Accessing Urban Nature Initiative
Philadelphia is full of wildlife. Deer slip through cemeteries at dusk, foxes raise pups in park thickets, and flying squirrels glide between tree trunks at night. Most residents never know. We’re here to change that, and to use what we learn to help the city plan better for the nature already living in it.

About the Project

What makes AUNI unique is its One Health approach, which recognizes the interconnected health of animals, people, and the environment. The initiative goes beyond simply cataloging species to investigate whether wildlife populations are thriving, how urban environments affect animal health, and how access to nature benefits human wellbeing. The data generated by AUNI helps to inform conservation strategies, urban planning, and public education efforts that support healthier ecosystems and more resilient cities.
AUNI connects people with the wildlife that share their neighborhoods. Through partnerships with schools, zoos, parks, nature centers, and other community organizations, the initiative fosters environmental stewardship, deepens curiosity about local biodiversity, and creates new educational opportunities and meaningful pathways for community engagement. As a partner of the Urban Wildlife Information Network (UWIN), AUNI is contributing to global solutions that enable both wildlife and human communities to thrive together.
Student Project: Wildlife in the City
Explore the student-led project that dives into preliminary data of the Accessing Urban Nature Initiative (AUNI).
About Us

Mission
AUNI leverages interdisciplinary research, a network of community partners, and monitoring technology to advance understanding of urban wildlife ecology in the Philadelphia region. By generating actionable knowledge about biodiversity, animal health, and human-wildlife interactions, AUNI supports evidence-based conservation and works alongside partners to translate findings into education, environmental stewardship, and community engagement.
Why This Matters
By 2050, nearly 70% of people will live in cities. As urban life becomes more disconnected from nature, public support for protecting nature is also declining. This is the challenge at the heart of global biodiversity policy. The historic Kunming-Montreal Global Biodiversity Framework supports the Sustainable Development Goals and sets an ambitious pathway to achieve the global vision of a world living in harmony with nature by 2050. Among the Framework’s key elements are 23 targets for 2030. Target 12 calls for enhancing urban green space “for human well-being and biodiversity” alike, recognizing that these goals are interdependent.
AUNI is built at that intersection. Our trail camera network across Philadelphia generates rigorous ecological data on urban wildlife and turns those data into direct encounters with nature for the communities living alongside it. When a student sees a coyote or flying squirrel photographed in their own schoolyard, conservation stops being abstract and becomes personal.
In 2025, the United Nations warned that the rapid loss of plant and animal species worldwide has reached crisis levels. Cities, with their parks, green corridors, and overlooked wild spaces, have an important role to play in turning that around — but only if we understand what’s living in them.
Decisions about where to plant trees, preserve open land, or create wildlife corridors are made every day in cities like Philadelphia — often without data about the animals those decisions affect. Our research helps fill that gap.
Long-term, standardized wildlife data gives planners and policymakers the evidence they need to make the case for urban nature. And, as cities like Chicago have shown, these data can directly shape city-wide policy.
Project Team
This initiative was developed by Penn Vet’s Wildlife Futures Program and Shelter Medicine and Community Engagement. Support to launch this project came from the University of Pennsylvania’s inaugural Draw Down the Lightening program out of the Office of the President.

Project PI
Julie C. Ellis, PhD
Adjunct Associate Professor of Pathobiology
Support Us
If you would like to support the work we do here please utilize our giving website. We look forward to hearing from you!
Find Us
University of Pennsylvania
School of Veterinary Medicine
3800 Spruce Street
Philadelphia, PA 19104

Foxes, Coyotes and Deer – Oh My! Penn Vet’s AUNI Wants You to Meet Your Neighbors
Images of some of the city’s least seen, but most remarkable residents were the headliners at the recent first summit meeting of Penn Vet’s Accessing Urban Nature Initiative (AUNI). The…

A New Penn Vet Study is Finding Where the Wild Things Are: Right Here in Philly!
A new project, the Accessing Urban Nature Initiative (AUNI), has started capturing images of seldom seen but decidedly special city dwellers like these – and many others – with the…
More News
- Penn Vet Launches Project Mapping Animal Life in Philadelphia, Philadelphia Today, October 21, 2025.
- Uncovering the Secret World of Philly’s Wildlife, NBC10, October 15, 2025.
- New Penn Vet Initiative Aims to Document Animal Life, Movement Across Philadelphia, The Daily Pennsylvanian, October 14, 2025.
- Penn Project Seeks to Get to Know the Wildlife that ‘Shares our Cities with Us’, Philly Voice, October 10, 2025.
AUNI Partners
- Briar Bush Nature Center (Montgomery County)
- Cobbs Creek Community Environmental Education Center
- The Discovery Center
- Elmwood Park Zoo (Montgomery County)
- Fairmount Park Conservancy
- Friends of the Wissahickon
- James G. Kaskey Memorial Park (University of Pennsylvania campus)
- Laurel Hill
- Morris Arboretum & Gardens
- Pennypack Park
- Philadelphia Parks & Recreation
- Philadelphia Zoo
- The Schuylkill Center for Environmental Education
- Tookany/Tacony-Frankford Watershed
- W.B. Saul High School of Agricultural Sciences