Wikipedia

Macquarie Island

Macquarie Island is a subantarctic island in the south-western Pacific Ocean, about halfway between New Zealand and Antarctica.[1] It has been governed as a part of Tasmania, Australia, since 1880. It became a Tasmanian State Reserve in 1978 and was inscribed as a UNESCO World Heritage Site in 1997.

Macquarie Island
Nickname: Macca
Satellite photo of Macquarie Island
Macquarie Island is located in Oceania
Macquarie Island
Macquarie Island
Location in the Southwestern Pacific Ocean
Geography
LocationSouthwestern Pacific Ocean
Coordinates54°38′S 158°52′E / 54.63°S 158.86°E / -54.63; 158.86
Area128 km2 (49 sq mi)
Length35 km (21.7 mi)
Width5 km (3.1 mi)
Highest elevation410 m (1350 ft)
Highest point
  • Mount Hamilton
  • Mount Fletcher
Administration
StateTasmania
LGAHuon Valley Council
Demographics
PopulationNo permanent inhabitants
Additional information
Time zone
 • Summer (DST)
CriteriaNatural: vii, viii
Reference629
Inscription1997 (21st Session)

Macquarie Island is an exposed portion of the Macquarie Ridge and is located where the Australian Plate meets the Pacific Plate.

The island is home to the entire royal penguin population during their annual nesting season. Ecologically, the island is part of the Antipodes Subantarctic Islands tundra ecoregion.

History

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19th century

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Frederick Hasselborough, an Australian, discovered the uninhabited island on 11 July 1810, while looking for new sealing grounds.[2] He claimed Macquarie Island for Britain and annexed it to the colony of New South Wales in 1810. The island was named for Colonel Lachlan Macquarie, Governor of New South Wales from 1810 to 1821. Hasselborough reported a wreck "of ancient design", which has given rise to speculation that the island may have been visited before by Polynesians or others.[3] In the same year, Captain Smith described in more detail what is presumably the same wreck and incorrectly speculated that it belonged to French explorer Jean-François de Galaup, comte de Lapérouse: "several pieces of wreck of a large vessel on this Island, apparently very old and high up in the grass, probably the remains of the ship of the unfortunate De la Perouse".[4]

Between 1810 and 1919, seals and then penguins were hunted for their oil almost to the point of extinction.[2] Sealers' relics include iron try pots, casks, hut ruins, graves and inscriptions. During that time, 144 vessel visits are recorded, 12 of which ended in shipwreck.[5] The conditions on the island and the surrounding seas were considered so harsh that a plan to use it as a penal settlement was rejected.[3]

Richard Siddins and his crew were shipwrecked in Hasselborough Bay on 11 June 1812. Joseph Underwood sent the ship Elizabeth and Mary to the island to rescue the remaining crew. The Russian explorer Fabian Gottlieb von Bellingshausen explored the area for Alexander I of Russia in 1820, and produced the first map of Macquarie Island. Bellingshausen landed on the island on 28 November 1820, defined its geographical position and traded his rum and food for the island's fauna with the sealers.

In 1877, the crew of the schooner Bencleugh was shipwrecked on the island for four months; folklore says they came to believe there was hidden treasure on the island.[6] The ship's owner, John Sen Inches Thomson, wrote a book on his sea travels, including his time on the island. The book, written in 1912, was entitled Voyages and Wanderings In Far-off Seas and Lands.[6]

Tasmania–New Zealand seal skin dispute

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Macquarie Island was made a constituent part of Tasmania on 17 June 1880 through Letters Patent for the Governor of Tasmania.[7]

In 1890, the Colony of New Zealand wrote to Lord Onslow (the Governor of New Zealand), Philip Fysh (the Premier of Tasmania), and the Lord Knutsford (the Secretary of State for the Colonies) regarding the island, initially requesting permission to annex the island, then requesting its transfer from the Colony of Tasmania, as this would close a loophole in New Zealand's closed sealing season when vessels were poaching on sub-Antarctic islands under the Colony's jurisdiction but claiming they got the seal skins from Macquarie Island.[8] On the recommendation of Fysh, the Tasmanian Legislative Council passed a motion on 24 July 1890 requesting the "necessary steps be taken" for Macquarie Island to be transferred to New Zealand.[9] Fysh was in no hurry to complete this process,[10] and the request was only officially transmitted to the Tasmanian Legislative Assembly on 28 August 1890.[11]

