TREE News

Over 15,000 small mammals have been captured and recaptured at Holt Research Forest using live-trapping methods to investigate long-term wildlife dynamics.

2025 was Maine TREE’s most successful programming year to date, and before we dive into the new year, we’re taking a moment to reflect on all that we accomplished over the last year. Our staff hosted, spoke at, or attended over 80 events this year. We provided nearly a dozen students and recent graduates with early-career opportunities and engaged over 1,000 students in forest-based education programs.  From Kittery to Fort Kent, and Calais to Rangeley, in 2025, our forest-ba

Maine TREE staff and colleagues held the 2025 field season kickoff event on Thursday, June 5, 2025! In the morning, Maine TREE staff gathered to welcome and mingle with the newest 2025 research staff, including field crews and interns. In the afternoon, attendees and volunteers split up to tackle exciting projects throughout the Holt Research Forest property, including invasive plant removal and wood stacking.

Are there any connections between the salamander populations in our forest and the trees? Are there certain forest conditions that are more suitable for salamanders? Do sites with more downed trees have a higher abundance of these amphibians?

Since 1986, we have conducted a timber inventory at the Holt Research Forest (HRF) every few years. During these surveys, we mark trees and

Since the summer of 1986, we have conducted annual tree seedling counts at the Holt Research Forest (HRF). This yearly count allows us to un

Did you know that tree seeds have been collected annually at Holt Research Forest since 1983?

Sci-Comm: An Introduction to Holt Research Forest Data is a scientific communication series exploring the research and data produced at HRF

The 2024 field season was filled with successes at Holt Research Forest! Below is a summary of the various activities and accomplishments fr