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Journal articles on the topic 'Water conservation Victoria History'

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Author: Grafiati

Published: 10 December 2022

Last updated: 29 January 2023

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1

Atazadeh, Ehsan, Andrew Barton, and Jafar Razeghi. "Importance of environmental flows in the Wimmera catchment, Southeast Australia." Limnological Review 20, no. 4 (December 1, 2020): 185–98. http://dx.doi.org/10.2478/limre-2020-0018.

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Abstract In this paper the environment, climate, vegetation, indigenous and European settlement history, stream flow patterns, water quality and water resources development in western Victoria, Australia are studied. The last part of the paper focuses on the MacKenzie River, a tributary of the Wimmera River located on the northern slopes of the Grampians Ranges in western Victoria, Australia. Water release along the MacKenzie River was regulated to improve water quality, stream condition and river health especially in the downstream reaches. The upstream section tends to receive water most days of the year due to releases to secure the requirements of water supply for the city of Horsham and its recreational and conservation values, which is diverted into Mt Zero Channel. Below this the middle and downstream sections receive a more intermittent supply. Annually, a total of 10,000 dam3 of water is released from Wartook Reservoir into the MacKenzie River. Of this volume, only about 4,000 dam3 was released explicitly for environmental purposes. The remaining 6,000 dam3 was released to meet consumptive demands and to transfer water to downstream reservoirs. The empirical data and models showed the lower reaches of the river to be in poor condition under low flows, but this condition improved under flows of 35 dam3 per day, as indicated. The results are presented to tailor discharge and duration of the river flows by amalgamation of consumptive and environmental flows to improve the condition of the stream, thereby supplementing the flows dedicated to environmental outcomes. Ultimately the findings can be used by management to configure consumptive flows that would enhance the ecological condition of the MacKenzie River.

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2

Hancock, Mary E. "Spring in Victoria." Public Historian 26, no. 4 (2004): 83–85. http://dx.doi.org/10.1525/tph.2004.26.4.83.

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3

Thomas, Keith. "The Victoria History of Herefordshire: Colwall." Landscape History 42, no. 1 (January 2, 2021): 153–54. http://dx.doi.org/10.1080/01433768.2021.1928907.

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4

Keen, Gordon. "Water conservation at ExxonMobil facilities." APPEA Journal 48, no. 1 (2008): 261. http://dx.doi.org/10.1071/aj07017.

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As a result of Australia’s long-running drought there has been renewed community focus on water as a vital resource. In response to this and as part of ExxonMobil’s environmental performance improvement program, local water conservation teams have been established at multiple ExxonMobil Australia sites in Victoria. This has stimulated an increased focus on water as a precious resource across the entire workforce resulting in additional emphasis on pro-active planning for water conservation. In one initiative, freshwater use at Altona Refinery was reduced by one megalitre per day. This was achieved through multiple initiatives such as optimising use of standby equipment and the frequency of flushing operations. At Long Island Point, an engineering study supported by the water conservation team identified a cost effective means of ensuring that water used in the flare-stacks is synchronised with the volume of gas being processed at the flare-tip. This initiative is on track to reduce site fresh water consumption since late February 2007 by up to 55 megalitres of potable water a year. Since 2001 Longford has successfully reduced water use by 40% from 5 ML a day in 2001 to 3 ML a day in 2006. Similarly, 2006 water usage for Long Island Point was the lowest on record. Now, with water conservation teams firmly established on these and other sites and further projects yet to be implemented, water consumption is set to decline even further. Overall water saving initiatives have been aligned with increased regulatory and community expectations to reduce water usage, driven by the drought conditions.

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5

Molyneux, Nicholas A. D. "The Victoria County History of Herefordshire: Bosbury." Vernacular Architecture 50, no. 1 (January 1, 2019): 135–36. http://dx.doi.org/10.1080/03055477.2019.1677425.

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6

Schlafrig, J., J. Sturman, G. Ho, and K. Mathew. "Water auditing: the case for statutory requirements." Water Supply 8, no. 6 (December 1, 2008): 597–601. http://dx.doi.org/10.2166/ws.2008.112.

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Drought across swathes of Australia, highlights our need for water conservation in addition to seeking new sources of water (demand and supply-side resource options). Water conservation or efficiency improvement is currently a non-systematic process along the lines of ‘if we do such and such then we will save so much water’. Such an approach is ad-hoc and only has the appearance of being ‘quantitative’. We would class it as qualitative, or maybe advanced qualitative water conservation. True quantitative or structured water auditing of non-domestic water consumption is an iterative, systematic and documented process of obtaining reliable use data, validated by a closure approach. Opportunities are identified for water use reduction, water reuse, recycling and for water resource substitution. Financial assessment of savings in cost against cost of measures will provide a payback period. A water management strategy or Water Management Plan (WMP) as it is known in Victoria, Australia, is devised which is consistent with legal requirements, the enterprise's environmental policy and its movement towards sustainable development. Regulators have legislated for mandatory WMPs and audits in Victoria, but this is the only state so far to do this. Mandatory water auditing should be an uncontested choice as it can only provide a win:win situation regulation to the private sector. We argue that only the systematic process provided by structural water auditing constitutes quantitative water conservation. Further, statutory obligation for water users to engage in the water auditing process will give the broad, systematic quantitative information, and based upon which optimal water management strategies or WMPs can be devised. This will ensure a rational approach to our future water needs and the needs of our environment. It is anticipated that voluntary auditing in the arenas not mandated will increase in the long term if this is done.