When the Legislative Assembly considered the matter on 2 September 1890, the virtue of transferring a dependent island was questioned, and (after several points of order and jokes from members) the assembly deferred consideration until the following day (effectively denying the transfer).[12] By October 1890, it was certain that Tasmania would not condone the transfer of the island to New Zealand. Sir Harry Atkinson (Premier of New Zealand) expressed his regrets that Tasmania had decided against the transfer, with Fysh noting that all of New Zealand's stated objectives could be achieved under existing Tasmanian legislation and through inter-colonial agreements.[13] In mid October 1890, The Southland Times was reporting that an explanation was forthcoming from Wellington.[14] On 23 October 1890, Fysh formally advised New Zealand of the colonial legislature's refusal to transfer the island, and on 20 November 1890 Knutsford formally advised Onslow that the British government had not consented to any transfer.[15]

On 20 April 1891, regulations issued by the Tasmanian Commissioner of Fisheries for the protection of seals on Macquarie Island came into effect. This was possible under existing Tasmanian legislation, namely the Fisheries Act 1889.[15] By 26 October 1891, these regulations were amended to expire on 20 July 1894, and to no longer include the forfeiture of a vessel as penalty for the offence.[16]

20th century

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Between 1902 and 1920, the Tasmanian Government leased the island to Joseph Hatch (1837–1928) for his oil industry based on harvesting penguins.[17]

 
Penguins and remains of the wreck of The Gratitude, Nuggets Beach, Macquarie Island, 1911, Frank Hurley

Between 1911 and 1914, the island became a base for the Australasian Antarctic Expedition under Sir Douglas Mawson. George Ainsworth operated a meteorological station between 1911 and 1913, followed by Harold Power from 1913 to 1914, and by Arthur Tulloch from 1914 until the station was shut down in 1915.

In 1933, the authorities declared the island a wildlife sanctuary under the Tasmanian Animals and Birds Protection Act 1928 and, in 1972, it was made a State Reserve under the Tasmanian National Parks and Wildlife Act 1970.[18] On 25 May 1948, the Australian National Antarctic Research Expeditions (ANARE) established its expedition headquarters on Macquarie Island. In March 1949, they were visited by the Fifth French Antarctic Expedition on their return trip from Adélie Land where any landing was made impossible due to extensive pack ice that year.[19]

The island had status as a biosphere reserve under the Man and the Biosphere Programme from 1977 until its withdrawal from the program in 2011.[20] On 5 December 1997, Macquarie Island was inscribed on the UNESCO World Heritage List as a site of major geoconservation significance, being the only mid-ocean ridge on Earth where rocks from the Earth's mantle are being actively exposed above sea-level.[18][21]

21st century

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On 23 December 2004, an earthquake measuring 8.1 on the moment magnitude scale rocked the island but caused no significant damage.[22] Geoscience Australia issued a Tsunami Inundation Advice for Macquarie Island Station.[23] The paper indicated that a tsunami caused by a local earthquake could occur with no warning, and could inundate the isthmus and its existing station. Such a tsunami would likely affect other parts of the coastline and field huts located close to the shore. According to several papers, an earthquake capable of causing a tsunami of that significance is a high risk.

Geography

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Macquarie Island bluffs

Macquarie Island is about 34 km (21 mi) long and 5 km (3 mi) wide, with an area of 128 km2 (49 sq mi).[2] The island consists of plateaus at north and south ends, each of 150–200 m (490–660 ft) elevation, joined by a low, narrow isthmus. The high points include Mount Elder on the northeast coastal ridge at 385 m (1,263 ft), and Mounts Hamilton and Fletcher in the south at 410 m (1,345 ft). The island is almost equidistant between the island of Tasmania and the Antarctic continent's Anderson Peninsula, about 1,500 km (930 mi; 810 nmi) from either point. In addition, Macquarie Island is about 630 km (390 mi; 340 nmi) southwest of Auckland Island, and 1,300 km (810 mi; 700 nmi) north of the Balleny Islands.

