Preliminary spatial behaviour of warru (Petrogale lateralis MacDonnell Ranges race) in the Anangu Pitjantjatjara Yankunytjatjara Lands, South Australia

2011 ◽  
Vol 33 (2) ◽  
pp. 181 ◽  
Author(s):  
Laura Ruykys ◽  
Matthew J. Ward ◽  
David A. Taggart ◽  
William G. Breed
Keyword(s):  
Global Positioning System ◽  
Arid Zone ◽  
Management Strategies ◽  
South Australia ◽  
High Mobility ◽  
Future Research ◽  
North West ◽  
The North ◽  
Similar Work ◽  
Global Positioning

This study aimed to determine the home range and movement patterns of Petrogale lateralis in the arid-zone Anangu Pitjantjatjara Yankunytjatjara Lands in the north-west of South Australia. Ten Global Positioning System radio-collars were attached to animals, with collars programmed to function in 2008–09. Catastrophic collar failure resulted in only 28 days of data, from July 2008, being retrieved from one adult female. During this time, the female occupied a 90% kernel range of 57.9 ha and core (50%) range of 9.3 ha. The animal moved a total of 50.8 km and undertook three journeys of over 1 km. The longest of these was 1.2 km, undertaken in 89 min. The high mobility of the study animal has implications for management, particularly predator baiting and fire management strategies. Future research should assess the validity of these results by increasing sample size and conducting similar work for other arid-zone P. lateralis. The lessons learnt from the current GPS collar deployment may also be of interest to other researchers.

Australian Aborigines: geographical variability of craniological features.

2019 ◽  
Vol 48 (4) ◽  
pp. 243-251
Author(s):  
Aleksey V. Ivanov ◽  
Sergey V. Vasilyev
Keyword(s):  
Arid Zone ◽  
South Australia ◽  
Northern Territory ◽  
Australian Aborigines ◽  
North West ◽  
The North ◽  
South Wales ◽  
High Form ◽  
Australian Continent ◽  
Mixed Origin

This work is devoted to the study of craniological traits of Australian aborigines (male and female samples) and their geographical differentiation applying a special program of cranial traits. According to the craniological classification (Pestryakov, Grigorieva, 2004), native population of Australia belongs to the Tropid craniotype, i.e. is characterized by a relatively small size and long, narrow and relatively high form of the skull. The primary settlement of the Australian continent could only origin in the North. There are two contrasting craniotypes in Australia, which probably reflect the two main waves of the aboriginal migration across the continent. The skulls of the first migratory wave were larger and relatively low-vaulted. They are mostly characteristic of the aborigines of South Australia, who later also migrated to the north, to the arid zone of Central Australia. The second major wave is characterized by smaller high-vaulted skulls, which are now characteristic of the population of the north of the continent (Queensland and, especially, the Northern Territory and North-West Australia). The territory of the southeast of Australia (Victoria and New South Wales states) is the most favorable area for human living. The two main migratory waves mixed there, which led to the observed craniological heterosis. The craniological samples of western and northwestern Australia are also of mixed origin, but are more comparable to the Northern Territory groups. The Tasmanians are significantly different from the General Australian population in terms of craniology. This is especially true for the female sample. Perhaps the ancestors of the Tasmanians represented the very first settlement wave of the ancient Sahul continent, before the separation of the island from the mainland.

Australian Aborigines: geographical variability of craniological features

2019 ◽  
Vol 48 (4) ◽  
pp. 252-267
Author(s):  
Aleksandr P. Pestriyakov ◽  
Olga M. Grigorieva ◽  
Yulia V. Pelenitsina
Keyword(s):  
Arid Zone ◽  
South Australia ◽  
Northern Territory ◽  
Australian Aborigines ◽  
North West ◽  
The North ◽  
South Wales ◽  
High Form ◽  
Australian Continent ◽  
Mixed Origin

This work is devoted to the study of craniological traits of Australian aborigines (male and female samples) and their geographical differentiation applying a special program of cranial traits. According to the craniological classification (Pestryakov, Grigorieva, 2004), native population of Australia belongs to the Tropid craniotype, i.e. is characterized by a relatively small size and long, narrow and relatively high form of the skull. The primary settlement of the Australian continent could only origin in the North. There are two contrasting craniotypes in Australia, which probably reflect the two main waves of the aboriginal migration across the continent. The skulls of the first migratory wave were larger and relatively low-vaulted. They are mostly characteristic of the aborigines of South Australia, who later also migrated to the north, to the arid zone of Central Australia. The second major wave is characterized by smaller high-vaulted skulls, which are now characteristic of the population of the north of the continent (Queensland and, especially, the Northern Territory and North-West Australia). The territory of the southeast of Australia (Victoria and New South Wales states) is the most favorable area for human living. The two main migratory waves mixed there, which led to the observed craniological heterosis. The craniological samples of western and northwestern Australia are also of mixed origin, but are more comparable to the Northern Territory groups. The Tasmanians are significantly different from the General Australian population in terms of craniology. This is especially true for the female sample. Perhaps the ancestors of the Tasmanians represented the very first settlement wave of the ancient Sahul continent, before the separation of the island from the mainland

