Abstract
While urban forests are often identified as part of climate change adaptation and mitigation strategies, less attention has been given to vulnerabilities urban trees may have to a changing climate and practitioners’ response to those vulnerabilities. Yet, current planting and management decisions will impact how urban forests fare under future climatic conditions. We explore a case study of Mississauga (Ontario, Canada) to examine (1) if common urban forest species are vulnerable to two scenarios of projected climate change, (2) the experiences and responses of urban forestry practitioners to climate change, and (3) whether urban forestry practitioners’ experience and practice are aligned with the vulnerability assessment. Vulnerabilities of 27 common species were examined based on 2071–2100 regional climate projections. Interviews were then conducted with practitioners working in the public and private sectors. The results suggest that the majority of examined species will be vulnerable to multiple conditions associated with projected climate. Practitioners all perceive recent changes in climate and extreme weather patterns, but do not prioritize future climate conditions in their species selection decisions. Moreover, they expressed uncertainty about how to make species selection decisions in light of climate change. Given the predicted vulnerabilities, alternative species need to be considered or more management resources (e.g., for watering) will be required to maintain the current composition. However, the lack of focus on future conditions by practitioners raises concerns, while also highlighting the need for more information about appropriate management strategies.
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References
Almas AD, Conway TM (2016) The role of native species in municipal urban forest planning and practice: a case study of Carolinian Canada. Urban Forestry Urban Green 17:54–62. https://doi.org/10.1016/j.ufug.2016.01.015
Ameye M, Wertin TM, Bauweraerts I, McGuire MA, Teskey RO, Steppe K (2012) The effect of induced heat waves on Pinus taeda and Quercus rubra seedlings in ambient and elevated CO2 atmospheres. N Phytol 196:448–461. https://doi.org/10.1111/j.1469-8137.2012.04267.x
Arnfield AJ (2003) Two decades of urban climate research: a review of turbulence, exchanges of energy and water, and the urban heat island. Int J Climatol 23:1–26. https://doi.org/10.1002/joc.859
Bauweraerts I, Ameye M, Wertin TM, McGuire MA, Teskey RO, Steppe K (2014) Water availability is the decisive factor for the growth of two tree species in the occurrence of consecutive heat waves. Agric For Meteorol 189–190:19–29. https://doi.org/10.1016/j.agrformet.2014.01.001
Brandt L (2014) Assessing climate change vulnerability of urban forests and natural ecosystems in the midwest. Morton Arboretum, Lisle, Illinois
Brandt LA, Lewis AD, Scott L, Darling L, Fahey RT, Iverson L, Nowak DJ, Bodine AR, Bell A, Still S, Butler PR, Dierich A, Handler SD, Janowiak MK, Matthews SN, Miesbauer JW, Peters M, Prasad A, Shannon PD, Stotz D, Swanston CW (2017) Chicago wilderness region urban forest vulnerability assessment and synthesis: a report from the urban forestry climate change response framework Chicago wilderness pilot project. General Technical Report NRS-168. Forest Service Northern Research Station, Newton Square, PA.
Brown RD, Vanos J, Kenny N, Lenzholzer S (2017) Designing urban parks that ameliorate the effects of climate change. Landsc Urban Plan 138:118–131. https://doi.org/10.1016/j.landurbplan.2015.02.006
Brune M (2016) Urban trees under climate change: potential impacts of dry spells and heat waves in three German regions in the 2050s. German, Climate Service Center, Hamburg
Cheng CS, Auld H, Li G, Klaassen J, Li Q (2007) Possible impacts of climate change on freezing rain in south-central Canada using downscaled future climate scenarios. Nat Hazards Earth Syst Sci 7(1):71–87. https://doi.org/10.5194/nhess-7-71-2007
City of Guelph (2017) Healthy landscapes—plant list native and drought-tolerant plants. City of Guelph, Guelph, Ontario. http://guelph.ca/living/house-and-home/healthy-landscapes/landscape-planning/plant/native-drought-tolerant-plants/. Accessed 7 Apr 2019
City of Mississauga (2014) Natural heritage and urban forest strategy. City of Mississauga, Mississauga, Ontario. http://www7.mississauga.ca/Departments/Rec/parks/nhufs/pdf/FINAL_nhufs.pdf. Accessed 7 Apr 2019
