The islands in the group have been declared Special Nature Reserves under the South African Environmental Management: Protected Areas Act, No. 57 of 2003, and activities on the islands are therefore restricted to research and conservation management.[6][7] Further protection was granted when the area was declared a marine protected area in 2013.[8][9] The only human inhabitants of the islands are the staff of a meteorological and biological research station run by the South African National Antarctic Programme on Marion Island.
^Cite error: The named reference USGS was invoked but never defined (see the help page).
^Smith, V. R.; Steenkamp, Marianna (November 1990). "Climatic change and its ecological implications at a subantarctic island". Oecologia. 85: 14–24. doi:10.1007/BF00317338.
^Greve, Michelle; Mathakutha, Rabia; Steyn, Christien; Chown, Steven L. (2017). "Terrestrial invasions on sub-Antarctic Marion and Prince Edward Islands". Bothalia - African Biodiversity & Conservation. 47 (2): 1–21. doi:10.4102/abc.v47i2.2143. hdl:2263/66089.
^Crawford, R. J. M.; Cooper, J. (2003). "Conserving Surface-nesting Seabirds at the Prince Edward Islands: The Roles of Research, Monitoring and Legislation". African Journal of Marine Science. 25 (1): 416–425. doi:10.2989/18142320309504031.