Journal articles: 'Urban renewal – Ontario – Toronto'

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De Sousa, Christopher. "Trying to Smart-In-Up and Cleanup Our Act by Linking Regional Growth Planning, Brownfields Remediation, and Urban Infill in Southern Ontario Cities." Urban Planning 2, no. 3 (August 24, 2017): 5–17. http://dx.doi.org/10.17645/up.v2i3.1026.

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The reuse of brownfields as locations for urban intensification has become a core strategy in government sustainability efforts aimed at remediating pollution, curbing sprawl and prioritizing renewal, regeneration, and retrofitting. In Ontario, Canada’s most populous, industrialized, and brownfield-laden province, a suite of progressive policies and programs have been introduced to not only facilitate the assessment and remediation of the brownfields supply, but to also steer development demand away from peripheral greenfields and towards urban brownfields in a manner that considers a wider regional perspective. This article examines the character and extent of brownfields infill development that has taken place in three Ontario cities (Toronto, Waterloo, and Kingston) since the provincial policy shift in the early 2000s. Using property assessment data and cleanup records, the research finds that redevelopment activity has been extensive in both scale and character, particularly in Toronto where the real estate market has been strong. While the results are promising in terms of government efforts to promote smarter growth that builds “in and up” instead of out, they also reveal that government could be doing more to facilitate redevelopment and influence its sustainability character, particularly in weaker markets.

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Kulisek, Larry, and Trevor Price. "Ontario Municipal Policy Affecting Local Autonomy: A Case Study Involving Windsor and Toronto." Articles 16, no. 3 (August 7, 2013): 255–70. http://dx.doi.org/10.7202/1017734ar.

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During the first great burst of urban growth in Canada from the beginning of the 20th century and on into the 1920s it was generally the municipalities, either singly or collectively, which fostered policy innovation and new services. Provinces generally did little at that time, either to foster new policies or rein in local autonomy. It was only after the economic setbacks of the depression and a renewed spirit of urban development after 1945 that provincial direction over municipalities became much more significant. This paper is a case study of two major policy crises which threatened the viability of the whole municipal system in Ontario. In the 1930s the Border Cities (Metropolitan Windsor) faced bankruptcy and economic collapse and placed in jeopardy the credit of the province. In the early 1950s the inability of Metropolitan Toronto to create area-wide solutions to severe servicing problems threatened to stall the main engine of provincial growth. The case study demonstrates how a reluctant provincial government intervened to create new metropolitan arrangements for the two areas and accompanied this with a greatly expanded structure of provincial oversight including a strengthened Ontario Municipal Board and a specific department to handle municipal affairs. The objective of the policy was to bolster local government rather than to narrow municipal autonomy.

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Sorensen, André, and Anna-Katharina Brenner. "Cities, Urban Property Systems, and Sustainability Transitions: Contested Processes of Institutional Change and the Regulation of Urban Property Development." Sustainability 13, no. 15 (July 28, 2021): 8429. http://dx.doi.org/10.3390/su13158429.

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Sustainability transitions research has emerged as one of the most influential approaches to conceptualizing the potential and practice of transformative system change to avoid climate catastrophe. Evolving from work on socio-technical systems via Geels’ multi-level perspective (MLP), this conceptual framework has contributed to understanding how complex systems in the contemporary world can be transformed. This paper contributes to the sustainability transitions literature in three main ways. First, the paper develops a conceptual framework focused on the urban property systems which regulate and support urban property, infrastructure and governance that are historically produced, are densely institutionalized, and through which public norms of property and governance are deeply embedded in and continually inscribed in urban space. Second, the paper suggests that urban property systems are continually and vigorously contested and demonstrate different modes of institutional change than those recognized by the existing sustainability transitions literature. Third, the paper illustrates the approach with a case study of the contested governance of property development in Toronto, Ontario, long one of the fastest growing cities in North America. The Toronto case suggests that institutions embedded in urban property systems are consequential and deserve more attention by those concerned with low-carbon transitions.

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Tovilla, Edgar. "Mind the Gap: Management System Standards Addressing the Gap for Ontario’s Municipal Drinking Water, Wastewater and Stormwater Ecosystem of Regulations." Sustainability 12, no. 17 (August 31, 2020): 7099. http://dx.doi.org/10.3390/su12177099.

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The research finds evidence in support of and wide recognition of the practical value of management system standards (MSS) by assisting municipalities in meeting their human health protection, environmental objectives, addressing environmental and property damage risks, and providing an additional mechanism of public accountability and transparency. Semi-structured interviews were applied to assess perceptions with practitioners and environmental non-governmental organizations on whether a similar approach to the legally required drinking water quality management standard (DWQMS) could be applied for the municipal wastewater and stormwater sectors. Twelve Ontario municipalities have adopted or are in the process of adopting an ISO 14001 environmental management system (EMS) standard for their wastewater and/or stormwater systems, which represents 66% of Ontario’s population. With the large urban centres (e.g., Toronto, York Region, Durham Region, Halton Region and Peel Region) adopting the standard, this is likely to influence small to medium-sized cities to follow a similar approach. Although, resources might be a factor preventing the cohort of smaller utilities voluntarily taking this path. Regulations governing Ontario’s municipal drinking water, wastewater and stormwater utilities were compared via gap analysis. Gaps on management of the system, performance monitoring, auditing and having minimum design criteria left the municipal wastewater and stormwater sectors behind in comparison with recently updated (2004–2008) regulatory framework for the drinking water sector. Based on the identification and review of significant gaps in wastewater and stormwater regulation (compared with the drinking water sector), environmental MSS should be incorporated to strengthen the regulatory framework of these sectors. These phenomena also depict a form of sustainable governance with the use of MSS, which are initiated, developed and regulated by non-state actors, recognizing the value of non-state rule instruments in the water, wastewater and stormwater sectors.

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White, Richard. "Urban Renewal Revisited: Toronto, 1950 to 1970." Canadian Historical Review 97, no. 1 (March 2016): 1–33. http://dx.doi.org/10.3138/chr.3265.

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Gough, William A. "Impact of Urbanization on the Nature of Precipitation at Toronto, Ontario, Canada." Journal of Applied Meteorology and Climatology 60, no. 4 (April 2021): 425–35. http://dx.doi.org/10.1175/jamc-d-20-0179.1.

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AbstractA newly developed precipitation phase metric is used to detect the impact of urbanization on the nature of precipitation at Toronto, Ontario, Canada, by contrasting the relative amounts of rain and snow. A total of 162 years of observed precipitation data were analyzed to classify the nature of winter-season precipitation for the city of Toronto. In addition, shorter records were examined for nearby climate stations in less-urbanized areas in and near Toronto. For Toronto, all winters from 1849 to 2010 as well as three climate normal periods (1961–90, 1971–2000, and 1981–2010) were thus categorized for the Toronto climate record. The results show that Toronto winters have become increasingly “rainy” across these time periods in a statistically significant fashion, consistent with a warming climate. Toronto was compared with the other less urban sites to tease out the impacts of the urban heat island from larger-scale warming. This yielded an estimate of 19%–27% of the Toronto shift in precipitation type (from snow to rain) that can be attributed to urbanization for coincident time periods. Other regions characterized by similar climates and urbanization with temperatures near the freezing point are likely to experience similar climatic changes expressed as a change in the phase of winter-season precipitation.

