Concussion assessment and management — what do community-level cricket participants know?
- Kodikara, Dulan, Plumb, Mandy, Twomey, Dara
- Authors: Kodikara, Dulan , Plumb, Mandy , Twomey, Dara
- Date: 2023
- Type: Text , Journal article
- Relation: Journal of Science and Medicine in Sport Vol. 26, no. 9 (2023), p. 448-453
- Full Text:
- Reviewed:
- Description: Objectives: To explore Australian cricket participants' knowledge of concussion assessment and management, and awareness of current concussion guidelines. Design: Cross-sectional survey. Methods: Novel and validated surveys were disseminated online, among over 16 year Australian cricket players and officials at the end of the 2018/19 cricket season. Data were collected on knowledge and awareness of concussion and analysed using descriptive statistics and crosstabulations. Further comparisons were made for the players between injured and non-injured, and helmet wearers and non-helmet wearers using Fisher's exact statistical test. Results: Both players (n = 224, 93 %) and officials (n = 36, 100 %) demonstrated strong knowledge of the importance of immediately evaluating suspected concussions. In comparison with players without helmets (n = 11), those using helmets (n = 135) considered replacing their helmets after a concussion to be vital to concussion assessment (p = 0.02). Overall, 80–97 % of players and 81–97 % of officials understood the importance of many factors regarding concussion management. When concussion management knowledge was compared by injury status, injured players (n = 17, 94 %) believed someone with a concussion should be hospitalised immediately, in contrast to non-injured players (n = 154, 69 %) (p = 0.04). Players (63 %) were less aware of concussion guidelines than officials (81 %). Conclusions: Overall, the knowledge of concussion assessment and management was satisfactory. However, there were discrepancies among players on some aspects of awareness of concussion guidelines. Increasing players' familiarity and experience in using the concussion guidelines is warranted. Targeted campaigns are needed to further improve concussion recognition and treatment at community-level cricket, so all participants play a role in making cricket a safe sport. © 2023
- Authors: Kodikara, Dulan , Plumb, Mandy , Twomey, Dara
- Date: 2023
- Type: Text , Journal article
- Relation: Journal of Science and Medicine in Sport Vol. 26, no. 9 (2023), p. 448-453
- Full Text:
- Reviewed:
- Description: Objectives: To explore Australian cricket participants' knowledge of concussion assessment and management, and awareness of current concussion guidelines. Design: Cross-sectional survey. Methods: Novel and validated surveys were disseminated online, among over 16 year Australian cricket players and officials at the end of the 2018/19 cricket season. Data were collected on knowledge and awareness of concussion and analysed using descriptive statistics and crosstabulations. Further comparisons were made for the players between injured and non-injured, and helmet wearers and non-helmet wearers using Fisher's exact statistical test. Results: Both players (n = 224, 93 %) and officials (n = 36, 100 %) demonstrated strong knowledge of the importance of immediately evaluating suspected concussions. In comparison with players without helmets (n = 11), those using helmets (n = 135) considered replacing their helmets after a concussion to be vital to concussion assessment (p = 0.02). Overall, 80–97 % of players and 81–97 % of officials understood the importance of many factors regarding concussion management. When concussion management knowledge was compared by injury status, injured players (n = 17, 94 %) believed someone with a concussion should be hospitalised immediately, in contrast to non-injured players (n = 154, 69 %) (p = 0.04). Players (63 %) were less aware of concussion guidelines than officials (81 %). Conclusions: Overall, the knowledge of concussion assessment and management was satisfactory. However, there were discrepancies among players on some aspects of awareness of concussion guidelines. Increasing players' familiarity and experience in using the concussion guidelines is warranted. Targeted campaigns are needed to further improve concussion recognition and treatment at community-level cricket, so all participants play a role in making cricket a safe sport. © 2023
A global review of the woody invasive alien species mimosa pigra (giant sensitive plant): Its biology and management implications
- Welgama, Amali, Florentine, Singarayer, Roberts, Jason
- Authors: Welgama, Amali , Florentine, Singarayer , Roberts, Jason
- Date: 2022
- Type: Text , Journal article
- Relation: Plants Vol. 11, no. 18 (2022), p. 2366
- Full Text:
- Reviewed:
- Description: Populations of invasive alien plants create disruptive plant communities that are extremely adaptable, imposing severe ecological impacts on agriculture, biodiversity and human activities. To minimise these impacts, prevention and effective weed management strategies are urgently required, including the identification of satellite populations before they invade new areas. This is a critical element that allows weed management practices to become both successful and cost-effective. Mimosa pigra L. (Giant sensitive plant) is an invasive weed that has spread across various environments around the world and is considered one of the world’s top 100 most invasive plant species. Being adaptable to a wide range of soil types, in addition to its woody protective prickles and low palatability, M. pigra has quickly spread and established itself in a range of habitats. Current control methods of this species include biological, chemical and physical methods, together with attempts of integrated application. Reports suggest that integrated management appears to be the most effective means of controlling M. pigra since the use of any single method has not yet proved suitable. In this regard, this review synthesises and explores the available global literature and current research gaps relating to the biology, distribution, impacts and management of M. pigra. The contribution of this work will help guide land managers to design appropriate and sustainable management programs to control M. pigra.
- Authors: Welgama, Amali , Florentine, Singarayer , Roberts, Jason
- Date: 2022
- Type: Text , Journal article
- Relation: Plants Vol. 11, no. 18 (2022), p. 2366
- Full Text:
- Reviewed:
- Description: Populations of invasive alien plants create disruptive plant communities that are extremely adaptable, imposing severe ecological impacts on agriculture, biodiversity and human activities. To minimise these impacts, prevention and effective weed management strategies are urgently required, including the identification of satellite populations before they invade new areas. This is a critical element that allows weed management practices to become both successful and cost-effective. Mimosa pigra L. (Giant sensitive plant) is an invasive weed that has spread across various environments around the world and is considered one of the world’s top 100 most invasive plant species. Being adaptable to a wide range of soil types, in addition to its woody protective prickles and low palatability, M. pigra has quickly spread and established itself in a range of habitats. Current control methods of this species include biological, chemical and physical methods, together with attempts of integrated application. Reports suggest that integrated management appears to be the most effective means of controlling M. pigra since the use of any single method has not yet proved suitable. In this regard, this review synthesises and explores the available global literature and current research gaps relating to the biology, distribution, impacts and management of M. pigra. The contribution of this work will help guide land managers to design appropriate and sustainable management programs to control M. pigra.