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7

Mamboleo, Martin. "Evaluation and use of existing economic valuation methodologies in the management of Lake Victoria’s water resources." RUDN Journal of Ecology and Life Safety 29, no. 4 (December 30, 2021): 341–54. http://dx.doi.org/10.22363/2313-2310-2021-29-4-341-354.

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Lake Victoria is the second-largest freshwater lake in the world, with an eco-system critical to 25-30 million inhabitants of Kenya, Uganda, Tanzania, Rwanda, and Burundi who live in the lake basin. The lake provides several ecosystem services from inland waterway transport, fisheries to hydropower and supports many different industries such as tourism, trade, and wildlife. However, Lake Victorias ecosystem management has been highly extractive; hence its water resources are either inefficiently or overused. This is because the value of this resource is either unknown or underestimated. The main purpose of the research was to contribute to Lake Victorias conservation efforts by providing the best techniques that can be used to assess the value of this resource and develop appropriate policies for the sustainable management of the lake. The study reviewed relevant literature on the economic assessment methods of environmental resources in the context of water management. Search engines such as Google Scholar, Web of Science, and ScienceDirect were used for it. The study suggests methods for economic valuation of Lake Victoria water ecosystem for each service. The proposed techniques can be used for assessing the value and benefits of conservation and restoration of Lake Victoria ecosystem.

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8

Gordon, Tammy S. "Exhibit Review: David Bowie Is, Victoria and Albert Museum." Public Historian 35, no. 3 (August 1, 2013): 116–19. http://dx.doi.org/10.1525/tph.2013.35.3.116.

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9

Fraser, Liana. "RESEARCH INTO THE HISTORY OF CONSERVATION AT THE NATIONAL GALLERY OF VICTORIA." AICCM Bulletin 19, no. 3-4 (December 1994): 25–37. http://dx.doi.org/10.1179/bac.1994.19.3-4.002.

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10

Morgan, Philip. "The Victoria History of Staffordshire: Tamworth and Drayton Bassett." Landscape History 43, no. 1 (January 2, 2022): 141–42. http://dx.doi.org/10.1080/01433768.2022.2065100.

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11

Seebeck, John. "The conservation of mammals in Victoria development of legislative controls." Journal of Australian Studies 19, no. 45 (June 1995): 53–65. http://dx.doi.org/10.1080/14443059509387227.

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12

Taylor, Benedict. "Sullivan, Scott andIvanhoe: Constructing Historical Time and National Identity in Victorian Opera." Nineteenth-Century Music Review 9, no. 2 (December 2012): 295–321. http://dx.doi.org/10.1017/s1479409812000316.

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Arthur Sullivan's Walter Scott-based operaIvanhoe, despite attaining great success at its 1891 premiere, has since quickly fallen from musicological grace. Substantive criticism of this work in the twentieth century has concentrated on the static, tableau-like dramaturgy of the opera, a lack of dramatic coherence, and its undeniably conservative musical language. Taking its bearings from such criticisms this paper explores Sullivan's problematicmagnum opusfrom the perspective of its relationship with time, understood from multiple levels – his opera's musical-dramaturgical, historical, and music-historical temporalities. Starting from Michael Beckerman's insightful analysis of what he terms the ‘iconic mode’ in Sullivan's music,Ivanhoecan be viewed as an attempt at creating a different type of dramaturgical paradigm that emphasizes stasis and stability located in the past – highly apt for a work seeking both to crystallize past history and to found a new tradition for future English opera. Moreover, investigating this work and the composer's stated aesthetic concerns more closely reveal a conscious desire to opt out of continental European narratives of musical progress and build a composite, pageant-like vision of English history, therefore inevitably partaking in a process of constructing national identity. These features are teased out in the context of Scott's impact on the Victorian mind and their affinities with other historicist tendencies in the arts such as the Pre-Raphaelite movement.

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13

Kipp, James A. "Water in Kentucky: Natural History, Communities, and Conservation." Groundwater 56, no. 1 (November 9, 2017): 7. http://dx.doi.org/10.1111/gwat.12613.

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14

van den Broek, Karlijn L., Joseph Luomba, Horace O. Onyango, Moses Musobya, and Sina A. Klein. "A framework for co-developing conservation research projects with stakeholders: A Lake Victoria case study." Lakes & Reservoirs: Research & Management 25, no. 4 (December 2020): 403–12. http://dx.doi.org/10.1111/lre.12342.

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15

Mwanja, W. W. "The role of satellite water bodies in the evolution and conservation of Lake Victoria Region fishes." African Journal of Ecology 42, s1 (August 2004): 14–20. http://dx.doi.org/10.1111/j.1365-2028.2004.00455.x.

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16

Harris, Edwyna. "Development and Damage: Water and Landscape Evolution in Victoria, Australia." Landscape Research 31, no. 2 (April 2006): 169–81. http://dx.doi.org/10.1080/01426390600638687.

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17

Lennon, Jane, and Katie Davis. "Cultural landscape protection at Lake Victoria, a managed water supply." Landscape Research 45, no. 3 (June 11, 2019): 265–79. http://dx.doi.org/10.1080/01426397.2019.1626356.

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18

Vanderkelen, Inne, Nicole P. M. van Lipzig, and Wim Thiery. "Modelling the water balance of Lake Victoria (East Africa) – Part 2: Future projections." Hydrology and Earth System Sciences 22, no. 10 (October 25, 2018): 5527–49. http://dx.doi.org/10.5194/hess-22-5527-2018.