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Nicolson, Murray W. "The Irish Experience in Ontario: Rural or Urban?" Articles 14, no. 1 (August 13, 2013): 37–46. http://dx.doi.org/10.7202/1017880ar.

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The purpose of this paper is to respond to several new theories which, if accepted, could alter the historical perception of the role played by urban centres in the adjustment of Irish Catholics in nineteenth century Ontario. Donald Akenson, a rural historian, believes that the Canadian experience of Irish immigrants is not comparable to the American one. Akenson contends that the numerical dominance of Protestants within the national group and the rural basis of the Irish community, negated the formation of urban ghettos and allowed for a relative ease in social mobility. In comparison the American Irish were dominantly Catholic urban dwelling and ghettoized. In addition the new labour historians believe that the rise of the Knights of Labor caused the Orange and Catholic Irish in Toronto to resolve their generational hatred and set about to form a common working-class culture. This theory must presume that Irish Catholic culture was of little value to be rejected with such ease. The writer contends that neither theory is valid. In the ghettos of Toronto the fusion of an Irish peasant culture with traditional Catholism produced a new, urban, ethno-religious vehicle — Irish Tridentine Catholism. This culture, spread from the city to the hinterland and, by means of metropolitan linkage, throughout Ontario. Privatism created a closed Irish society, one they were born into and left when they died. Irish Catholics co-operated in labour organizations for the sake of their family's future, but never shared in the development of a new working-class culture with their old Orange enemies.

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Levin, Laura, and Kim Solga. "Building Utopia: Performance and the Fantasy of Urban Renewal in Contemporary Toronto." TDR/The Drama Review 53, no. 3 (September 2009): 37–53. http://dx.doi.org/10.1162/dram.2009.53.3.37.

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Toronto markets itself as a city in renewal, a “creative city” of the future full of arts and culture. Alongside the official pitch, a number of street-level underground initiatives reimagine Toronto's utopic future in a different way by means of site-specific performances.

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PICTON, ROGER M. "Selling national urban renewal: the National Film Board, the National Capital Commission and post-war planning in Ottawa, Canada." Urban History 37, no. 2 (July 6, 2010): 301–21. http://dx.doi.org/10.1017/s0963926810000374.

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ABSTRACT:Using film and archival evidence, this article focuses on post-war urban redevelopment in Ottawa, Ontario, Canada. During this period, two federal institutions, the National Capital Commission and the National Film Board, worked in tandem to disseminate the promise of post-war urban renewal. Film and planning techniques perfected during World War II would be used to sell national urban renewal to Canadians. Rooted in centralized planning, steeped in militarist rhetoric and embedded in authoritarian tendencies, federal plans for a new modern capital had tragic implications for the marginalized and dislocated residents of the inner-city neighbourhood of LeBreton Flats.

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Gordon, David, and Michelle Nicholson. "Beyond the tabula rasa: Gordon Stephenson and urban renewal in Kingston, Ontario." Town Planning Review 83, no. 3 (January 2012): 337–54. http://dx.doi.org/10.3828/tpr.2012.19.

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Schlegl, Lisa, and Sali A. Tagliamonte. "‘How do you get to Tim Hortons?’ Direction-giving in Ontario dialects." Canadian Journal of Linguistics/Revue canadienne de linguistique 66, no. 1 (February 16, 2021): 1–30. http://dx.doi.org/10.1017/cnj.2020.34.

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AbstractIn this study, we target the speech act of direction-giving using variationist sociolinguistic methods within a corpus of vernacular speech from six Ontario communities. Not only do we find social and geographical correlates to linguistic choices in direction-giving, but we also establish the influence of the physical layout of the community/place in question. Direction-giving in the urban center of Toronto (Southern Ontario) contrasts with five Northern Ontario communities. Northerners use more relative directions, while Torontonians use more cardinal directions, landmarks, and proper street names – for example, Go east on Bloor to the Manulife Centre. We also find that specific lexical choices (e.g., Take a right vs. Make a right) distinguish direction-givers in Northern Ontario from those in Toronto. These differences identify direction-giving as an ideal site for sociolinguistic and dialectological investigation and corroborate previous findings documenting regional variation in Canadian English.

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Moain, Sadeq. "Unpublished Mamluk Blazons and Mottos on Glazed pottery at the Royal Ontario Museum, Toronto, Canada." ICR Journal 3, no. 3 (April 15, 2012): 586–99. http://dx.doi.org/10.52282/icr.v3i3.553.

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The Mamluk Sultanate of Egypt lasted from the overthrow of the Ayyubids until the Ottoman conquest of Egypt in 1517. The sultanate’s ruling caste was composed of Mamluks, Arabised soldiers of predominantly Kipchak Turk and Circassian slave origin. Though it declined towards the end of its existence, at its height the sultanate represented the zenith of Egyptian and Levantine political, economic, and cultural glory in the Islamic era. Its quasi multicultural character is thus also of relevance when considering the renewal of contemporary Islamic culture and civilisation. This communication is focusing on sultans’ and emir’s blazons and mottos decorating some objects of the unpublished ROM collection and examining them as a line evidence for dating in their historic, art historic and hierarchal contexts.

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Filion, Pierre. "The Neighbourhood Improvement Plan." Articles 17, no. 1 (August 7, 2013): 16–28. http://dx.doi.org/10.7202/1017698ar.

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During the late 1960s and early 1970s the Canadian government effected a turnabout in its urban renewal policy, which culminated in the launching of the Neighbourhood Improvement Program in 1973. This program differed from prior forms of renewal by emphasizing the preservation of the built environment and citizen participation in neighbourhood planning. This article is concerned with examining the difference in the attitudes the city administrations of Montreal and Toronto took toward the federal program, and the impact of this difference on the results in the two cities. It appears that Toronto's mode of implementation was in the spirit of the federal policy revision while Montreal endeavoured to pursue traditional urban renewal objectives through its use of the program. These two approaches to the Neighbourhood Improvement Program are depicted respectively as expressions of a participatory and a centralized mode of policy making at the local level.

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14

Veitch, Michelle. "Urban Art Hotels and Gentrification: A Comparative Analysis of Toronto and London, Ontario." International Journal of Canadian Studies 56 (September 2017): 17–46. http://dx.doi.org/10.3138/ijcs.56.2017-0006.

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Maclellan, Duncan. "Planning Politics in Toronto: The Ontario Municipal Board and Urban Development Aaron A. Moore Toronto: University of Toronto Press, 2013. pp. 254." Canadian Journal of Political Science 48, no. 2 (June 2015): 488–89. http://dx.doi.org/10.1017/s0008423915000347.

