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Journal articles on the topic "Ecological surveys Victoria"
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Norton, Briony A., Linda J. Thomson, and Michael A. Nash. "Ophyiulus in Victoria: results of millipede surveys from south-eastern Australia." Proceedings of the Royal Society of Victoria 127, no. 2 (2015): 69. http://dx.doi.org/10.1071/rs15019.
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The composition and ecology of the millipede fauna of Victoria remain poorly understood. We collected millipedes as part of a series of ecological arthropod surveys across south-eastern Australia, focusing mainly on Victoria. These samples almost exclusively contained millipedes from the introduced order Julida. We pursued species identification of the julids when it became apparent there were species other than the well-recorded Ommatoiulus moreleti (Lucas, 1860) (Portuguese millipede) in the samples. The majority of specimens were O. moreleti, but we also detected at least one species of Cylindroiulus Verhoeff, 1894, as well as an Ophyiulus Berlese, 1884, species, specimens of which have been identified as Ophyiulus cf. targionii. These are the first Ophyiulus records for Victoria to our knowledge. We present preliminary data on the abundance through the year of Ophyiulus. This is the first study to examine this species in Victoria and little is currently known about its likely impact on agriculture or on native species. Monitoring and research of the species in the future is therefore warranted.
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Brueggemeier, Jan. "Nature in the Dark - Public Space for More-than-Human Encounters." Animal Studies Journal 10, no. 2 (2021): 19–45. http://dx.doi.org/10.14453/asj.v10i2.2.
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Drawing on the continuing work of the Nature in the Dark (NITD) project, an art collaboration and publicity campaign between the Centre for Creative Arts (La Trobe University) and the Victorian National Parks Association (VNPA), this paper aims to explore some of the disciplinary crossovers between art, science and philosophy as encountered by this project and to think about their implications for an environmental ethics more generally. Showcasing animal life from Victoria, Australia, the NITD video series I and II invited international artists to create video works inspired by ecological habitat surveys from the Victorian National Parks land and water. Videos and photographs originally used to identify animals and population sizes are now creatively repurposed and presented to new audiences. NITD negotiate ‘the distribution of the sensible’ (Rancière), as they mark the domain of what is accessible to the public. This paper relates the discussion in the contemporary arts about the politics of aesthetics with the ethical conundrum of how we might care about something that is beyond our reach and we are not yet aware of, given our own perceptual blind spots. Drawing on a conversation between the philosopher Georgina Butterfield and myself as an artist and curator, this paper argues that we cannot justify setting arbitrary limits on our valuing, questioning or understanding of the non-human world, and as such it is a position both the philosopher and artist share. While it may be an ultimately unreachable goal, it is paradoxically an essential starting point for ecological ethics.
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Kimaro, T. A., and R. Fidelis. "Impacts of Lake Victoria Level Fluctuations to Livelihoods Missungwi District Case Study." Tanzania Journal of Engineering and Technology 30, no. 2 (December 31, 2007): 98–109. http://dx.doi.org/10.52339/tjet.v30i2.403.
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Lake Victoria experienced drastic levels changes in 2005 causing great inconveniences to lakeside communities. Thisstudy investigated effects of these changes on livelihoods through questionnaire surveys, focused group discussions,interviews and analysis of fish catches, diseases, crops, and lake levels data. Results indicate recession of levels hadvarious socio-economic impacts. The changes caused severe water shortage due to drying up of shallow wells and aremarkable increase in prevalence of schistosomiasis because of increased utilization of lake water. There was noevidence for impact of level changes on malaria and diarrhea. Decline of water levels caused decline in fish catches dueto retreat of water from breeding sites. However receding waters created a new land for cultivation which helped toboost Maize and sweet potatoes production. The results emphasize on ensuring stability of lake levels to avoid negativeimpacts on livelihoods and to maintain ecological integrity of the lake.
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Lindenmayer, DB, KL Viggers, RB Cunningham, and CF Donnelly. "Morphological Variation Among Populations of the Mountain Brushtail Possum, Trichosurus-Caninus Ogilby (Phalangeridae, Marsupialia)." Australian Journal of Zoology 43, no. 5 (1995): 449. http://dx.doi.org/10.1071/zo9950449.