Near Macquarie Island are two small groups of minor islands: the Judge and Clerk Islets (54°21′S 159°01′E / 54.350°S 159.017°E / -54.350; 159.017 (Judge and Clerk Islets)), 14 km (9 mi; 8 nmi) to the north, 0.2 km2 (49 acres) in area, and the Bishop and Clerk Islets (55°03′S 158°46′E / 55.050°S 158.767°E / -55.050; 158.767 (Bishop and Clerk Islets)), 34 km (21 mi; 18 nmi) to the south, 0.6 km2 (150 acres) in area. Like Macquarie Island, both groups are part of the state of Tasmania. The Bishop and Clerk Islets mark the southernmost point of Australia (excluding the Australian Antarctic Territory).

In the 19th century a phantom island named "Emerald Island" was believed to lie south of Macquarie Island.

 
Simplified geological map

Geology

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Further information: Macquarie fault zone

The island is located on the tectonic plate boundary between the Australian plate to the northwest and the Pacific plate to the southeast. It is part of the Macquarie Ridge, a 1,600 kilometres (990 mi) long fault zone in the oceanic crust, running southwestwards from New Zealand along the plate boundary. The Macquarie Ridge has formed along the plate boundary by movement of the two plates towards each other, leading to uplift along the boundary. However, in earlier geologic time the two plates had been moving apart, allowing lava from the earth's mantle to rise to the seafloor, forming basalt. The subsequent reversal of the movement of the plates has uplifted the basaltic material from the seafloor along the line of the Macquarie Ridge.[24]

The Macquarie ridge lies entirely on the seafloor except for where it rises above sea level at Macquarie Island. The island emerged above sea level in recent geologic time - the highest points on the island may have emerged above the sea as recently as 300,000 years ago or less. The estimates vary based on the assumed rate of uplift and the changes in sea level over time.[25] The unique exposures include excellent examples of pillow basalts without any hint of continental crust contamination. The island is an example of an ophiolite - a section of Earth's oceanic crust and the underlying upper mantle that has been uplifted and exposed. The process has been described as "the island itself seems to have been simply squeezed toward the surface like toothpaste from a tube".[26]The unique exposures include excellent examples of pillow basalts without any hint of continental crust contamination and other extrusive rocks.[27] It also is the only oceanic environment with an exposed ophiolite sequence. The geology of the island has been described as revealing "the best exposed and most isolated pieces of the ocean floor in the world".The unique geological exposures were one of the two criteria cited when the island was listed as a UNESCO World Heritage Site in 1997.[21]

The island lies close to the edge of the submerged continent of Zealandia, but is not regarded as a part of it, because the Macquarie Ridge is oceanic crust rather than continental crust.

Climate

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Macquarie Island's climate is moderated by the sea, and all months have an average temperature above freezing; although snow is common between June and October, and may even occur in summer. Due to its cold summers, the island has a tundra climate (ET) under the Köppen climate classification.

Average daily maximum temperatures range from 4.9 °C (40.8 °F) in July to 8.8 °C (47.8 °F) in January. Precipitation occurs fairly evenly throughout the year and averages 1,002.1 mm (39.45 in) annually. Macquarie Island is one of the cloudiest places on Earth with an annual average of only 862 hours of sunshine (similar to Tórshavn in the Faroe Islands). Annually, there are an average of 289.4 cloudy days and just 3.5 clear days.[28]

There are 316.7 precipitation days annually, including 55.7 snowy days (being equal to Charlotte Pass on this metric). This is a considerably lower figure than at Heard Island due to its longitude, which receives 96.8 snowy days at only 53 degrees south.[29]