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Kennedy, Christopher, Wenxi Olivia He, and Manson Fung. "Role of the construction sector in the economy of a city." Canadian Journal of Civil Engineering 31, no. 1 (January 1, 2004): 155–59. http://dx.doi.org/10.1139/l03-089.

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The need to renew civil infrastructure is particularly acute in urban centres. However, investment in infrastructure renewal has different economic implications compared with new construction, mainly having multiplier effects as opposed to real effects. Statistical techniques are used to study the factors that influence private sector commercial, industrial, and residential construction starts in the Greater Toronto Area (GTA). Regression equations for the construction sector are incorporated into a macroeconomic model of the GTA. This model is used to study the impacts of public construction spending on the GTA economy. Impacts produced by infrastructure investment are not limited to the construction industry but are seen over the whole economy. In the model simulation, a CAN$1.75 billion road investment in the second quarter of 1994 produced an additional CAN$375 million increase in regional gross domestic product (GDP).Key words: infrastructure investment, infrastructure renewal, regional economics, Greater Toronto Area.

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Merrens, Roy. "Port Authorities as Urban Land Developers." Articles 17, no. 2 (August 6, 2013): 92–105. http://dx.doi.org/10.7202/1017654ar.

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Port authorities have been important presences in Canada's port cities, playing major roles in determining the physical form and land-use functions of urban waterfront lands. Their formative roles warrant attention from scholars concerned with the city-building process in Canada. This study focuses upon one such body, The Toronto Harbour Commissioners, and how and why it has functioned as a land development agency. An analysis of the commissions Outer Harbour project between 1912 and 1968 shows the commissions central concern with land development: ostensibly presented as a harbour facility, the project was actually intended to be a key component in the commissions proposed redevelopment of Toronto's central waterfront for profitable commercial and residential use. The project also reveals the significance of landfilling in the commissions urban development role, and, incidentally, explains the existence of the three-mile artificial headland projecting out into Lake Ontario from Toronto's waterfront. The role of the commission as a development agency is explained in terms of its original 1911 mandate, which in turn reflects the intentions of the Toronto Board of Trade, the body that had led the drive to create the commission.

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Chan, T. W., J. R. Brook, G. J. Smallwood, and G. Lu. "Time-resolved measurements of black carbon light absorption enhancement in urban and near-urban locations of Southern Ontario, Canada." Atmospheric Chemistry and Physics Discussions 10, no. 8 (August 24, 2010): 19939–80. http://dx.doi.org/10.5194/acpd-10-19939-2010.

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Abstract. In this study a photoacoustic spectrometer (PA), a laser-induced incandescence instrument system (LII) and an aerosol mass spectrometer were operated in parallel for in situ measurements of black carbon (BC) light absorption enhancement. Results of a thermodenuder experiment using ambient particles in Toronto are presented first to show that LII measurements of BC are not influenced by particle coating while the PA response is enhanced and also that the nature of this enhancement is influenced by particle morphology. Comparisons of ambient PA and LII measurements at four different locations (suburban Toronto; a street canyon with heavy diesel bus traffic in Ottawa; adjacent to a commuter highway in Ottawa and; regional background air in and around Windsor, Ontario), show that the different meteorological conditions and atmospheric processes result in different particle light absorption enhancement and hence the specific attenuation coefficient (SAC). Depending upon location of measurement and the BC spherule diameter (primary particle size – PPS) measurement from the LII, the SAC varies from 2.6±0.04 to 22.5±0.7 m2 g−1. Observations from this study also show the active surface area of the BC aggregate, inferred from PPS, is an important parameter for inferring the degree of particle collapse of a BC particle. The predictability of the overall BC light absorption enhancement in the atmosphere depends not only on the coating mass but also on the source of the BC and on our ability to predict or measure the change in particle morphology as particles evolve.

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Eyles, N., and K. W. F. Howard. "A hydrochemical study of urban landslides caused by heavy rain: Scarborough Bluffs, Ontario, Canada." Canadian Geotechnical Journal 25, no. 3 (August 1, 1988): 455–66. http://dx.doi.org/10.1139/t88-051.

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Scarborough Bluffs is a 15 km long stretch of the Lake Ontario shoreline east of downtown Toronto. This heavily urbanized area currently represents Canada's most serious erosion problem. The worst affected zone is 1.5 km long and lies along South Marine Drive where 50 m high bluffs are failing by shallow retrogressive failures of jointed glacial clays over underlying deltaic sands and clays. The erosion rate is about four times that for the coastline as a whole.Heavy rains in the Toronto area in August and September 1986 produced a spate of slope failures and mud flows. Particularly heavy storms on September 10 and 29 triggered extensive retrogressive slope failures at South Marine Drive. Hydrochemical investigations of discharge waters suggest that slope failure was caused by surface runoff on the bluff top recharging lower slope areas by infiltration through joints in the upper clay capping. Discharge of water from the lower slope is impeded by less permeable barriers in the deltaic stratigraphy at the site and by a cover of clayey slope debris. Data suggest that provision for adequate drainage of the bluff top, by interceptor drains, is a prerequisite for controlling slope behaviour in the area. Key words: slopes, erosion, groundwater, hydrochemical, recharge, drainage.

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Gad, Gunter, and Deryck W. Holdsworth. "Looking Inside The Skyscraper: Size and Occupancy of Toronto Office Buildings, 1890-1950." Articles 16, no. 2 (August 8, 2013): 176–89. http://dx.doi.org/10.7202/1017788ar.

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Although the emergence of skyscrapers as a distinctive element in the downtown fabric symbolizes economic change and progress, research questions surrounding their appearance need to go beyond merely noting their height and facade detail. Using case studies in Toronto, Ontario, this paper investigates more useful measures such as floor space, tenancies, and employment levels that have been calculated for several generations of office buildings. The possibilities and limitations of fire insurance atlases, assessment rolls, street directories, and company records are examined. The case studies suggest the interrelatedness of forces at work in shaping office-district landscapes.

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Seifpour, Zeinab, Carol Kauppi, Kevin Fitzmaurice, Thomas Strickland, and Henri Pallard. "Intensified Spatial Injustice and Modern Urban Renewal Plans: A Case Study of Sudbury, Ontario, Canada." International Journal of Architectonic, Spatial, and Environmental Design 17, no. 2 (2022): 1–14. http://dx.doi.org/10.18848/2325-1662/cgp/v17i02/1-14.

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Anderson, Conor I., and William A. Gough. "Evolution of Winter Temperature in Toronto, Ontario, Canada: A Case Study of Winters 2013/14 and 2014/15." Journal of Climate 30, no. 14 (July 2017): 5361–76. http://dx.doi.org/10.1175/jcli-d-16-0562.1.