A process-oriented framework for regulating artificial intelligence systems
- Stranieri, Andrew, Sun, Zhaohao
- Authors: Stranieri, Andrew , Sun, Zhaohao
- Date: 2022
- Type: Text , Book chapter
- Relation: Handbook of Research on Foundations and Applications of Intelligent Business Analytics p. 96-112
- Full Text: false
- Reviewed:
- Description: Intelligent business analytics is an emerging technology that has become a mainstream market adopted broadly across industries, organizations, and geographic regions. Intelligent business analytics is a current focus for research and development across academia and industries and must be examined and considered thoroughly so businesses can apply the technology appropriately. The Handbook of Research on Foundations and Applications of Intelligent Business Analytics examines the technologies and applications of intelligent business analytics and discusses the foundations of intelligent analytics such as intelligent mining, intelligent statistical modeling, and machine learning. Covering topics such as augmented analytics and artificial intelligence systems, this major reference work is ideal for scholars, engineers, professors, practitioners, researchers, industry professionals, academicians, and students. Intelligent business analytics is an emerging technology that has become a mainstream market adopted broadly across industries, organizations, and geographic regions. Intelligent business analytics is a current focus for research and development across academia and industries and must be examined and considered thoroughly so businesses can apply the technology appropriately. The Handbook of Research on Foundations and Applications of Intelligent Business Analytics examines the technologies and applications of intelligent business analytics and discusses the foundations of intelligent analytics such as intelligent mining, intelligent statistical modeling, and machine learning. Covering topics such as augmented analytics and artificial intelligence systems, this major reference work is ideal for scholars, engineers, professors, practitioners, researchers, industry professionals, academicians, and students.
The use of infographics, tables and graphs in the hospitals and health services quality account in Australia
- Authors: Halabi, Abdel , Brown, Lee
- Date: 2022
- Type: Text , Journal article
- Relation: Asia Pacific Journal of Health Management Vol. 17, no. 1 (2022), p.
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- Description: OBJECTIVE: This study will investigate whether removing the Quality Accounts purpose and aim led to differences in the number of Infographics, Tables and Graphs used over four years. DESIGN: A content analysis was performed on the Quality Accounts of six Hospitals and Health Services from 2016 to 2019. Statistical analysis was then performed to examine differences in the use of Infographics, Tables and Graphs in the Quality Account SETTING: The six Hospitals and Health Services were operating in a rural geographical area in the state of Victoria, Australia. RESULTS: Even though some significant differences were found, this was largely due to yearly variability in the use of Infographic s, Tables and Graphs. The six Hospitals were quite different in their Quality Account presentations because these reports are structured to a particular community. CONCLUSIONS: The removal of the purpose and aim has not affected the number of Infographics, Tables and Graphs. While limitations are noted, a number of future research opportunities stem from this study to enhance the Quality Account and overall understandability of Hospital reports. © 2022 Australasian College of Health Service Management. All right reserved.
- Authors: Halabi, Abdel , Brown, Lee
- Date: 2022
- Type: Text , Journal article
- Relation: Asia Pacific Journal of Health Management Vol. 17, no. 1 (2022), p.
- Full Text:
- Reviewed:
- Description: OBJECTIVE: This study will investigate whether removing the Quality Accounts purpose and aim led to differences in the number of Infographics, Tables and Graphs used over four years. DESIGN: A content analysis was performed on the Quality Accounts of six Hospitals and Health Services from 2016 to 2019. Statistical analysis was then performed to examine differences in the use of Infographics, Tables and Graphs in the Quality Account SETTING: The six Hospitals and Health Services were operating in a rural geographical area in the state of Victoria, Australia. RESULTS: Even though some significant differences were found, this was largely due to yearly variability in the use of Infographic s, Tables and Graphs. The six Hospitals were quite different in their Quality Account presentations because these reports are structured to a particular community. CONCLUSIONS: The removal of the purpose and aim has not affected the number of Infographics, Tables and Graphs. While limitations are noted, a number of future research opportunities stem from this study to enhance the Quality Account and overall understandability of Hospital reports. © 2022 Australasian College of Health Service Management. All right reserved.
The use of infographics, tables and graphs in the hospitals and health services quality account in Australia
- Authors: Halabi, Abdel , Brown, Lee
- Date: 2022
- Type: Text , Journal article
- Relation: Asia Pacific Journal of Health Management Vol. 17, no. 1 (2022), p.
- Full Text:
- Reviewed:
- Description: OBJECTIVE: This study will investigate whether removing the Quality Accounts purpose and aim led to differences in the number of Infographics, Tables and Graphs used over four years. DESIGN: A content analysis was performed on the Quality Accounts of six Hospitals and Health Services from 2016 to 2019. Statistical analysis was then performed to examine differences in the use of Infographics, Tables and Graphs in the Quality Account SETTING: The six Hospitals and Health Services were operating in a rural geographical area in the state of Victoria, Australia. RESULTS: Even though some significant differences were found, this was largely due to yearly variability in the use of Infographic s, Tables and Graphs. The six Hospitals were quite different in their Quality Account presentations because these reports are structured to a particular community. CONCLUSIONS: The removal of the purpose and aim has not affected the number of Infographics, Tables and Graphs. While limitations are noted, a number of future research opportunities stem from this study to enhance the Quality Account and overall understandability of Hospital reports. © 2022 Australasian College of Health Service Management. All right reserved.
- Authors: Halabi, Abdel , Brown, Lee
- Date: 2022
- Type: Text , Journal article
- Relation: Asia Pacific Journal of Health Management Vol. 17, no. 1 (2022), p.
- Full Text:
- Reviewed:
- Description: OBJECTIVE: This study will investigate whether removing the Quality Accounts purpose and aim led to differences in the number of Infographics, Tables and Graphs used over four years. DESIGN: A content analysis was performed on the Quality Accounts of six Hospitals and Health Services from 2016 to 2019. Statistical analysis was then performed to examine differences in the use of Infographics, Tables and Graphs in the Quality Account SETTING: The six Hospitals and Health Services were operating in a rural geographical area in the state of Victoria, Australia. RESULTS: Even though some significant differences were found, this was largely due to yearly variability in the use of Infographic s, Tables and Graphs. The six Hospitals were quite different in their Quality Account presentations because these reports are structured to a particular community. CONCLUSIONS: The removal of the purpose and aim has not affected the number of Infographics, Tables and Graphs. While limitations are noted, a number of future research opportunities stem from this study to enhance the Quality Account and overall understandability of Hospital reports. © 2022 Australasian College of Health Service Management. All right reserved.