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The results are described of a study of morphometric variation among populations of the mountain brushtail possum, Trichosurus caninus Ogilby. Trapping surveys were completed at seven sites from southern Victoria to central Queensland. The variables measured from each of the 102 animals captured included head length, skull width, total body length, tail length, pes length, length of the ear conch, body girth, belly girth and the pelage colour. Canonical variate analysis highlighted the existence of a marked separation between populations in Victoria and those in New South Wales and Queensland. The first canonical variate accounted for 89% of the variation between the populations and was dominated by the length of the ear conch, tail length and pes length. There also were differences between the populations for several other morphometric measures including the head and body length. We recorded considerable variation in the fur colour of T. caninus both within and between the populations surveyed. However, no consistent pattern in the geographic variation of fur coloration was evident. We do not know the ecological or evolutionary causes underlying the observed differences in morphological characteristics amongst the populations of T. caninus. Further work is planned to examine the genetic variability of the populations and to assess the taxonomic significance of our findings.
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Ferguson, Michael A. D. "Status and trends of Rangifer tarandus and Ovibos moschatus populations in Canada." Rangifer 12, no. 3 (October 1, 1992): 127. http://dx.doi.org/10.7557/2.12.3.1017.
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We identified 97 Rangifer tarandus and 17 Ovibos moschatus populations in Canada. In July 1991, the Canadian populations totalled 1.9 to 2.6 million caribou, 13 600 reindeer and 108 600 muskoxen. Seven barren-ground caribou populations contributed about 75% to Canada's total number of caribou. Most population trends of these barren-ground caribou had shiftet from increasing in the early 1980s to stable or decreasing in the late 1980s. The George River herd of Quebec and Labrador has been decreasing since 1987, but remains the largest Canadian caribou population. The ecological factors driving barren-ground caribou population dynamics are not well understood. Arctic islands caribou are about 17% of all Canadian caribou. Over 60% of Arctic islands caribou occurred on Baffin Island. Most Arctic islands populations were decreasing with the exceptions of Southampton, Bathurst, Victoria and Baffin islands. Movements within and between islands are not well understood, and probably limit the usefulness of small surveys for indicating long-term trends of Arctic islands caribou populations. Woodland caribou form about 7% of all Canadian caribou, with about 40% of these occurring on the island of Newfoundland. Most Canadian woodland caribou have not been well studied or censused. In many areas, they were faced with an increasing rate of habitat loss. Exceptions included: some eastern Yukon populations and most Newfoundland populations which were increasing. Over 70% of the Canadian muskox population occurred on Banks and Victoria islands. Almost all muskox populations were increasing, especially those on Banks, Victoria, Melville and Bathurst islands. Muskoxen on the mainland Northwest Territories are re-colonizing southern portions of their historical distribution.
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Rizzo, Carmen, Antonella Conte, Maurizio Azzaro, Maria Papale, Alessandro C. Rappazzo, Dario Battistel, Marco Roman, Angelina Lo Giudice, and Mauro Guglielmin. "Cultivable Bacterial Communities in Brines from Perennially Ice-Covered and Pristine Antarctic Lakes: Ecological and Biotechnological Implications." Microorganisms 8, no. 6 (May 29, 2020): 819. http://dx.doi.org/10.3390/microorganisms8060819.
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The diversity and biotechnological potentialities of bacterial isolates from brines of three Antarctic lakes of the Northern Victoria Land (namely Boulder Clay and Tarn Flat areas) were first explored. Cultivable bacterial communities were analysed mainly in terms of bacterial response to contaminants (i.e., antibiotics and heavy metals) and oxidation of contaminants (i.e., aliphatic and aromatic hydrocarbons and polychlorobiphenyls). Moreover, the biosynthesis of biomolecules (antibiotics, extracellular polymeric substances and enzymes) with applications for human health and environmental protection was assayed. A total of 74 and 141 isolates were retrieved from Boulder Clay and Tarn Flat brines, respectively. Based on 16S rRNA gene sequence similarities, bacterial isolates represented three phyla, namely Proteobacteria (i.e., Gamma- and Alphaproteobacteria), Bacteroidetes and Actinobacteria, with differences encountered among brines. At genus level, Rhodobacter, Pseudomonas, Psychrobacter and Leifsonia members were dominant. Results obtained from this study on the physiological and enzymatic features of cold-adapted isolates from Antarctic lake brines provide interesting prospects for possible applications in the biotechnological field through future targeted surveys. Finally, findings on contaminant occurrence and bacterial response suggest that bacteria might be used as bioindicators for tracking human footprints in these remote polar areas.
