Hubbard Brook Monthly - September 2019

HUBBARD BROOK MONTHLY September 2019 issue

Recent Publications

Contosta, AR, NJ Casson, S Garlick, SJ Nelson, MP Ayres, EA Burakowski, JL Campbell, I Creed, C Eimers, C Evans, I Fernandez, C Fuss, T Huntington, K Patel, R Sanders-DeMott, K Son, PM Templer, C Thornbrugh. 2019. Northern forest winters have lost cold, snowy conditions that are important for ecosystems and human communities. Ecological Applications.

Likens, GE. 2019. Unusual sequence of ice cover formation on Mirror Lake, New Hampshire, USA. Inland Waters

Lowe, WH, LK Swartz, BR Addis, and GE Likens. 2019. Hydrologic variability contributes to reduced survival through metamorphosis in a stream salamander. PNAS.

Ouimette, AP, SV Ollinger, LC Lepine, RB Stephens, RJ Rowe, MA Vadeboncoeur, SJ Tumber-Davila, EA Hobbie. 2019. Accounting for carbon flux to mycorrhizal fungal may resolve discrepancies in forest carbon budgets. Ecosystems.

If your publication is missing from this list, please let us know:

Hubbard Brook in the News

A Season of the (Warbler) Blues
Smithsonian Migratory Bird Center News

Rep. Ann McLane Kuster: Taking action to combat climate change
Concord Monitor

Outreach and Education Update

On September 26, Anthea, Ken Kinder (HB alum) and leaders from Northern Woodlands and SPNHF co-hosted a discussion about misconceptions related to forest health and ecosystem services. Participants included Matt Ayres, Biological Sciences, Dartmouth College; Jane Difley, Forest Society; Sally Manikian, The Conservation Fund; Charlie Niebling, Innovative Natural Resource Solutions, LLC; Rob Riley, Northern Forest Center; and Steve Roberge, Cheshire County Extension Forester.

On October 7, Anthea will be participating in an event entitled The Future of the Northern Forest in a Time of Change. The event is organized by the Second College Grant Management Team, in collaboration with the Office of the Provost and the Guarini School of Graduate and Advanced Studies at Dartmouth. Presenters include Congresswoman Ann Kuster, Matt Ayres, and Chris Woodall.

This summer, Sarah Thorne and Amey Bailey launched HBRF's Citizen Science Forest Monitoring Collaboration with Squam Lakes Conservation Society. They established three monitoring plots at Doublehead Preserve, Sandwich, NH, and are now training SLCS volunteers to collect the initial round of data.

Lindsey Rustad has been selected as one of 125 AAAS IF/THEN Ambassadors. The program seeks to further women in science, technology, engineering, and math by empowering current innovators and inspiring the next generation of pioneers. IF/THEN Ambassadors will share their stories and serve as high-profile role models for middle school girls. Read more:®-Ambassadors

New or Proposed Research

Dr. Sara Kaiser is returning to Hubbard Brook in a new role. Kaiser was a graduate student and postdoc at Hubbard Brook (2008-2014) studying how changes in food supply affect forest birds. She is now a Research Ecologist at the Lab of Ornithology at Cornell University where she teaches the Field Methods in Avian Ecology course and directs the Lab of Ornithology's new field-based, summer research and training program in avian biology for Cornell undergraduates at Hubbard Brook. Her goals are to 1) provide meaningful field-based experiences for undergraduates, 2) encourage students to develop original research on the birds of Hubbard Brook, and 3) demonstrate the value of long-term studies for understanding the impact of slow changes in the forest ecosystem on bird populations.

She is interested in new collaborations and integrating avian ecology research at Hubbard Brook with other ongoing projects (Contact:

Save the Date

The next Committee of Scientists meeting is scheduled to take place on October 30, 2019, at the Cary Institute of Ecosystem Studies in Millbrook, NY. The theme of the meeting will be "Integration of Hubbard Brook into the Region," co-led by Matt Vadeboncoeur and Steve Hamburg.


A new study, published in Science, finds that the number of birds in North America has declined by 29 percent since 1970.

Researchers have been tracking changes in bird populations at Hubbard Brook for 50-plus years. While the recent Science paper is continental in scope, the story looks somewhat different from our zoomed-in perspective within the White Mountain National Forest.

At Hubbard Brook, bird abundance is down from its peak in the early 1970s but the drop occurred largely due to changes in bird species composition associated with forest aging. Since the low point in the mid 1990s, some species have decreased and others have increased or stayed the same, with the overall number of birds actually rising slightly in recent years.

Taken together, the data from Hubbard Brook and those presented in Science suggest that bird populations may look healthy on a local scale even if they are declining on a larger scale. Major drivers of change at larger scales include habitat loss, pesticides, building collisions, and nonnative predators, while at the local scale—such as at Hubbard Brook—food abundance and vegetation structure are more important. 

The dramatic declines described in the Science study echo issues that Hubbard Brook scientists have highlighted in the past—that events happening during the breeding season, migration, and in the winter grounds can all have a significant impact on bird abundance. 

The Hubbard Brook team is actively in the process of analyzing a half century of data, and is eager to share new information and hypotheses as they emerge.

Nina Lany began her new position as Quantitative Ecologist with the Northern Research Station on September 30. Stationed in Durham, she will be making frequent trips to Hubbard Brook. Congratulations and welcome, Nina!

Thanks for reading!