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University of California Press

About the Book

One of Smithsonian Magazine's Favorite Books of 2022

With wildlife thriving in cities, we have the opportunity to create vibrant urban ecosystems that serve both people and animals.

The Accidental Ecosystem tells the story of how cities across the United States went from having little wildlife to filling, dramatically and unexpectedly, with wild creatures. Today, many of these cities have more large and charismatic wild animals living in them than at any time in at least the past 150 years. Why have so many cities—the most artificial and human-dominated of all Earth’s ecosystems—grown rich with wildlife, even as wildlife has declined in most of the rest of the world? And what does this paradox mean for people, wildlife, and nature on our increasingly urban planet?
 
The Accidental Ecosystem is the first book to explain this phenomenon from a deep historical perspective, and its focus includes a broad range of species and cities. Cities covered include New York City, Los Angeles, San Francisco, Pittsburgh, Austin, Miami, Chicago, Seattle, San Diego, Atlanta, Philadelphia, and Baltimore. Digging into the natural history of cities and unpacking our conception of what it means to be wild, this book provides fascinating context for why animals are thriving more in cities than outside of them. Author Peter S. Alagona argues that the proliferation of animals in cities is largely the unintended result of human decisions that were made for reasons having little to do with the wild creatures themselves. Considering what it means to live in diverse, multispecies communities and exploring how human and nonhuman members of communities might thrive together, Alagona goes beyond the tension between those who embrace the surge in urban wildlife and those who think of animals as invasive or as public safety hazards. The Accidental Ecosystem calls on readers to reimagine interspecies coexistence in shared habitats, as well as policies that are based on just, humane, and sustainable approaches.

About the Author

Peter S. Alagona is an environmental historian, conservation scientist, and nature-culture geographer. He is Professor of Environmental Studies at the University of California, Santa Barbara.

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Table of Contents

Preface
Acknowledgments

Introduction: Where the Wild Things Are, Now 
1: Hot Spots
2: The Urban Barnyard
3: Nurturing Nature
4: Bambi Boom
5: Room to Roam
6: Out of the Shadows
7: Close Encounters
8: Home to Roost
9: Hide and Seek 
10: Creature Discomforts
11: Catch and Release
12: Damage Control
13: Fast-Forward
14: Embracing the Urban Wild
Coda: Lost and Found

Notes
Selected Bibliography
Index

Reviews

"Historian Alagona skillfully demonstrates how America’s cities have become ‘weird wildlife refuges,’ in this hopeful account. He sets the stage by describing animal life in cities in times past: many metropolises were founded on sites of biological richness, but as cities grew, wildlife populations declined. But in the past few decades, that’s changed, and cities have become places with rich ecosystems that have fostered an ‘explosion of wildlife’. . . . Alagona argues that people must learn to live with wildlife."

Publishers Weekly
“Alagona shows that wildlife in urban areas can be a blessing, a curse, or both. Ultimately, he sees a golden opportunity to redefine our relationship with wildlife and perhaps with each other as we share urban ecosystems.”
Natural Resource Management Today
"Highly readable and relevant."
Forbes
"This book is equal parts history and science lessons, both of which are delivered in an accessible and engaging manner."
The Quarterly Review of Biology
"A marvelous history of the present. . . . an eminently teachable book."
California History

"The Accidental Ecosystem by Peter Alagona, explains why urban neighborhoods like yours and mine, are being slowly repopulated by wild animals. Repopulation is the key, because the locations of early cities were originally chosen for their access to water, forests, and surrounding agricultural resources."

Triangle Gardener
"The Accidental Ecosystem is carefully researched, well-structured, replete with compelling case studies, and thought-provoking; in short, it is a dazzling piece of contemporary environmental writing." 
 
Natural Resources & Environment

"The Accidental Ecosystem is a crystalline gem of a book with an original, engaging, and timely narrative that sparkles with wit and wisdom. This is environmental writing at its best."—Mark V. Barrow, Jr., author of Nature's Ghosts: Confronting Extinction from the Age of Jefferson to the Age of Ecology

"This book reveals the wildlife all around us in towns and cities. It explains why that wildlife is there (or never left), explores some of the pleasures and perils of living so close to other species, and helps us better the human relationship to ecology."—Eric W. Sanderson, author of Mannahatta: A Natural History of New York City 

"Strange as it may seem, cities rank among the fastest growing ecosystems on Earth. Even stranger, they've recently become home to an amazing array of wildlife: herds of sea lions; colonies of bats; packs of coyotes; and flocks of parrots, among others. The sudden arrival of such charismatic creatures has happened without much fanfare—until now. With The Accidental Ecosystem, Peter S. Alagona offers a marvelous, entertaining account of this great migration. He also delves into our tumultuous relationship with the more-than-human world, and explores pathways toward a future of coexistence and mutual thriving."—Scott D. Sampson, Executive Director of the California Academy of Sciences and author of How to Raise a Wild Child