The distribution, ecology and current status of Pseudomys desertor in South Australia

1999 ◽  
Vol 26 (4) ◽  
pp. 453 ◽  
Author(s):  
J. Read ◽  
P. Copley ◽  
P. Bird
Keyword(s):  
Prolonged Exposure ◽  
Arid Zone ◽  
Habitat Preferences ◽  
South Australia ◽  
Current Status ◽  
High Fecundity ◽  
North West ◽  
The North ◽  
Flinders Ranges ◽  
North Western

Recent surveys have shown that the desert mouse (Pseudomys desertor), which was once considered to be rare in South Australia, is relatively widespread throughout the north-west of the State. However, historical localities in the Flinders Ranges and Nullarbor Plain were not matched with contemporary records, suggesting a range contraction to the central desert regions. Habitat preferences were determined from 78 captures at 41 sites, which revealed that samphire, sedge and nitrebush habitats, along with spinifex grassland, were favoured. A high tolerance to high rabbit numbers, mining activity, moderate cattle grazing pressures and cohabitation with Mus domesticus was evident. Pseudomys desertor is sometimes diurnal, possibly as a result of the time-consuming and regular foraging requirements of its folivorous diet. High mortality rates, resulting from prolonged exposure to predators, and lack of complex deep burrow systems are offset by its high fecundity and ecological plasticity. We consider that P. desertor is secure in the north-western arid zone of South Australia.

scholarly journals CONTRIBUIÇÃO À COMPREENSÃO DO CAMPO TÉRMICO DA CIDADE DE JUAZEIRO DO NORTE (CE) PELA METODOLOGIA DE TRANSECTOS MÓVEIS

2019 ◽  
Vol 21 (2) ◽  
pp. 1363-1373
Author(s):  
Gabriella Saraiva de Albuquerque ◽  
Mirelle Oliveira Silva ◽  
Gabriela De Souza Estevão
Keyword(s):  
Global Positioning System ◽  
Spatial Modeling ◽  
Urban Climate ◽  
Positioning System ◽  
The North ◽  
Regional University ◽  
Global Positioning ◽  
Receiver Model ◽  
The City ◽  
Study Plan

