21 results on '"Sherren K"'
Search Results
2. Societal extinction of species
- Author
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Jarić, I, Roll, U, Bonaiuto, M, Brook, BW, Courchamp, F, Firth, JA, Gaston, KJ, Heger, T, Jeschke, JM, Ladle, RJ, Meinard, Y, Roberts, DL, Sherren, K, Soga, M, Soriano-Redondo, A, Veríssimo, D, Verissimo, D, and Correia, RA
- Subjects
memory ,Conservation of Natural Resources ,education and marketing ,Policy ,collective attention ,experience ,conservation ,Anthropogenic Effects ,Biodiversity ,Extinction, Biological ,Ecology, Evolution, Behavior and Systematics - Abstract
The ongoing global biodiversity crisis not only involves biological extinctions, but also the loss of experience and the gradual fading of cultural knowledge and collective memory of species. We refer to this phenomenon as 'societal extinction of species' and apply it to both extinct and extant taxa. We describe the underlying concepts as well as the mechanisms and factors that affect this process, discuss its main implications, and identify mitigation measures. Societal extinction is cognitively intractable, but it is tied to biological extinction and thus has important consequences for conservation policy and management. It affects societal perceptions of the severity of anthropogenic impacts and of true extinction rates, erodes societal support for conservation efforts, and causes the loss of cultural heritage.
- Published
- 2022
3. Higher environmental education: core disciplines and the transition to sustainability
- Author
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Sherren, K.
- Subjects
Sustainable development -- Study and teaching ,Environmental education -- Study and teaching ,Environmental education -- Curricula ,Environmental issues ,Environmental services industry ,Law - Abstract
Environmental practitioners hiring staff or seeking study opportunities may be curious about how meaningfully Australian environmental and sustainability programs are named. Here, an internet-based audit of the core curricula of relevant Australian offerings, an expert questionnaire, and a novel application of quantitative clustering contribute some understanding. Various types of environmental education are suggested by clustering core curricula, but those types are not consistently indicated by course names, especially in undergraduate-level studies. Although very few programs use the term 'sustainable' or 'sustainability' in their name (especially at the undergraduate level), many do explicitly aim to educate for sustainability according to web marketing. Such programs are closer to approximating an expert-derived 'ideal core curriculum' than the rest, although in aggregate they still lack relevant policy and philosophy content. Keywords: k-means clustering, core curriculum, education for sustainable development, environmental studies, university degree programs
- Published
- 2008
4. Facing the challenges of using place-based social-ecological research to support ecosystem service governance at multiple scales
- Author
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Bennett, E. M., primary, Morrison, P., additional, Holzer, J. M., additional, Winkler, K. J., additional, Fraser, E. D. G., additional, Green, S. J., additional, Robinson, B. E., additional, Sherren, K., additional, Botzas-Coluni, J., additional, and Palen, W., additional
- Published
- 2021
- Full Text
- View/download PDF
5. Expanding the role of social science in conservation through an engagement with philosophy, methodology, and methods
- Author
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Moon, K, Blackman, DA, Adams, VM, Colvin, RM, Davila, F, Evans, MC, Januchowski-Hartley, Bennett, NJ, Dickinson, H, Sandbrook, C, Sherren, K, St. John, FAV, Van Kerkhoff, L, Wyborn, C, Moon, K [0000-0003-2538-9262], Januchowski-Hartley, SR [0000-0002-1661-917X], Bennett, NJ [0000-0003-4852-3401], Sandbrook, C [0000-0002-9938-4934], Wyborn, C [0000-0002-4314-347X], and Apollo - University of Cambridge Repository
- Subjects
qualitative data ,interviews ,surveys ,policymaking ,focus groups ,decision-making ,guideline ,conservation social science - Abstract
