The presence of these fauna have made somewhat a complete food chain on the island. Insects feed from the plants, birds feed on the insects, seals feed on the birds, orcas feed on the seals and eventually the excretions help develop the plant life further on the island, making it a complete circle.
Currently, only scientists are allowed on the island, and that too only a few at a time, for a limited number of hours. Before entry to the island, each scientist is thoroughly checked so they won’t carry any foreign seeds in on themselves. An interesting incident happened when scientists found tomatoes growing on the island. Since that was a seed that couldn't have been transported via birds, investigation began. It was found out that the tomato plant was a result of a scientist taking an unauthorised dump on the island, dropping some tomato seeds. The plant was immediately removed so as to study the uninterrupted growth of the ecosystem.