Climate data for Macquarie Island (1948–2022); 6 m AMSL; 54.50° S, 158.94° E
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °C (°F) 13.6
(56.5) 		17.0
(62.6) 		12.6
(54.7) 		12.2
(54.0) 		10.0
(50.0) 		10.6
(51.1) 		8.3
(46.9) 		8.5
(47.3) 		9.5
(49.1) 		10.3
(50.5) 		11.6
(52.9) 		14.4
(57.9) 		17.0
(62.6)
Mean daily maximum °C (°F) 8.8
(47.8) 		8.7
(47.7) 		8.0
(46.4) 		7.0
(44.6) 		5.9
(42.6) 		5.0
(41.0) 		4.9
(40.8) 		5.1
(41.2) 		5.4
(41.7) 		5.8
(42.4) 		6.5
(43.7) 		7.9
(46.2) 		6.6
(43.8)
Daily mean °C (°F) 7.1
(44.8) 		7.0
(44.6) 		6.4
(43.5) 		5.4
(41.7) 		4.2
(39.6) 		3.3
(37.9) 		3.3
(37.9) 		3.4
(38.1) 		3.5
(38.3) 		3.9
(39.0) 		4.6
(40.3) 		6.1
(43.0) 		4.9
(40.8)
Mean daily minimum °C (°F) 5.3
(41.5) 		5.3
(41.5) 		4.7
(40.5) 		3.7
(38.7) 		2.5
(36.5) 		1.5
(34.7) 		1.6
(34.9) 		1.6
(34.9) 		1.5
(34.7) 		2.0
(35.6) 		2.7
(36.9) 		4.3
(39.7) 		3.1
(37.5)
Record low °C (°F) 0.6
(33.1) 		−0.6
(30.9) 		−2.3
(27.9) 		−4.5
(23.9) 		−6.8
(19.8) 		−7.0
(19.4) 		−9.4
(15.1) 		−8.9
(16.0) 		−8.7
(16.3) 		−6.0
(21.2) 		−3.9
(25.0) 		−1.7
(28.9) 		−9.4
(15.1)
Average precipitation mm (inches) 89.0
(3.50) 		86.2
(3.39) 		101.0
(3.98) 		94.3
(3.71) 		87.4
(3.44) 		79.3
(3.12) 		74.4
(2.93) 		76.5
(3.01) 		76.5
(3.01) 		78.0
(3.07) 		73.9
(2.91) 		80.7
(3.18) 		1,002.1
(39.45)
Average precipitation days 25.5 24.2 27.1 27.3 28.3 27.0 27.2 27.4 26.5 26.2 25.0 25.0 316.7
Average afternoon relative humidity (%) 84 85 86 87 87 87 88 87 85 83 83 83 85
Mean monthly sunshine hours 114.7 104.5 86.8 54.0 31.0 18.0 24.8 43.4 69.0 99.2 108.0 108.5 861.9
Source: Australian Bureau of Meteorology[28][30]

Flora and fauna

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See also: Birds of Macquarie Island and Category:Flora of Macquarie Island
 
A royal penguin rookery on Macquarie Island

The flora has taxonomic affinities with other subantarctic islands, especially those south of New Zealand. Plants rarely grow over 1 metre (3 ft 3 in) in height, though the tussock-forming grass Poa foliosa can grow up to 2 metres (6 ft 7 in) tall in sheltered areas. There are over 45 vascular plant species and more than 90 moss species, as well as many liverworts and lichens. Woody plants are absent.

The island has five principal vegetation formations: grassland, herbfield, fen, bog and feldmark. Bog communities include 'featherbed', a deep and spongy peat bog vegetated by grasses and low herbs, with patches of free water.[31] Endemic flora include the cushion plant Azorella macquariensis, the grass Puccinellia macquariensis, and two orchids – Nematoceras dienemum and Nematoceras sulcatum.[32]

Mammals found on the island include subantarctic fur seals, Antarctic fur seals, New Zealand fur seals and southern elephant seals – over 80,000 individuals of this species. Diversities and distributions of cetaceans are less known; southern right whales[33] and orcas are more common followed by other migratory baleen and toothed whales, especially sperm and beaked whales, which prefer deep waters.[34][35] So-called "upland seals" once found on Antipodes Islands and Macquarie Island have been claimed by some researchers as a distinct subspecies of fur seals with thicker furs, although it is unclear whether these seals were genetically distinct.[36]

Royal penguins and Macquarie shags are endemic breeders, while king penguins, southern rockhopper penguins and gentoo penguins also breed here in large numbers. The island has been identified by BirdLife International as an Important Bird Area because it supports about 3.5 million breeding seabirds of 13 species.[37]