© 2019 The Authors. Methods in Ecology and Evolution published by John Wiley & Sons Ltd on behalf of British Ecological Society The Special Feature led by Sutherland, Dicks, Everard, and Geneletti (Methods Ecology and Evolution, 9, 7–9, 2018) sought to highlight the importance of “qualitative methods” for conservation. The intention is welcome, and the collection makes many important contributions. Yet, the articles presented a limited perspective on the field, with a focus on objectivist and instrumental methods, omitting discussion of some broader philosophical and methodological considerations crucial to social science research. Consequently, the Special Feature risks narrowing the scope of social science research and, potentially, reducing its quality and usefulness. In this article, we seek to build on the strengths of the articles of the Special Feature by drawing in a discussion on social science research philosophy, methodology, and methods. We start with a brief discussion on the value of thinking about data as being qualitative (i.e., text, image, or numeric) or quantitative (i.e., numeric), not methods or research. Thinking about methods as qualitative can obscure many important aspects of research design by implying that “qualitative methods” somehow embody a particular set of assumptions or principles. Researchers can bring similar, or very different, sets of assumptions to their research design, irrespective of whether they collect qualitative or quantitative data. We clarify broad concepts, including philosophy, methodology, and methods, explaining their role in social science research design. Doing so provides us with an opportunity to examine some of the terms used across the articles of the Special Feature (e.g., bias), revealing that they are used in ways that could be interpreted as being inconsistent with their use in a number of applications of social science. We provide worked examples of how social science research can be designed to collect qualitative data that not only understands decision-making processes, but also the unique social–ecological contexts in which it takes place. These examples demonstrate the importance of coherence between philosophy, methodology, and methods in research design, and the importance of reflexivity throughout the research process. We conclude with encouragement for conservation social scientists to explore a wider range of qualitative research approaches, providing guidance for the selection and application of social science methods for ecology and conservation.
- Published
- 2019
6. Emergent landscapes: exploring social-ecological interdisciplinarity
- Author
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Rawluk, A, Beilin, R, Bender, H, Bartel, S, Bohnet, I, Brockett, B, Browne, A, Connelly, A, Goldstein, B, Grover, S, Judith, K, Lebel, L, Lebel, P, Miller, G, Nelson, R, Primdahl, J, Kristensen, L, Paschen, J, Reichelt, N, Sherren, K, Spicer, A, Swaffield, S, Moore, K, von Heland, J, Carter, J, Ellis, M, Hincks, S, Handley, J, Frankel-Goldwater, L, Osborne-Gowey, J, Risien, J, Schwizer, S, Rawluk, A, Beilin, R, Bender, H, Bartel, S, Bohnet, I, Brockett, B, Browne, A, Connelly, A, Goldstein, B, Grover, S, Judith, K, Lebel, L, Lebel, P, Miller, G, Nelson, R, Primdahl, J, Kristensen, L, Paschen, J, Reichelt, N, Sherren, K, Spicer, A, Swaffield, S, Moore, K, von Heland, J, Carter, J, Ellis, M, Hincks, S, Handley, J, Frankel-Goldwater, L, Osborne-Gowey, J, Risien, J, and Schwizer, S
- Published
- 2018
7. Mind the Sustainability Gap
- Author
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Fischer, J., Manning, A., Steffen, W., Rose, D., Daniell, K., Felton, A., Garnett, Stephen, Gilna, B., Heinsohn, R., Lindenmayer, D., Macdonald, B., Mills, F., Newell, B., Reid, J., Robin, L., Sherren, K., Wade, A., Fischer, J., Manning, A., Steffen, W., Rose, D., Daniell, K., Felton, A., Garnett, Stephen, Gilna, B., Heinsohn, R., Lindenmayer, D., Macdonald, B., Mills, F., Newell, B., Reid, J., Robin, L., Sherren, K., and Wade, A.
- Abstract
Despite increasing efforts to reach sustainability, key global biophysical indicators such as climate change and biodiversity loss continue to deteriorate rather than improve. Ongoing failure to move towards sustainability calls into question the focus of current research and policy. We recommend two strategies for progress. First, sustainability must be conceptualized as a hierarchy of considerations, with the biophysical limits of the Earth setting the ultimate boundaries within which social and economic goals must be achieved. Second, transdisciplinary research programs must confront key normative questions facing modern consumer societies. The humanities should have a key role in such programs. Assisted by these strategies, ambitious targets that realistically reflect the biophysical limits of the life-support system of the Earth must be set and relentlessly worked towards.