- Roberts, Jason, Florentine, Singarayer
- Authors: Roberts, Jason , Florentine, Singarayer
- Date: 2021
- Type: Text , Journal article , Review
- Relation: Weed Research Vol. 61, no. 4 (2021), p. 272-281
- Full Text: false
- Reviewed:
- Description: Ulex europaeus (Gorse) is one of the most invasive shrubs in the world, being now found in more than 50 countries where it economically and environmentally degrades the land. This highly versatile shrub can live more than 30 years and produce over 18,000 fertile seeds annually that can remain viable for over 30 years. Ulex europaeus spread is facilitated by its ability to germinate in a wide range of conditions, quick growth and maturing rate and several seed dispersal mechanisms. Despite extensive research and attempts at managing U. europaeus, current rates of control are not adequate to limit the species’ competitiveness and impact on the environment. This has resulted in the species altering soil and landscape dynamics in areas of major invasion, inhibiting the growth of agricultural and native species, creating shelter for pest species and reducing the richness of competing species at a site, all of which contribute to the economic and environmental degradation of the land. This review highlights that herbicide application is the most successful technique used to control U. europaeus, although it has shown varying success across different climatic regions. In this regard, future research should investigate the possibility of integrating a range of techniques (competition, fire management, grazing, manual removal and mycoherbicides) to increase control success and reduce any potential risk of herbicide resistance. Further research is also required on the maintenance of longer-term viable populations of biological control agents to limit the success of this invasive species. Bridging the identified research gaps will help to facilitate the improved long-term management of U. europaeus and help land managers confidently to maintain sustainable land systems. © 2021 European Weed Research Society
- Roberts, Jason, Florentine, Singarayer, Van Etten, Eddie, Turville, Christopher
- Authors: Roberts, Jason , Florentine, Singarayer , Van Etten, Eddie , Turville, Christopher
- Date: 2021
- Type: Text , Journal article
- Relation: Weed Science Vol. 69, no. 2 (2021), p. 210-218
- Full Text: false
- Reviewed:
- Description: African lovegrass [Eragrostis curvula (Schrad.) Nees] is a highly invasive C4 perennial grass that threatens global biodiversity. Appropriate management of this species has been hampered by a lack of knowledge concerning its seed ecology, resulting in significant economic and environmental impacts within various environments. Consequently, this study explored the effects of a selection of environmental factors (photoperiod, alternating temperature, pH, and salinity) by analyzing several measures of germination on four geographically distinct populations of E. curvula to assist in its extirpation from infested sites. Seeds were collected in Australia from Maffra and Shepparton, VIC; Tenterfield, NSW; and Midvale, WA. Key results showed that seeds from Maffra (54% vs. 79%), Tenterfield (38% vs. 61%), and Shepparton (34% vs. 71%) had significantly reduced germination in complete darkness compared with an alternating 12-h light and 12-h dark photoperiod, whereas Midvale had consistent germination (91% vs. 99%). Temperatures between 17/7 C reduced germination for Maffra (42% vs. 73%), Tenterfield (34% vs. 55%), and Shepparton (33% vs. 59%) compared with the mean of all other temperature combinations, whereas Midvale had consistent germination. Furthermore, germination for all populations was consistent between pH 4 and 9. For salinity, germination was significantly reduced at ≥100 mM for Maffra (29% vs. 67%), ≥150 mM for Tenterfield (29% vs. 94%) and Shepparton (39.5% vs. 81.5%), and 250 mM for Midvale (39% vs. 82%) compared with the mean of all other concentrations. Although each trial was conducted independently, the data can be used to generate species-targeted management. Such strategies include maintaining high levels of quarantine and hygiene programs to avoid future spread; where practical, applying light-limiting strategies (mulching, tilling, or scraping) for the Maffra, Tenterfield, and Shepparton populations; and maintaining management efforts year-round, as the species can germinate under a wide range of conditions. © The Author(s), 2021. Published by Cambridge University Press on behalf of the Weed Science Society of America.
A DNA toolbox for non-invasive genetic studies of sambar deer (Rusa unicolor)
- Davies, Chris, Wright, Wendy, Wedrowicz, Faye, Hogan, Fiona
- Authors: Davies, Chris , Wright, Wendy , Wedrowicz, Faye , Hogan, Fiona
- Date: 2020
- Type: Text , Journal article
- Relation: Australian Mammalogy Vol. 42, no. 1 (2020), p. 58-66
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- Description: Invasive sambar deer (Rusa unicolor) are having significant detrimental impacts on natural environments in south-eastern Australia. Little, however, is known about their ecology, limiting evidence-based management strategies directed at reducing deer impacts. Genetic data, generated from DNA isolated from deer scats, can be used to fill ecological knowledge gaps. This study outlines a non-invasive genetic sampling strategy by which good-quality DNA from a single deer scat can be used to determine (1) species of origin, (2) sex and (3) a unique DNA profile. DNA from deer tissue and sambar deer scat samples were used to develop and optimise molecular methods to collect reliable genetic information. A DNA toolbox is presented that describes how to find, collect and store scat samples, isolate DNA and use molecular markers to generate informative genetic data. Generating genetic data using this approach will support studies aimed at acquiring ecological knowledge about sambar deer. Such knowledge will be critical for developing evidence-based recommendations to improve on-ground management decisions for sambar deer.
- Authors: Davies, Chris , Wright, Wendy , Wedrowicz, Faye , Hogan, Fiona
- Date: 2020
- Type: Text , Journal article
- Relation: Australian Mammalogy Vol. 42, no. 1 (2020), p. 58-66
- Full Text:
- Reviewed:
- Description: Invasive sambar deer (Rusa unicolor) are having significant detrimental impacts on natural environments in south-eastern Australia. Little, however, is known about their ecology, limiting evidence-based management strategies directed at reducing deer impacts. Genetic data, generated from DNA isolated from deer scats, can be used to fill ecological knowledge gaps. This study outlines a non-invasive genetic sampling strategy by which good-quality DNA from a single deer scat can be used to determine (1) species of origin, (2) sex and (3) a unique DNA profile. DNA from deer tissue and sambar deer scat samples were used to develop and optimise molecular methods to collect reliable genetic information. A DNA toolbox is presented that describes how to find, collect and store scat samples, isolate DNA and use molecular markers to generate informative genetic data. Generating genetic data using this approach will support studies aimed at acquiring ecological knowledge about sambar deer. Such knowledge will be critical for developing evidence-based recommendations to improve on-ground management decisions for sambar deer.
