"wulguru cuspidata" lives in intertidal zones of open sandy beaches in northern queensland (australia). thousands, or even millions, of individuals aggregate in small, water-filled runnels created by waves. they are known to be able to tolerate extremes of temperature, high levels of sunlight, prolonged periods of shading (due to annual decomposition of seaweeds in the dry season), low oxygen levels, and cyanobacterial blooms.