- Published
- 2007
8. Reversing scattered tree decline on farms: implications of landholder perceptions and practice in the Lachlan catchment, New South Wales
- Author
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Schirmer, J., primary, Clayton, H., additional, and Sherren, K., additional
- Published
- 2012
- Full Text
- View/download PDF
9. Collaborative research on sustainability: Myths and conundrums of interdisciplinary departments
- Author
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Sherren, K., Alden S Klovdahl, Robin, L., Butler, L., and Dovers, S.
- Subjects
lcsh:Academies and learned societies ,social networks ,cosupervision ,lcsh:AS1-945 ,sustainability science ,coauthorship ,collaboration ,research training - Abstract
Establishing interdisciplinary academic departments has been a common response to the challenge of addressing complex problems. However, the assumptions that guide the formation of such departments are rarely questioned. Additionally, the designers and managers of interdisciplinary academic departments in any field of endeavour struggle to set an organisational climate appropriate to the diversity of their members. This article presents a preliminary analysis of collaborative dynamics within two interdisciplinary university departments in Australia focused on sustainability. Social network diagrams and metrics of coauthorship and cosupervision are analysed qualitatively. A “vicarious interdisciplinarity” was identified among key academics working narrowly in order to earn the resources that allow them to support others working interdisciplinarily. Those supported in this way appear to benefit from the esteem and nonredundant collaborative connections their mentors provide via this strategy, but they experience uncertainty about their own career opportunities in similar settings. This article thus unearths a conundrum of succession for interdisciplinary academic environments, and suggests that simple colocation of diverse academic stars is an inadequate strategy to achieve effective intradepartmental collaboration.
10. Towards taking farmers seriously: Contributions of farmer knowledge to food systems adaptation to climate change
- Author
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Soubry, B, Sherren, K, and Thornton, T
- Subjects
climate change ,food systems ,farmer knowledge ,climate adaptation - Abstract
The effects of climate change on land-based food systems are, and will continue to be, devastating. To preserve lives and livelihoods, policy in the food-climate nexus must help to build resilience and adapt successfully to these changes. Yet farmers, whose tacit knowledge makes them experts in food systems adaptation and whose livelihoods are directly affected by shifts in policy, are conspicuously absent from planning discussions. This is the case in three Eastern Canadian Maritime provinces—Nova Scotia, New Brunswick, and Prince Edward Island—where provincial adaptation planning does not consider climate change a threat to food systems. This thesis explores the potential and current contributions of farmers’ knowledge to adaptation of regional and global food systems. From an empirical perspective, I explain how farmer knowledge has been sidelined in research and policy discussions and demonstrate how farmer-led collective action successfully builds adaptive capacity to climate change. I also contribute to ongoing theoretical discussions by deconstructing the meaning of “resilience” in the context of the implementation of the term in policy in the food-climate nexus. Its original contributions to research come in three published papers which primarily focus on small-scale vegetable producers in the Maritimes region as a case study of how farmers adapt markets and farms without policy support. Fieldwork insights draw from two sets of semi-structured interviews, conducted and analyzed through grounded theory methodology. First, I present a systematic literature review of farmer perceptions of climate change in the academic literature. I argue that while the literature certainly recognizes farmers' participation in land management as an essential component of successful adaptation, their knowledge is largely perceived as provisional and open for verification by scientists, rather than trustworthy. Then, I consider collective action in the food system and its implications for endogenous, grass-roots climate adaptation strategies. Building on interviews conducted in the Maritimes over 2017-2018, the paper suggests that collective action substantively contributes to adaptation and should be supported by adaptation policy, rather than overturned by top-down policies which dictate changes and adaptations. Finally, I examine disjointed definitions of the term “resilience” between farmer participants and Canadian climate policy, pointing to the problematic nature of boundary objects in climate and food policy. Building on the notion that resilience is not a politically neutral term, the paper uses the example of studies from Canadian government committees to point out how a loose definition of resilience can entrench the status quo rather than enable necessary adaptations. The thesis argues that farmer knowledge on successful adaptation is nowhere near as present in adaptation planning processes as the literature suggests it is, or ought to be. It shows that farmers can and do capably generate successful adaptations for entire food systems through collective action with other food system actors. The thesis also warns that while these adaptations require external support, the institutional mechanisms currently in place tend to reinforce the status quo rather than communicate felt impacts or enable transformative change in food systems.