Impacts of land management practices on blue carbon stocks and greenhouse gas fluxes in coastal ecosystems—a meta-analysis
- O’Connor, Jack, Fest, Benedikt, Sievers, Michael, Swearer, Stephen
- Authors: O’Connor, Jack , Fest, Benedikt , Sievers, Michael , Swearer, Stephen
- Date: 2020
- Type: Text , Journal article
- Relation: Global Change Biology Vol. 26, no. 3 (2020), p. 1354-1366
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- Reviewed:
- Description: Global recognition of climate change and its predicted consequences has created the need for practical management strategies for increasing the ability of natural ecosystems to capture and store atmospheric carbon. Mangrove forests, saltmarshes and seagrass meadows, referred to as blue carbon ecosystems (BCEs), are hotspots of atmospheric CO2 storage due to their capacity to sequester carbon at a far higher rate than terrestrial forests. Despite increased effort to understand the mechanisms underpinning blue carbon fluxes, there has been little synthesis of how management activities influence carbon stocks and greenhouse gas (GHG) fluxes in BCEs. Here, we present a global meta-analysis of 111 studies that measured how carbon stocks and GHG fluxes in BCEs respond to various coastal management strategies. Research effort has focused mainly on restoration approaches, which resulted in significant increases in blue carbon after 4 years compared to degraded sites, and the potential to reach parity with natural sites after 7–17 years. Lesser studied management alternatives, such as sediment manipulation and altered hydrology, showed only increases in biomass and weaker responses for soil carbon stocks and sequestration. The response of GHG emissions to management was complex, with managed sites emitting less than natural reference sites but emitting more compared to degraded sites. Individual GHGs also differed in their responses to management. To date, blue carbon management studies are underrepresented in the southern hemisphere and are usually limited in duration (61% of studies <3 years duration). Our meta-analysis describes the current state of blue carbon management from the available data and highlights recommendations for prioritizing conservation management, extending monitoring time frames of BCE carbon stocks, improving our understanding of GHG fluxes in open coastal systems and redistributing management and research effort into understudied, high-risk areas. © 2019 John Wiley & Sons Ltd
- Authors: O’Connor, Jack , Fest, Benedikt , Sievers, Michael , Swearer, Stephen
- Date: 2020
- Type: Text , Journal article
- Relation: Global Change Biology Vol. 26, no. 3 (2020), p. 1354-1366
- Full Text:
- Reviewed:
- Description: Global recognition of climate change and its predicted consequences has created the need for practical management strategies for increasing the ability of natural ecosystems to capture and store atmospheric carbon. Mangrove forests, saltmarshes and seagrass meadows, referred to as blue carbon ecosystems (BCEs), are hotspots of atmospheric CO2 storage due to their capacity to sequester carbon at a far higher rate than terrestrial forests. Despite increased effort to understand the mechanisms underpinning blue carbon fluxes, there has been little synthesis of how management activities influence carbon stocks and greenhouse gas (GHG) fluxes in BCEs. Here, we present a global meta-analysis of 111 studies that measured how carbon stocks and GHG fluxes in BCEs respond to various coastal management strategies. Research effort has focused mainly on restoration approaches, which resulted in significant increases in blue carbon after 4 years compared to degraded sites, and the potential to reach parity with natural sites after 7–17 years. Lesser studied management alternatives, such as sediment manipulation and altered hydrology, showed only increases in biomass and weaker responses for soil carbon stocks and sequestration. The response of GHG emissions to management was complex, with managed sites emitting less than natural reference sites but emitting more compared to degraded sites. Individual GHGs also differed in their responses to management. To date, blue carbon management studies are underrepresented in the southern hemisphere and are usually limited in duration (61% of studies <3 years duration). Our meta-analysis describes the current state of blue carbon management from the available data and highlights recommendations for prioritizing conservation management, extending monitoring time frames of BCE carbon stocks, improving our understanding of GHG fluxes in open coastal systems and redistributing management and research effort into understudied, high-risk areas. © 2019 John Wiley & Sons Ltd
Impacts of climate change on weeds, insect pests, plant diseases and crop yields: Synthesis
- Jabran, Khawar, Florentine, Singarayer, Chauhan, Bhagirath
- Authors: Jabran, Khawar , Florentine, Singarayer , Chauhan, Bhagirath
- Date: 2020
- Type: Text , Book chapter
- Relation: Crop protection under changing climate 6 p. 189-195
- Full Text: false
- Reviewed:
- Description: Three distinct components of climate change in the recent times are warming of the earth, increased levels of carbon dioxide in the atmosphere and erratic changes in water availability to plants. These changes in the global climate not only impact the growth and life cycles of plants but also affect their pests. Recent research demonstrates that the effects of climate change on pests, pesticides (their efficacy and post-application chemistry) and pest management are complex. This is important to document changes in the behaviour of pests and pesticides in the wake of climate change and propose pest management strategies accordingly. Nevertheless, non-chemical methods and integrated pest management will play an important role in sustainable pest control under climate change. Further, the effects of climate change factors on crop protection and crop production are desired to be understood in order to maintain the global food supplies and global food security.
Parish plans as a source of evidence of Aboriginal land use in the Mallee back country
- Burch, John, Clark, Ian, Cahir, David (Fred)
- Authors: Burch, John , Clark, Ian , Cahir, David (Fred)
- Date: 2020
- Type: Text , Journal article
- Relation: Provenance (North Melbourne, Vic.) Vol. , no. 18 (2020), p. 9-21
- Full Text:
- Reviewed:
- Description: The nature of Aboriginal people's use, indeed occupation, of the Victorian Mallee 'back country' warrants detailed investigation. Probably arising out of the paucity of observations of Aboriginal people on the land before it was pastorally occupied, an historical analysis from the 1870s suggesting Aboriginal people were not occupiers but mere 'seasonal visitors' to the 'back country' was unquestionably accepted for the next century. Growing understanding of the fundamentally sophisticated ways in which Aboriginal people managed their land has led to some recent historical works with a revised understanding of land use in the 'back country', but there is no agreement to move away from the orthodox historical paradigm. Parish plans from the Mallee, part of PROV's 'Parish and township plans' collection, were investigated to determine whether they contain evidence of former Aboriginal land use that could inform this question. It was found that these plans can potentially reveal the presence of pre-colonial Aboriginal water management, pathways, quarries, land management, cemeteries and placenames. Thus, parish plans were shown to be a potentially valuable resource that might have the capacity to support a reinvestigation of Aboriginal land use in the 'back country'. Approaches for a more detailed investigation of the value of these plans are suggested.
- Authors: Burch, John , Clark, Ian , Cahir, David (Fred)
- Date: 2020
- Type: Text , Journal article
- Relation: Provenance (North Melbourne, Vic.) Vol. , no. 18 (2020), p. 9-21
- Full Text:
- Reviewed:
- Description: The nature of Aboriginal people's use, indeed occupation, of the Victorian Mallee 'back country' warrants detailed investigation. Probably arising out of the paucity of observations of Aboriginal people on the land before it was pastorally occupied, an historical analysis from the 1870s suggesting Aboriginal people were not occupiers but mere 'seasonal visitors' to the 'back country' was unquestionably accepted for the next century. Growing understanding of the fundamentally sophisticated ways in which Aboriginal people managed their land has led to some recent historical works with a revised understanding of land use in the 'back country', but there is no agreement to move away from the orthodox historical paradigm. Parish plans from the Mallee, part of PROV's 'Parish and township plans' collection, were investigated to determine whether they contain evidence of former Aboriginal land use that could inform this question. It was found that these plans can potentially reveal the presence of pre-colonial Aboriginal water management, pathways, quarries, land management, cemeteries and placenames. Thus, parish plans were shown to be a potentially valuable resource that might have the capacity to support a reinvestigation of Aboriginal land use in the 'back country'. Approaches for a more detailed investigation of the value of these plans are suggested.
