Ed. note: Sandy Wolkenberg is a Citizen Scientist who has been working in the Thain Family Forest for three and a half years. Over the course of a week on Plant Talk, Sandy will share a five-part series of posts on The New York Botanical Garden’s Citizen Scientist Tree Phenology Program. If Sandy’s experiences motivate you to want to know more about becoming a Citizen Scientist, check out the Garden’s Volunteer Program page.

The tree is more than first a seed, then a stem, then a living trunk, and then dead timber.
The tree is a slow, enduring force straining to win the sky.

~ Antoine de Saint-Exupéry, The Wisdom of the Sands, (translated from French by Stuart Gilbe.)

Following a major wind storm in the spring of 2010, the volunteers that make up the Citizen Scientist Tree Phenology program walked the trails of the Thain Family Forest scrutinizing each tree. We were mystified by the fact that Tuliptree #93, a giant tulip poplar, appeared to have vanished. We walked back and forth searching for the tree, and then searched again. Where could it be? We noticed a huge root ball attached to a large upended tree that had fallen back into the Forest. We speculated that this fallen giant must be Tuliptree #93. Our suspicion was confirmed during a walk with Jessica Arcate Schuler, Manager of the Thain Family Forest, when she found tag #93 on the reclining giant.  Alas, our first–but not our last–loss.

The circle of life comes full-circle in the Forest.

Ed. note: Sandy Wolkenberg is a Citizen Scientist who has been working in the Thain Family Forest for three and a half years. Over the course of a week on Plant Talk, Sandy will share a five-part series of posts on The New York Botanical Garden’s Citizen Scientist Tree Phenology Program. If Sandy’s experiences motivate you to want to know more about becoming a Citizen Scientist, check out the Garden’s Volunteer Program page.

In the fall of 2008, at the beginning of the Citizen Science Tree Phenology program, the Volunteer Office encouraged those of us participating to find partners to work with. Because of my variable schedule at the Garden, I ended up walking the Spicebush Trail in the Thain Family Forest by myself. These walks often occurred in the early morning when intense sun glare or mist made identification of phenological phases difficult. In retrospect, although I treasured those quiet phenology walks, I had so little history with the program and so very many questions about what I was seeing, or hoped I was seeing, or imagined that I was seeing, that the prospect of walking with other volunteers was compelling. So it was a fortunate time when, in the spring of 2008, phenologists received the following email from Volunteer Services:

The Citizen Scientists band together below.

Ed. note: Sandy Wolkenberg is a Citizen Scientist who has been working in the Thain Family Forest for three and a half years. Over the course of a week on Plant Talk, Sandy will share a five-part series of posts on The New York Botanical Garden’s Citizen Scientist Tree Phenology Program. If Sandy’s experiences motivate you to want to know more about becoming a Citizen Scientist, check out the Garden’s Volunteer Program page.

Now, imagine that it is early to mid-March, the beginning of the spring season. Citizen Scientists excitedly descend upon the Thain Family Forest! We scan the designated trees looking for “emerging leaves.” Protocols describe ”emerging leaves” as follows: ”In at least 3 locations on the plant, an emerging leaf is visible. A leaf is considered emerging once the green tip is visible at the end of the leaf bud, but before it has fully unfolded to expose the leaf stalk (petiole) or leaf base.”

Aching necks and high fives! Learn more about the joys of phenology below.

Ed. note: Sandy Wolkenberg is a Citizen Scientist who has been working in the Thain Family Forest for three and a half years. Over the course of a week on Plant Talk, Sandy will share a five-part series of posts on The New York Botanical Garden’s Citizen Scientist Tree Phenology Program. If Sandy’s experiences motivate you to want to know more about becoming a Citizen Scientist, check out the Garden’s Volunteer Program page.

As volunteer phenologists, we are tasked with observing and entering data on ten different trees in the Thain Family Forest, usually two or three trees on each of the three Forest trails: The Spicebush, Ridge, and Bridge Trails. We monitor these trees weekly for three seasons, winter being the exception. It was all very new and a little intimidating. Sometimes even finding the trees can be daunting after spring leaves reach full size and each tree’s marker becomes obscured. Each tree in the Citizen Scientist Tree Phenology program is marked with a tag about 6 feet from the ground–these tags correspond to the tree’s numbers on the data entry sheets.