- Published
- 2021
11. Social media and social impact assessment: Evolving methods in a shifting context.
- Author
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Sherren K, Chen Y, Mohammadi M, Zhao Q, Gone KP, Rahman HT, and Smit M
- Abstract
Among many by-products of Web 2.0 come the wide range of potential image and text datasets within social media and content sharing platforms that speak of how people live, what they do, and what they care about. These datasets are imperfect and biased in many ways, but those flaws make them complementary to data derived from conventional social science methods and thus potentially useful for triangulation in complex decision-making contexts. Yet the online environment is highly mutable, and so the datasets are less reliable than censuses or other standard data types leveraged in social impact assessment. Over the past decade, we have innovated numerous methods for deploying Instagram datasets in investigating management or development alternatives. This article synthesizes work from three Canadian decision contexts - hydroelectric dam construction or removal; dyke realignment or wetland restoration; and integrating renewable energy into vineyard landscapes - to illustrate some of the methods we have applied to social impact assessment questions using Instagram that may be transferrable to other social media platforms and contexts: thematic (manual coding, machine vision, natural language processing/sentiment analysis, statistical analysis), spatial (hotspot mapping, cultural ecosystem modeling), and visual (word clouds, saliency mapping, collage). We conclude with a set of cautions and next steps for the domain., (© The Author(s) 2023.)
- Published
- 2024
- Full Text
- View/download PDF
12. From theory to practice: insights and hurdles in collecting social media data for social science research.
- Author
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Chen Y, Sherren K, Lee KY, McCay-Peet L, Xue S, and Smit M
- Abstract
Social media has profoundly changed our modes of self-expression, communication, and participation in public discourse, generating volumes of conversations and content that cover every aspect of our social lives. Social media platforms have thus become increasingly important as data sources to identify social trends and phenomena. In recent years, academics have steadily lost ground on access to social media data as technology companies have set more restrictions on Application Programming Interfaces (APIs) or entirely closed public APIs. This circumstance halts the work of many social scientists who have used such data to study issues of public good. We considered the viability of eight approaches for image-based social media data collection: data philanthropy organizations, data repositories, data donation, third-party data companies, homegrown tools, and various web scraping tools and scripts. This paper discusses the advantages and challenges of these approaches from literature and from the authors' experience. We conclude the paper by discussing mechanisms for improving social media data collection that will enable this future frontier of social science research., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2024 Chen, Sherren, Lee, McCay-Peet, Xue and Smit.)
- Published
- 2024
- Full Text
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13. The Role of Social License in Non-Industrial Marine and Coastal Planning: a Scoping Review.
- Author
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Margeson K, Manuel P, Stewart I, Murphy E, Smit M, and Sherren K
- Subjects
- Humans, Industry, Ecosystem, Environment
- Abstract
Marine and coastal environments are diverse and dynamic, supporting competing human interests and demands. As society seeks to balance contested uses of space, more holistic planning processes have emerged, which consider social, economic, and ecological factors. One approach that considers social factors, and more specifically social acceptance, is "social license to operate" (SLO). Originating in the terrestrial mining industry, SLO has been adopted by various marine industries. Except for some emerging work in the conservation field, SLO is typically applied to industrial marine and coastal contexts. To understand SLO's uses in other marine and coastal planning contexts, namely conservation, adaptation, and restoration, we conducted a scoping review using the term SLO and similar concepts, including public or social acceptance, support, and buy-in. Results indicate the concept of SLO is still emerging in non-industrial marine and coastal planning, with an emphasis on gaining public acceptance rather than maintaining it. The concept of SLO was applied broadly, including as a measurement for public support and a product of effective engagement. Most publications focused on barriers and drivers of SLO. Influential factors are identified and organized by theme, then discussed based on their relationships within a social-ecological system framework. Considering the common factors and their associated systems helps to link elements necessary to obtain SLO, highlighting their interconnectedness with each other, society, and the natural environment. The findings of this review illustrate SLO's utility for academics and practitioners alike, through its application in methods, tools, values, and concepts that characterize public inclusion for marine and coastal planning., (© 2023. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)
- Published
- 2024
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14. Climax thinking on the coast: a focus group priming experiment with coastal property owners about climate adaptation.
