The bearded dragon, latin name Pogona vitticeps hails from Australia, and in particular the drier regions of this
exciting and varied country.
According to The MacDonald Encyclopedia Of Amphibians And Reptiles (by Massimo Capula), gives the following information...
"Coastal... forests to dry interior thorny scrublands".
I have been led to believe that these lizards may be found mainly in rocky, sandy locations though may be observed nearer human habitation.
Both in the wild and in captivity they are semi-arboreal and climbing instruments are used by them on a regular basis.
Whilst Australian bearded dragons can be kept together in groups without too much trouble, adult males may fight in a confined space for a territory.
Many females will live together happily.
It therefore follows that if you are keeping a number of bearded dragon lizards together, it is a good idea to provide a number of branches and rocks to climb on or there
may be squabbling for the "best" vantage-points.
These are likely to be the highest, and two or more adult males may fight seriously to gain control of this branch.
Having a number of climbing reas gives them choice and so reduces the chance of fighting amonst your bearded dragon lizards.
In captivity we are therefore looking to create a dry "desert-like" environment, with places to climb (and hide), though fresh water should always be available for drinking.