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Articoli di riviste sul tema "Algal populations South Australia West Island"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 29 gennaio 2023

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1

Shaughnessy, P. D., S. D. Goldsworthy, and A. I. Mackay. "The long-nosed fur seal (Arctocephalus forsteri) in South Australia in 2013–14: abundance, status and trends." Australian Journal of Zoology 63, no. 2 (2015): 101. http://dx.doi.org/10.1071/zo14103.

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The long-nosed (or New Zealand) fur seal (Arctocephalus forsteri) breeds in southern Australia and New Zealand. Most of the Australian population is in South Australia, between Kangaroo Island and Eyre Peninsula. Fur seal populations in southern Australia were heavily exploited by colonial sealers between 1801 and 1830, resulting in major reductions. Numbers remained low for 150 years, then slowly built up and new colonies established across their presumed former range. Here we present estimates of pup abundance at South Australia colonies, mostly during the 2013–14 breeding season. Long-nosed

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2

Pichon, A., L. Arvanitakis, O. Roux, A. A. Kirk, C. Alauzet, D. Bordat, and L. Legal. "Genetic differentiation among various populations of the diamondback moth, Plutella xylostella Lepidoptera Yponomeutidae." Bulletin of Entomological Research 96, no. 2 (April 2006): 137–44. http://dx.doi.org/10.1079/ber2005409.

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AbstractGenetic variation among 14 populations of Plutella xylostella (Linnaeus) from USA (Geneva, New York), Brazil (Brasilia), Japan (Okayama), The Philippines (Caragan de Oyo), Uzbekistan (Tashkent), France (Montpellier), Benin (Cotonou), South Africa (Johannesburg), Réunion Island (Montvert), and five localities in Australia (Adelaide, Brisbane, Mareeba, Melbourne, Sydney) were assessed by analysis of allozyme frequencies at seven polymorphic loci. Most of the populations were not in Hardy–Weinberg equilibrium and had a deficit in heterozygotes. The global differentiation among populations

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3

Tidemann, CR. "Morphological Variation in Australian and Island Populations of Goulds Wattled Bat, Chalinolobus-Gouldii (Gray) (Chiroptera, Vespertilionidae)." Australian Journal of Zoology 34, no. 4 (1986): 503. http://dx.doi.org/10.1071/zo9860503.

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Univariate and bivariate analyses were used to demonstrate that C. gouldii increases in size from north to south and, to a lesser extent, from west to east. There is little difference between the sexes in most dimensions. Although significant differences exist between animals from localities widely separated geographically, multivariate analyses suggest that C. gouldii once occurred over most of mainland Australia, Tasmania, Norfolk I. and New Caledonia. The species appears to have become extinct or very rare in recent times on Norfolk I.; the possibility of re-introduction is discussed.

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4

Heenan, Peter B., Ian R. H. Telford, and Jeremy J. Bruhl. "Three new species of Gingidia (Apiaceae: Apioideae) from Australia and New Zealand segregated from G. montana." Australian Systematic Botany 26, no. 3 (2013): 196. http://dx.doi.org/10.1071/sb13007.

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Three new species of Gingidia (Apiaceae: Apioideae) segregated from the G. montana (J.R.Forst. & G.Forst.) J.W.Dawson complex are named, with G. montana now regarded as a New Zealand endemic. The new Australian endemic, G. rupicola I.Telford & J.J.Bruhl, is restricted to the eastern escarpment of the New England Tableland, New South Wales. With few populations and limited numbers of plants, the conservation assessment of G. rupicola is Endangered. G. haematitica Heenan is described as a new species from North-West Nelson, South Island, New Zealand, where it is restricted to base-rich s

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5

Coleman, M. A., B. M. Gillanders, and S. D. Connell. "Dispersal and gene flow in the habitat-forming kelp, Ecklonia radiata: relative degrees of isolation across an east - west coastline." Marine and Freshwater Research 60, no. 8 (2009): 802. http://dx.doi.org/10.1071/mf08268.

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Characterising patterns of dispersal and gene flow in habitat-forming organisms is becoming a focal concern for conservation and management strategies as anthropogenic impacts drive change in coastal ecosystems. Here, we use six microsatellite markers to characterise dispersal and gene flow across the South Australian distribution of the habitat-forming kelp Ecklonia radiata. Populations of E. radiata on subtidal reefs in South Australia were highly genetically structured on large (100s of km, FST = 0.211) and small (10s of km, FST = 0.042) spatial scales with the extent of differentiation pos

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6

Kirby, GC. "The Population Biology of a Smut Fungus, Ustilago spinificis Ludw. I. Geographic Distribution and Abundance." Australian Journal of Botany 36, no. 3 (1988): 339. http://dx.doi.org/10.1071/bt9880339.