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Globally, 2014 and 2015 were the two warmest years on record. At odds with these global records, eastern Canada experienced pronounced annual cold anomalies in both 2014 and 2015, especially during the 2013/14 and 2014/15 winters. This study sought to contextualize these cold winters within a larger climate context in Toronto, Ontario, Canada. Toronto winter temperatures (maximum Tmax, minimum Tmin, and mean Tmean) for the 2013/14 and 2014/15 seasons were ranked among all winters for three periods: 1840/41–2015 (175 winters), 1955/56–2015 (60 winters), and 1985/86–2015 (30 winters), and the average warming trend for each temperature metric during these three periods was analyzed using the Mann–Kendall test and Thiel–Sen slope estimation. The winters of 2013/14 and 2014/15 were the 34th and 36th coldest winters in Toronto since record-keeping began in 1840; however these events are much rarer, relatively, over shorter periods of history. Overall, Toronto winter temperatures have warmed considerably since winter 1840/41. The Mann–Kendall analysis showed statistically significant monotonic trends in winter Tmax, Tmin, and Tmean over the last 175 and 60 years. These trends notwithstanding, there has been no clear signal in Toronto winter temperature since 1985/86. However, there was a statistically significant increase in the diurnal temperature range in that period, indicating an expansion of winter extremes. It is proposed that the possible saturation of urban heat island–related warming in Toronto may partially explain this increase in variation. Also, anomalies in the position of the polar jet stream over Toronto during these cold events are identified. No direct influence of major teleconnections on Toronto winter temperature is found.

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Fang, Cuilian, Cheol H. Jeong, and Greg J. Evans. "Urban Air Quality: Assessing Traffiffic and Building Architecture Impacts using Portable Measuring Devices in Toronto, Ontario." STEM Fellowship Journal 5, no. 1 (December 1, 2019): 5–12. http://dx.doi.org/10.17975/sfj-2019-004.

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Vehicle emissions are one of the largest local contributors to poor urban air quality. High emissions are often associated with traffic congestion, and pollution may also become trapped between tall buildings creating a street canyon effect. The spatial variability of traffic-related air pollutants in microenvironments should be considered in evaluating changes in urban planning. This study focuses on assessing the air quality and commuter exposure in Toronto, Ontario, Canada, specifically focusing on the effect of the King Street Pilot Project on local urban air quality by reducing traffic. Increased vehicular density is expected to contribute to higher urban pollution levels and tall buildings may trap these contaminants. Field measurements were made within the King Street Pilot area during weekday rush hours to capture the best representation of peak activity and pollutant levels when there were similar average wind speeds and directions for the sampling dates. A suite of portable devices was carried along predesigned and timed routes through traffic dense areas to measure vehicle-related air pollutants including black carbon (BC), ultrafine particles (UFP, particles smaller than 0.1 μm), and particulate matter (PM2.5, particles smaller than 2.5 μm). Data was normalized, corrected and analyzed using centralized pollutant while considering meteorological site measurements located about 1.5 km away from the study area. Results indicated higher BC and UFP levels during peak commuting times between 8 am to 10 am and relatively increased pollution levels within the area of tall buildings versus the area with shorter buildings. Strong spatial variations of BC and UFP were found, while PM2.5 levels remained relatively constant in the downtown area. Elevated levels of BC and UFP were observed around nearby construction sites. This study contributes to establishing a baseline to evaluate the King Street Pilot Project’s air quality impact as well as proposing potential methods of detailed data collection within microenvironments to observe the air quality of urban centres.

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Anderson, Vidya, William A. Gough, Matej Zgela, Dragan Milosevic, and Jelena Dunjic. "Lowering the Temperature to Increase Heat Equity: A Multi-Scale Evaluation of Nature-Based Solutions in Toronto, Ontario, Canada." Atmosphere 13, no. 7 (June 28, 2022): 1027. http://dx.doi.org/10.3390/atmos13071027.

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Nature-based solutions (NbS) present an opportunity to reduce rising temperatures and the urban heat island effect. A multi-scale study in Toronto, Ontario, Canada, evaluates the effect of NbS on air and land surface temperature through two field campaigns at the micro and meso scales, using in situ measurements and LANDSAT imagery. This research demonstrates that the application of NbS in the form of green infrastructure has a beneficial impact on urban climate regimes with measurable reductions in air and land surface temperatures. Broad implementation of green infrastructure is a sustainable solution to improve the urban climate, enhance heat and greenspace equity, and increase resilience.

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Burr, Christina. "Timothy W. Cobban, Cities of Oil: Municipalities and Petroleum Manufacturing in Southern Ontario, 1860–1960. Toronto: University of Toronto Press, 2013. Pp. 172. Maps." Urban History Review 43, no. 1 (2014): 42. http://dx.doi.org/10.7202/1030807ar.

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Perera, Nandana, Bahram Gharabaghi, Peter Noehammer, and Bruce Kilgour. "Road Salt Application in Highland Creek Watershed, Toronto, Ontario - Chloride Mass Balance." Water Quality Research Journal 45, no. 4 (November 1, 2010): 451–61. http://dx.doi.org/10.2166/wqrj.2010.044.

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Abstract Occurrence of increasing chloride concentrations in urban streams of cold climates, mainly due to road salt application, has raised concerns on its adverse effects on aquatic and terrestrial ecosystems. Therefore, there is a need for a better understanding of processes associated with road salt application and subsequent discharge into the environment in order to develop management practices to minimize detrimental effects of chlorides. The chloride mass analysis for the Highland Creek watershed based on four years of hourly monitoring data indicates that approximately 60% of the chlorides applied on the watershed enter streams prior to subsequent salting period, 85% of which occurs during the period between November and March. Contribution of private de-icing operations on chloride mass input within Highland Creek watershed was estimated to be approximately 38%, indicating its significance in overall chloride mass balance. Salt application rates, as well as chloride output in the streams, vary spatially based on land use, influencing chloride concentrations in surface waters. The estimated groundwater chloride concentration of 275 mg/L indicates that some aquatic organisms in Highland Creek would potentially be at risk even outside the winter period under dry weather flow conditions.

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Lyon, Craig, Anwar Haq, Bhagwant Persaud, and Steven T. Kodama. "Safety Performance Functions for Signalized Intersections in Large Urban Areas." Transportation Research Record: Journal of the Transportation Research Board 1908, no. 1 (January 2005): 165–71. http://dx.doi.org/10.1177/0361198105190800120.

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This paper describes the development of safety performance functions (SPFs) for 1,950 urban signalized intersections on the basis of 5 years of collision data in Toronto, Ontario, Canada. Because Toronto has one of the largest known, readily accessible, urban signalized intersection databases, it was possible to develop reliable, widely applicable SPFs for different intersection classifications, collision severities, and impact types. Such a comprehensive set of SPFs is not available for urban signalized intersections from data for a single jurisdiction, despite the considerable recent interest in use of these functions for analyses related to network screening, and the development, prioritization, and evaluation of treatments. The application of a straightforward recalibration process requiring relatively little data means that the SPFs calibrated can be used by researchers and practitioners for other jurisdictions for which these functions do not exist and are unlikely to exist for some time. The value of the functions is illustrated in an application to evaluate a topical safety measure—left-turn priority treatment for which existing knowledge is on a shaky foundation. The results of this empirical Bayes evaluation show that this treatment is quite effective for reducing collisions, particularly those involving left-turn side impacts.