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Abstract. Lake Victoria, the second largest freshwater lake in the world, is one of the major sources of the Nile river. The outlet to the Nile is controlled by two hydropower dams of which the allowed discharge is dictated by the Agreed Curve, an equation relating outflow to lake level. Some regional climate models project a decrease in precipitation and an increase in evaporation over Lake Victoria, with potential important implications for its water balance and resulting level. Yet, little is known about the potential consequences of climate change for the water balance of Lake Victoria. In this second part of a two-paper series, we feed a new water balance model for Lake Victoria presented in the first part with climate simulations available through the COordinated Regional Climate Downscaling Experiment (CORDEX) Africa framework. Our results reveal that most regional climate models are not capable of giving a realistic representation of the water balance of Lake Victoria and therefore require bias correction. For two emission scenarios (RCPs 4.5 and 8.5), the decrease in precipitation over the lake and an increase in evaporation are compensated by an increase in basin precipitation leading to more inflow. The future lake level projections show that the dam management scenario and not the emission scenario is the main controlling factor of the future water level evolution. Moreover, inter-model uncertainties are larger than emission scenario uncertainties. The comparison of four idealized future management scenarios pursuing certain policy objectives (electricity generation, navigation reliability and environmental conservation) uncovers that the only sustainable management scenario is mimicking natural lake level fluctuations by regulating outflow according to the Agreed Curve. The associated outflow encompasses, however, ranges from 14 m3 day−1 (−85 %) to 200 m3 day−1 (+100 %) within this ensemble, highlighting that future hydropower generation and downstream water availability may strongly change in the next decades even if dam management adheres to he Agreed Curve. Our results overall underline that managing the dam according to the Agreed Curve is a key prerequisite for sustainable future lake levels, but that under this management scenario, climate change might potentially induce profound changes in lake level and outflow volume.

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19

Gupta, D. V. Satya, and Barry T. Hlidek. "Frac-Fluid Recycling and Water Conservation: A Case History." SPE Production & Operations 25, no. 01 (February 1, 2010): 65–69. http://dx.doi.org/10.2118/119478-pa.

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20

Karlen, Douglas L., Gary A. Peterson, and Dwayne G. Westfall. "Soil and Water Conservation: Our History and Future Challenges." Soil Science Society of America Journal 78, no. 5 (August 22, 2014): 1493–99. http://dx.doi.org/10.2136/sssaj2014.03.0110.

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21

Turner, Sam. "Water Meadows: History, Ecology, Conservation. Edited by HadrianCookand TomWilliamson." Archaeological Journal 164, no. 1 (January 2007): 296–97. http://dx.doi.org/10.1080/00665983.2007.11020738.

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22

Mamboleo, Martin, and Aggrey Adem. "Estimating willingness to pay for the conservation of wetland ecosystems, Lake Victoria as a case study." Knowledge & Management of Aquatic Ecosystems, no. 423 (2022): 22. http://dx.doi.org/10.1051/kmae/2022020.

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Wetlands are critical habitats for human health, well-being, ecological integrity, and national development. Freshwater ecosystems supply a variety of products and services, yet they are frequently underappreciated. Long-term economic viability necessitates an understanding of the role that finite natural resources play in economic activity and production, as well as the connection people have with, and the value they place on, those natural resources. The purpose of this study was to determine peoples' Willingness to Pay (WTP) for the maintenance of the Lake Victoria Ecosystem. The research was conducted in the Kenyan counties of Migori, Siaya, Busia, Kisumu, and Homa Bay. Using the Statistical Package for Social Sciences (SPSS), the gathered data were coded, cleaned, and analyzed. According to the findings, 40.9% of locals were prepared to spend roughly KES 500 for the conservation initiative. From the study, Lake Victoria ecosystem in Kenya had a total WTP of KES 616,279,069 each year. According to the findings, those who benefitted directly from the lake's resources were more inclined to pay for the program. This empirical research is a helpful input for identifying market segments among inhabitants, which may aid in generating more cash for biodiversity conservation in the Lake Victoria Basin.

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23

Clemann, Nick. "Cold-blooded indifference: a case study of the worsening status of threatened reptiles from Victoria, Australia." Pacific Conservation Biology 21, no. 1 (2015): 15. http://dx.doi.org/10.1071/pc14901.

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For the first time in the history of life, a biodiversity extinction crisis is being driven by a single species – humans. Humans also have unprecedented control over both the threats and conservation actions that influence this crisis. When prioritising conservation actions, innate human bias often favours endothermic vertebrates over other fauna. Reptiles are the least popular terrestrial vertebrate class, and consequently are particularly disadvantaged in terms of being listed as threatened and receiving conservation management. Despite 30 years of formally evaluating and listing threatened vertebrates in the Australian State of Victoria, there is a strong worsening trend in the conservation status of all faunal groups. The deteriorating status of Victorian reptiles mirrors worrying documented trends in reptile conservation status around the world. I review the history of listing threatened reptiles in Victoria, detail worsening trends in their conservation status, and suggest that, as in other parts of the world, the threats common to most listed taxa are climate change, habitat loss and degradation, and elevated rates of predation by exotic predators. I also identify poor advice and planning as a considerable threat to Victorian reptiles; this threat is rarely reported, but may be more pervasive than currently recognised. I argue that what is needed for most reptiles to have the greatest chance of persisting in the long term is prevention of habitat loss and degradation, research to underpin listing and management, improved policy so that unproven management strategies are not sanctioned, and vetting of consultant’s reports so that unproven ‘mitigation’ strategies and inadequate preimpact surveys do not mask the true cost of loss and degradation of habitat.