Human interaction

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Protected area

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The Tasmanian Government declared Macquarie Island as a wildlife sanctuary in 1933. The status was changed to a conservation area in 1971, and then in 1972 it was re-designated as a state reserve known as the Macquarie Island Wildlife Reserve. In 1977 the island was declared a Biosphere Reserve under the UNESCO Man and the Biosphere Programme, and it was also listed on the Australia Register of the National Estate. In 1978, the area of the state reserve was extended to the mean low-water mark including the offshore islets, and it was formally named as the Macquarie Island Nature Reserve. Access to the reserve was restricted from 1979 onwards, requiring a permit for all those seeking access to the reserve.[38]

In December 1997, Macquarie Island was listed as UNESCO World Heritage Site, including the reserve and the surrounding waters out to 12 nautical miles. The Macquarie Island Marine Park was established in 1999, and in 2000, the Macquarie Island Nature Reserve was extended in 2000 to include the area out to 3 nautical miles from the island and outlying islets.[38]

Impact of introduced animals

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The island ecology was affected by the onset of European visits in 1810. The island's fur seals, elephant seals and penguins were killed for fur and blubber. Rats and mice that were inadvertently introduced from the ships prospered due to lack of predators. Cats were subsequently introduced deliberately to keep them from eating human food stores. In about 1870, rabbits and a species of New Zealand rail (wekas) were left on the island by sealers to breed for food.[39] This caused huge damage to the local wildlife, including the extinction of the Macquarie Island rail (Gallirallus macquariensis), the Macquarie parakeet (Cyanoramphus erythrotis), and an as-yet-undescribed species of teal. By the 1970s, 130,000 rabbits were causing tremendous damage to vegetation.[40]

Feral cats

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The feral cats introduced to the island had a devastating effect on the native seabird population, with an estimated annual loss of 60,000 seabirds. From 1985, efforts were undertaken to remove the cats. In June 2000, the last of the nearly 2,500 cats were culled in an effort to save the seabirds.[41] Seabird populations responded rapidly,[42] but rats and rabbits population increased after the cats were culled, and continued to cause widespread environmental damage.[41]

Rabbits

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The rabbits rapidly multiplied before numbers were reduced to about 10,000 in the early 1980s when myxomatosis was introduced. Rabbit numbers then grew again to over 100,000 by 2006.[43] Rats and mice feeding on young chicks, and rabbits nibbling on the grass layer, has led to soil erosion and cliff collapses, destroying seabird nests.[41] Large portions of the Macquarie Island bluffs are eroding as a result. In September 2006 a large landslip at Lusitania Bay, on the eastern side of the island, partially destroyed an important penguin breeding colony. Tasmania Parks and Wildlife Service attributed the landslip to a combination of heavy spring rains and severe erosion caused by rabbits.[44]

Research by Australian Antarctic Division scientists, published in the 13 January 2009 issue of the British Ecological Society's Journal of Applied Ecology, suggested that the success of the feral cat eradication program has allowed the rabbit population to increase, damaging the Macquarie Island ecosystem by altering significant areas of island vegetation.[45] However, in a comment published in the same journal other scientists argued that a number of factors (primarily a reduction in the use of the Myxoma virus) were almost certainly involved and the absence of cats may have been relatively minor among them.[46] The original authors examined the issue in a later reply and concluded that the effect of the Myxoma virus use was small and reaffirmed their original position.[47] The original authors did not, however, explain how rabbit numbers were greater in previous periods such as the 1970s before the myxoma virus was introduced and when cats were not being controlled, nor how rabbits had built up to such high numbers when cats were present for some 60 years prior to the introduction of rabbits;[citation needed] suggesting that cats were not controlling rabbit populations before the introduction of the myxoma virus.[original research?]

Eradication of rabbits, rats and mice

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On 4 June 2007, a media release by Malcolm Turnbull, Federal Minister for Australia's Environment and Water Resources Board, announced that the Australian and Tasmanian Governments had reached an agreement to jointly fund the eradication of rodent pests, including rabbits, to protect Macquarie Island's World Heritage values.[48] The plan, estimated to cost $24 million Australian dollars, was based on mass baiting the island similar to an eradication program on Campbell Island, New Zealand,[49] to be followed with teams of dogs trained by Steve Austin[50] over a maximum seven-year period.[51] The baiting was expected to inadvertently affect kelp gulls, but greater-than-expected bird deaths caused the program to be suspended. Other species killed by the baits include giant petrels, black ducks and skuas.[52]