The regional trifecta: Entrepreneurs, managers and community leaders - an Ethnographic typology of leaders collaborating in a Regional Vicrorian Community
- Authors: Isham, Amy
- Date: 2020
- Type: Text , Thesis , PhD
- Full Text:
- Description: This doctoral thesis explores a socioeconomic model for understanding and analysing leadership in the regional area of Horsham and its hinterland communities. This thesis critiques accepted models of regional development policy and leadership theory and in doing so argues for a new approach emphasising the roles that leaders adopt to achieve goals. These roles comprise the entrepreneur, manager and community leader that this thesis terms the regional trifecta model of leadership. This is a model that explores the ways that leaders attain mutuality within social and economic eco-systems in order to achieve long-term regional economic sustainability and liveability for residents. This doctoral study uses a critical qualitative ethnographic exploration of Horsham and its surrounding region drawing on researcher, the informant participant’s observations from a wide range of industries and social backgrounds. This thesis discusses themes of policy barriers to environmentally sustainable entrepreneurship, social ostracism of female leaders, a sense of futility in bureaucratic compliance, passive and unsupportive communities, tempered with the critical hope of social enterprise and potential partnerships. In examining these themes the thesis argues that entrepreneurs are overwhelmingly values driven. It also asserts that they experience barriers of unreliable labour and unsupportive external partnerships. Managers are also strongly values driven and can experience many barriers from internal partnerships within their own organisations. Community leaders are values driven and struggle against the barriers of bureaucracy with the organisations they partner with. The thesis provides a new contribution to the literature. This includes a critique of psycho-social approaches to leadership through role-based explorations that emphasise a collective responsibility for success within an eco-system. It also examines the types of people that become leaders and their motivations in regional Victoria. From this emerges a discussion about the tension between formal governance and power structures and the informal agency of leaders. The recommendations that emerge from this research are that policy-makers, local, state and federal governments acknowledge and support the role of existing informal leaders and the significant social and economic benefit they bring to regional Victoria.
- Description: Doctor of Philosophy
- Authors: Isham, Amy
- Date: 2020
- Type: Text , Thesis , PhD
- Full Text:
- Description: This doctoral thesis explores a socioeconomic model for understanding and analysing leadership in the regional area of Horsham and its hinterland communities. This thesis critiques accepted models of regional development policy and leadership theory and in doing so argues for a new approach emphasising the roles that leaders adopt to achieve goals. These roles comprise the entrepreneur, manager and community leader that this thesis terms the regional trifecta model of leadership. This is a model that explores the ways that leaders attain mutuality within social and economic eco-systems in order to achieve long-term regional economic sustainability and liveability for residents. This doctoral study uses a critical qualitative ethnographic exploration of Horsham and its surrounding region drawing on researcher, the informant participant’s observations from a wide range of industries and social backgrounds. This thesis discusses themes of policy barriers to environmentally sustainable entrepreneurship, social ostracism of female leaders, a sense of futility in bureaucratic compliance, passive and unsupportive communities, tempered with the critical hope of social enterprise and potential partnerships. In examining these themes the thesis argues that entrepreneurs are overwhelmingly values driven. It also asserts that they experience barriers of unreliable labour and unsupportive external partnerships. Managers are also strongly values driven and can experience many barriers from internal partnerships within their own organisations. Community leaders are values driven and struggle against the barriers of bureaucracy with the organisations they partner with. The thesis provides a new contribution to the literature. This includes a critique of psycho-social approaches to leadership through role-based explorations that emphasise a collective responsibility for success within an eco-system. It also examines the types of people that become leaders and their motivations in regional Victoria. From this emerges a discussion about the tension between formal governance and power structures and the informal agency of leaders. The recommendations that emerge from this research are that policy-makers, local, state and federal governments acknowledge and support the role of existing informal leaders and the significant social and economic benefit they bring to regional Victoria.
- Description: Doctor of Philosophy
A survey on big multimedia data processing and management in smart cities
- Usman, Muhammad, Jan, Mian, He, Xiangjian, Chen, Jinjun
- Authors: Usman, Muhammad , Jan, Mian , He, Xiangjian , Chen, Jinjun
- Date: 2019
- Type: Text , Journal article
- Relation: ACM computing surveys Vol. 52, no. 3 (2019), p. 1-29
- Full Text: false
- Reviewed:
- Description: Integration of embedded multimedia devices with powerful computing platforms, e.g., machine learning platforms, helps to build smart cities and transforms the concept of Internet of Things into Internet of Multimedia Things (IoMT). To provide different services to the residents of smart cities, the IoMT technology generates big multimedia data. The management of big multimedia data is a challenging task for IoMT technology. Without proper management, it is hard to maintain consistency, reusability, and reconcilability of generated big multimedia data in smart cities. Various machine learning techniques can be used for automatic classification of raw multimedia data and to allow machines to learn features and perform specific tasks. In this survey, we focus on various machine learning platforms that can be used to process and manage big multimedia data generated by different applications in smart cities. We also highlight various limitations and research challenges that need to be considered when processing big multimedia data in real-time.
Binge eating in patients with polycystic ovary syndrome : Prevalence, causes, and management strategies
- Krug, Isabel, Giles, Sarah, Paganini, Chiara
- Authors: Krug, Isabel , Giles, Sarah , Paganini, Chiara
- Date: 2019
- Type: Text , Journal article , Review
- Relation: Neuropsychiatric Disease and Treatment Vol. 15, no. (2019), p. 1273-1285
- Full Text:
- Reviewed:
- Description: Emerging evidence suggests that disordered eating, particularly binge-eating symptomatology, is overrepresented within Polycystic Ovary Syndrome (PCOS) populations. This comorbidity presents a clinical dilemma as current treatment approaches for PCOS emphasize the importance of weight management, diet, exercise, and the potential for harm of such treatment approaches in PCOS patients with comorbid disordered eating. However, limited research has assessed the occurrence of binge eating and disordered eating in PCOS patients. Consequently, little is known about the prevalence of binge eating in PCOS, and the possible etiological processes to explain this comorbidity remain poorly understood. Given the paucity of research on this topic, the aims of this narrative review are fourfold: 1) to outline the main symptoms of PCOS and binge eating; 2) to provide an overview of the prevalence of binge eating in PCOS; 3) to outline possible etiological factors for the comorbidity between PCOS and binge eating; and 4) to provide an overview of management strategies of binge eating in PCOS.
- Authors: Krug, Isabel , Giles, Sarah , Paganini, Chiara
- Date: 2019
- Type: Text , Journal article , Review
- Relation: Neuropsychiatric Disease and Treatment Vol. 15, no. (2019), p. 1273-1285
- Full Text:
- Reviewed:
- Description: Emerging evidence suggests that disordered eating, particularly binge-eating symptomatology, is overrepresented within Polycystic Ovary Syndrome (PCOS) populations. This comorbidity presents a clinical dilemma as current treatment approaches for PCOS emphasize the importance of weight management, diet, exercise, and the potential for harm of such treatment approaches in PCOS patients with comorbid disordered eating. However, limited research has assessed the occurrence of binge eating and disordered eating in PCOS patients. Consequently, little is known about the prevalence of binge eating in PCOS, and the possible etiological processes to explain this comorbidity remain poorly understood. Given the paucity of research on this topic, the aims of this narrative review are fourfold: 1) to outline the main symptoms of PCOS and binge eating; 2) to provide an overview of the prevalence of binge eating in PCOS; 3) to outline possible etiological factors for the comorbidity between PCOS and binge eating; and 4) to provide an overview of management strategies of binge eating in PCOS.