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24

Outa, Nicholas Otieno, Edwine Omollo Yongo, James Last A. Keyombe, Erick O. Ogello, and David Namwaya Wanjala. "A review on the status of some major fish species in Lake Victoria and possible conservation strategies." Lakes & Reservoirs: Research & Management 25, no. 1 (January 14, 2020): 105–11. http://dx.doi.org/10.1111/lre.12299.

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25

Henzell, Steve. "A long history of wet gas pipelines in Victoria." APPEA Journal 55, no. 2 (2015): 415. http://dx.doi.org/10.1071/aj14050.

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Australia's relative isolation and the harsh environment in Bass Strait have led to many innovations in offshore oil and gas developments. The initial developers were moving into frontier territory when Bass Strait was developed, with the harsh sea state and the water depths presenting major challenges. The original development of Bass Strait in the 1960s was tied to a wet gas pipeline philosophy, which was a novel step-out from normal industry practice. For example, the North Sea developments, which started shortly after Bass Strait, adopted dry gas export pipelines and required substantially larger platforms to process the gas for export. The cold waters of Bass Strait require an active hydrate management strategy and the success of hydrate inhibitors has been a key element in using wet gas pipelines. The initial development relied on methanol for hydrate inhibition, but this changed to a glycol-based hydrate inhibitor within 10 years of production start-up, due to challenges in the onshore production facilities. The use of mono-ethylene glycol for management of wet gas pipelines was demonstrated in Bass Strait. The success of the initial developments has given operators the confidence to pursue marginal field developments that rely on wet gas transport to the beach. The Minerva, Casino, Thylacine and Longtom gas field developments in Bass Strait have all adopted the same strategy, in part because of the confidence provided from operating the initial developments for many years.

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26

Brown, Geoff W., Peter Robertson, and Ben G. Fanson. "Digging in: a review of the ecology and management of a threatened reptile with a small disjunct distribution – the heath skink, Liopholis multiscutata, in Victoria, south-eastern Australia." Pacific Conservation Biology 25, no. 3 (2019): 222. http://dx.doi.org/10.1071/pc17057.

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The central issue for species that are highly localised habitat specialists and occur in relatively small numbers is vulnerability to extinction processes. The heath skink, Liopholis multiscutata, is considered Critically Endangered in Victoria, in part because it is restricted to essentially four small and highly disjunct populations in semiarid mallee dunefields. It provides an example of a rare and cryptic species that is especially vulnerable to decline and consequently provides management challenges. Here, we crystallise available information on the ecology and life history of this threatened lizard, and review monitoring data to evaluate population status, primary threats and management imperatives. There has been a substantial decrease across the known range of the lizard in Victoria, most likely due to predation and fire. Recent monitoring of the four potentially viable populations revealed a general trend of decline. Recommendations for research and management priorities for the lizard in Victoria are provided; generally, these include further exploration of the lizard’s phylogeny and ecology, and ongoing monitoring of the trajectory of the lizard’s population status, threats to the lizard’s persistence and the effectiveness of management actions employed to ameliorate extinction threats.

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27

Pringle, Robert M. "The Nile Perch in Lake Victoria: Local Responses and Adaptations." Africa 75, no. 4 (November 2005): 510–38. http://dx.doi.org/10.3366/afr.2005.75.4.510.

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AbstractIntroduced into Lake Victoria in the 1950s, the Nile perch has gained fame for prompting rapid regional economic growth and for driving scores of endemic fish species into extinction. This study uses oral and archival data to trace the historical development of the Nile perch fishery on Lake Victoria. Particular emphasis is placed on local responses and adaptations to (1) the Nile perch itself; (2) the abrupt integration of the Lake Victoria fishery with the global economy; and (3) the ecological changes that the Nile perch has precipitated. I also attempt to situate Lake Victoria's history in the larger debate about environment and African livelihoods. Because so much of Lake Victoria's species diversity has been lost within one generation – biologist E. O. Wilson (1992) has called this process ‘the most catastrophic extinction episode of recent history’ – the lake is an ideal case study with which to examine ‘local’ perceptions of biodiversity. The data suggest that species diversity is important and highly resolved in the worldviews of Lake Victoria's fishermen; yet, although the will for conservation is present, poverty obstructs its realization. These findings are discussed in relation to other work on indigenous environmental knowledge and ecological ethics. I argue that ‘intrinsic’ valuation of species diversity and ecological processes may be more widespread in rural societies than has traditionally been assumed by natural and social scientists, and that the preponderance of social studies highlighting oppositions between Western science and ethno-science, and between conservation concerns and local livelihoods, may have blinded us to synergies between them. More effort is needed to understand fully the nuances in these complex local ecological worldviews, perhaps via ‘social histories of extinction’ that explore the local consequences of species loss.

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28

Aloo, Peninah A., J. Njiru, J. S. Balirwa, and C. S. Nyamweya. "Impacts of Nile Perch,Lates niloticus, introduction on the ecology, economy and conservation of Lake Victoria, East Africa." Lakes & Reservoirs: Research & Management 22, no. 4 (November 28, 2017): 320–33. http://dx.doi.org/10.1111/lre.12192.