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Helferty, Natalie. ""Localization": A means to reduce negative transportation impacts in the "natural city"." Ekistics and The New Habitat 71, no. 427-429 (December 1, 2004): 233–35. http://dx.doi.org/10.53910/26531313-e200471427-429193.

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The author runs "Natural Heritage Consulting" in Richmond Hill, Ontario, Canada. She is a former Adjunct Professor at Ryerson University having taught Applied Ecology as a joint program between the School of Occupational and Public Health and the School of Urban and Regional Planning. She has provided environmental policy input on government initiatives such as the formation of the Greenbelt around the City of Toronto in her capacity as a member of the Province of Ontario's Greenbelt Task Force. The text that follows is a revised and edited version of a paper presented by the author at the Natural City conference - "Success Stories" - organized by the Centre for Environment, University of Toronto from 31 May to 2 June, 2006.

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Chan, T. W., J. R. Brook, G. J. Smallwood, and G. Lu. "Time-resolved measurements of black carbon light absorption enhancement in urban and near-urban locations of southern Ontario, Canada." Atmospheric Chemistry and Physics 11, no. 20 (October 20, 2011): 10407–32. http://dx.doi.org/10.5194/acp-11-10407-2011.

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Abstract. In this study a photoacoustic spectrometer (PA), a laser-induced incandescence instrument system (LII) and an Aerosol Mass Spectrometer were operated in parallel for in-situ measurements of black carbon (BC) light absorption enhancement. Results of a thermodenuder experiment using ambient particles in Toronto are presented first to show that LII measurements of BC are not influenced by the presence of non-refractory material thus providing true atmospheric BC mass concentrations. In contrast, the PA response is enhanced when the non-refractory material is internally mixed with the BC particles. Through concurrent measurements using the LII and PA the specific absorption cross-section (SAC) can be quantified with high time resolution (1 min). Comparisons of ambient PA and LII measurements from four different locations (suburban Toronto; a street canyon with diesel bus traffic in Ottawa; adjacent to a commuter highway in Ottawa and; regional background air in and around Windsor, Ontario), show that different impacts from emission sources and/or atmospheric processes result in different particle light absorption enhancements and hence variations in the SAC. The diversity of measurements obtained, including those with the thermodenuder, demonstrated that it is possible to identify measurements where the presence of externally-mixed non-refractory particles obscures direct observation of the effect of coating material on the SAC, thus allowing this effect to be measured with more confidence. Depending upon the time and location of measurement (urban, rural, close to and within a lake breeze frontal zone), 30 min average SAC varies between 9 ± 2 and 43 ± 4 m2 g−1. Causes of this variation, which were determined through the use of meteorological and gaseous measurements (CO, SO2, O3), include the particle emission source, airmass source region, the degree of atmospheric processing. Observations from this study also show that the active surface area of the BC aggregate, which is measured by the LII as the PPS, is an important parameter for inferring the degree of particle collapse of a BC particle. In addition, PPS could be a useful measurement for indicating the importance of recently emitted BC (e.g. from gasoline or diesel engines) relative to the total measured BC in the atmosphere.

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Arangio, Andrea M., Pourya Shahpoury, Ewa Dabek-Zlotorzynska, and Athanasios Nenes. "Seasonal Aerosol Acidity, Liquid Water Content and Their Impact on Fine Urban Aerosol in SE Canada." Atmosphere 13, no. 7 (June 23, 2022): 1012. http://dx.doi.org/10.3390/atmos13071012.

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This study explores the drivers of aerosol pH and their impact on the inorganic fraction and mass of aerosol in the S.E. Canadian urban environments of Hamilton and Toronto, Ontario. We find that inter-seasonal pH variability is mostly driven by temperature changes, which cause variations of up to one pH unit. Wintertime acidity is reduced, compared to summertime values. Because of this, the response of aerosol to precursors fundamentally changes between seasons, with a strong sensitivity of aerosol mass to levels of HNO3 in the wintertime. Liquid water content (LWC) fundamentally influences the aerosol sensitivity to NH3 and HNO3 levels. In the summertime, organic aerosol is mostly responsible for the LWC at Toronto, and ammonium sulfate for Hamilton; in the winter, LWC was mostly associated with ammonium nitrate at both sites. The combination of pH and LWC in the two sites also affects N dry deposition flux; NO3− fluxes were comparable between the two sites, but NH3 deposition flux at Toronto is almost twice what was seen in Hamilton; from November to March N deposition flux slows down leading to an accumulation of N as NO3− in the particle phase and an increase in PM2.5 levels. Given the higher aerosol pH in Toronto, aerosol masses at this site are more sensitive to the emission of HNO3 precursors compared to Hamilton. For both sites, NOx emissions should be better regulated to improve air quality during winter; this is specifically important for the Toronto site as it is thermodynamically more sensitive to the emissions of HNO3 precursors.

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Seburn, David C. "Distribution of the exotic Pond Slider (Trachemys scripta) in Ontario." Canadian Field-Naturalist 129, no. 4 (January 30, 2016): 342. http://dx.doi.org/10.22621/cfn.v129i4.1756.

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The Pond Slider (Trachemys scripta) is a turtle native to the eastern United States, but, because of its popularity in the pet trade, it now occurs in many countries around the world as a result of escapes and the release of unwanted pets. The distribution of the Pond Slider in Ontario is reviewed based on 393 records obtained from various sources. Sliders have been reported from 130 spatially distinct sites in 35 districts. The Toronto area accounts for 67% of records, and more than 80% of reports are from urban areas. Pond Slider reports date back to the 1950s, but 63% of records are from 2010 or later. Sliders have been observed in Ontario during all months of the year except December. Sliders have bred in Ontario, but the spatial extent of successful reproduction remains unknown.

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Fraser, Alison. "Urban Prophets: Creating Graffiti as a Means of Negotiating the Constructs of Urban Public Spaces." Stream: Interdisciplinary Journal of Communication 7, no. 2 (May 4, 2016): 32–42. http://dx.doi.org/10.21810/strm.v7i2.128.

