Minjerribah is home to a high diversity of nationally and internationally threatened flora and fauna species, and ecological communities. At least four Environmental Protection and Biodiversity Conservation Act 1999 listed plant species have been recorded, including the endangered swamp daisy (Olearia hygrophila), and two endangered swamp orchid species (Phaius australis and Phaius bernaysii), as well as the vulnerable stinking cryptocarya (Cryptocarya foetida). The wallum wetland habitats of Quandamooka (Moreton Bay) support nationally endangered fish species, the Oxleyan pygmy perch (Nannoperca oxleyana), as well as four acid frog species (Crinia tinnula, Litoria olongburensis, Litoria cooloolensis and Litoria freycineti). The site further supports the internationally vulnerable water mouse (Xeromys myoides), the endangered swamp crayfish (Tenuibranchiurus glypticus) and endangered Illidge’s ant-blue butterfly (Acrodipsas illidgei).
The waters of Quandamooka support many rare and threatened marine species and habitat. The threatened loggerhead turtle (Caretta caretta), grey nurse shark (Carcharias taurus), the white shark (Carcharodon carcharias), whale shark (Rhincodon typus), Australian hump-back dolphin (Sousa sahulensis), dugong (Dugon dugon), manta ray (Mobula alfredi) and a further 13 species of whale and dolphin can be found in Quandamooka sea country. As Moreton Bay occurs at the southernmost limit of many tropical species and the northernmost limit of many temperate species, we are lucky enough to enjoy a diversity of coral species that is twice that of Hawaii or the Caribbean.
The Moreton Bay Ramsar site regularly supports more than 50,000 water birds, representing at least 43 species of shorebirds and 28 species of internationally migratory shorebirds.