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29

Campbell, Lachlan. "Wimmera River (Victoria, Australia) – Increasing Use of a Diminishing Resource." Water Science and Technology 21, no. 2 (February 1, 1989): 245–49. http://dx.doi.org/10.2166/wst.1989.0058.

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The Wimmera River is central western Victoria's most important river, rising in the Grampians National Park, filling storages that supply the major water supply to the vast Wimmera and Mallee regions. It passes through the Little Desert National Park, an area of significant scenic, recreation, historical and conservation value and terminates in Victoria's largest inland freshwater lakes (Lakes Hindmarsh and Albacutya). The brittleness of the whole closed Wimmera River system, and the over committal of the water resources was brought to the public's attention when appeals were lodged against the proposal to licence a discharge of high standard secondary effluent from an extended aeration oxidation ditch and lagoon treatment facility at Horsham. Residents, user and community groups, Municipal Councils and Government Departments, aware of the deterioration of the Wimmera River had somewhere to focus their attention. Victoria's and possibly Australia's longest environmental appeal, lasting twenty-five days, and a State Environment Protection Policy, determined that all major point sources of nutrients should be removed from the River. More resources for clearing of unwanted emergent weeds, more facilities for protection of Crown Land and catchments generally, and the implementation of environmental summer flows as piping of the Wimmera-Mallee Stock and Domestic System proceeds, are all required. A River Management Board with strength, wealth, good public relations and a dedication to the task could make the Wimmera River an example for all Australia and a tourist attraction of immense value to the region.

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30

Wrathmell, Susan. "A History of the County of York: East Riding (Victoria County History) X, Part One: Howdenshire: The Townships." Vernacular Architecture 52, no. 1 (January 1, 2021): 126–27. http://dx.doi.org/10.1080/03055477.2021.1996053.

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31

Zhang, Shihao, Junhe Tan, Junhang Liu, Jiaqi Wang, and Ata Tara. "Suitability Prediction and Enhancement of Future Water Supply Systems in Barwon Region in Victoria, Australia." Land 11, no. 5 (April 23, 2022): 621. http://dx.doi.org/10.3390/land11050621.

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Intensive agricultural production accompanied by the climate change impacts in post-Colonial rural landscapes have continuously increased the demand for water resources and coastal areas, showing an unprecedented water supply crisis. By taking extreme weather conditions and rainfall events for future trends, a resilient water storage facility for the landscape requires the collaborative approach of natural systems and simulation modelling techniques to develop sustainable future scenarios. In this study, an ecological suitability model is used to identify potential sites for the construction of multi-purpose dams. As part of the model structure, multi factors are classified using the patterns of changing landscapes, and then weighted overlay analysis is conducted on a Geographic Information System (GIS) platform. Compared to previous studies, this paper derives its principal impact parameters and projections based on historical land cover information. The suitability maps that are generated visually guide the geographical location of the multi-purpose dams and indicate the areas from highly suitable to least suitable, clarifying the possibility of building blue infrastructure alongside the waterways in west-central Barwon. The workflow proposes a resilient water system based on existing land characteristics and measures that future water storage capacity will be a valid increase of approximately 1.5 times. This strategy alleviates water scarcity during the dry season to benefit traditional agricultural activities. Digital calculations are utilized to demonstrate the feasibility of the experimental results, providing a methodology for regulating the distribution and supply of river flows throughout the year while retaining runoff in a hierarchical pattern at precipitation periods.

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32

Gichuki, John, Reuben Omondi, Priscillar Boera, Tom Okorut, Ally Said Matano, Tsuma Jembe, and Ayub Ofulla. "Water HyacinthEichhornia crassipes(Mart.) Solms-Laubach Dynamics and Succession in the Nyanza Gulf of Lake Victoria (East Africa): Implications for Water Quality and Biodiversity Conservation." Scientific World Journal 2012 (2012): 1–10. http://dx.doi.org/10.1100/2012/106429.

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This study, conducted in Nyanza Gulf of Lake Victoria, assessed ecological succession and dynamic status of water hyacinth. Results show that water hyacinth is the genesis of macrophyte succession. On establishment, water hyacinth mats are first invaded by native emergent macrophytes,Ipomoea aquaticaForsk., andEnydra fluctuansLour., during early stages of succession. This is followed by hippo grassVossia cuspidata(Roxb.) Griff. in mid- and late stages whose population peaks during climax stages of succession with concomitant decrease in water hyacinth biomass. Hippo grass depends on water hyacinth for buoyancy, anchorage, and nutrients. The study concludes that macrophyte succession alters aquatic biodiversity and that, since water hyacinth infestation and attendant succession are a symptom of broader watershed management and pollution problems, aquatic macrophyte control should include reduction of nutrient loads and implementing multifaceted approach that incorporates biological agents, mechanical/manual control with utilization of harvested weed for cottage industry by local communities.

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33

Jenstad, Janelle, and Erin E. Kelly. "A Curatorial Model for Teaching Renaissance Book History in Canada." Renaissance and Reformation 37, no. 4 (April 30, 2015): 81–100. http://dx.doi.org/10.33137/rr.v37i4.22641.