- Author
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Sherren K, Sutton K, and Chappell E
- Subjects
- Focus Groups, Humans, Wetlands, Climate Change, Ecosystem
- Abstract
Coastal communities face increasingly difficult decisions about responses to climate change. Armoring and defending the coast are being revealed as ineffective in terms of outcomes and cost, particularly in rural areas. Nature-based options include approaches that make space for coastal dynamism (e.g., through managed retreat) or leverage ecosystem services such as erosion control (e.g., by restoring coastal wetlands). Resistance can be strong to these alternatives to hard infrastructure. Nova Scotia, off Canada's Atlantic coast, is a vulnerable coastal jurisdiction facing such decisions. The emerging climax thinking framework was used to design 14 experimental online focus groups. These focus groups explored how three priming treatments influenced discussions about adaptation options and urgency and quantitative pre/post-tests, compared with information-only control treatments. A future-focused priming strategy seemed most effective since it fostered discussions about duties to future generations. The altruism-focused priming strategy involved reflections of wartime mobilization and more recent collective action. It also worked but was more difficult to implement and potentially higher risk. Past-focused priming was counterproductive. Further research should test the future-focused and altruism-focused strategies among larger groups and in different jurisdictions, reducing some of the biases in our sample., (© 2022. The Author(s).)
- Published
- 2022
- Full Text
- View/download PDF
15. Societal extinction of species.
- Author
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Jarić I, Roll U, Bonaiuto M, Brook BW, Courchamp F, Firth JA, Gaston KJ, Heger T, Jeschke JM, Ladle RJ, Meinard Y, Roberts DL, Sherren K, Soga M, Soriano-Redondo A, Veríssimo D, and Correia RA
- Subjects
- Anthropogenic Effects, Biodiversity, Policy, Conservation of Natural Resources, Extinction, Biological
- Abstract
The ongoing global biodiversity crisis not only involves biological extinctions, but also the loss of experience and the gradual fading of cultural knowledge and collective memory of species. We refer to this phenomenon as 'societal extinction of species' and apply it to both extinct and extant taxa. We describe the underlying concepts as well as the mechanisms and factors that affect this process, discuss its main implications, and identify mitigation measures. Societal extinction is cognitively intractable, but it is tied to biological extinction and thus has important consequences for conservation policy and management. It affects societal perceptions of the severity of anthropogenic impacts and of true extinction rates, erodes societal support for conservation efforts, and causes the loss of cultural heritage., Competing Interests: Declaration of interests No interests are declared., (Copyright © 2021 Elsevier Ltd. All rights reserved.)
- Published
- 2022
- Full Text
- View/download PDF
16. Using news coverage and community-based impact assessments to understand and track social effects using the perspectives of affected people and decisionmakers.
- Author
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Pimentel da Silva GD, Sherren K, and Parkins JR
- Subjects
- Canada, Humans, Social Change
- Abstract
This paper applies an innovative approach to monitoring social effects occurring before and during construction of two hydroelectric dams in Canada. The two studied dams, Site C and Keeyask, are under construction in Canada and underwent community-based impact assessment (CBIA). News coverage and the CBIA documents were analyzed to understand and compare how those two groups perceive social effects induced by the two projects. CBIAs contain concerns expressed by affected people, whereas news coverage can include quotes from both affected people and decisionmakers involved in the assessment process. By contrasting these datasets, we found that the documents are complementary: while CBIAs are comprehensive in assessing community concerns, news outlets can reveal how those concerns evolved throughout different phases of the projects' implementation. This approach fills a gap in SIA around monitoring of key social effects around local conflicts and disputes, psychosocial effects, socioeconomic effects, and cumulative effects on a daily life. Furthermore, by contrasting the views identified within the impact assessments and the media, the study demonstrates how specific concerns diverged: affected people focus on local social effects while decisionmakers' interests lie in a broader political perspective grounded in local sacrifices 'for the good of the whole province'. Our analysis emphasizes the role of political power over decision making that can inhibit CBIA and social impact assessment practice from contributing to socially sustainable projects., (Copyright © 2021 Elsevier Ltd. All rights reserved.)
