Rottnest’s Woodland habitat is a key habitat for 43 species of bush bird and is made up of two types of tree. These are the Rottnest Island Pine and the Rottnest Island Tea Tree. This website talks about threats that tourists may pose to local animals and the environment. It talks about how you can experience the island without causing harm to the area around you. I believe this site is credible as it is made by the islands official and it seems to only have an interest in helping the island return to its' former glory.
This website has lots of information about how Rottnest island formed and what challenges it has faced over it's many years of settlement. It talks about how over the years off settlement the island went from a 50% coverage of the island by woodland to only 4% today. It also talks about how due to disconnection from the main land the number of animals on the island went from 15,000 to only 140. I believe that this is a reliable source as it is made by abc news who is very credible.
This sites has information on threats toward tourists and the environment as well as threats toward quokkas. It talks about how on the island all water and other needed essentials are delivered from the main land and that the island isn't very self sustainable. Though it does inform the reader that the island is making changes to get it's own water treatment plant and as of 2015 it has multiple sustainable energy sources including solar panels and wind turbines. The website seems reliable as it is very informative and has many facts. It also is not asking for any donations so it wouldn't have a reason to exaggerate anything.