Colleen Murphy-Dunning | Yale University (original) (raw)

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Papers by Colleen Murphy-Dunning

Research paper thumbnail of Ecological Dominance by Paratrechina longicornis (Hymenoptera: Formicidae), an Invasive Tramp Ant, in Biosphere 2

The Florida Entomologist, 1999

Research paper thumbnail of Do Trees Cool the Same Every Summer's Day? Temporal Non-Stationarity in Urban Environments from Bike-Based Air Temperature Monitoring in New Haven, Ct

Research paper thumbnail of Leveraging Community Support to De-vine New Haven’s Natural Areas

Cities and the Environment

Research paper thumbnail of Contextual Considerations of Green Stormwater Infrastructure Siting

Cities and the Environment, 2021

Research paper thumbnail of Urban Resources Initiative: A University Model for Clinical Urban Forestry Education

Arboriculture & Urban Forestry

As urban land cover increases around the globe, it is increasingly important to train competent u... more As urban land cover increases around the globe, it is increasingly important to train competent urban forestry professionals for the future. Urban Resources Initiative (URI), a program of the Yale School of Forestry and Environmental Studies and an affiliated New Haven-based nonprofit, has provided field experience and learning opportunities for professional graduate students in urban and community forestry for over 25 years. URI’s clinical training programs are uniquely designed to equip students with both technical skills and social competencies. They do this by working with local residents, municipal staff, and community leaders to promote community-based land and tree stewardship, restore neglected open spaces, and build social cohesion in urban neighborhoods. We used a mixed-method approach, which included semi-structured interviews with current and past URI interns as well as an online survey, to determine long-term impacts and learning outcomes from URI’s clinical training pr...

Research paper thumbnail of Why Opt-in to a Planting Program? Long-term Residents Value Street Tree Aesthetics

Arboriculture & Urban Forestry

Many cities are making substantial capital investments in urban tree planting. Residents play act... more Many cities are making substantial capital investments in urban tree planting. Residents play active and diverse roles in enhancing and protecting the urban forest, and are therefore critical to many municipal-level policy objectives. The way residents perceive and value the urban forest can have implications for achieving urban forestry goals through residents and volunteers. However, urban residents are not a monolithic block or homogenous category; instead, they have diverse opinions, needs, and constraints. Moreover, relatively little is known about how residents hear about available resources, such as free trees, and decide to ‘opt-in’ to tree planting initiatives, choosing to plant and maintain trees on or near their properties. The focus of this study was to address three questions about participation in a request-driven program that provides free street trees to residents of New Haven, Connecticut, U.S.: 1) Who requests trees through this program? 2) How did the requesters h...

Research paper thumbnail of Did community greening reduce crime? Evidence from New Haven, CT, 1996–2007

Landscape and Urban Planning, 2017

Research paper thumbnail of Research note: Greater tree canopy cover is associated with lower rates of both violent and property crime in New Haven, CT

Landscape and Urban Planning, 2015

Research paper thumbnail of Stewardship success: How community group dynamics affect urban street tree survival and growth

Research paper thumbnail of From front yards to street corners: revitalizing neighborhoods through community-based land stewardship

Research paper thumbnail of Relationships between bole and crown size for young urban trees in the northeastern USA

Urban Forestry & Urban Greening

Knowledge of allometric equations can enable urban forest managers to meet desired economic, soci... more Knowledge of allometric equations can enable urban forest managers to meet desired economic, social, and ecological goals. However, there remains limited regional data on young tree growth within the urban landscape. The objective of this study is to address this research gap and examine interactions between age, bole size and crown dimensions of young urban trees in New Haven, CT, USA to identify allometric relationships and generate predictive growth equations useful for the region. This study examines the 10 most common species from a census of 1474 community planted trees (ages 4–16). Regressions were applied to relate diameter at breast height (dbh), age (years since transplanting), tree height, crown diameter and crown volume. Across all ten species each allometric relationship was statistically (p < 0.001) significant at an α-level of 0.05. Consistently, shade trees demonstrated stronger relationships than ornamental trees. Crown diameter and dbh displayed the strongest fi...