- Published
- 2021
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17. Expanding conservation culturomics and iEcology from terrestrial to aquatic realms.
- Author
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Jarić I, Roll U, Arlinghaus R, Belmaker J, Chen Y, China V, Douda K, Essl F, Jähnig SC, Jeschke JM, Kalinkat G, Kalous L, Ladle R, Lennox RJ, Rosa R, Sbragaglia V, Sherren K, Šmejkal M, Soriano-Redondo A, Souza AT, Wolter C, and Correia RA
- Subjects
- Animals, Animals, Wild physiology, Bias, Endangered Species, Fisheries, Conservation of Natural Resources, Ecosystem
- Abstract
The ongoing digital revolution in the age of big data is opening new research opportunities. Culturomics and iEcology, two emerging research areas based on the analysis of online data resources, can provide novel scientific insights and inform conservation and management efforts. To date, culturomics and iEcology have been applied primarily in the terrestrial realm. Here, we advocate for expanding such applications to the aquatic realm by providing a brief overview of these new approaches and outlining key areas in which culturomics and iEcology are likely to have the highest impact, including the management of protected areas; fisheries; flagship species identification; detection and distribution of threatened, rare, and alien species; assessment of ecosystem status and anthropogenic impacts; and social impact assessment. When deployed in the right context with awareness of potential biases, culturomics and iEcology are ripe for rapid development as low-cost research approaches based on data available from digital sources, with increasingly diverse applications for aquatic ecosystems., Competing Interests: The authors have declared that no competing interests exist.
- Published
- 2020
- Full Text
- View/download PDF
18. Pilot study investigating ambient air toxics emissions near a Canadian kraft pulp and paper facility in Pictou County, Nova Scotia.
- Author
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Hoffman E, Guernsey JR, Walker TR, Kim JS, Sherren K, and Andreou P
- Subjects
- Nova Scotia, Pilot Projects, Air Pollutants analysis, Air Pollution analysis, Environmental Monitoring, Volatile Organic Compounds analysis, Wind
- Abstract
Air toxics are airborne pollutants known or suspected to cause cancer or other serious health effects, including certain volatile organic compounds (VOCs), prioritized by the US Environmental Protection Agency (EPA). While several EPA-designated air toxics are monitored at a subset of Canadian National Air Pollution Surveillance (NAPS) sites, Canada has no specific "air toxics" control priorities. Although pulp and paper (P&P) mills are major industrial emitters of air pollutants, few studies quantified the spectrum of air quality exposures. Moreover, most NAPS monitoring sites are in urban centers; in contrast, rural NAPS sites are sparse with few exposure risk records. The objective of this pilot study was to investigate prioritized air toxic ambient VOC concentrations using NAPS hourly emissions data from a rural Pictou, Nova Scotia Kraft P&P town to document concentration levels, and to determine whether these concentrations correlated with wind direction at the NAPS site (located southwest of the mill). Publicly accessible Environment and Climate Change Canada data (VOC concentrations [Granton NAPS ID: 31201] and local meteorological conditions [Caribou Point]) were examined using temporal (2006-2013) and spatial analytic methods. Results revealed several VOCs (1,3-butadiene, benzene, and carbon tetrachloride) routinely exceeded EPA air toxics-associated cancer risk thresholds. 1,3-Butadiene and tetrachloroethylene were significantly higher (p < 0.05) when prevailing wind direction blew from the northeast and the mill towards the NAPS site. Conversely, when prevailing winds originated from the southwest towards the mill, higher median VOC air toxics concentrations at the NAPS site, except carbon tetrachloride, were not observed. Despite study limitations, this is one of few investigations documenting elevated concentrations of certain VOCs air toxics to be associated with P&P emissions in a community. Findings support the need for more research on the extent to which air toxics emissions exist in P&P towns and contribute to poor health in nearby communities.
- Published
- 2017
- Full Text
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19. Modeling fire susceptibility to delineate wildland-urban interface for municipal-scale fire risk management.