In February 2012, The Australian newspaper reported that rabbits, rats and mice had been nearly eradicated from the island.[53] In April 2012 the hunting teams reported the extermination of 13 rabbits that had survived the 2011 baiting; the last five were found in November 2011, including a lactating doe and four kittens. No fresh rabbit signs were found up to July 2013.[54]

On 8 April 2014, Macquarie Island was officially declared pest-free, after seven years of conservation efforts.[55] This achievement was the largest successful island pest-eradication program attempted to that date.[56][57] In May 2024, it was reported that the island had remained free of pests for 10 years, with vegetation flourishing.

Populations of multiple bird species have begun to recover. The white-headed petrel (Pterodroma lessonii) that was close to extinction by 2001 has shown a large increase in breeding success, and the population is now slowly increasing. Two other species of petrel, the grey petrel (Procellaria cinerea) and blue petrel (Halobaena caerulea) that were extinct on the main island from the 1900s, have now returned. Their populations are increasing at around 10% per annum.[58] However, ongoing monitoring, along with measures such as the use of biosecurity dogs to check cargo with the island as its destination are necessary, as there are new threats such as climate change and avian influenza. Ongoing monitoring programs are funded by the federal government.[59]

Introduced birds

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Despite being declared pest-free, Macquarie Island is still inhabited by several invasive bird species, such as the domestic mallard and European starling. The self-introduction of domestic mallards from New Zealand has become a threat to the Pacific black duck population on Macquarie Island through introgressive hybridisation.[60][61]

Governance and administration

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Macquarie Island has been a part of Tasmania, Australia since 1880. It was a part of Esperance Municipality until 1993, when the municipality was merged with other municipalities to form Huon Valley Council.[62]

Since 1948, the Australian Antarctic Division (AAD) has maintained a permanent base, the Macquarie Island Station, on the isthmus at the northern end of the island at the foot of Wireless Hill. The population of the base, constituting the island's only human inhabitants, usually varies from 20 to 40 people over the year. A heliport is located nearby.

In September 2016, the Australian Antarctic Division said it would close its research station on the island in 2017.[63] However, shortly afterwards, the Australian government responded to widespread backlash by announcing funding to upgrade ageing infrastructure and continue existing operations.[63]

In 2018, the Australian Antarctic Division published a map showing the island's buildings with confirmed or suspected asbestos contamination, which included at least half the structures there.[64]

In April 2024, Permanent Daylight-Saving Time on Macquarie Island was abolished by the Huon Valley Council and was changed to Summer DST. Previously, Macquarie Island was the only place on earth to observe permanent Daylight-Saving Time. Permanent Daylight-Saving on Macquarie Island was intended for stationed personnel on Macquarie Island Station, until a permanent human population was granted.

Through "Operation Southern Discovery", elements of the Australian Defence Force also provide annual support for the Australian Antarctic Division and the Australian Antarctic Program (AAP) in regional scientific, environmental and economic activities.[65] As part of "Operation Resolute", the Royal Australian Navy and Australian Border Force are tasked with deploying Cape or Armidale-class patrol boats to carry out civil maritime security operations in the region as may be required.[66] In part to carry out this mission, as of 2023, the Navy's Armidale-class boats are in the process of being replaced by larger Arafura-class offshore patrol vessels.[67]

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Wildlife sounds

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King penguin rookery at Lusitania Bay
Male elephant seal vocalising
Royal penguin rookery at Hurd Point

