More than 3,000 species of plants, animals, fungi, lichen, and moss visit or reside in the Concord area, with tremendous species diversity in Walden Woods, Minute Man National Historical Park, Great Meadows National Wildlife Refuge, Estabrook Woods, Lincoln, Southern Carlisle, and other natural areas. What are these species? Find out by joining the Great Walden BioBlitz on Saturday, July 6, 2019 and follow the project on the app, iNaturalist.  

Walden Pond in Summer

The bioblitz brings together educators, scientists, naturalists, and the public to encourage outdoor exploration and enhance our understanding of biodiversity. The Great Walden BioBlitz will focus on locating, identifying, and counting as many species as possible within a five-mile radius of Walden Pond. Participants will gain skills in identifying and recording species, and a stronger connection to their natural environment.  Children are warmly welcome to help in the fun!

Bioblitz Leaders

 Local naturalist Peter Alden explains, “On July 6th, 2019 a hundred or so invited specialist field biologists will be out in small parties locating their animal or plant focus. Some will join a half dozen free open to the public nature walks with naturalists using the new iNaturalist photo app. We are interested in documenting any major decline in some insect groups, and discovering newly arrived species whether invasive aliens or a climate change indicator. Walks will take place both morning and afternoon in such places as Walden Woods, The Minute Man National Historical Park, the Walden Pond State Reservation, and Land Conservation properties in Concord, Carlisle, and Lincoln.” 

Garter Snake

| Photo by Dave Witherbee

Dr. Edward O. Wilson and naturalist Peter Alden initiated the bioblitz concept on July 4, 1998 at Walden Pond. In partnership with the Walden Woods Project, they repeated the event with more than 100 invited  experts in 2009, and collectively recorded over 2,700 species within a five-mile radius of Walden Pond.  

 To celebrate Dr. Edward O. Wilson’s 90th birthday, and in recognition of his extraordinary leadership in protecting our planet’s biodiversity, the Walden Woods Project, the E.O. Wilson Biodiversity Foundation, and the Minuteman National Historical Park are co-hosting the Great Walden Bioblitz this July. 

Green Frog with Eggs

| Photo by Dave Witherbee

“The main purpose of the Great Walden Bioblitz is to celebrate all visible life forms and enjoy the company of serious (and fun-loving) field biologists of all stripes from around the Northeast,” added Peter Alden. “We attract experts in mammals, birds, reptiles & amphibians, fishes, ants, bees, beetles, butterflies, flies, spiders and other freshwater and land invertebrates. Botanists will identify trees, shrubs, wildflowers, invasive plants, grasses, sedges, ferns and allies, mosses, lichens, slime molds and all manner of fungi (mushrooms). We expect that the public iNaturalist parties will add dozens of insects, the odd mammal, turtle, snake or frog, unusual plants or fungi missed by the specialist parties in over 50 square miles of land. After the event we will have some experts look over and confirm submitted photos and perhaps add to our list.”

“In light of recent reports that biodiversity is declining globally at rates unprecedented in human history, it is incumbent that we become more actively engaged in understanding the flora and fauna that surround us,” said Kathi Anderson, Executive Director of the Walden Woods Project. “What better way to honor the life work of Dr. Edward O. Wilson than to join him in the effort to protect the planet’s biodiversity.” 

Participants of all ages are invited to join this fascinating day of events. Learn more at www.waldenbioblitz.org.