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Stephens, Lena D., Sarah A. McNaughton, David Crawford, and Kylie Ball. "Socio-economic differences in predictors of frequent dairy food consumption among Australian adolescents: a longitudinal study." Public Health Nutrition 18, no. 18 (February 23, 2015): 3326–36. http://dx.doi.org/10.1017/s1368980015000324.
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AbstractObjectiveSufficient dairy food consumption during adolescence is necessary for preventing disease. While socio-economically disadvantaged adolescents tend to consume few dairy foods, some eat quantities more in line with dietary recommendations despite socio-economic challenges. Socio-economic variations in factors supportive of adolescents’ frequent dairy consumption remain unexplored. The present study aimed to identify cross-sectional and longitudinal associations between intrapersonal, social and environmental factors and adolescents’ frequent dairy consumption at baseline and two years later across socio-economic strata, and to examine whether socio-economic position moderated observed effects.DesignOnline surveys completed at baseline (2004–2005) and follow-up (2006–2007) included a thirty-eight-item FFQ and questions based on social ecological models examining intrapersonal, social and environmental dietary influences.SettingThirty-seven secondary schools in Victoria, Australia.SubjectsAustralian adolescents (n 1201) aged 12–15 years, drawn from a sub-sample of 3264 adolescents (response rate=33 %).ResultsWhile frequent breakfast consumption was cross-sectionally associated with frequent dairy consumption among all adolescents, additional associated factors differed by socio-economic position. Baseline dairy consumption longitudinally predicted consumption at follow-up. No further factors predicted frequent consumption among disadvantaged adolescents, while four additional factors were predictive among advantaged adolescents. Socio-economic position moderated two predictors; infrequently eating dinner alone and never purchasing from school vending machines predicted frequent consumption among advantaged adolescents.ConclusionsNutrition promotion initiatives aimed at improving adolescents’ dairy consumption should employ multifactorial approaches informed by social ecological models and address socio-economic differences in influences on eating behaviours; e.g. selected intrapersonal factors among all adolescents and social factors (e.g. mealtime rules) among advantaged adolescents.
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Walsh, Aidan T., Neville Barrett, and Nicole Hill. "Efficacy of baited remote underwater video systems and bait type in the cool-temperature zone for monitoring ‘no-take’ marine reserves." Marine and Freshwater Research 68, no. 3 (2017): 568. http://dx.doi.org/10.1071/mf15165.
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Cool-temperate reef fish assemblages are often poorly described below 20m because of depth limitations of conventional diver-based visual census. The recent development of baited remote underwater video systems (BRUVs) provide an alternative quantitative sampling method. Despite being used in warmer temperate and tropical waters and cool-temperate waters in Victoria, initial trials of vertical BRUVs in Tasmania, Australia, provided poor results. Our study explored possible reasons for this, including using horizontal BRUVs and various baits across a depth gradient. We examined the fish fauna in, and adjacent to, a small, but long-established, no-take marine reserve to assess the potential for BRUVs to enhance monitoring programs in exposed coastal environments. Significant differences in the fish assemblage were described relating to location, depth and bait type, with pilchards being an effective bait type. Fish abundance and species richness increased with depth. The research validated BRUVs for monitoring deep-reef systems in Tasmania, reinforced the importance of depth in structuring fish assemblages and identified the range of observable species in this region that may not be fully captured with diver-based surveys alone. Power analyses were conducted using the data generated here to inform the amount of replication needed to detect biologically meaningful differences in targeted fish assemblages in subsequent studies examining the response of no-take marine reserves to protection. This facilitates future assessments of the effectiveness of Tasmanian no-take reserves and allows for more broad-scale studies that can address a range of ecological and conservation questions.
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May, Tom W., and Sapphire J. M. Mcmullan-Fisher. "Don’t be afraid of the f-word: prospects for integrating fungi into biodiversity monitoring." Proceedings of the Royal Society of Victoria 124, no. 1 (2012): 79. http://dx.doi.org/10.1071/rs12079.