Emerging threats and persistent conservation challenges for freshwater biodiversity
- Reid, Andrea, Carlson, Andrew, Creed, Irena, Eliason, Erika, Gell, Peter, Johnson, Pieter, Kidd, Karen, MacCormack, Tyson, Olden, Julian, Ormerod, Steve, Smol, John, Taylor, William, Tockner, Klement, Vermaire, Jesse, Dudgeon, David, Cooke, Steven
- Authors: Reid, Andrea , Carlson, Andrew , Creed, Irena , Eliason, Erika , Gell, Peter , Johnson, Pieter , Kidd, Karen , MacCormack, Tyson , Olden, Julian , Ormerod, Steve , Smol, John , Taylor, William , Tockner, Klement , Vermaire, Jesse , Dudgeon, David , Cooke, Steven
- Date: 2019
- Type: Text , Journal article
- Relation: Biological Reviews Vol. 94, no. 3 (2019), p. 849-873
- Full Text: false
- Reviewed:
- Description: In the 12 years since Dudgeon et al. (2006) reviewed major pressures on freshwater ecosystems, the biodiversity crisis in the world's lakes, reservoirs, rivers, streams and wetlands has deepened. While lakes, reservoirs and rivers cover only 2.3% of the Earth's surface, these ecosystems host at least 9.5% of the Earth's described animal species. Furthermore, using the World Wide Fund for Nature's Living Planet Index, freshwater population declines (83% between 1970 and 2014) continue to outpace contemporaneous declines in marine or terrestrial systems. The Anthropocene has brought multiple new and varied threats that disproportionately impact freshwater systems. We document 12 emerging threats to freshwater biodiversity that are either entirely new since 2006 or have since intensified: (i) changing climates; (ii) e-commerce and invasions; (iii) infectious diseases; (iv) harmful algal blooms; (v) expanding hydropower; (vi) emerging contaminants; (vii) engineered nanomaterials; (viii) microplastic pollution; (ix) light and noise; (x) freshwater salinisation; (xi) declining calcium; and (xii) cumulative stressors. Effects are evidenced for amphibians, fishes, invertebrates, microbes, plants, turtles and waterbirds, with potential for ecosystem-level changes through bottom-up and top-down processes. In our highly uncertain future, the net effects of these threats raise serious concerns for freshwater ecosystems. However, we also highlight opportunities for conservation gains as a result of novel management tools (e.g. environmental flows, environmental DNA) and specific conservation-oriented actions (e.g. dam removal, habitat protection policies, managed relocation of species) that have been met with varying levels of success. Moving forward, we advocate hybrid approaches that manage fresh waters as crucial ecosystems for human life support as well as essential hotspots of biodiversity and ecological function. Efforts to reverse global trends in freshwater degradation now depend on bridging an immense gap between the aspirations of conservation biologists and the accelerating rate of species endangerment.
Interactive effects of land use, grazing and environment on frogs in an agricultural landscape
- Pulsford, Stephanie, Barton, Philip, Driscoll, Don, Lindenmayer, David
- Authors: Pulsford, Stephanie , Barton, Philip , Driscoll, Don , Lindenmayer, David
- Date: 2019
- Type: Text , Journal article
- Relation: Agriculture, Ecosystems and Environment Vol. 281, no. (2019), p. 25-34
- Full Text: false
- Reviewed:
- Description: Improved management of human-modified landscapes must be part of global efforts to combat biodiversity loss. We aimed to identify which land management types and environmental factors influenced the use of grazing landscapes by frogs. We surveyed frog assemblages in remnant vegetation, four different paddock types (pasture, linear planting, coarse woody debris addition and fence), and two grazing regimes (continuous and rotational). Frogs were surveyed using pitfall and funnel traps in twelve grazing farms in south-eastern Australia. We found that grazed agricultural landscapes provide important habitats for a variety of species of frogs and that frog assemblages were influenced by both farm management type and environmental variables, and their interactions. Total frog abundance increased with proximity to water more strongly in remnants compared to paddocks. This difference in response may be due to different traits and behaviours of frogs in remnants compared to frogs in open paddocks. Rare frog species richness and abundance of a common species (Limnodynastes tasmaniensis) increased with taller ground cover in remnants but no such relationship occurred in paddocks. Different types of predation risk in remnants compared to paddocks may result in greater ground cover shelter requirements in remnants, as vegetation structure can strongly influence predation. Total frog species richness increased more rapidly with higher rainfall in continuously grazed versus rotationally grazed farms. Higher rainfall was associated with taller ground cover. Continuously grazed farms had shorter average ground cover than rotationally grazed farms and the increased ground cover height associated with more rain may bring ground cover to a height better able to provide shelter and reduce desiccation risk for frogs. Our study highlights the importance of both land management practices and environmental conditions and their interaction in shaping frog assemblages. Improved frog biodiversity conservation may be achieved in grazing landscapes by retaining patches of remnant vegetation, maintaining water bodies such as farm dams, and maintaining tall ground cover within vegetation remnants. © 2019 Elsevier B.V.
Seed germination ecology of Bidens pilosa and its implications for weed management
- Chauhan, Bhagirath, Ali, Hafiz, Florentine, Singarayer
- Authors: Chauhan, Bhagirath , Ali, Hafiz , Florentine, Singarayer
- Date: 2019
- Type: Text , Journal article
- Relation: Scientific Reports Vol. 9, no. 1 (2019), p.