O presente trabalho, está vinculado a um projeto de iniciação científica desenvolvido junto ao Laboratório de Geoprocessamento da Universidade Regional do Cariri que tem como temática a modelagem espacial das ilhas de calor e de frescor na cidade de Juazeiro do Norte, Ceará, Brasil. Os resultados apresentados foram obtidos através do primeiro campo do referido projeto de pesquisa e foi realizado por meio da metodologia de transecto móvel, contemplando os trajetos na direção sul-norte e oeste-leste para a coleta dos dados de temperatura do ar, com o intuito de compreender os contrastes térmicos da cidade de Juazeiro do Norte. O transecto fora realizado ainda no período chuvoso e iniciou-se às 21:00 horas, não ultrapassando 50 minutos, coletando no total a temperatura de 25  pontos distribuídos no perímetro urbano e considerando as características geoeambientais e geourbanas. Os registros foram executados utilizando um termômetro digital com sensor externo com cabo de 2m Icotem e um receptor GPS (Global Positioning System) modelo Garmin Map 76CSX para marcação das coordenadas UTM dos respectivos registros de temperatura. As maiores temperaturas, de 24,8ºC á 25,8ºC foram registradas em espaços densamente construídos, as menores, entre 22,6ºC á 23ºC foram percebidas em áreas com características rurais e menos urbanizadas.Palavras-chave: Ilha de calor. Clima urbano. Transecto Móvel.                                                                   ABSTRACTThe present work is linked to a project of scientific initiation, together with the Laboratory of Geoprocessing of the Regional University of Cariri, whose theme is the spatial modeling of the islands of heat and freshness in the city of Juazeiro do Norte, Ceará, Brazil. The results of the research were submitted through the mapping of the first study plan south-north and east-east to the collection of data of air temperature, with the intention. Of contracting the thermal contrasts of the city of Juazeiro of the North. The transectofor theater was still rainy and began at 21:00 hours, not exceeding 50 minutes, collecting in total the temperature of 25 points distributed in the urban perimeter and considering geo-environmental and georban features. The terminals were run using a digital thermometer with external sensor with 2m Icotem cable and a GPS (Global Positioning System) receiver model Garmin Map 76CSX for marking the UTM coordinates of the children temperature registers. The highest temperatures, from 24.8ºC to 25.8ºC were recorded in densely constructed spaces, the lowest temperatures, between 22.6ºC and 23ºC, were observed in areas with rural and less urbanized characteristics.Keywords: Island of heat. Urban climate. Transect Mobile. RESUMENEste trabajo está vinculado a un proyecto de iniciación científica desarrollado en el Laboratorio de Geoprocesamiento de la Universidad Regional de Cariri, cuyo tema es el modelado espacial de las islas de calor y frescura en la ciudad de Juazeiro do Norte, Ceará, Brasil. Los resultados presentados se obtuvieron del primer campo de este proyecto de investigación y se llevaron a cabo mediante la metodología de transecto móvil, contemplando las rutas sur-norte y oeste-este para la recolección de datos de temperatura del aire, con el fin de para comprender los contrastes térmicos de la ciudad de Juazeiro do Norte. El transecto se realizó durante la estación lluviosa y comenzó a las 21:00 horas, sin exceder los 50 minutos, recogiendo una temperatura total de 25 puntos distribuidos en el perímetro urbano y considerando las características geoambientales y geourban. Las grabaciones se realizaron utilizando un termómetro digital con sensor externo con cable Icotem de 2 m y un receptor del Sistema de Posicionamiento Global (GPS) Garmin Map 76CSX para marcar las coordenadas UTM de los respectivos registros de temperatura. Las temperaturas más altas, de 24.8ºC a 25.8ºC, se registraron en espacios densamente construidos, la más baja, entre 22.6ºC a 23ºC, se observó en áreas con características rurales y menos urbanizadas.Palabras clave: isla de calor. Clima urbano. Transecto móvil.

scholarly journals Accelerating changes in ice mass within Greenland, and the ice sheet’s sensitivity to atmospheric forcing

2019 ◽  
Vol 116 (6) ◽  
pp. 1934-1939 ◽  
Author(s):  
Michael Bevis ◽  
Christopher Harig ◽  
Shfaqat A. Khan ◽  
Abel Brown ◽  
Frederik J. Simons ◽  
...  
Keyword(s):  
Global Positioning System ◽  
Climate Model ◽  
Regional Climate ◽  
Atmospheric Forcing ◽  
Surface Mass ◽  
The North ◽  
Global Positioning ◽  
The North Atlantic Oscillation ◽  
Gravity Recovery ◽  
Gps Observations

From early 2003 to mid-2013, the total mass of ice in Greenland declined at a progressively increasing rate. In mid-2013, an abrupt reversal occurred, and very little net ice loss occurred in the next 12–18 months. Gravity Recovery and Climate Experiment (GRACE) and global positioning system (GPS) observations reveal that the spatial patterns of the sustained acceleration and the abrupt deceleration in mass loss are similar. The strongest accelerations tracked the phase of the North Atlantic Oscillation (NAO). The negative phase of the NAO enhances summertime warming and insolation while reducing snowfall, especially in west Greenland, driving surface mass balance (SMB) more negative, as illustrated using the regional climate model MAR. The spatial pattern of accelerating mass changes reflects the geography of NAO-driven shifts in atmospheric forcing and the ice sheet’s sensitivity to that forcing. We infer that southwest Greenland will become a major future contributor to sea level rise.

ENVIRONMENTAL REVIEW 2000

2001 ◽  
Vol 41 (2) ◽  
pp. 80
Author(s):  
S.J. Smith
Keyword(s):  
Environmental Management ◽  
New Technology ◽  
Petroleum Industry ◽  
South Australia ◽  
Environmental Reporting ◽  
North West ◽  
Natural Gas Pipelines ◽  
The North ◽  
Timor Sea ◽  
Epbc Act

Last year the petroleum industry witnessed the enactment of new legislation both at Commonwealth and State levels. The principal legislative change to environmental management was the introduction of the Commonwealth Government’s Environmental Protection and Biodiversity Act, 2000 (EPBC Act). South Australia and Victoria also implemented new Petroleum Acts and/ or Regulations.Construction of the Eastern Gas Pipeline was also completed last year, whilst preliminary approvals and environmental assessment continues for the Papua New Guinea, Timor Sea and Tasmania Natural Gas pipelines. Offshore exploration continued, particularly in the North West Shelf, Otway Basin, Timor Sea and Bass Strait.Other critical areas of environmental management included greenhouse gases, national pollution inventory reporting and the increasing requirements for environmental approval and management under various state environmental legislation.This paper provides an overview of environmental developments in the petroleum industry during the year 2000, in particular, the implication of new legislation, new technology, e-commerce and a greater focus on environmental reporting.

