• Lush vegetation on the top of Spectacle Island's North drumlin dominates the foreground. Boston's skyline can be seen in the distance. The park's logo with tag line minutes away, worlds apart empashises the stark contrast between the city and islands.

    Boston Harbor Islands

    National Recreation Area Massachusetts

Phenology

Monarch butterfly on Lovells Island

Pearl Lang

Monarch butterfly on Lovells Island.

Understanding Phenology
For thousands of years, people have followed the rhythm of nature's cycles to inform and enrich their lives. Lengthening days, spring flowers, waves of insects, exploding seeds, turning leaves, and migrating birds were all signals to plant, forage, move, harvest, hunt, or celebrate. Today, scientists call the biological events that mark seasonal transitions "phenological events."  Phenology is the study of the causes and consequences of the timing of biological phases.

 
Volunteers learn what to look for and how to record observations.

Aya Rothwell

Volunteers learn how to record observations for an ongoing phenological study.

Get Involved
At the Boston Harbor Islands volunteers are working with scientists to record observations of native plant and animal species over time. Over many years, these observations will help us understand how climate change affects the islands. As a volunteer, you will register a site, learn about several indicator plants and animals and their phenophases, make observations on multiple visits, and record them on "Nature's Notebook" online.

If you are interested in volunteering to help with the Phenology study, please register for a program on Stewardship Saturdays.

Did You Know?

Soldiers Pose at Fort Warren

Georges Island is home to Fort Warren, which was used as a prison during the Civil War.  The fort’s most famous prisoner was the Vice President of the Confederacy, Alexander Stephens.  Daily tours of this famous fort are offered from May to October. More...