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Dr. Timon McPhearson

Urban Community Ecologist | PhD, Rutgers University

Expertise
urban ecology, resilience, social-ecological systems

External site: urbansystemslab.com

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  • Profile
  • Publications

Dr. McPhearson's research examines cities as ecosystems to study social, ecological, and technical interactions to understand urban system dynamics. He utilizes both empirical (e.g. Big Data, field experiments) and theoretical approaches (social-ecological systems and resilience theory) with a focus on the role of urban green infrastructure for advancing equity, climate change resilience, and urban sustainability.

Current Research

Comparative urban ecology

Cities are unique, but many also have similar attributes, patterns, and ecological processes. By comparing research on the ecology in and of cities across the US, Europe, and South America, this research seeks to advance a generalized understanding of the similarities and differences among cities that drive major urban social and ecological patterns. By examining the social, ecological, and technical-infrastructural system (SETS) interactions using existing "big data" across a network of cities, researchers are advancing urban ecology as an urban systems science.

Urban ecosystem services

Ecosystems in cities provide a host of benefits to urban residents ranging from cooling hot cities (especially in summer) through evapotranspiration and shading, stormwater absorption, carbon storage, recreation, and providing habitat for urban adapted species. However, the relationship between biodiversity, ecosystem function, and such "ecosystem services" have not been well studied in urban areas. This research examines relationships between ecosystem function and services to better understand the spatial variation in public access to these services and how improving our ecological knowledge can advance urban planning and management of urban natural areas.

Ecosystem-based climate adaptation and urban resilience

Cities are hotspots for impacts of climate change. Ecosystems in cities and urban regions offer a suite of potential solutions for climate change adaptation, disaster risk reduction, and urban resilience building. Through cellular automata scenario modeling, machine learning, and "big data" researchers are examining how urban ecosystems can provide novel opportunities for reducing risk and vulnerability to heat and flooding for the most vulnerable urban residents. Additionally, by linking urban biodiversity data with functional traits this work is advancing new urban ecological resilience indicators for assessing current levels of ecosystem resilience.

Urban forest dynamics

Through multi-year ecological experiments in urban forests, this research examines the short- and long-term impacts of urban tree planting and management strategy on biodiversity, ecosystem structure, and functioning. Research includes examining soil nutrients, heavy metals, and carbon dynamics over time together with extensive vegetation monitoring to evaluate best management strategies for maximizing carbon uptake and storage, invasive species control, and forest canopy closure in complex urban biological systems.

Conceptual frameworks facilitate integration for transdisciplinary urban science
Zhou, Weiqi, Steward T. A. Pickett, and Timon McPhearson. 2021. “Conceptual Frameworks Facilitate Integration for Transdisciplinary Urban Science”. Npj Urban Sustainability 1 (1). Springer Science and Business Media LLC. doi:10.1038/s42949-020-00011-9.
Urbanization in and for the Anthropocene
Elmqvist, T., E. Andersson, Timon McPhearson, X. Bai, L. Bettencourt, E. Brondizio, J. Colding, et al. 2021. “Urbanization in and for the Anthropocene”. Npj Urban Sustainability 1 (1). Springer Science and Business Media LLC. doi:10.1038/s42949-021-00018-w.
Bridge over troubled water: managing compatibility and conflict among thought collectives in sustainability science
Soininen, Niko, Christopher M. Raymond, Hanna Tuomisto, Laura Ruotsalainen, Henrik Thorén, Andra-Ioana Horcea-Milcu, Milutin Stojanovic, et al. 2021. “Bridge over Troubled Water: Managing Compatibility and Conflict Among Thought Collectives in Sustainability Science”. Sustainability Science 17 (1). Springer Science and Business Media LLC: 27-44. doi:10.1007/s11625-021-01068-w.
Urban sustainability science: prospects for innovations through a system’s perspective, relational and transformations’ approaches
Frantzeskaki, Niki, Timon McPhearson, and Nadja Kabisch. 2021. “Urban Sustainability Science: Prospects for Innovations through a system’s Perspective, Relational and transformations’ Approaches”. Ambio. Springer Science and Business Media LLC. doi:10.1007/s13280-021-01521-1.
Soil carbon sequestration in urban afforestation sites in New York City
Downey, Alisen E., Peter M. Groffman, Gisselle A. Mejía, Elizabeth M. Cook, Sanpisa Sritrairat, Richard Karty, Matthew I. Palmer, and Timon McPhearson. 2021. “Soil Carbon Sequestration in Urban Afforestation Sites in New York City”. Urban Forestry & Urban Greening 65. Elsevier BV: 127342. doi:10.1016/j.ufug.2021.127342.
The Value of Urban Flood Modeling
Rosenzweig, B. R., P. Herreros, Y. Kim, A. Cohn, K. Grove, J. Brock, J. Yesuf, et al. 2021. “The Value of Urban Flood Modeling”. Earth’s Future 9 (1). American Geophysical Union (AGU). doi:10.1029/2020ef001739.
Urban sustainability science: prospects for innovations through a system’s perspective, relational and transformations’ approaches
Frantzeskaki, Niki, Timon McPhearson, and Nadja Kabisch. 2021. “Urban Sustainability Science: Prospects for Innovations through a system’s Perspective, Relational and transformations’ Approaches”. Ambio. Springer Science and Business Media LLC. doi:10.1007/s13280-021-01521-1.
Assessment of urban flood vulnerability using the social-ecological-technological systems framework in six US cities
Chang, Heejun, Arun Pallathadka, Jason Sauer, Nancy B. Grimm, Rae Zimmerman, Chingwen Cheng, David M. Iwaniec, et al. 2021. “Assessment of Urban Flood Vulnerability Using the Social-Ecological-Technological Systems Framework in Six US Cities”. Sustainable Cities and Society 68. Elsevier BV: 102786. doi:10.1016/j.scs.2021.102786.
Urban tree canopy has greater cooling effects in socially vulnerable communities in the US
Zhou, Weiqi, GL Huang, Steward T. A. Pickett, J Wang, Mary L. Cadenasso, Timon McPhearson, JM Grove, and J Wang. 2021. “Urban Tree Canopy Has Greater Cooling Effects in Socially Vulnerable Communities in the US”. ONE EARTH 4 (12): 1764-75. doi:10.1016/j.oneear.2021.11.010.
Using green to cool the grey: Modelling the cooling effect of green spaces with a high spatial resolution
Grilo, Filipa, Pedro Pinho, Cristiana Aleixo, Cristina Catita, Patrícia Silva, Nuno Lopes, Catarina Freitas, Margarida Santos-Reis, Timon McPhearson, and Cristina Branquinho. 2020. “Using Green to Cool the Grey: Modelling the Cooling Effect of Green Spaces With a High Spatial Resolution”. Science of The Total Environment 724. Elsevier BV: 138182. doi:10.1016/j.scitotenv.2020.138182.