Relevant bibliographies by topics / Geomorphology – Tasmania – Macquarie Island

Academic literature on the topic 'Geomorphology – Tasmania – Macquarie Island'

Author: Grafiati
Published: 10 December 2022
Last updated: 29 January 2023

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Journal articles on the topic "Geomorphology – Tasmania – Macquarie Island"

1

Stephenson, Steven L., Gary A. Laursen, and Rodney D. Seppelt. "Myxomycetes of subantarctic Macquarie Island." Australian Journal of Botany 55, no. 4 (2007): 439. http://dx.doi.org/10.1071/bt06169.

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Macquarie Island is an oceanic island located 1000 km south-east of Tasmania. The island, which lies close to but north of the Antarctic Convergence, is the southernmost island in the world with a fairly complete cover of vegetation. However, the vascular flora is impoverished and consists of only 46 species. During the period of late January to late April of 1995, 412 field collections of myxomycetes, representing at least 22 species in 11 genera, were obtained during the course of an intensive survey of fungal biodiversity on Macquarie Island. Moist-chamber cultures prepared with various types of plant debris yielded only 14 collections, but this total included three additional species and two additional genera. All but four of the species we recorded from the island are new records for the South Polar Region. Most field collections were associated with Stilbocarpa polaris (Araliaceae) and Pleurophyllum hookeri (Asteraceae), the usual dominants in the herbfield communities that commonly occur on upper beach slopes and coastal terraces. Trichia verrucosa (80 collections), Diderma alpinum (78) and Craterium leucocephalum (59) were the most consistently abundant myxomycetes. Other species represented by ≥15 collections were Didymium cf. dubium, Collaria lurida, Lamproderma arcyrioides and Didymium macquariense. The latter is a species new to science that was described from material collected during the present study. All of the species of myxomycetes now known to occur on Macquarie Island are members of the Trichiales, Physarales, Stemonitales or Echinosteliales; no member of the Liceales or Ceratiomyxales was ever collected.
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2

ZHURBENKO, Mikhail P., and Uwe BRAUN. "Cecidiomyces, a new subantarctic lichenicolous hyphomycete genus." Lichenologist 44, no. 6 (October 8, 2012): 801–6. http://dx.doi.org/10.1017/s0024282912000527.

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AbstractCecidiomyces santessonii gen. & sp. nov., found on Stereocaulon species on the subantarctic Macquarie Island (Tasmania, Australia), is described, illustrated and compared with other morphologically similar genera and species. It is characterized by a lichenicolous habit, gall-formation, caespitose to sporodochial colonies, semi-macronematous, monoblastic, determinate conidiophores reduced to conidiogenous cells, solitary, 0–1-euseptate, pigmented conidia, and schizolytic conidial secession.
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3

Dixon, G., and I. Houshold. "Notes on the geology and geomorphology of De Witt Island, southwest Tasmania." Papers and Proceedings of the Royal Society of Tasmania 130, no. 1 (1996): 67–74. http://dx.doi.org/10.26749/rstpp.130.1.67.

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4

Shaughnessy, Peter D., Catherine M. Kemper, and John K. Ling. "Records of vagrant phocid seals (family Phocidae) in South Australia." Australian Mammalogy 34, no. 2 (2012): 155. http://dx.doi.org/10.1071/am11036.

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Five species of phocid seal of the Southern Ocean and Antarctica come ashore occasionally on the southern Australian coast but do not breed there. We document records (specimens and sightings) of visits to South Australia (SA) by southern phocids from 1883 until August 2011. We used records from the SA Museum, reports from coastal officers of SA Department of Environment and Natural Resources (DENR), the DENR fauna database, information from the public, the literature and newspapers. Thirty-six southern elephant seal records included two births, in November 1932 and October 1986. The latter pup suckled for 20 days and then stayed ashore for eight weeks; both are similar to average durations at Macquarie Island. Of 33 dated records, 31 were between August and April, when elephant seals at Macquarie Island (the closest breeding site) are ashore to breed or moult. A recognisable male on Kangaroo Island has been sighted often over 10 years to 2010. Of the ice-breeding species, there were 54 leopard seal records. All of 40 dated records were between June and December, with the maximum (12) in August, similar to the seasonal distribution in Tasmania. There were five records of crabeater seals, one of a Ross seal, and one of a Weddell seal.
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5

KANTVILAS, Gintaras. "The genus Menegazzia (Lecanorales: Parmeliaceae) in Tasmania revisited." Lichenologist 44, no. 2 (February 8, 2012): 189–246. http://dx.doi.org/10.1017/s0024282911000685.