- Full Text:
- Reviewed:
- Description: It is now widely recognized that Bidens pilosa has become a problematic broadleaf weed in many ecosystems across the world and, particularly in the light of recent climate change conditions, closer management strategies are required to curtail its impact on agricultural cropping. In this investigation, experiments were conducted to evaluate the effect of environmental factors on the germination and emergence of B. pilosa, and also on the response of this weed to commonly available post-emergence herbicides in Australia. The environmental factors of particular interest to this current work were the effect of light and temperature, salinity, burial depth and moisture on B. pilosa since these are key management issues in Australian agriculture. In addition, the effects of a number of commonly used herbicides were examined, because of concerns regarding emerging herbicide resistance. In the tested light/dark regimes, germination was found to be higher at fluctuating day/night temperatures of 25/15 °C and 30/20 °C (92–93%) than at 35/25 °C (79%), whilst across the different temperature ranges, germination was higher in the light/dark regime (79–93%) than in complete darkness (22–38%). The standard five-minute temperature pretreatment required for 50% inhibition of maximum germination was found to be 160 °C, and it was further shown that no seeds germinated at temperatures higher than 240 °C. With regard to salinity, some B. pilosa seeds germinated (3%) in 200 mM sodium chloride (NaCl) but all failed to germinate at 250 mM NaCl. Germination declined from 89% to 2% as the external osmotic potential decreased from 0 to −0.6 MPa, and germination ceased at −0.8 MPa. Seeding emergence of B. pilosa was maximum (71%) for seeds placed on the soil surface and it was found that no seedlings emerged from a depth of 8 cm or greater. A depth of 3.75 cm was required to inhibit the seeds to 50% of the maximum emergence. In this study, application of glufosinate, glyphosate and paraquat provided commercially acceptable control levels (generally accepted as >90%) when applied at the four-leaf stage of B. pilosa. However, none of the herbicide treatments involved in this study provided this level of control when applied at the six-leaf stage. In summary, B. pilosa germination has been clearly shown to be stimulated by light and thus its emergence was greatest from the soil surface. This suggests that infestation from this weed will remain as a problem in no-till conservation agriculture systems, the use of which is increasing now throughout the world. It is intended that information generated from this study be used to develop more effective integrated management programs for B. pilosa and similar weeds in commercial agricultural environments which are tending toward conservation approaches. © 2019, The Author(s).
- Authors: Chauhan, Bhagirath , Ali, Hafiz , Florentine, Singarayer
- Date: 2019
- Type: Text , Journal article
- Relation: Scientific Reports Vol. 9, no. 1 (2019), p.
- Full Text:
- Reviewed:
- Description: It is now widely recognized that Bidens pilosa has become a problematic broadleaf weed in many ecosystems across the world and, particularly in the light of recent climate change conditions, closer management strategies are required to curtail its impact on agricultural cropping. In this investigation, experiments were conducted to evaluate the effect of environmental factors on the germination and emergence of B. pilosa, and also on the response of this weed to commonly available post-emergence herbicides in Australia. The environmental factors of particular interest to this current work were the effect of light and temperature, salinity, burial depth and moisture on B. pilosa since these are key management issues in Australian agriculture. In addition, the effects of a number of commonly used herbicides were examined, because of concerns regarding emerging herbicide resistance. In the tested light/dark regimes, germination was found to be higher at fluctuating day/night temperatures of 25/15 °C and 30/20 °C (92–93%) than at 35/25 °C (79%), whilst across the different temperature ranges, germination was higher in the light/dark regime (79–93%) than in complete darkness (22–38%). The standard five-minute temperature pretreatment required for 50% inhibition of maximum germination was found to be 160 °C, and it was further shown that no seeds germinated at temperatures higher than 240 °C. With regard to salinity, some B. pilosa seeds germinated (3%) in 200 mM sodium chloride (NaCl) but all failed to germinate at 250 mM NaCl. Germination declined from 89% to 2% as the external osmotic potential decreased from 0 to −0.6 MPa, and germination ceased at −0.8 MPa. Seeding emergence of B. pilosa was maximum (71%) for seeds placed on the soil surface and it was found that no seedlings emerged from a depth of 8 cm or greater. A depth of 3.75 cm was required to inhibit the seeds to 50% of the maximum emergence. In this study, application of glufosinate, glyphosate and paraquat provided commercially acceptable control levels (generally accepted as >90%) when applied at the four-leaf stage of B. pilosa. However, none of the herbicide treatments involved in this study provided this level of control when applied at the six-leaf stage. In summary, B. pilosa germination has been clearly shown to be stimulated by light and thus its emergence was greatest from the soil surface. This suggests that infestation from this weed will remain as a problem in no-till conservation agriculture systems, the use of which is increasing now throughout the world. It is intended that information generated from this study be used to develop more effective integrated management programs for B. pilosa and similar weeds in commercial agricultural environments which are tending toward conservation approaches. © 2019, The Author(s).
Exploring a flow regime and its historical changes downstream of an urbanised catchment
- Ebbs, David, Dahlhaus, Peter, Barton, Andrew, Kandra, Harpreet
- Authors: Ebbs, David , Dahlhaus, Peter , Barton, Andrew , Kandra, Harpreet
- Date: 2018
- Type: Text , Conference paper
- Relation: 10th International Conference on Water Sensitive Urban Design: Creating water sensitive communities (WSUD 2018 & Hydropolis 2018), Perth, Western Australia p. 131-141
- Full Text:
- Reviewed:
- Description: The rapid growth of Ballarat's urban area, an inland city of approximately 100,000 people in south-eastern Australia, suggests that it is suitable for stormwater capture and reuse. With a threefold increase in the number of dwellings in recent decades, along with a 90% increase in their average size, it should follow that there is evidence of more flow being generated from the urban areas. However, while additional runoff from the growth of impervious areas may be occurring, the overall flow in the receiving river has dramatically reduced with a 60% decrease in the rainfall-runoff relationship since 1997. This reduction in river flow seems disproportionate to any association with the Millennium Drought which occurred during 1997 to 2009. The evidence of river flow has been complicated by other changes in the catchment. A change in the rainfall-runoff relationship has been identified in other similar catchments, and may lead to significant impacts on water resource management over the long term. To better understand the impacts on river flow downstream of an urbanised catchment, the flow has been partitioned into various components over time using the daily stream flow data available from 1957. Base flow, calculated as the stream flow after periods of four or more days without rain, has decreased. Transfers, predominantly from other catchments for use as potable supply and entering the river via the waste water treatment plant, have remained steady, but now make up the vast majority of dry weather flow. While climatic variations have impacted the river significantly the actual streamflow reduction has been twice that predicted by data from the Australian Water Resources Assessment. A significant increase in the number of small farm dams due to the expansion of peri-urban living around Ballarat explains a further portion of the flow reduction. This paper highlights multiple factors which influence river flow and demonstrates how increases in urbanised area do not necessarily create additional river flow at larger aggregate scales. The investigation therefore provides a cautionary tale around assumptions of stormwater harvesting and any perceived benefit to river flow, and provides insights into the importance of collecting water information of the correct type and scale to help inform future integrated urban water management efforts.
