Signs of the Seasons: A New England Phenology Program

Though the days are still warm, the nights are starting to cool down — and migrating creatures of all kinds are beginning to take notice. Discover more about behavior changes in a variety of animals, including Monarch Butterflies and Ruby Throated Hummingbirds and learn how you can help track their migration by visiting the Journey North […]

Increasing Scientific Understanding of Seasonal Variation in Plants and Animals Nature’s Notebook is a national, online program where amateur and professional naturalists regularly record observations of plants and animals to generate long-term data sets used for scientific discovery and decision-making. Read more about Nature’s Notebook and the National Phenology Network’s successes as described by the White […]

This spring we produced 22% more maple syrup — and it’s all because of spring weather and temperatures! Read this great, short Bangor Daily News article about the season and how we compare to other Northeast states’ production.

Two winters ago, we had heaps of snow. This past winter, we wore short sleeves in December, and watched in amazement as the garden confusedly attempted to grow months in advance of the regular season. So what’s going on with the weather in Maine? And what does it mean for managing our national park and other […]

Ascophyllum nodosum — more commonly known as rockweed — is an intertidal seaweed that grows along our rocky Maine coast. This innocuous-looking brown alga serves as habitat and food for more than one hundred species of fish, crustaceans, and birds. It is also harvested for human food, fertilizer, and other value-added products. Currently, rockweed harvest is a […]

Loons spend the winter on the ocean, but in April, they start returning to our lakes. Why do they make the journey? To raise chicks, of course! Have you spotted any recently returned loons on your lake? Find out more about the loons’ annual migration in this short and informative article.

Sunday March 20th marked the Spring Equinox for us here in the northern hemisphere. Calendars announced the start of spring that day, but Mainers know March still requires mittens and wood stoves. So how do we figure out when the winter season ends and a different one begins? Is it a date, a specific temperature, […]

The National Cherry Blossom Festival is annual event in Washington, D.C. that celebrates the beautiful unfurling of pink and white petals on thousands of trees across our nation’s capital. But unlike other annual events, the timing of the festival is highly dependent on winter weather and temperature, making it hard to predict peak bloom. This […]

To see the new National Phenology Network maps showing how Spring is happening across the US, visit Gridded Spring Indices on the NPN website.

Henry David Thoreau’s 160-year-old field notes document the changing life in the woods, as a warming climate jumbles the timing of annual springtime schedules. Richard B. Primack, Amanda S. Gallinat The leafing out of trees in the spring is one of the most dramatic events of the year in temperate regions of the world—whether New […]