting the Galapagos Islands. 

Mission 4:  Check in once again with Mission Specialist.  You will now be responsible for creating a Public Service Announcement (PSA) regarding your plans to save the organism selected by your team as the one most deserving of your attention.

Mission 5:  Using the food web created during Mission 2, simulate a trophic cascade on your web caused by the global change you researched for your PSA.