Fossil pollen records indicate closed forest covered most of Australia between 50 to 100 million years ago.

Many species are able to survive in open forests and woodlands, although a few are restricted to closed forest.

The closed forest has two areas, named area one and area two.

There are also many near the waterfalls and in the closed forests.

Very little closed forest can be found and this is mainly of the gallery forest type along waterways.

However, competition and disease have likely led to fewer baboons in closed forests.

After the death of 90% of the native population around 500 years ago, grasslands, savanna, and woodlands succeeded to closed forest.

The large closed forest is typical of the northern districts and is widespread in about 12% of the area.

It was probably used to convert closed forests into more open ecosystems favourable to game animals.

P. tarminiana invades both open and closed forest in Hawai'i.