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For this examination, graffiti and neo-graffiti have been compared to public art in order to reveal the ideological constructions of urban public spaces. How does graffiti interact with the construction of urban public spaces? How is graffiti similar to and different from public art? Which of these art forms better represents the public and city living? By comparing public art to (neo)graffiti in Toronto, Ontario and Los Angeles, California, the gendered, racialized, and class-based exclusions present in R. Florida's (2002) creative cities framework as theorized by authors such as N. Smith (1996), Sharon Zukin (1996), and G. Standing (2011) can be revealed. Urban public spaces are carefully shaped by those in control, the government and corporations, with the intention of creating spaces and citizens within those spaces that can be a functioning part of their neoliberal capitalist system. Graffiti and neo-graffiti act as a visual interruption to this system, which in turn can be thought of as physically represented by public art. In this way (neo)graffiti is created by a minority of citizens with the hopes of reclaiming their right to exist in urban public spaces despite layers of ideological exclusions.For this examination, graffiti and neo-graffiti have been compared to public art in order to reveal the ideological constructions of urban public spaces. How does graffiti interact with the construction of urban public spaces? How is graffiti similar to and different from public art? Which of these art forms better represents the public and city living? By comparing public art (neo)graffiti in Toronto, Ontario and Los Angeles California, the racialized and class-based exclusions present in R. Florida’s (2002) creative cities framework theorized by authors such as N. Smith (1996), Sharon Zukin (1996), and G. Standing (2011) can be revealed. Urban public spaces are carefully shaped by those in control (the government and corporations) with the intention of creating spaces and citizens within those spaces that can be a functioning part of their system. Graffiti and neo-graffiti act as a visual interruption to this system as represented by public art. In this way (neo)graffiti is created by a minority of citizens with the hopes of reclaiming their right to exist in urban public spaces despite the layers of exclusions.

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Sahely, Halla R., Christopher A. Kennedy, and Barry J. Adams. "Developing sustainability criteria for urban infrastructure systems." Canadian Journal of Civil Engineering 32, no. 1 (February 1, 2005): 72–85. http://dx.doi.org/10.1139/l04-072.

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Research in the area of sustainable urban infrastructure reflects the need to design and manage engineering systems in light of both environmental and socioeconomic considerations. A principal challenge for the engineer is the development of practical tools for measuring and enhancing the sustainability of urban infrastructure over its life cycle. The present study develops such a framework for the sustainability assessment of urban infrastructure systems. The framework focuses on key interactions and feedback mechanisms between infrastructure and surrounding environmental, economic, and social systems. One way of understanding and quantifying these interacting effects is through the use of sustainability criteria and indicators. A generic set of sustainability criteria and subcriteria and system-specific indicators is put forward. Selected indicators are quantified in a case study of the urban water system of the City of Toronto, Ontario, Canada.Key words: sustainable infrastructure, sustainability criteria and indicators, energy use, urban water systems.

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Jardine, Claire M., Nicol Janecko, Mike Allan, Patrick Boerlin, Gabhan Chalmers, Gosia Kozak, Scott A. McEwen, and Richard J. Reid-Smith. "Antimicrobial Resistance in Escherichia coli Isolates from Raccoons (Procyon lotor) in Southern Ontario, Canada." Applied and Environmental Microbiology 78, no. 11 (March 23, 2012): 3873–79. http://dx.doi.org/10.1128/aem.00705-12.

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ABSTRACTWe conducted a cross-sectional study to determine the prevalence of antimicrobial resistance (AMR) in fecalEscherichia coliisolates from raccoons (Procyon lotor) living in Ontario, Canada. From June to October 2007, we trapped raccoons in three areas: one primarily urban site around Niagara, one primarily rural site north of Guelph, and one at the Toronto Zoo. In addition, we conducted a longitudinal study at the Toronto Zoo site to investigate the temporal dynamics of fecalE. coliand AMR in raccoons. Reduced susceptibility to ≥1 antimicrobial agent was detected inE. coliisolates from 19% of 16 raccoons at the urban site, 17% of 29 raccoons from the rural site, and 42% of 130 samples collected from 59 raccoons at the zoo site. Raccoons from the zoo site were significantly more likely to shedE. coliwith reduced susceptibility to ≥1 antimicrobial agent than animals from the rural site (odds ratio [OR], 3.41; 95% confidence interval [CI], 1.17 to 12.09;P= 0.02). Resistance to expanded-spectrum cephalosporins (and the associatedblaCMY-2gene) was detected in two animals from the zoo site and one animal from the rural site. Serotyping and pulsed-field gel electrophoresis analysis show that raccoons on the zoo grounds harbor a diverse assemblage ofE. coli, with rapid bacterial turnover within individuals over time. Our study indicates that raccoons may shed resistant bacteria of public health significance and that raccoons have the potential to disseminate these bacteria throughout their environment.

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Bardekjian, Adrina, Michael Classens, and L. Anders Sandberg. "Reading the urban landscape: the case of a campus tour at York University, Toronto, Ontario, Canada." Journal of Environmental Studies and Sciences 2, no. 3 (July 21, 2012): 249–56. http://dx.doi.org/10.1007/s13412-012-0084-x.

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Robinson, Danielle. "Modernizers and Traditionalists in Postwar Hamilton, Ontario: The Fate of a Farmers' Market, 1945-1965." Articles 36, no. 1 (May 16, 2013): 45–59. http://dx.doi.org/10.7202/1015819ar.

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Between 1945 and 1965, the Hamilton Farmers' Market was hailed as both an irreplaceable cultural and historical gem, and condemned as an antiquated institution not worth the land it occupied. The market debates occurred in the midst of post-World War II suburban sprawl, fuelled and facilitated by the automobile. This change in the postwar landscape accommodated the rise of powerful modernist ideology as well as a traditionalist response. Debates over the market's fate touched on reducing, relocating, or eliminating the market completely. The chosen solution—constructing a parking ramp on the market site, and housing the market on the ground level of the structure—was implemented by October 1960. This was a victory for the city's modernizers, and foreshadowed the more extensive urban renewal efforts that dominated regional politics in the late 1960s and 1970s.

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TAGLIAMONTE, SALI A. "So different and pretty cool! Recycling intensifiers in Toronto, Canada." English Language and Linguistics 12, no. 2 (July 2008): 361–94. http://dx.doi.org/10.1017/s1360674308002669.

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This article presents a synchronic quantitative study of the intensifier system in Toronto, the largest urban centre in Canada. The data comprise nearly 10,000 adjectival heads, as in I was so hungry and I was getting really nauseous (TOR/2m). The distribution of intensifiers in apparent time provides startling evidence of change. Very is quickly moving out of favour and really has expanded dramatically. Moreover, there is evidence to suggest that other intensifiers are on the rise – so and pretty. Testing a series of contextual factors known to operate in the development of intensifiers (e.g. adjective function and type) as well as their intersection with social factors (e.g. age and sex) reveals evidence of ongoing delexicalization, but not as part of a continual longitudinal process. Instead, the profile of change reveals recycling, suggesting that the mechanisms of intensifier renewal may be more complex than previously thought.

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Saarinen, O. W. "Provincial Land Use Planning Initiatives in the Town of Kapuskasing." Urban History Review 10, no. 1 (October 30, 2013): 1–15. http://dx.doi.org/10.7202/1019152ar.