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AbstractWith 30 species, Tasmania is a major area of species diversity in the genus Menegazzia. Seven of these are new to science: M. abscondita Kantvilas, known from Tasmania and New Zealand, and M. athrotaxidis Kantvilas, M. hypogymnioides Kantvilas, M. petraea Kantvilas, M. ramulicola Kantvilas, M. subtestacea Kantvilas and M. tarkinea Kantvilas, all endemic to Tasmania. An identification key, descriptions based exclusively on Tasmanian collections, and detailed discussion of distribution, ecology, chemical composition and inter-species relationships are provided. All literature records of Menegazzia species pertaining to Tasmania are accounted for. New synonyms include: Menegazzia prototypica P. James and Parmelia pertusa var. coskinodes F. Wilson [synonyms of M. myriotrema (Müll. Arg.) R. Sant.], M. fertilis P. James [a synonym of M. platytrema (Müll. Arg.) R. Sant.] and Parmelia pertusa var. montana F. Wilson (a synonym of M. subtestacea). Incorrectly recorded species that should be deleted from the Tasmanian census include M. castanea P. James & D. J. Galloway (present on Macquarie Island) and M. testacea P. James & D. J. Galloway (endemic to New Zealand). The South American species, M. sanguinascens (Räs.) R. Sant., is recorded in Australasia (Tasmania) for the first time, whereas the widespread south-eastern Australian M. norstictica P. James is recorded for Western Australia. Salient features of the genus are discussed, including morphology, anatomy and chemistry. The biogeography of the genus is explored briefly. Twelve species (40%) are endemic to Tasmania, a level of endemism unmatched by any other species-rich genus on the island. Twelve species are shared with mainland Australia, eleven are shared with New Zealand, and only four species are shared with southern South America, all of which are sorediate, suggesting they are products of long-distance dispersal.
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6

Banks, Maxwell R., Eric A. Colhoun, and David Hannan. "Early Discoveries of the Effects of Ice Action in Australia." Journal of Glaciology 33, no. 114 (1987): 231–35. http://dx.doi.org/10.1017/s002214300000873x.

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Abstract The effects of past glaciation in what is now Australian territory were first recognized on Macquarie Island, probably by David Ramsay, in 1821. The recognition by Darwin in 1836, and reporting by Milligan in 1848 of ice-transported pebbles and boulders in late Palaeozoic marine rocks in Tasmania, showed on the one hand participation in and on the other familiarity with the controversy in Great Britain at that time on the origin of erratics and drift currents. Reports by Clarke (1852), Daintree in 1859, Selwyn (1860), and Gould (1860) of the effects of land ice on Mount Koscuisko (New South Wales), Bacchus Marsh (Victoria), Inman Valley (South Australia), and the Central Highlands (Tasmania), respectively, reflect the increasing recognition in Great Britain of the erosional and depositional effects of glaciers. Daintree, Selwyn, and Gould were all closely connected with A.C. Ramsay, the main British protagonist of the glacial theory at the time, whereas David Ramsay and Milligan were probably influenced by Robert Jameson of Edinburgh.
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7

Banks, Maxwell R., Eric A. Colhoun, and David Hannan. "Early Discoveries of the Effects of Ice Action in Australia." Journal of Glaciology 33, no. 114 (1987): 231–35. http://dx.doi.org/10.3189/s002214300000873x.

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AbstractThe effects of past glaciation in what is now Australian territory were first recognized on Macquarie Island, probably by David Ramsay, in 1821. The recognition by Darwin in 1836, and reporting by Milligan in 1848 of ice-transported pebbles and boulders in late Palaeozoic marine rocks in Tasmania, showed on the one hand participation in and on the other familiarity with the controversy in Great Britain at that time on the origin of erratics and drift currents. Reports by Clarke (1852), Daintree in 1859, Selwyn (1860), and Gould (1860) of the effects of land ice on Mount Koscuisko (New South Wales), Bacchus Marsh (Victoria), Inman Valley (South Australia), and the Central Highlands (Tasmania), respectively, reflect the increasing recognition in Great Britain of the erosional and depositional effects of glaciers. Daintree, Selwyn, and Gould were all closely connected with A.C. Ramsay, the main British protagonist of the glacial theory at the time, whereas David Ramsay and Milligan were probably influenced by Robert Jameson of Edinburgh.
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8

Orchard.A.E. "A revision of the Coprosma pumila (Rubiaceae) complex in Australia, New Zealand and the Subantarctic Islands." Brunonia 9, no. 2 (1986): 119. http://dx.doi.org/10.1071/bru9860119.