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Fungi are diverse and functionally significant components of ecosystems yet are omitted from current ecological monitoring in Victoria, especially in relation to fire. The taxonomic and morphological diversity of fungi complicates identification but sampling by molecular profiling is now a practical alternative to specialised and time-consuming methods of culturing and fruit-body survey. Suggestions are provided to guide the implementation of ecological monitoring of fungi.
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Pentinsaari, Mikko, Gergin A. Blagoev, Ian D. Hogg, Valerie Levesque-Beaudin, Kate Perez, Crystal N. Sobel, Bryan Vandenbrink, and Alex Borisenko. "A DNA Barcoding Survey of an Arctic Arthropod Community: Implications for Future Monitoring." Insects 11, no. 1 (January 9, 2020): 46. http://dx.doi.org/10.3390/insects11010046.
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Accurate and cost-effective methods for tracking changes in arthropod communities are needed to develop integrative environmental monitoring programs in the Arctic. To date, even baseline data on their species composition at established ecological monitoring sites are severely lacking. We present the results of a pilot assessment of non-marine arthropod diversity in a middle arctic tundra area near Ikaluktutiak (Cambridge Bay), Victoria Island, Nunavut, undertaken in 2018 using DNA barcodes. A total of 1264 Barcode Index Number (BIN) clusters, used as a proxy for species, were recorded. The efficacy of widely used sampling methods was assessed. Yellow pan traps captured 62% of the entire BIN diversity at the study sites. When complemented with soil and leaf litter sifting, the coverage rose up to 74.6%. Combining community-based data collection with high-throughput DNA barcoding has the potential to overcome many of the logistic, financial, and taxonomic obstacles for large-scale monitoring of the Arctic arthropod fauna.
Books on the topic "Ecological surveys Victoria"
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Brunton, Daniel F. A Reconnaissance life science inventory of the Emily Creek Area of Natural and Scientific Interest, Victoria County, Ontario. Aurora: Ontario Ministry of Natural Resources, Parks and Recreational Areas Section, 1990.
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Hensley, Nathan K., and Philip Steer, eds. Ecological Form. Fordham University Press, 2018. http://dx.doi.org/10.5422/fordham/9780823282128.001.0001.
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Victorian England was both the world’s first industrial society and its most powerful global empire. Ecological Form coordinates those facts to show how one version of the Anthropocene first emerged into visibility in the nineteenth century. Many of that era’s most sophisticated observers recognized that the systemic interconnections and global scale of both empire and ecology posed challenges best examined through aesthetic form. Using “ecological formalism” to open new dimensions to our understanding of the Age of Coal, contributors reconsider Victorian literary structures in light of environmental catastrophe; coordinate “natural” questions with social ones; and underscore the category of form—as built structure, internal organizing logic, and generic code—as a means for generating environmental and therefore political knowledge. Together these essays show how Victorian thinkers deployed an array of literary forms, from the elegy and the industrial novel to the utopian romance and the scientific treatise, to think interconnection at world scale. They also renovate our understanding of major writers like Thomas Hardy, George Eliot, John Ruskin, and Joseph Conrad, even while demonstrating the centrality of less celebrated figures, including Dinabandhu Mitra, Samuel Butler, and Joseph Dalton Hooker, to contemporary debates about the humanities and climate change. As the essays survey the circuits of dispossession linking Britain to the Atlantic World, Bengal, New Zealand, and elsewhere—and connecting the Victorian era to our own—they advance the most pressing argument of Ecological Form, which is that past thought can be a resource for reimagining the present.
Reports on the topic "Ecological surveys Victoria"
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Donati, Kelly, and Nick Rose. Growing Edible Cities and Towns: A Survey of the Victorian Urban Agriculture Sector. Sustain: The Australian Food Network, October 2022. http://dx.doi.org/10.57128/miud6079.
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This report presents findings from a survey of urban agriculture practitioners in greater Melbourne (including green wedge areas), Bendigo, Ballarat and Geelong. The findings provide baseline data regarding the composition, activities, market channels, challenges, needs and aspirations of the urban agriculture sector, as well as opportunities for its support and growth. The report also proposes a roadmap for addressing critical challenges that face the sector and for building on the strength of its social and environmental commitments, informed by the survey findings and relevant academic literature on urban agriculture. This report’s findings and recommendations are of relevance to policymakers at all levels of government, especially as food security, climate change, human and ecological health and urban sustainability emerge as key interconnected priorities in this challenging decade.