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Kapuskasing, Ontario warrants special mention in the history of Canadian land use planning. The town first acquired special prominence immediately following World War I when it was the site of the first provincially-planned resource community in Canada. The early layout of the settlement reflected the imprints of both the "city beautiful" and "garden city" movements. After 1958, the resource community then became the focus for an important experiment in urban "fringe" rehabilitation at Brunetville, a suburban area situated just east of the planned Kapuskasing townsite. The author suggests that the role of the Brunetville experiment in helping to change the focus of urban renewal in Canada from redevelopment to rehabilitation has not been fully appreciated.

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Haines, Charles. "Saddlemyer, Ann, ed. Early Stages: Theatre in Ontario 1800-1914. Toronto: University of Toronto Press, 1990. Pp. xiii, 413. 105 photographs & drawings. $40 (cloth); $17.95 (paper)." Urban History Review 20, no. 1 (1991): 50. http://dx.doi.org/10.7202/1017566ar.

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Scheim, Ayden I., Ruby Sniderman, Ri Wang, Zachary Bouck, Elizabeth McLean, Kate Mason, Geoff Bardwell, et al. "The Ontario Integrated Supervised Injection Services Cohort Study of People Who Inject Drugs in Toronto, Canada (OiSIS-Toronto): Cohort Profile." Journal of Urban Health 98, no. 4 (June 28, 2021): 538–50. http://dx.doi.org/10.1007/s11524-021-00547-w.

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AbstractThe Ontario Integrated Supervised Injection Services cohort in Toronto, Canada (OiSIS-Toronto) is an open prospective cohort of people who inject drugs (PWID). OiSIS-Toronto was established to evaluate the impacts of supervised consumption services (SCS) integrated within three community health agencies on health status and service use. The cohort includes PWID who do and do not use SCS, recruited via self-referral, snowball sampling, and community/street outreach. From 5 November 2018 to 19 March 2020, we enrolled 701 eligible PWID aged 18+ who lived in Toronto. Participants complete interviewer-administered questionnaires at baseline and semi-annually thereafter and are asked to consent to linkages with provincial healthcare administrative databases (90.2% consented; of whom 82.4% were successfully linked) and SCS client databases. At baseline, 86.5% of participants (64.0% cisgender men, median ([IQR] age= 39 [33–49]) had used SCS in the previous 6 months, of whom most (69.7%) used SCS for <75% of their injections. A majority (56.8%) injected daily, and approximately half (48.0%) reported fentanyl as their most frequently injected drug. As of 23 April 2021, 291 (41.5%) participants had returned for follow-up. Administrative and self-report data are being used to (1) evaluate the impact of integrated SCS on healthcare use, uptake of community health agency services, and health outcomes; (2) identify barriers and facilitators to SCS use; and (3) identify potential enhancements to SCS delivery. Nested sub-studies include evaluation of “safer opioid supply” programs and impacts of COVID-19.

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Hadayeghi, Alireza, Amer S. Shalaby, and Bhagwant Persaud. "Macrolevel Accident Prediction Models for Evaluating Safety of Urban Transportation Systems." Transportation Research Record: Journal of the Transportation Research Board 1840, no. 1 (January 2003): 87–95. http://dx.doi.org/10.3141/1840-10.

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A series of macrolevel prediction models that would estimate the number of accidents in planning zones in the city of Toronto, Ontario, Canada, as a function of zonal characteristics were developed. A generalized linear modeling approach was used in which negative binomial regression models were developed separately for total accidents and for severe (fatal and nonfatal injury) accidents as a function of socio-economic and demographic, traffic demand, and network data variables. The variables that had significant effects on accident occurrence were the number of households, the number of major road kilometers, the number of vehicle kilometers traveled, intersection density, posted speed, and volume-capacity ratio. The geographic weighted regression approach was used to test spatial variations in the estimated parameters from zone to zone. Mixed results were obtained from that analysis.

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Greenberg, Ken. "Toward the green city through revitalizing major obsolescent urban lands." Ekistics and The New Habitat 71, no. 424-426 (June 1, 2004): 30–34. http://dx.doi.org/10.53910/26531313-e200471424-426218.

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The author, an architect and urban designer, has played a leading role on a broad range of assignments in highly diverse urban settings in North America and Europe. Much of his work focuses on the rejuvenation of downtowns, waterfronts, neighborhoods, and campus master planning. His projects include the award-winning Saint Paul on the Mississippi Development Framework, the Brooklyn Bridge Park on the East River in New York, the East River waterfront in Lower Manhattan, the Fan Pier in Boston, the Southwest and Southeast Waterfronts in Washington, DC, the Vision Plan for Washington DC, Kendall Square and North Point/Lechmere Square in Cambridge, the Downtown Hartford Economic and Urban Design Action Strategy and the Downtown Master Plan for Fort Lauderdale. Current efforts include the " Big Picture for the Big Dig": the Rose Kennedy Greenway in Boston, the renewal of Regent Park, a major public housing project in Toronto; the implementation of the Convention District Master Plan in San Juan, P.R., and Urban Design advice for the Cincinnati Center City Development Corp (3CDC). In each city, with each project, his strategic, consensus-building approach has led to coordinated planning and a renewed focus on urban design. The text that follows is an edited and revised version of a paper presented at the international symposion on"The Natural City, " Toronto, 23-25 June, 2004, sponsored by the University of Toronto's Division of the Environment, Institute for Environmental Studies, and the World Society for Ekistics.

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YOKOHARI, Makoto, and Kazuhiko TAKEUCHI. "Restoration of Urban Ecosystem on the Lake Ontario Waterfront of Toronto, Canada; Tommy Thompson Park Case Study." Journal of the Japanese Institute of Landscape Architecture 58, no. 5 (1994): 53–56. http://dx.doi.org/10.5632/jila.58.5_53.

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Doucet, Michael J. "Robert F. Harney, ed. Gathering Place: Peoples and Neighbourhoods of Toronto, 1834-1945. Toronto: Multicultural History Society of Ontario, 1985. Pp. 304. 22 black and white plates. $9.95." Urban History Review 14, no. 3 (1986): 290. http://dx.doi.org/10.7202/1018092ar.

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45

Hosang, Stephanie, Natasha Kithulegoda, and Noah Ivers. "Documentation of Behavioral Health Risk Factors in a Large Academic Primary Care Clinic." Journal of Primary Care & Community Health 13 (January 2022): 215013192210744. http://dx.doi.org/10.1177/21501319221074466.