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Ustilago spinificis, a floral smut of Spinifex hirsutus and S. sericeus, was collected across southern Australia from Yanchep, W.A. on the west coast to Seaspray, Vic, on the south-eastern coast and from the North Island of New Zealand. The host plants are most abundant on beaches with extensive sand dunes and the smut is common in regions where the host is abundant. The distribution limits for the smut are set by the replacement of S. hirsutus by a non-host, S. longifolius, north of Perth on the west coast; by the absence or rarity of host plants on rocky coastlines across the Great Australia

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7

Pearson, D. J., and J. E. Kinnear. "A Review of The Distribution, Status and Conservation of Rock-wallabies in Western Australia." Australian Mammalogy 19, no. 2 (1996): 137. http://dx.doi.org/10.1071/am97137.

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Western Australia has five species of rock-wallabies. Petrogale brachyotis, Petrogale burbidgei and Petrogale concinna occur in wet-dry tropical habitats in the Kimberley region. Petrogale rothschildi is a Pilbara region endemic, while Petrogale lateralis has the largest distribution, extending from the south-west Kimberley to islands off the southern coastline. There have been few collections of the three species restricted to the Kimberley. Their small size, secretive disposition and variable pelage have hampered field identification, and thus, understanding of their distribution and status.

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8

Copley, P. B., and P. J. Alexander. "Overview of The Status of Rock-wallabies in South Australia." Australian Mammalogy 19, no. 2 (1996): 153. http://dx.doi.org/10.1071/am97153.

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The status of Yellow-footed Rock-wallabies (Petrogale xanthopus) and Black-footed Rock-wallabies (P. lateralis) in South Australia was assessed by comparing recent survey and census data with previously collated information about the distribution and relative abundance of each taxon. Petrogale xanthopus has maintained most of its known geographic range within the state; however, its relative abundance has declined significantly and 35 (or 15%) of a total of 229 recorded colonies have become extinct since European settlement. Eight of these colony extinctions have occurred over the past 25 year

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9

Bougher, N. L., and J. A. Friend. "Fungi consumed by translocated Gilbert's potoroos (Potorous gilbertii) at two sites with contrasting vegetation, south coastal Western Australia." Australian Mammalogy 31, no. 2 (2009): 97. http://dx.doi.org/10.1071/am09012.

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Gilbert’s potoroo (Potorous gilbertii) was previously widespread in south-west Australia but is now restricted to one location – a granitic area of shrubby heath at Two Peoples Bay Nature Reserve on the south coast of Western Australia. To alleviate the threat of extinction a program is under way to establish potoroos in other locations. At Two Peoples Bay Gilbert’s potoroos feed almost exclusively on truffle fungi. However, it was not known whether potoroos translocated to any new areas would be able to rapidly access and consume fungi after translocation, or whether truffles could be a susta

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10

Story, G., D. Berman, R. Palmer, and J. Scanlan. "The impact of rabbit haemorrhagic disease on wild rabbit (Oryctolagus cuniculus) populations in Queensland." Wildlife Research 31, no. 2 (2004): 183. http://dx.doi.org/10.1071/wr00099.

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Rabbit haemorrhagic disease virus (RHDV) escaped from quarantine facilities on Wardang Island in September 1995 and spread through South Australia to Queensland by December 1995. To determine the impact of this biological control agent on wild rabbit populations in Queensland, shot sample and spotlight count data were collected at six sites. RHDV spread across Queensland from the south-west to the east at a rate of at least 91 km month–1 between October 1995 and October 1996. The initial impact on rabbit density appeared highly variable, with an increase of 81% (255 ± 79 (s.e.) to 385 ± 73 rab

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11

Spencer, Peter B. S., Karlene Bain, Matthew W. Hayward, Mia Hillyer, and J. A. Tony Friend. "Persistence of remnant patches and genetic loss at the distribution periphery in island and mainland populations of the quokka." Australian Journal of Zoology 67, no. 1 (2019): 38. http://dx.doi.org/10.1071/zo19055.

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Understanding the spatial structure of populations is important in developing effective management options for threatened species, and for managing habitat connectivity for metapopulation function, and for demographic and genetic heterogeneity. We used genetic information to investigate the structure of populations of the quokka, Setonix brachyurus, in south-west Western Australia. We hypothesised that movement between known populations would be relatively rare and result in significant genetic structuring. Genetic analyses from 412 adult individuals at 14 nuclear markers (microsatellite) from

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12

IVESON, J. B., S. D. BRADSHAW, R. A. HOW, and D. W. SMITH. "Human migration is important in the international spread of exoticSalmonellaserovars in animal and human populations." Epidemiology and Infection 142, no. 11 (December 16, 2013): 2281–96. http://dx.doi.org/10.1017/s0950268813003075.