- Authors: Ebbs, David , Dahlhaus, Peter , Barton, Andrew , Kandra, Harpreet
- Date: 2018
- Type: Text , Conference paper
- Relation: 10th International Conference on Water Sensitive Urban Design: Creating water sensitive communities (WSUD 2018 & Hydropolis 2018), Perth, Western Australia p. 131-141
- Full Text:
- Reviewed:
- Description: The rapid growth of Ballarat's urban area, an inland city of approximately 100,000 people in south-eastern Australia, suggests that it is suitable for stormwater capture and reuse. With a threefold increase in the number of dwellings in recent decades, along with a 90% increase in their average size, it should follow that there is evidence of more flow being generated from the urban areas. However, while additional runoff from the growth of impervious areas may be occurring, the overall flow in the receiving river has dramatically reduced with a 60% decrease in the rainfall-runoff relationship since 1997. This reduction in river flow seems disproportionate to any association with the Millennium Drought which occurred during 1997 to 2009. The evidence of river flow has been complicated by other changes in the catchment. A change in the rainfall-runoff relationship has been identified in other similar catchments, and may lead to significant impacts on water resource management over the long term. To better understand the impacts on river flow downstream of an urbanised catchment, the flow has been partitioned into various components over time using the daily stream flow data available from 1957. Base flow, calculated as the stream flow after periods of four or more days without rain, has decreased. Transfers, predominantly from other catchments for use as potable supply and entering the river via the waste water treatment plant, have remained steady, but now make up the vast majority of dry weather flow. While climatic variations have impacted the river significantly the actual streamflow reduction has been twice that predicted by data from the Australian Water Resources Assessment. A significant increase in the number of small farm dams due to the expansion of peri-urban living around Ballarat explains a further portion of the flow reduction. This paper highlights multiple factors which influence river flow and demonstrates how increases in urbanised area do not necessarily create additional river flow at larger aggregate scales. The investigation therefore provides a cautionary tale around assumptions of stormwater harvesting and any perceived benefit to river flow, and provides insights into the importance of collecting water information of the correct type and scale to help inform future integrated urban water management efforts.
Losing stormwater: 60 years of urbanisation and reduced downstream flow
- Ebbs, David, Dahlhaus, Peter, Barton, Andrew, Kandra, Harpreet
- Authors: Ebbs, David , Dahlhaus, Peter , Barton, Andrew , Kandra, Harpreet
- Date: 2018
- Type: Text , Conference paper
- Relation: 10th International Conference on Water Sensitive Urban Design: Creating water sensitive communities (WSUD 2018 & Hydropolis 2018), 12-15 February 2018, Perth, Western Australia p. 142-151
- Full Text:
- Reviewed:
- Description: The potential for stormwater to supplement traditional water supplies from upstream catchments or groundwater is high, with claims that the quantity of additional runoff from impervious surfaces in a modern city in a temperate climate is greater than the total potable water demand. To ensure the success of Integrated Urban Water Management, it must consider the broad context of catchment management and the cumulative effect of all factors including river health. Ballarat, an inland city of approximately 100,000 people in south-eastern Australia, has many attributes necessary to potentially exploit stormwater. Given the doubling of population, tripling of residences and 90% increase in average residence size over the past 60 years, over which time flow data is available for the downstream waterway, it might be expected that the flow in the river downstream of the city within the catchment would reflect additional stormwater runoff. However, no increase in flow was detected between 1957 and 1996 while flow over the past 20 years has reduced by 60%. A water balance shows this decrease was not due to extractions as the stream has been a consistent net receiver of water from other catchments. Modelling data from the Australian Water Resources Assessment indicates that the reduction in streamflow is double what might be expected due to climatic variations. Between 1957 and 1996 there was no significant difference between modelled runoff and actual flow, however from 1997 onwards there is a significant divergence. While lower runoff may be expected during the period of drought, the rainfall-runoff relationship does not return to previous levels during latter years of rainfall. The effect is greater during higher flow months, which has significance when identifying potential additional water resources. Base flow has been reduced to the point where dry weather flow is reliant on waste water treatment plant and mine discharge. This study indicates that while impervious surfaces generate higher runoff which can cause environmental damage, making stormwater an attractive water source, consideration must be given to the impacts on the whole catchment when assessing alternative supply options.
- Authors: Ebbs, David , Dahlhaus, Peter , Barton, Andrew , Kandra, Harpreet
- Date: 2018
- Type: Text , Conference paper
- Relation: 10th International Conference on Water Sensitive Urban Design: Creating water sensitive communities (WSUD 2018 & Hydropolis 2018), 12-15 February 2018, Perth, Western Australia p. 142-151
- Full Text:
- Reviewed:
- Description: The potential for stormwater to supplement traditional water supplies from upstream catchments or groundwater is high, with claims that the quantity of additional runoff from impervious surfaces in a modern city in a temperate climate is greater than the total potable water demand. To ensure the success of Integrated Urban Water Management, it must consider the broad context of catchment management and the cumulative effect of all factors including river health. Ballarat, an inland city of approximately 100,000 people in south-eastern Australia, has many attributes necessary to potentially exploit stormwater. Given the doubling of population, tripling of residences and 90% increase in average residence size over the past 60 years, over which time flow data is available for the downstream waterway, it might be expected that the flow in the river downstream of the city within the catchment would reflect additional stormwater runoff. However, no increase in flow was detected between 1957 and 1996 while flow over the past 20 years has reduced by 60%. A water balance shows this decrease was not due to extractions as the stream has been a consistent net receiver of water from other catchments. Modelling data from the Australian Water Resources Assessment indicates that the reduction in streamflow is double what might be expected due to climatic variations. Between 1957 and 1996 there was no significant difference between modelled runoff and actual flow, however from 1997 onwards there is a significant divergence. While lower runoff may be expected during the period of drought, the rainfall-runoff relationship does not return to previous levels during latter years of rainfall. The effect is greater during higher flow months, which has significance when identifying potential additional water resources. Base flow has been reduced to the point where dry weather flow is reliant on waste water treatment plant and mine discharge. This study indicates that while impervious surfaces generate higher runoff which can cause environmental damage, making stormwater an attractive water source, consideration must be given to the impacts on the whole catchment when assessing alternative supply options.
From museum to living cultural landscape : governing Tasmania’s wilderness world heritage
- Lee, Emma, Richardson, Benjamin
- Authors: Lee, Emma , Richardson, Benjamin
- Date: 2017
- Type: Text , Journal article
- Relation: Australian Indigenous Law Review Vol. 20, no. 1 (2017), p. 78-107
- Full Text: false
- Reviewed:
- Description: At Melaleuca, in the remote southwest of the Tasmanian Wilderness World Heritage Area ('TWWHA'), visitors may encounter the Needwonnee Aboriginal Walk. Established in 2011 by the Tasmanian Parks and Wildlife Service in consultation with the Tasmanian Aboriginal Land and Sea Council, the Walk is an interpretive nature trail over 1.2 kilometres that educates visitors about the lives of this ancient Aboriginal culture and their environs. Most of the interpretive installations are ephemeral, fashioned from organic materials in the local landscape, and include huts, tools, baskets, shell necklaces and a paperbark canoe. The area today is unoccupied except for the few intrepid tourists seeking an iconic 'wilderness' experience. Despite the good intentions behind creation of the Needwonnee Aboriginal Walk, it conveys the impression of a past or extinct culture now memorialised in an outdoors museum, without any voice and no longer heard. Yet many Aboriginal representatives in Tasmania see the TWWHA as 'belonging to a much larger living cultural landscape and seascape' that should be managed jointly with Aboriginal communities.