I am presuming they were working on the principle that if you removed that grouip of animals from the ecosystem then how badly would it be affected. Insects then definitely get higher as they are a large food source. Primates etc would be very low although humans stuff up the environment so much that get a rid of them and there would be huge change for good (god damn I'm becoming a tree hugging hippee).
Sharks are the best in my opinion, I get to dive with them a fair bit around Sydneys swimming beaches (that'll scare you) and they are probably the most honest animals on the planet...you piss them off and they are hungry they eat you! You leave them alone and they do their own thing.
I am tryinf to get some good video of the Grey Nurse sharks off Maroubra (when I get some time) and I have been told that I can get $1000US per second if I get video of them feeding. I am not quite sure how brave I am about that!
Go the sharks, go snakes.......less snakes more rats/mice/gerbils etc etc
Cheers Hawkeye
