Eastern Pennsylvania Phenology Project

A Citizen Science Program

What is phenology?

Phenology is the observation of seasonal changes. This includes the blooming of flowers, the appearance of migratory birds, the hatching of insects, the animals coming out of hibernation.

Why is phenology important?

Phenological events are very sensitive to changes in our environment, including climate change. By monitoring key species (listed on this page), we can observe the impact that environmental change has on our natural resources.

What is the Eastern Pennsylvania Phenology Project?

The Eastern PA Phenology Project encourages the public to become citizen scientists by getting outside, observing nature, and sharing their observations with us. By collecting as much data as possible over a series of years, we can better understand the effects of environmental changes, such as climate change, on Pennsylvania’s plants and animals.

What is a citizen science project?

It is a project in which members of the public partner with scientists to collect data, answer questions, and solve problems together.

How can you help?

You can participate by recording and reporting observations of the species listed on this page.

While the project will mainly monitor a list of key species of plants, insects, mammals, birds, amphibians, reptiles, and fish, any and all phenological data are welcome and appreciated.

Data and photographs can be submitted to the project email address – phenology@lgnc.org. Please include the date and species observed on all of your entries.

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About the Project

The Eastern PA Phenology Project was initiated in 2010 as a project supported through the Audubon TogetherGreen Fellows Program (funded by Toyota) and administered through the Lehigh Gap Nature Center. Additional support and funding has been obtained from Moravian College, the PA Department of Environmental Protection – Environmental Education Grants Program, and the Lehigh Valley Greenways Conservation Landscape Initiative (funded by a grant from the PA Department on Conservation and Natural Resources, Bureau of Recreation and Conservation, Environmental Stewardship Fund, administered by Delaware & Lehigh National Heritage Corridor, Inc.). We are grateful to the many contributing partners involved.

Complete List of Target Species

To learn more about any of the species, click on the names to view fact sheets.

Other important data:

  • The date of the first and last frost
  • Weather data
  • The date of the first and last ice on ponds and lakes
  • The date when vernal pools dry up