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Objective: To determine the prevalence of alcohol, smoking, and physical activity status documentation at a family health team in Toronto, Ontario, and to explore the patient characteristics that predict documentation of these lifestyle risk factor statuses. Design: Manual retrospective review of electronic medical records (EMRs). Setting: Large, urban, academic family health team in Toronto, Ontario. Participants: Patients over the age of 18 that had attended a routine clinical appointment in March, 2018. Main Outcome Measures: Prevalence and content of risk factor status in electronic medical records for alcohol, smoking, and physical activity. Results: The prevalence of alcohol, smoking, and physical activity documentation was 86.4%, 90.4%, and 66.1%, respectively. These lifestyle risk factor statuses were most often documented in the “risk factors” section of the EMR (83.7% for alcohol, 88.1% for smoking, and 47.9% for physical activity). Completion of a periodic health review within 1 year was most strongly associated with documentation (alcohol odds ratio [OR] 9.79, 95% Confidence Interval [CI] 2.12, 45.15; smoking OR 1.77 95% CI 0.51, 6.20; physical activity OR 3.52 95% CI 1.67, 7.40). Conclusion: Documentation of lifestyle risk factor statuses is strongly associated with having a recent periodic health review. If “annual physicals” continue to decline, primary care providers should final additional opportunities to address these key determinants of health.

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Grapentine, Lee, Quintin Rochfort, and Jiri Marsalek. "Benthic Responses to Wet-Weather Discharges in Urban Streams in Southern Ontario." Water Quality Research Journal 39, no. 4 (November 1, 2004): 374–91. http://dx.doi.org/10.2166/wqrj.2004.050.

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Abstract Urban stormwater and combined sewer overflow (CSO) discharges are important sources of sediment and contaminants (trace metals, PAHs, nutrients and road salts), and cause changes in flow, sediment, chemical and thermal regimes of receiving waters. Over the past several years, benthic conditions of streams representing a range of exposure environments were assessed in Hamilton, Toronto, Oshawa and Kingston, Ontario. Studies progressed from initial surveys of sediment contaminant levels, sediment toxicity and benthic invertebrate community structure to more spatially intensive sampling and experimental approaches that included the use of artificial substrates, in situ water toxicity tests and measurements of contaminant bioaccumulation. Results showed that while sediments and some biota at sites exposed to wet-weather discharges were often contaminated with metals and PAHs and enriched with nutrients, significant biological degradation measured by sediment toxicity or depauperated benthic communities was not evident. Exposure to stormwater discharges at sites below outfalls could alter the composition of benthic communities, but these effects were not strongly related to contaminant concentrations in sediment or invertebrate tissue. No outfall-associated toxicity was observed for caged amphipods held in the water column. Effects of wet-weather discharges on benthic communities at the urban stream sites studied appear to be small, and their detection was limited by several inherent conditions, including natural heterogeneity in the distribution of benthic invertebrates, episodic (intermittent) exposure to discharges and contaminant fluxes allowing some recovery, “background” levels of disturbance, poorly delineated changes in communities caused by physical effects such as flow and sediment transport, and community response dynamics. Detection of stormwater discharge effects should be improved by sampling on smaller temporal and multiple spatial scales to better quantify stressor exposure and invertebrate responses.

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Elliott, Bruce S. "Piva, Michael J., ed. A History of Ontario: Selected Readings. Toronto: Copp Clark Pitman, 1988. Pp. 322. Illustrations. $15.95." Urban History Review 17, no. 2 (1988): 131. http://dx.doi.org/10.7202/1017667ar.

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McMullin, Richard Troy, Katherine Drotos, David Ireland, and Hanna Dorval. "Diversity and conservation status of lichens and allied fungi in the Greater Toronto Area: results from four years of the Ontario BioBlitz." Canadian Field-Naturalist 132, no. 4 (July 11, 2019): 394–406. http://dx.doi.org/10.22621/cfn.v132i4.1997.

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Bioblitzes are typically 24-hour biological surveys of a defined region carried out by taxonomic specialists, citizen scientists, and the general public. The largest in Canada is the Ontario BioBlitz, an annual event held in the Greater Toronto Area (GTA). Between 2013 and 2016, we examined the feasibility of including lichens and allied fungi in the Ontario BioBlitz. These taxa are often overlooked, understudied, and taxonomically difficult. We completed a bioblitz in each of the four major watersheds in the GTA and recorded 138 species in 72 genera which, combined with all previous collections, totals 180 species in 88 genera in the area. Thirteen of the species we collected are provincially ranked as S1 (critically imperilled), S2 (imperilled), or S3 (vulnerable). We collected Lecanora carpinea for the first time in Ontario. Our results provide a baseline list of GTA lichens that can be used for monitoring. This is one of the first detailed lichen surveys of a major North American urban area and it demonstrates that rapid bioblitz surveys are proficient in capturing lichen diversity despite their inconspicuous nature and the advanced microscopy and chemical analyses required for their identification.

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Rosatte, Rick, Paula Kelly, and Mike Power. "Home Range, Movements, and Habitat Utilization of Striped Skunk (Mephitis mephitis) in Scarborough, Ontario, Canada: Disease Management Implications." Canadian Field-Naturalist 125, no. 1 (January 1, 2011): 27. http://dx.doi.org/10.22621/cfn.v125i1.1121.

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A total of 28 Striped Skunks (Mephitis mephitis) were fitted with radio-transmitters and their movements were monitored in Scarborough (Toronto), Ontario, in 1986 and 1987. Mean annual home range size for combined sex and age classes of Striped Skunks was 0.9 km2 (SD = 1.4) (range = 0.1-5.0 km2). Home ranges were smaller during winter (avg = 0.04 km2, SD = 0.05) than during fall (avg = 0.67 km2, SD = 1.09) (P = 0.055) but not different from ranges during spring (avg = 0.25 km2, SD = 0.31) or summer (avg = 0.27 km2, SD = 0.43). Nightly movements ranged between 0.1 km and 3.0 km and were greatest during October. Skunks were located more often in field habitats (56% of observations) than in residential (23%), field/industrial (10%), or industrial (8%) habitats. Ecological data on Striped Skunks were used in the design of rabies control tactics for use in urban areas in Ontario, Canada.

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Larson, Doug W., Uta Matthes, Peter E. Kelly, Jeremy Lundholm, and John A. Gerrath. "The Urban Cliff Hypothesis and its relevance to ekistics." Ekistics and The New Habitat 71, no. 424-426 (June 1, 2004): 76–82. http://dx.doi.org/10.53910/26531313-e200471424-426228.

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The Cliff Ecology Research Group (CERG), Department of Integrative Biology, University of Guelph, Guelph, Ontario, Canada, has been in existence since 1985 when its members began working on the ecology of the Niagara Escarpment (fig. 1). In 1988 they discovered a stand of ancient trees growing on the cliffs and in 1989 they discovered that in fact the escarpment cliffs support the oldest and least disturbed forest ecosystem in Canada. Individual living trees older than 1,300 years are still present and the forest appears to be in steady state. CERG's work on the ancient trees led to the idea that cliffs serve as refuges for many species including ancient humans. That observation led to the development of the Urban Cliff Hypothesis that is described in this paper and was presented at the international symposion on " The Natural City, " Toronto, 23-25 June, 2004, sponsored by the University of Toronto's Division of the Environment, Institute for Environmental Studies, and the World Society for Ekistics, and also led to the recent book entitled The Urban Cliff Revolution.

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Journal articles on the topic 'Urban renewal – Ontario – Toronto'

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