Research paper thumbnail of Ecological Dominance by Paratrechina longicornis (Hymenoptera: Formicidae), an Invasive Tramp Ant, in Biosphere 2

The Florida Entomologist, 1999

Research paper thumbnail of Do Trees Cool the Same Every Summer's Day? Temporal Non-Stationarity in Urban Environments from Bike-Based Air Temperature Monitoring in New Haven, Ct

Research paper thumbnail of Leveraging Community Support to De-vine New Haven’s Natural Areas

Cities and the Environment

Research paper thumbnail of Contextual Considerations of Green Stormwater Infrastructure Siting

Cities and the Environment, 2021

Research paper thumbnail of Urban Resources Initiative: A University Model for Clinical Urban Forestry Education

Arboriculture & Urban Forestry

As urban land cover increases around the globe, it is increasingly important to train competent u... more As urban land cover increases around the globe, it is increasingly important to train competent urban forestry professionals for the future. Urban Resources Initiative (URI), a program of the Yale School of Forestry and Environmental Studies and an affiliated New Haven-based nonprofit, has provided field experience and learning opportunities for professional graduate students in urban and community forestry for over 25 years. URI’s clinical training programs are uniquely designed to equip students with both technical skills and social competencies. They do this by working with local residents, municipal staff, and community leaders to promote community-based land and tree stewardship, restore neglected open spaces, and build social cohesion in urban neighborhoods. We used a mixed-method approach, which included semi-structured interviews with current and past URI interns as well as an online survey, to determine long-term impacts and learning outcomes from URI’s clinical training pr...

Research paper thumbnail of Why Opt-in to a Planting Program? Long-term Residents Value Street Tree Aesthetics

Arboriculture & Urban Forestry

Many cities are making substantial capital investments in urban tree planting. Residents play act... more Many cities are making substantial capital investments in urban tree planting. Residents play active and diverse roles in enhancing and protecting the urban forest, and are therefore critical to many municipal-level policy objectives. The way residents perceive and value the urban forest can have implications for achieving urban forestry goals through residents and volunteers. However, urban residents are not a monolithic block or homogenous category; instead, they have diverse opinions, needs, and constraints. Moreover, relatively little is known about how residents hear about available resources, such as free trees, and decide to ‘opt-in’ to tree planting initiatives, choosing to plant and maintain trees on or near their properties. The focus of this study was to address three questions about participation in a request-driven program that provides free street trees to residents of New Haven, Connecticut, U.S.: 1) Who requests trees through this program? 2) How did the requesters h...

Research paper thumbnail of Did community greening reduce crime? Evidence from New Haven, CT, 1996–2007

Landscape and Urban Planning, 2017

Research paper thumbnail of Research note: Greater tree canopy cover is associated with lower rates of both violent and property crime in New Haven, CT

Landscape and Urban Planning, 2015

Research paper thumbnail of Stewardship success: How community group dynamics affect urban street tree survival and growth

Research paper thumbnail of From front yards to street corners: revitalizing neighborhoods through community-based land stewardship

Research paper thumbnail of Relationships between bole and crown size for young urban trees in the northeastern USA

Urban Forestry & Urban Greening

Knowledge of allometric equations can enable urban forest managers to meet desired economic, soci... more Knowledge of allometric equations can enable urban forest managers to meet desired economic, social, and ecological goals. However, there remains limited regional data on young tree growth within the urban landscape. The objective of this study is to address this research gap and examine interactions between age, bole size and crown dimensions of young urban trees in New Haven, CT, USA to identify allometric relationships and generate predictive growth equations useful for the region. This study examines the 10 most common species from a census of 1474 community planted trees (ages 4–16). Regressions were applied to relate diameter at breast height (dbh), age (years since transplanting), tree height, crown diameter and crown volume. Across all ten species each allometric relationship was statistically (p < 0.001) significant at an α-level of 0.05. Consistently, shade trees demonstrated stronger relationships than ornamental trees. Crown diameter and dbh displayed the strongest fi...