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Only by holding early printed books can students learn both the strangeness of the past and its oddly familiar struggle with technological innovation. Even partial collections like the one at the University of Victoria have enough rare books to serve these purposes. But how do we teach book culture and intellectual history when we do not have multiple or even representative books from many authors, countries, and sometimes whole decades? We adopt a curatorial teaching model that invites students to find, select, and chart a narrative through the materials that we do have. This article describes our curatorial projects in the hope that others will undertake similar endeavours. It also explains how the very partiality of our collection has generated wonderful opportunities for students to learn not just book history but also the history of Canadian universities, libraries, collectors, and Renaissance studies. C’est seulement en ayant des livres anciens entre les mains que les étudiants peuvent faire l’expérience de l’altérité du passé et de la familiarité des difficultés liées aux innovations technologiques. Même une collection limitée comme celle de la University of Victoria est suffisante pour atteindre ces objectifs. Mais comment peut-on enseigner l’histoire et la culture du livre et l’histoire intellectuelle lorsque nos ressources ne contiennent pas suffisamment de livres ou des livres représentatifs de plusieurs auteurs, pays, voire de décennies ? Nous avons adopté un modèle d’enseignement de la conservation invitant les étudiants à trouver, sélectionner, et élaborer un récit historique à travers les ressources auxquelles nous avons accès. Cet article décrit nos projets de conservation dans l’espoir de susciter d’autres projets similaires. Nous y expliquons aussi comment une collection même très partielle comme la nôtre a donné le jour à d’extraordinaires possibilités d’apprentissage pour les étudiants, non seulement dans le domaine de l’histoire du livre mais aussi en histoire des universités, des bibliothèques, et des collectionneurs canadiens, dans le domaine des études de la Renaissance.

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Younas, Muhammad, Shuhab D. Khan, Muhammad Qasim, and Younes Hamed. "Assessing Impacts of Land Subsidence in Victoria County, Texas, Using Geospatial Analysis." Land 11, no. 12 (December 5, 2022): 2211. http://dx.doi.org/10.3390/land11122211.

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Land subsidence is an ongoing problem negatively affecting Victoria County along the Gulf Coast. Groundwater withdrawal and hydrocarbon extraction in the County are some of the known factors behind this geological hazard. In this study, we have used geospatial analysis and a conceptual model to evaluate land subsidence. A significant decline in the groundwater level in this area was noted from 2006 to 2016. The decline in the water level correlates with the major drought events along the Gulf Coast reported in earlier studies. These results are further corroborated by the emerging hotspot analysis performed on the groundwater data. This analysis divides the study area into intensifying, sporadic, and persistent hotspots in the northwest region and intensifying, persistent coldspots in the southeast region of Victoria County. Hydrocarbon production data show high oil and gas extraction from 2017 to 2021. There are a higher number of hydrocarbon production wells in the central and southern regions of the County than elsewhere. The conceptual models relate these events and suggest the existence of subsidence in the County, through which the water and hydrocarbon reservoirs in the study area may lose their reservoir characteristics due to sediment compaction.

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MUSCOLINO, Micah S. "Tianshui’s three treasures: water and soil conservation in wartime northwest China." Journal of Modern Chinese History 13, no. 1 (January 2, 2019): 148–68. http://dx.doi.org/10.1080/17535654.2019.1624346.

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Mildwaters, Nyssa, and Danielle Measday. "Silcone-Based Solvents and Emulsions for Cleaning Natural Science Specimens: Case Studies from the Otago Museum and Museums Victoria." Biodiversity Information Science and Standards 2 (June 13, 2018): e26450. http://dx.doi.org/10.3897/biss.2.26450.

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Developed by the cosmetics industry, silicone-based solvents such as Cyclomethicone D4 and D5 and emulsifiers Velevsil Plus and KSG 350Z have found useful applications in museum conservation after being pioneered by Richard Wolbers to safety clean acrylic paint films. These products’ unique properties are also applicable for cleaning of natural science specimens. Silicone solvents are volatile and will completely evaporate away from surfaces. They have very low polarity and cannot not solubilise fats or oils, such as natural preen oils found in feathers. Low viscosity gives them the ability to flood a porous surface, such as bone, protecting it from absorbing chemicals and soiling during cleaning. Velevsil Plus and KSG 350Z provide the desirable ability to form an emulsion with water, and or solvents in a silicone based solvent carrier, allowing for the strictly controlled application of water or solvent solutions to the surface of a specimen. This poster will present case studies from the Otago Museum (Dunedin, New Zealand) and Museums Victoria (Melbourne, Australia) investigating the use of these products in cleaning natural science specimens. The experiments include the removal of an aged wax and shellac coating from a Moa (Dinonris sp.) skeleton, the removal of acrylic coatings on extremely moisture sensitive pyritized fossils, and the cleaning of soiled feathers and fur. Issues around sourcing and shipping these specialised products to Australasia will also be discussed. The successful application of paintings conservation techniques to scientific specimens demonstrates the benefits of collaboration between specialisations in conservation for developing new techniques for caring for our collections.

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Worthington, E. Barton. "The Lake Victoria Lates Saga." Environmental Conservation 16, no. 3 (1989): 266–67. http://dx.doi.org/10.1017/s0376892900009371.

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Ellis, Neil. "A history of the Geological Conservation Review." Geological Society, London, Special Publications 300, no. 1 (2008): 123–35. http://dx.doi.org/10.1144/sp300.10.

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Casanova, Michelle T., and I. Joan Powling. "What makes a swamp swampy? Water regime and the botany of endangered wetlands in western Victoria." Australian Journal of Botany 62, no. 6 (2014): 469. http://dx.doi.org/10.1071/bt14119.

