If you want to find out what biologically related data is within a defined area, then area reports in the Spatial Portal can deliver.
An area can be defined by any one of 15 different options. For example, you can use the gazetteer to lookup say “Royal National Park” and then use that as the defined area. You can also digitize the boundaries of the area in the Spatial Portal if there none of the other area defining options are applicable. Note that in the Spatial Portal, “area” can mean multiple polygons.
Once the area is defined, which you can define ‘on the fly’, you can generate an area report containing lists of all species, endemic species, invasive species, species with a conservation status, lifeforms, occurrence records, publications, gazetteer points, points of interest and more.
There are two types of report, an onscreen report that is quick and a PDF report that isn’t. The onscreen report contains most of the details in the PDF report but it is interactive and you will only see what information you select. You can download any of the lists in the report. Depending on the size of the area, the PDF report (which can be well over 100 pages) can take considerable time to generate as a lot of information needs to be gathered and formatted. In short, if you want to know much of what the Atlas knows an area, area reports are a great solution.
More information on Area Reports.