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The widespread complex of mat-forming Coprosma species, hitherto known as 'Coprosma pumila', plus some close allies (C. petriei, C. atropurpurea, C. nivalis) have been reexamined. C. pumila s. str. is shown to be restricted to the northern central plateau and Ben Lomond areas of Tasmania. The name C. perpusilla Col. is resurrected for the orange-fruited plants of Australia and New Zealand formerly included in C. pumila. A new subspecies, C. perpusilla ssp. subantarctica, is erected for the plants on Macquarie, Auckland, Camp- bell and Antipodes Islands. A new species, C. niphophila, is recognised for the Mt Kosciusko region and the South Island of New Zealand. The six species and two subspecies of the complex are keyed, fully described and illustrated, and their interrelation- ships, particularly their trans-Tasman vicariance, are discussed.
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9

Cargill, D. Christine, Nicole G. F. Vella, Ish Sharma, and Joseph T. Miller. "Cryptic speciation and species diversity among Australian and New Zealand hornwort taxa of Megaceros (Dendrocerotaceae)." Australian Systematic Botany 26, no. 5 (2013): 356. http://dx.doi.org/10.1071/sb13030.

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Recent molecular studies have redefined families and genera within the anthocerotes, but species boundaries are only now being revised. Monophyly of Australian and New Zealand taxa within the genus Megaceros Campb., which share the same spore and similar gametophyte morphology, was assessed. On the basis of sequence data, mainland Australian lineages are not monophyletic but are interspersed with New Zealand lineages. There are three species present in Australia, including the common and widespread M. gracilis (Reichardt) Steph., the widespread tropical M. flagellaris (Mitt.) Steph., recognised by its tesselated spores, and a new species, M. austronesophilus, found only in Tasmania and Macquarie Island. None of the currently recognised New Zealand taxa is conspecific with any of the Australian taxa. However, New Zealand lineages were found to be genetically and morphologically more diverse than is currently recognised.
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10

Lemenkova, Polina. "GEBCO and ETOPO1 gridded datasets for GMT based cartographic Mapping of Hikurangi, Puysegur and Hjort Trenches, New Zealand." Acta Universitatis Lodziensis. Folia Geographica Physica, no. 19 (December 30, 2020): 7–18. http://dx.doi.org/10.18778/1427-9711.19.01.

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The study focused on the comparative analysis of the submarine geomorphology of three oceanic trenches: Hikurangi Trench (HkT), Puysegur Trench (PT) and Hjort Trench (HjT), New Zealand region, Pacific Ocean. HjT is characterized by an oblique subduction zone. Unique regional tectonic setting consist in two subduction zones: northern (Hikurangi margin) and southern (Puysegur margin), connected by oblique continental collision along the Alpine Fault, South Island. This cause variations in the geomorphic structure of the trenches. PT/HjT subduction is highly oblique (dextral) and directed southwards. Hikurangi subduction is directed northwestwards. South Island is caught in between by the “subduction scissor”. Methodology is based on GMT (The Generic Mapping Tools) for mapping, plotting and modelling. Mapping includes visualized geophysical, tectonic and geological settings of the trenches, based on sequential use of GMT modules. Data include GEBCO, ETOPO1, EGM96. Comparative histogram equalization of topographic grids (equalized, normalized, quadratic) was done by module ’grdhisteq’, automated cross-sectioning – by ’grdtrack’. Results shown that HjT has a symmetric shape form with comparative gradients on both western and eastern slopes. HkT has a trough-like flat wide bottom, steeper gradient slope on the North Island flank. PT has an asymmetric V-form with steep gradient on the eastern slopes and gentler western slope corresponding to the relatively gentle slope of a subducting plate and steeper slope of an upper one. HkT has shallower depths < 2,500 m, PT is <-6,000 m. The deepest values > 6,000 m for HjT. The surrounding relief of the HjT presents the most uneven terrain with gentle slope oceanward, and a steep slope on the eastern flank for PT, surrounded by complex submarine relief along the Macquarie Arc. Data distribution for the HkT demonstrates almost equal pattern for the depths from -600 m to ₋2,600 m. PT has a bimodal data distribution with 2 peaks: 1) -4,250 to -4,500 m (18%); 2) -2,250 to -3,000 m, < 7,5%. The second peak corresponds to the Macquarie Arc. Data distribution for HjT is classic bell-shaped with a clear peak at -3,250 to -3,500 m. The asymmetry of the trenches resulted in geomorphic shape of HkT, PT and HjT affected by geologic processes.
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Books on the topic "Geomorphology – Tasmania – Macquarie Island"

1

D, Seppelt R., and Selkirk D. R, eds. Subantarctic Macquarie Island: Environment and biology. Cambridge [England]: Cambridge University Press, 1990.

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2

Selkirk, Patricia, Rod Seppelt, and David Selkirk. Subantarctic Macquarie Island: Environment and Biology. Cambridge University Press, 2008.

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3

Stoney, Henry Butler. Residence in Tasmania: With a Descriptive Tour Through the Island, from Macquarie Harbour to Circular Head. Creative Media Partners, LLC, 2018.

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