Today we have Part One of reader Chris Taylor’s photos from Queensland. His captions are indented, and you can enlarge the photos by clicking on them.
After having been unable to travel for the last five years, I was at last able to get away again, so my partner and I decided to escape the cold of Canberra’s winter and travel up to tropical North Queensland. We had arranged to go out to the Bush Heritage Australia reserve at Yourka again, but before going there we had some time to visit the rainforest near the coast. After flying in to Cairns, we drove up to our first campsite in Mossman.
Above the town, the pristine Mossman River flows through a steep sided gorge.

The rainforest here is said to be the oldest on earth. Many ancient plant families are preserved here, including cycads, ferns and primitive conifers. We had a couple of short walks along the paths into the rainforest.
Our campground was on the banks of the Mossman River. A sign in the site was slightly alarming!


I’m not sure how often the crocodiles get up into the town.
But a few days later we travelled the few kilometres further north to the Daintree River, and there were plenty of crocodiles to be seen. There are two species of crocodile found in Australia, the smaller Freshwater Crocodile, and the larger Saltwater species.
This is a Saltwater Crocodile, Crocodylus porosus:

On the Daintree River, a dominant male will rule a territory of many kilometres of the river, and will keep a harem of females. The male will also tolerate a number of juvenile males until they are three or four years old, at which time they will be driven out of the area. Once fully grown they may return to the river to challenge the resident male for his territory and females.
This is a young male. He was only about 2.5m in length.

This is a female of breeding age. She is regulating her body temperature by entering the water, and gaping her mouth to the wind. There are many blood vessels in the roof of the mouth and this cools the blood going to her brain.

There is some concern in Queensland that climate change is having a big adverse effect on the crocodiles. The sex of the hatchling is determined by the temperature: less than 32oC produces males, but over 34oC the litter is predominantly female. This warming, together with the effects of the flooding caused by Tropical Cyclone Jasper, has led to no young crocodiles surviving in the Daintree for two years.
We also saw the dominant male of this part of the river, a 5m long, 500kg animal known as Scarface.

He is thought to be at least 70 years old, and carries witness to many fights he has had to retain his kingdom. He has lost most if not all of his teeth, but is still able to feed, often on carrion that is carried down the river.

Lining the river banks are stands of Mangrove trees of different species. Here the mangroves are combining to form an island in the river. There are three different forms that the roots take to enable the tree to live in the brackish water. All three can be seen in this picture. Most obvious is the prop or stilt root system, where many roots branch off from the trunk of the tree and spread out to form a strong supporting network. Then there are some that have Buttress roots flaring out from the trunk. These sometimes bend up above the surface before returning to the mud, and are called knee roots. Lastly there are the roots that stick up pencil-like structures known as pneumatophores. All of these are mechanisms that help the plant to regulate oxygen, salt and water intake and removal, and all help to stabilise the mud around the plant, as well as providing a habitat for fish and invertebrates to breed.

In amongst the mangroves were other creatures. This is a Little Pied Cormorant, Microcarbo melanoleucos, a very common bird around Australia.

Further upstream in one of mangroves was a Scrub Python, Simalia kinghorni:

This is Australia’s largest snake, growing to 5m and 20kg., but it is quite at home in the trees. It was resting in the sun when we first encountered it, but soon began to move around in the tree tops. This one was probably approaching the 3m mark. It was fascinating to see how it was able to span the gaps in the branches.

Back at Daintree we saw this White-Lipped Tree Frog, Litoria infrafrenata. This is the largest tree frog in the world. There are other larger frogs but these are unable to climb:

Back at Mossman, we photographed a Giant Orb Weaving spider, Nephila pilipes. This individual had a span across her legs of about 150mm, and a body of 25mm. Her web was rather more that 1m across!

Also in the campground were a number of Orange-footed Scrub Fowl, Megapodius reinwardt. These birds belong to the Megapodidae, along with the Brush Turkey that I will describe later:

There were also Olive-backed Sunbirds, Cinnyris jugularis, flying around the site. This one is a female emerging from the hanging nest made from woven grasses fibres and bark. It is the female who does most of the work of raising the two eggs laid in the nest:

There was also a spectacular display of Red Jade Vine, Mucuna bennettii. Introduced into Australia, this member of the Legume family is a native of Papua New Guinea:

Returning to Cairns for a night we were able to go for a swim in a nearby rainforest stream at the (crocodile free) Crystal Cascades:

Next morning, while waiting to board the bus to Atherton, we went to a café for breakfast. A cheeky Willie Wagtail, Rhipidura leucophrys, decided to join us in the hope of getting crumbs of food from the table.

Continued in Part 2.