City of Mississauga (2017) Population, demographics, & housing. City of Mississauga, Mississauga, Ontario. http://www.mississauga.ca/data. Accessed 7 Apr 2019
City of Toronto (2012) Drought tolerant landscaping: a resource for development. City of Toronto. https://www.toronto.ca/city-government/planning-development/official-plan-guidelines/design-guidelines/drought-tolerant-landscaping/. Accessed 7 Apr 2019
Climate-Data (2015) Climate trends of Mississauga area. Climate-Data. http://en.climate-data.org/location/1676/. Accessed 7 Apr 2019
Fahey RT, Bailecki MB, Carter DR (2013) Tree growth and resilience to extreme drought across an urban land-use gradient. Arboric Urban Forestry 39(6):279–285
Foran CM, Baker KM, Narcisi JM, Linkov I (2015) Susceptibility assessment of urban tree species in Cambridge, MA, from future climatic extremes. Environ Syst Decis 35:389–400. https://doi.org/10.1007/s10669-015-9563-4
Forests Ontario (2014) Homeowner’s guide: maintaining your trees following ice storms and how to prevent future damage. Forests Ontario, Toronto
Gauthier S, Bernier P, Burton PJ, Edwards J, Isaac K, Isabel N, Jayen K, Le Goff H, Nelson EA (2014) Climate change vulnerability and adaptation in the managed Canadian boreal forest. Environ Rev 22:256–285
Hauer RJ, Dawson JO, Werner LP (2006) Trees and ice storms: the development of ice storm-resistant urban tree populations, 2nd edn. College of Natural Resources, University of Wisconsin-Stevens Point, and the Department of Natural Resources and Environmental Sciences and the Office of Continuing Education, University of Illinois at Urbana-Champaign, Stevens Point, WI
Hogg EH, Barr AG, Black TA (2013) A simple soil moisture index for representing multi-year drought impacts on aspen productivity in the western Canadian interior. Agric For Meteorol 178–179:173–182
Hotte N, Lorien N, Barron S, Cowan J, Zhaohua CC (2015) The social and economic values of Canada’s urban forests: a national synthesis. UBC Faculty of Forestry and Canadian Forest Services, Vancouver
IPCC (2013) The physical science basis: contribution of working group I to the fifth assessment report of the Intergovernmental Panel on Climate Change. Cambridge University Press, Cambridge
Kendal D, Baumann J (2016) The city of Melbourne’s future urban forest: identifying vulnerability to future temperatures. Melbourne, The City of Melbourne. http://www.nespurban.edu.aupublications-resourcesresearch-reportsCAULRRCoMFutureUrbanForestNov.pdf. Accessed 7 Apr 2019
Laćan I, McBride JR (2008) Pest vulnerability matrix (PMV): a graphi model for assessing the interaction between tree species diversity and urban forest susceptibility to insects and diseases. Urban Forestry Urban Green 7:291–300
Loehle C (1998) Height growth rate tradeoffs determine northern and southern range limits for trees. J Biogeogr 25(4):735–742
McDermid J, Fera S, Hogg A (2015) Projections for Onatrio: an updated synthesis for policymakers and planners. Ministry of Natural Resources and Forests, Climate Change Research Report CCRR-44. Toronto, Government of Ontario
McKenney DW, Pedlar JH, Lawrence K, Campbell K, Hutchinson MF (2007a) Beyond traditional hardiness zones: using climate envelopes to map plant range limits. BioScience 57(11):929–937. https://doi.org/10.1641/B571105
McKenney DW, Pedlar JH, Lawrence K, Campbell K, Hutchinson MF (2007b) Potential impacts of climate change on the distribution of North American trees. BioScience 57(11):939–948. https://doi.org/10.1641/B571106
McKenney D, Pedlar J, Hutchinson M, Papadopol P, Lawrence K, Campbell K, Milewska E, Hopkinson RF, Price D (2013) Spatial climate models for Canada’s forestry community. Forest Chron 89(5):659–663
McPherson EG, Berry AM, van Doorn NS (2018) Performance testing to identify climate-ready trees. Urban Forestry Urban Green 29:28–39. https://doi.org/10.1016/j.ufug.2017.09.003
Ministry of Natural Resources (2009) The ecosystems of Ontario, part 1: ecozones and ecoregions. Science and Information Branch, Ministry of Natural Resources, Sault Ste. Marie, ON
Natural Resource Canada (2004) The Atlas of Canada: map of forest regions of Canada. Ottawa, Natural Resources Canada. https://www.nrcan.gc.ca/earth-sciences/geography/atlas-canada/selected-thematic-maps/16874#forestdistribution. Accessed 7 Apr 2019