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Freshwater temporary wetlands are a little-studied ecosystem worldwide. They have been recognised as critically endangered in south-eastern Australia under Australian biodiversity conservation legislation. However, little has been recorded about their hydrology, functioning or biodiversity values; i.e. the factors that make them intrinsically ‘swampy’. In this paper, we developed a simple threshold model of wetland hydrology based on historical rainfall records and calculated evaporation records matched to records and recollections of the owners of swamps, and documented water-plant and microalgal species richness. The model indicated that swamps were inundated to at least 10-cm depth in an average of 6.3 years per decade for most of the 20th century. The average dry time between inundations was 1.27 years (maximum of 4.5 years). Since 1998, the frequency of inundation appears to have decreased, and the average dry times have increased. Despite, or because of, their temporary nature, these swamps have high biodiversity values among the vegetation and the microalgae, more than has been recorded for near-by permanent wetlands. There is no evidence that a drier and warmer climate will have a negative impact on biodiversity values; however, land management is likely to be important for maintaining these systems as the climate changes.

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Crook, David A., Jed I. Macdonald, and Tarmo A. Raadik. "Evidence of diadromous movements in a coastal population of southern smelts (Retropinninae: Retropinna) from Victoria, Australia." Marine and Freshwater Research 59, no. 7 (2008): 638. http://dx.doi.org/10.1071/mf07238.

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Understanding the migratory behaviour of fishes is critical to the conservation and management of fish assemblages in coastal rivers. We analysed the otolith chemical signatures of smelt, Retropinna sp., from inland and coastal populations in mainland south-eastern Australia to determine whether individuals within coastal populations of the species were diadromous. Assessments of otolith chemical composition combined with water chemistry data were used to make inferences about the migration histories of individual fish. A proportion of the smelt collected from the freshwater reaches of a coastal river exhibited diadromous movements, with the majority of fish analysed showing evidence of estuarine or marine occupation as larvae/juveniles and a minority inhabiting freshwater throughout their life histories. A broad range in the daily ages of upstream migration into freshwater (15–106 days) and the timing of these migrations suggest that spawning and migration occur over several months during the summer/autumn period. The results of this study suggest that southern smelts are an ecologically variable taxonomic group and that conservation and management actions should take into account the range of migratory behaviours exhibited both within populations and across regions.

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Lee, Tristan, Kyall R. Zenger, Robert L. Close, and David N. Phalen. "Genetic analysis reveals a distinct and highly diverse koala (Phascolarctos cinereus) population in South Gippsland, Victoria, Australia." Australian Mammalogy 34, no. 1 (2012): 68. http://dx.doi.org/10.1071/am10035.

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Population genetics can reveal otherwise hidden information involving a species’ history in a given region. Koalas were thought to have been virtually exterminated from the Australian state of Victoria during the koala fur trade of the late 1800s. Koalas in the South Gippsland region of Victoria were examined using microsatellite markers to infer population structure and gene flow and to locate a possible remnant gene pool. The results indicate that the South Gippsland koala population had higher genetic diversity (A = 5.97, HO = 0.564) than other published Victorian populations, and was genetically distinct from other koala populations examined. South Gippsland koalas, therefore, may have survived the population reductions of the koala fur trade and now represent a remnant Victorian gene pool that has been largely lost from the remainder of Victoria. This paper illustrates that historic anthropogenic impacts have had little effect on reducing the genetic diversity of a population in the South Gippsland region. However, the South Gippsland population is now subject to threats such as logging and loss of habitat from housing and agriculture expansion. Our results suggest that the South Gippsland koalas require an alternative conservation management program.

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Sene, Kevin, Helen Houghton Carr, and Wlodek Tych. "Reflections on almost a century of hydrological studies on Africa's largest lake." Proceedings of the International Association of Hydrological Sciences 384 (November 16, 2021): 141–47. http://dx.doi.org/10.5194/piahs-384-141-2021.

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Abstract. Lake Victoria is the largest lake in Africa and its outflows strongly influence flows in the White Nile, including the availability of water for hydropower generation, irrigation and water supply. Understanding the water balance is a major challenge since the lake is large enough to influence the local climate and its catchment spans several countries. Hydrometeorological monitoring networks are also sparse in some parts of the basin. In this paper, we consider the history of water balance estimates for the lake and how the science has developed as new information and techniques have become available, including in areas such as seasonal flow forecasting and estimating the potential impacts of dam operations and climate change. These findings are placed into a wider context including the challenges arising from a changing climate and evolving ideas from international research programmes, which lead to some suggestions for future research priorities for Lake Victoria and other sub-Saharan/Rift Valley lakes.

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Lindenmayer, David, and Chris Taylor. "Diversifying Forest Landscape Management—A Case Study of a Shift from Native Forest Logging to Plantations in Australian Wet Forests." Land 11, no. 3 (March 10, 2022): 407. http://dx.doi.org/10.3390/land11030407.

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Natural forests have many ecological, economic and other values, and sustaining them is a challenge for policy makers and forest managers. Conventional approaches to forest management such as those based on maximum sustained yield principles disregard fundamental tenets of ecological sustainability and often fail. Here we describe the failure of a highly regulated approach to forest management focused on intensive wood production in the mountain ash forests of Victoria, Australia. Poor past management led to overcutting with timber yields too high to be sustainable and failing to account for uncertainties. Ongoing logging will have negative impacts on biodiversity and water production, alter fire regimes, and generate economic losses. This means there are few options to diversify forest management. The only ecologically and economically viable option is to cease logging mountain ash forests altogether and transition wood production to plantations located elsewhere in the state of Victoria. We outline general lessons for diversifying land management from our case study.