Review of the 2009 offshore petroleum exploration release areas

2009 ◽  
Vol 49 (1) ◽  
pp. 465
Author(s):  
Thomas Bernecker
Keyword(s):  
Deep Water ◽  
South Australia ◽  
Northern Territory ◽  
Data Availability ◽  
Petroleum Exploration ◽  
Release Date ◽  
North West ◽  
The North ◽  
Release Area ◽  
Block Sizes

The Australian Government formally releases new offshore exploration areas at the annual APPEA conference. This year, 31 areas plus two special areas in five offshore basins are being released for work program bidding. Closing dates for bid submissions are either six or twelve months after the release date (i.e. 3 December 2009 and 29 April 2010), depending on the exploration status in these areas is and on data availability. The 2009 release areas are located in Commonwealth waters offshore Northern Territory, Western Australia, South Australia and Victoria, comprising intensively explored areas close to existing production as well as new frontiers. As usual, the North West Shelf features very prominently and is complimented by new areas along the southern margin, including frontier exploration areas in the Ceduna Sub-basin (Bight Basin) and the Otway Basin. The Bonaparte Basin is represented by one release area in the Malita Graben, while five areas are available in the Southern Browse Basin in an under-explored area of the basin. A total of 14 areas are being released in the Carnarvon Basin, with eight areas located in the Dampier Sub-basin, three small blocks in the Rankin Platform and three large blocks on the Northern Exmouth Plateau (these are considered a deep water frontier). In the south, six large areas are on offer in the Ceduna Sub-basin and five areas of varying sizes are being released in the Otway Basin, including a deep water frontier offshore Victoria. The special release areas are located in the Petrel Sub-basin, Bonaparte Basin offshore Northern Territory, and encompass the Turtle/Barnett oil discoveries. The 2009 offshore acreage release offers a wide variety of block sizes in shallow as well as deep water environments. Area selection has been undertaken in consultation with industry, the states and Territory. This year’s acreage release caters for the whole gamut of exploration companies given that many areas are close to existing infrastructure while others are located in frontier offshore regions. As part of Geoscience Australia’s Offshore Energy Security Program, new data has been acquired in offshore frontier regions and have yielded encouraging insights into the hydrocarbon prospectivity of the Ceduna-Sub-basin.

An initial assessment of the potential environmental impact of CO2 escape from marine carbon capture and storage systems

2009 ◽  
Vol 223 (3) ◽  
pp. 269-280 ◽  
Author(s):  
J Blackford ◽  
N Jones ◽  
R Proctor ◽  
J Holt ◽  
S Widdicombe ◽  
...  
Keyword(s):  
Carbon Capture ◽  
Carbon Capture And Storage ◽  
Ecological Impacts ◽  
Initial Assessment ◽  
Future Research ◽  
North West ◽  
Environmental Perturbation ◽  
The North ◽  
Marine System ◽  
And Storage

If carbon capture and storage is to be adopted as a CO2 mitigation strategy, it is important to understand the associated risks. The risk analysis consists of several elements such as leakage probability, assessing the strength of environmental perturbation, and quantifying the ecological, economic, and social impacts. Here, the environmental perturbation aspect is addressed by using a marine system model of the North West European Shelf seas to simulate the consequences of CO2 additions such as those that could arise from a failure of geological sequestration schemes. Little information exists to guide the choice of leak scenario and many assumptions are required; for consistency the assumptions err towards greater impact and what would be in likelihood extreme scenarios. The simulations indicate that only the largest leakage scenarios tested are capable of producing perturbations that are likely to have environmental consequences beyond the locality of a leak event. It is shown that, given the available evidence, the chemical perturbation of a sequestration leak, regionally integrated, is likely to be insignificant when compared with that from continued non-mitigated atmospheric CO2 emissions and the subsequent acidification of the marine system. The potential ecological impacts of a large environmental CO2 perturbation are reviewed, indicating that the biogeochemical functioning and biodiversity are sensitive. The key unknowns that must be addressed in future research are identified; namely, the fine scale dispersion of CO2 and the ability of ecological systems to recover from perturbation.

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