Needoba A, Porter E, LeFrancois C, Dobbs C, Allen B, Cox T, Coulthard M (2016) Urban forest climate adaptation framework for metro Vancouver: tree species selection, planting, and management. Vancouver, City of Vancouver. http://www.metrovancouver.org/services/regional-planning/PlanningPublications/UrbanForestClimateAdaptationFrameworkTreeSpeciesSelection.pdf. Accessed 7 Apr 2019
Nitschke CR, Nichols S, Allen K, Dobbs C, Livesley SJ, Baker PJ, Lynch Y (2017) The influence of climate and drought on urban tree growth in southeast Australia and the implications for future growth under climate change. Landsc Urban Plan 167:275–287. https://doi.org/10.1016/j.landurbplan.2017.06.012
Nowak DJ, Crane DE (2002) Carbon storage and sequestration by urban trees in the USA. Environ Pollut 116:381–389
Ordóñez C, Duinker PN (2014) Assessing vulnerability of urban forests to climate change. Environ Rev 22:311–321. https://doi.org/10.1139/er-2013-0078
Ordóñez C, Duinker PN (2015) Climate change vulnerability assessment of the urban forest in three Canadian cities. Climatic Change 131(4):531–543. https://doi.org/10.1007/s10584-015-1394-2
Plan-It Geo (2014) An Assessment of Urban Forest Canopy, Mississauga, Ontario. Plan-It Geo, Arvada, CO
Pregitzer CC, Charlop-Powers S, McCabe C, Hiple A, Gunther B, Bradford MA (2019) Untapped common ground: the care of forested natural areas in American cities. Natural Areas Conservancy, New York
Roloff A (2013) Trees in the city: special features, function, benefits, types, risks. Ulmer Eugen Verlag, Stuttgart
Roy S, Byrne J, Pickering C (2012) A systematic quantitative review of urban tree benefits, costs, and assessment methods across cities in different climatic zones. Urban Forestry Urban Green 11(4):351–363
Solecki W, Marcotullio PJ (2013) Climate change and urban forest vulnerability. In: Elmqvist T, Fragkias M, Goodness J, Güneralp B, Marcotullio PJ, McDonald RI, Parnell S, Schewenius M, Sendstad M, Seto KC, Wilkinson C (eds) Urbanization, biodiversity and ecosystem services: challenges and opportunities. Springer, Dordrecht, p 485–504
Teskey R, Wertin T, Bauweraerts I, Ameye M, McGuire MA, Steppe K (2015) Responses of tree species to heat waves and extreme heat events. Plant Cell Environ 38(9):1699–1712. https://doi.org/10.1111/pce.12417
Toronto and Region Conservation Authority (2011a) Peel region urban forest strategy. Toronto and Region Conservation Authority, Mississauga, Ontario. http://www.mississauga.ca/file/COM/2012eacagendapart2_june5.pdf. Accessed 7 Apr 2019
Toronto and Region Conservation Authority (2011b) City of Mississauga urban forest study. Toronto and Region Conservation Authority, Mississauga, Ontario. http://www.mississauga.ca/portal/home. Accessed 7 Apr 2019
USDA (2017) The PLANTS Database. Greensboro, NC: USDA, National Plant Data Team. 2. http://plants.usda.gov. Accessed 7 Apr 2019
Vander Vecht J, Conway TM (2015) Comparing species composition and planting trends: exploring pest vulnerability in Toronto’s urban forest. Arboriculture Urban Forestry 41(1):24–37
Warren K (2014) Urban trees, climate change, nursery availability. Morton Arboretum, Lisle, IL. https://www.youtube.com/watch?v=I9bWTQRdGAg. Accessed 7 Apr 2019
Wilby RL, Perry GLW (2006) Climate change, biodiversity and the urban environment: a critical review based on London, UK. Prog Phys Geogr 30(1):73–98. https://doi.org/10.1191/0309133306pp470ra
Woods A, Coates KD, Hamann A (2005) Is an unprecedented Dothistroma needle blight epidemic related to climate change? BioScience 55(9):761. https://doi.org/10.1641/0006-3568(2005)055[0761:IAUDNB]2.0.CO;2
Yang J (2009) Assessing the impact of climate change on urban tree species selection: a case study in Philadelphia. J Forestry 107(7):364–372
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We would like to thank the interview participants. Funding was provided by the Canadian Social Science and Humanities Research Council.
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Khan, T., Conway, T.M. Vulnerability of Common Urban Forest Species to Projected Climate Change and Practitioners Perceptions and Responses. Environmental Management 65, 534–547 (2020). https://doi.org/10.1007/s00267-020-01270-z
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DOI: https://doi.org/10.1007/s00267-020-01270-z