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SUMMARYThe exposure of indigenous humans and native fauna in Australia and the Wallacea zoogeographical region of Indonesia to exoticSalmonellaserovars commenced during the colonial period and has accelerated with urbanization and international travel. In this study, the distribution and prevalence of exoticSalmonellaserovars are mapped to assess the extent to which introduced infections are invading native wildlife in areas of high natural biodiversity under threat from expanding human activity. The major exoticSalmonellaserovars, Bovismorbificans, Derby, Javiana, Newport, Panama, Saintpaul a

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13

Gales, N. J., B. Haberley, and P. Collins. "Changes in the abundance of New Zealand fur seals, Arctocephalus forsteri, in Western Australia." Wildlife Research 27, no. 2 (2000): 165. http://dx.doi.org/10.1071/wr99027.

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New Zealand fur seals, Arctocephalus forsteri, have been increasing in abundance in South Australia for at least the past three decades. A survey of New Zealand fur seals during the 1989/90 breeding season determined that about 20% of the Australian population bred at 16 sites in Western Australia, amounting to 1429 pups and an absolute abundance estimate of 7100 fur seals. A further survey of all fur seal colonies in Western Australia to determine current pup production and abundance estimates, and trends in pup production since the previous survey was undertaken in January 1999. Of the 17 br

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14

Story, G., J. Scanlan, R. Palmer, and D. Berman. "Corrigendum to: The impact of rabbit haemorrhagic disease on wild rabbit (Oryctolagus cuniculus) populations in Queensland." Wildlife Research 31, no. 6 (2004): 651. http://dx.doi.org/10.1071/wr00099_co.

Testo completo

Abstract (sommario):

Rabbit haemorrhagic disease virus (RHDV) escaped from quarantine facilities on Wardang Island in September 1995 and spread through South Australia to Queensland by December 1995. To determine the impact of this biological control agent on wild rabbit populations in Queensland, shot sample and spotlight count data were collected at six sites. RHDV spread across Queensland from the south-west to the east at a rate of at least 91 km month–1 between October 1995 and October 1996. The initial impact on rabbit density appeared highly variable, with an increase of 81% (255 ± 79 (s.e.) to 385 ± 73 rab

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15

Driessen, Michael M., Stephen A. Mallick, Andrew Lee, and Shaun Thurstans. "Loss of habitat through inundation and the conservation status of two endemic Tasmanian Syncarid crustaceans: Allanaspides hickmani and A. helonomus." Oryx 40, no. 4 (October 2006): 464–67. http://dx.doi.org/10.1017/s0030605306001165.

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Extant representatives of the ancient crustacean family Anaspididae are restricted to the island State of Tasmania, Australia. Allanaspides hickmani and Allanaspides helonomus were first described in the early 1970s from surface pools in buttongrass moorland in two adjacent watersheds in south-west Tasmania. Both of these catchments have since been inundated for hydroelectric power generation (Lake Gordon and Serpentine Impoundments). Surveys indicate that both species persist in a small number of highly fragmented populations on the margins of the two impoundments. A. hickmani and A. helonomu

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16

Papa, Yvan, Mark A. Morrison, Maren Wellenreuther, and Peter A. Ritchie. "Genomic Stock Structure of the Marine Teleost Tarakihi (Nemadactylus macropterus) Provides Evidence of Potential Fine-Scale Adaptation and a Temperature-Associated Cline Amid Panmixia." Frontiers in Ecology and Evolution 10 (May 30, 2022). http://dx.doi.org/10.3389/fevo.2022.862930.

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Tarakihi (Nemadactylus macropterus) is an important fishery species with widespread distribution around New Zealand and off the southern coasts of Australia. However, little is known about whether the populations are locally adapted or genetically structured. To address this, we conducted whole-genome resequencing of 175 tarakihi from around New Zealand and Tasmania (Australia) to obtain a dataset of 7.5 million genome-wide and high-quality single nucleotide polymorphisms (SNPs). Variant filtering, FST-outlier analysis, and redundancy analysis (RDA) were used to evaluate population structure,

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17

Nielsen, Hanne E. F., Chloe Lucas, and Elizabeth Leane. "Rethinking Tasmania’s Regionality from an Antarctic Perspective: Flipping the Map." M/C Journal 22, no. 3 (June 19, 2019). http://dx.doi.org/10.5204/mcj.1528.

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IntroductionTasmania hangs from the map of Australia like a drop in freefall from the substance of the mainland. Often the whole state is mislaid from Australian maps and logos (Reddit). Tasmania has, at least since federation, been considered peripheral—a region seen as isolated, a ‘problem’ economically, politically, and culturally. However, Tasmania not only cleaves to the ‘north island’ of Australia but is also subject to the gravitational pull of an even greater land mass—Antarctica. In this article, we upturn the political conventions of map-making that place both Antarctica and Tasmania

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