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Riley, Joanna, Jeff M. Turpin, Matt R. K. Zeale, Brynne Jayatilaka, and Gareth Jones. "Diurnal sheltering preferences and associated conservation management for the endangered sandhill dunnart, Sminthopsis psammophila." Journal of Mammalogy 102, no. 2 (April 1, 2021): 588–602. http://dx.doi.org/10.1093/jmammal/gyab024.

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Abstract Dasyurids are small mammals that can conserve energy and water by using shelters that insulate against extreme conditions, prevent predation, and facilitate torpor. To quantify the diurnal sheltering requirements of a poorly known, endangered dasyurid, the sandhill dunnart, Sminthopsis psammophila, we radiotracked 40 individuals in the Western Australian Great Victoria Desert between 2015 and 2019. We assessed the effect of habitat class (broad habitat features), plot-level (the area surrounding each shelter), and shelter characteristics (e.g., daily temperature ranges), on shelter selection and sheltering habitat preferences. Two hundred and eleven diurnal shelters (mean of 5 ± 3 shelters per individual) were located on 363 shelter days (the number of days each shelter was used), within mature vegetation (mean seral age of 32 ± 12 years postfire). Burrows were used on 77% of shelter days and were typically concealed under mature spinifex, Triodia spp., with stable temperature ranges and northern aspects facing the sun. While many burrows were reused (n = 40 across 175 shelter days), spinifex hummock shelters typically were used for one shelter day and were not insulative against extreme temperatures. However, shallow scrapes within Lepidobolus deserti hummock shelters had thermal advantages and log shelters retained heat and were selected on cooler days. Sminthopsis psammophila requires long-unburned sheltering habitat with mature vegetation. Summer fires in the Great Victoria Desert can be extensive and destroy large areas of land, rendering them a key threat to the species. We conclude that the survey and conservation of S. psammophila requires attention to long-unburned, dense lower stratum swale, sand plain, and dune slope habitats, and the tendency of S. psammophila to burrow allows the species to survive within the extreme conditions of its desert environment.

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Marrie, T. J., D. Haldane, G. Bezanson, and R. Peppard. "Each water outlet is a unique ecological niche forLegionella pneumophila." Epidemiology and Infection 108, no. 2 (April 1992): 261–70. http://dx.doi.org/10.1017/s0950268800049736.

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SUMMARYWe determined the natural history of the colonization of our hospital's potable water by culturing water approximately biweekly from 20 sites throughout the hospital for 4 years. Overall, 545 (24.7%) of the 2200 samples grewLegionella pneumophila. During hyperchlorination, 11·7% of the samples were positive while 41·6% were positive in the absence of chlorination. There was no seasonal trend towards positivity, but there was marked inter-site variation in the semi-quantitative culture results. However, a single strain of legionella (as defined by plasmid profiling) tended to persist at a site. Such a site was a unique ecological niche in that different sites in the same wing were populated by distinct strains.The two wings of our hospital had a significantly different distribution of strains of legionella – plasmid profile type III predominated in the Victoria Wing while types II and VI predominated in Centennial Wing. Twenty-four of our 28 cases of nosocomial Legionnaires' disease occurred in the Centennial Wing. Three of the four cases in the Victoria Wing were caused by plasmid profile type III while 18 of the 24 isolates from patients who acquired their infection in the Centennial Wing were type II. We conclude that each water outlet serves as its own ecological niche ofL. pneumophila.

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Reuss, Martin. "Historians, Historical Analysis, and International Water Politics." Public Historian 26, no. 1 (2004): 65–80. http://dx.doi.org/10.1525/tph.2004.26.1.65.

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The resolution of international water disputes demands historical analysis. Too often, this analysis is not supplied by professional historians but by policymakers, engineers, and others who may lack the required knowledge and skills. The result inhibits rather than advances sound policy. Fortunately, historians are obtaining increased appreciation for what they bring to the conference table. The United Nations Educational, Scientific and Cultural Organization (UNESCO), which the United States recently rejoined, is attempting to further sound historical study; and the recently formed International Water History Association (IWHA) provides a forum to focus on the history of global water issues. These developments afford historians new and important means to make a difference in resolving some of the most pressing international resource issues.

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SHRUBSOLE, DAN. "THE GRAND RIVER CONSERVATION COMMISSION: HISTORY, ACTIVITIES, AND IMPLICATIONS FOR WATER MANAGEMENT." Canadian Geographer/Le Géographe canadien 36, no. 3 (September 1992): 221–36. http://dx.doi.org/10.1111/j.1541-0064.1992.tb01136.x.

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Maddaus, Lisa A., Michelle L. Maddaus, William O. Maddaus, and Chris A. Matyas. "Pursuing more efficient water use: The history and future of water conservation in the United States." Journal - American Water Works Association 106, no. 8 (August 2014): 150–63. http://dx.doi.org/10.5942/jawwa.2014.106.0115.

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Lilley, Keith D. "Review Article: The Victoria County History and the Landscape of Towns: A Review and Critique." Landscapes 13, no. 1 (June 2012): 70–74. http://dx.doi.org/10.1179/lan.2012.13.1.005.

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Singha, Bipasha, and Osama Eljamal. "Exploring Attitudes and Household Culture to Encourage Water Conservation Behavior." Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES) 7 (October 21, 2021): 149–54. http://dx.doi.org/10.5109/4738581.

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