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See also

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References

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  1. ^ "Macquarie Island Station". Australian Antarctic Division. Archived from the original on 24 July 2010. Retrieved 16 July 2013.
  2. ^ a b c Scott, Keith (1993). The Australian Geographic book of Antarctica. Terrey Hills, New South Wales: Australian Geographic. p. 14. ISBN 978-1-86276-010-3.
  3. ^ a b Macquarie Island: a brief history — Australian Antarctic Division Archived 13 June 2012 at the Wayback Machine. Antarctica.gov.au. Retrieved on 16 July 2013.
  4. ^ McNab, Robert (1909). Murihiku: A History of the South Island of New Zealand and the Islands Adjacent and Lying to the South, from 1642 to 1835. Wellington: Whitcombe and Tombs Limited. p. 176.
  5. ^ R.K. Headland, Historical Antarctic sealing industry, Scott Polar Research Institute (Cambridge University), 2018, p. 167. ISBN 978-0-901021-26-7, p. 167.
  6. ^ a b Inches Thomson, John Sen (1912). Voyages and Wanderings In Far-off Seas and Lands. London, England: Headley Brothers. pp. 139–191.
  7. ^ "Item BB-AU-490 - Letters patent constituting the office of Governor and Commander-in-Chief of the Colony of Tasmania and its Dependencies". University of Tasmania. Retrieved 3 October 2023.
  8. ^ "ANNEXATION OF MACQUARIE ISLANDS (PAPERS RELATIVE TO THE)". 1890 Session I: Being the 4th Session of the 10th Parliament of New Zealand. Appendix to the Journals of the House of Representatives. 1 (A-05). 1890. Retrieved 3 October 2023.
  9. ^ "EPITOME OF NEWS". The Mercury. 25 July 1890. Retrieved 3 October 2023.
  10. ^ "EPITOME OF NEWS". 1 August 1890. Retrieved 3 October 2023.
  11. ^ "EPITOME OF NEWS". The Mercury. 29 August 1890. Retrieved 3 October 2023.
  12. ^ "HOUSE OF ASSEMBLY". The Mercury. 3 September 1890. Retrieved 3 October 2023.
  13. ^ "EPITOME OF NEWS". The Mercury. 8 October 1890. Retrieved 3 October 2023.
  14. ^ "EPITOME OF NEWS". The Mercury. 15 October 1890. Retrieved 3 October 2023.
  15. ^ a b "ANNEXATION OF MACQUARIE ISLANDS (PAPERS RELATIVE TO THE). [In Continuation of Papers A.-5 of 1890.]". 1891 Session II: Being the 2nd Session of the 11th Parliament of New Zealand. Appendix to the Journals of the House of Representatives. 2 (A-05). 1891. Retrieved 3 October 2023.
  16. ^ "The Fisheries Act, 1889: Regulation Under" (PDF). Tassmanian Legislative Council. 26 October 1891. Retrieved 4 October 2023.
  17. ^ "Sinking a Small Fortune: Joseph Hatch and the Oiling Industry" (PDF). Parks and Wildlife Service. Tasmanian Government. Archived (PDF) from the original on 22 August 2017. Retrieved 20 March 2018.
  18. ^ a b Parks & Wildlife Service - History of the Reserve Archived 14 March 2011 at the Wayback Machine. Parks.tas.gov.au (24 June 2013). Retrieved 16 July 2013.
  19. ^ Pierre Dubard; Luc-Marie Bayle (1951). Le "Charcot" et la Terre Adélie (in French). Paris: Éditions France Empire. pp. 127–131.
  20. ^ "Biosphere reserves withdrawn from the World Network of Biosphere reserves". Man and the Biosphere Programme. UNESCO. Archived from the original on 11 December 2016. Retrieved 5 November 2016.
  21. ^ a b "Macquarie Island". World Heritage List. UNESCO. 1997. Archived from the original on 21 June 2016. Retrieved 8 July 2016.
  22. ^ "Antarctic expeditioners unscathed by earthquake". ABC News. Australia. 24 December 2004. Archived from the original on 23 December 2007. Retrieved 5 April 2007.
  23. ^ Geoscience Australia Professional Opinion. January 2014
  24. ^ Rodney Russ; Aleks Terauds (August 2009). Galapagos of the Antarctic: wild islands south of New Zealand. Heritage Expeditions. p. 174. ISBN 978-0-473-14635-1. OL 24005812M. Wikidata Q124158686.
  25. ^ P.M. Selkirk; R.D. Seppelt; D.R. Selkirk (2008). Subantarctic Macquarie Island: environment and biology. Cambridge University Press. ISBN 978-0-521-07603-6. Wikidata Q131552246.
  26. ^ P.M. Selkirk; R.D. Seppelt; D.R. Selkirk (2008). Subantarctic Macquarie Island: environment and biology. Cambridge University Press. ISBN 978-0-521-07603-6. Wikidata Q131552246.
  27. ^ Geoscience Australia: Macquarie Island
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