- Author
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Whitman E, Rapaport E, and Sherren K
- Subjects
- Nova Scotia, Risk Management statistics & numerical data, Cities, Fires statistics & numerical data, Models, Theoretical, Risk Management methods, Wilderness
- Abstract
The wildland-urban interface (WUI) is the region where development meets and intermingles with wildlands. The WUI has an elevated fire risk due to the proximity of development and residents to wildlands with natural wildfire regimes. Existing methods of delineating WUI are typically applied over a large region, use proxies for risk, and do not consider site-specific fire hazard drivers. While these models are appropriate for federal and provincial risk management, municipal managers require models intended for smaller regions. The model developed here uses the Burn-P3 fire behavior model to model WUI from local fire susceptibility (FS) in two study communities. Forest fuel code (FFC) maps for the study communities were modified using remote sensing data to produce detailed forest edges, including ladder fuels, update data currency, and add buildings and roads. The modified FFC maps used in Burn-P3 produced bimodal FS distributions for each community. The WUI in these communities was delineated as areas within community bounds where FS was greater than or equal to -1 SD from the mean FS value ([Formula: see text]), which fell in the trough of the bimodal distribution. The WUI so delineated conformed to the definition of WUI. This model extends WUI modeling for broader risk management initiatives for municipal management of risk, as it (a) considers site-specific drivers of fire behavior; (b) models risk, represented by WUI, specific to a community; and, (c) does not use proxies for risk.
- Published
- 2013
- Full Text
- View/download PDF
20. Reversing a tree regeneration crisis in an endangered ecoregion.
- Author
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Fischer J, Stott J, Zerger A, Warren G, Sherren K, and Forrester RI
- Subjects
- Animals, Australia, Biodiversity, Extinction, Biological, Humans, Conservation of Natural Resources methods, Ecosystem, Regeneration, Trees physiology
- Abstract
Global food demand is growing rapidly. Livestock grazing can provide a valuable source of protein, but conventional grazing is often unsustainable. We studied an 800,000-ha section of a threatened ecoregion in southeastern Australia. Conventional management in the region involves continuous livestock grazing with few rest periods and regular fertilizer application. By using remotely sensed data on tree cover and extensive field data on livestock grazing regimes, soil chemistry, tree diameters, and tree regeneration, we show that the region is facing a tree regeneration crisis. Under conventional management, across the region, millions of hectares of land currently supporting tens of millions of trees will be treeless within decades from now. This would have severe negative ramifications for biodiversity and key ecosystem services, including water infiltration and shade provision for livestock. However, we identified an unexpected win-win solution for tree regeneration and commercial grazing. A relatively new practice in the region is fast-rotational grazing, characterized by prolonged rest periods in between short, intensive grazing events. The probability of regeneration under fast-rotational grazing was up to 4-fold higher than under conventional grazing, and it did not differ significantly from the probability of regeneration in ungrazed areas. In addition, trees were more likely to regenerate where soil nutrient levels were low. These findings suggest that the tree regeneration crisis can be reversed by applying low-input, fast-rotational grazing. New policy settings supporting these practices could signal a turning point for the region, from ecological decline to ecological recovery.
- Published
- 2009
- Full Text
- View/download PDF
21. Mind the sustainability gap.
- Author
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Fischer J, Manning AD, Steffen W, Rose DB, Daniell K, Felton A, Garnett S, Gilna B, Heinsohn R, Lindenmayer DB, Macdonald B, Mills F, Newell B, Reid J, Robin L, Sherren K, and Wade A
- Subjects
- Biodiversity, Conservation of Natural Resources, Greenhouse Effect, Public Policy, Research
- Abstract
Despite increasing efforts to reach sustainability, key global biophysical indicators such as climate change and biodiversity loss continue to deteriorate rather than improve. Ongoing failure to move towards sustainability calls into question the focus of current research and policy. We recommend two strategies for progress. First, sustainability must be conceptualized as a hierarchy of considerations, with the biophysical limits of the Earth setting the ultimate boundaries within which social and economic goals must be achieved. Second, transdisciplinary research programs must confront key normative questions facing modern consumer societies. The humanities should have a key role in such programs. Assisted by these strategies, ambitious targets that realistically reflect the biophysical limits of the life-support system of the Earth must be set and relentlessly worked towards.
- Published
- 2007
- Full Text
- View/download PDF
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