So here, come and meet tree #95, Acer rubrum, the Red Maple:

Ed. note: Sandy Wolkenberg is a Citizen Scientist who has been working in the Thain Family Forest for three and a half years. Over the course of a week on Plant Talk, Sandy will share a five-part series of posts on The New York Botanical Garden’s Citizen Scientist Tree Phenology Program. If Sandy’s experiences motivate you to want to know more about becoming a Citizen Scientist, check out the Garden’s Volunteer Program page.

On June 16, 2011, volunteers in the Citizen Science Tree Phenology program received the following email from Jessica Arcate Schuler, Manager of the Thain Family Forest:

Hi Everyone!

I hope you are all enjoying this late spring, soon-to-be summer. I have an update on the Spicebush Trail. Unfortunately, Tuliptree #98 had to be removed this week. As many of you know, it has been struggling these past two years as a result of a severe lightning strike in summer 2009. We were hoping that it would come out of winter okay, however, it did not. The arborists felled the tree on Tuesday. I just counted the rings and it seems to be just under 150 years old. We will plan to find a healthier tuliptree to add to the project starting in spring 2012 to replace this lost tree on the Spicebush Trail. In the meantime, just ignore #98 on your datasheets for the remainder of the season.

Alas! How shall we ignore Tuliptree #98? Citizen Science Phenologists who chronicle the Spicebush Trail have lost an old friend–a tree friend, to be sure–but a friend we have been observing since the Citizen Science Tree Phenology program began in 2008. This program grew out of a long-term phenology study started by Dr. Charles Peters with the help of students and Garden staff. In 2008, the Citizen Science Phenology Program was initiated with an email to Docents from Volunteer Services. A small, curious group of Docents met to hear about this intriguing new venture. The program was quickly opened to all volunteers and soon training sessions and on-site support followed.

Learn what phenology means below.

The 50-acre, old growth  Native Forest is the heart of the Garden. It is one of the reasons Nathaniel Lord Britton settled on this 250-acre plot in the Bronx as the place to build his dream Botanical Garden, it is home to at least one tree that was alive at the time of the signing of the Declaration of Independence, it is home to some of the Garden’s most fascinating residents, it is a place where scientists can study everything from global warming to genetics, and it is a very fine place to go for a stroll. The Forest is a vital part of not just the New York Botanical Garden, but also of New York City, and the world.

For these reasons, and for so many more, we are delighted that the United Nations has declared 2011 “The International Year of Forests.” The UN says that the year is a “celebration of the vital role that forests play in people’s lives … amid growing recognition of the role that forests managed in a sustainable manner play in everything from mitigating climate change to providing wood, medicines and livelihoods for people around the world.”

We’ll be joining in on recognizing the International Year of Forests with a series of events throughout 2011 (but we’re not ready to announce them just yet). In the meantime, here are some other forest facts from the United Nations:

See the facts below.

Garden Scientist Studies “Culturally Keystone Species”

Brian M. Boom, Ph.D., is Director of the Caribbean Biodiversity Program at The New York Botanical Garden.

Add one more item to the long list of threats that indigenous peoples around the world have to their cultural survival: global warming.

In the past, when the climate changed, indigenous groups could usually migrate to areas where the climate was suitable for their ways of life. Now, with indigenous groups often restricted to territories that are surrounded by farms, ranches, and settlements of more populous and powerful non-indigenous peoples, there is usually no where for them to go. They must endure the climatic changes by adapting; if they cannot adapt, their cultures may become extinct.

While the general problem of climate change to indigenous groups is global, it is also occurring in the Amazon, an area I have studied. A recent New York Times article reported that a drier, hotter Amazonia due to deforestation and climate change is killing off the fauna and flora that indigenous groups of the region depend on for their survival. And I have some data that bear on elucidating the gravity of this issue.

In the 1980s, I teamed up with fellow botanist Ghillean Prance and anthropologists William Balée and Robert Carneiro on a comparative ethnobotanical project with the goal of quantifying the use of trees by four indigenous Amazonian groups. We published the results of our studies in 1987 in the journal Conservation Biology (vol. 1, no. 4) under the title “Quantitative Ethnobotany and the Case for Conservation in Amazonia.” Our main general finding was that these groups had specific cultural uses for between about 50% to more than 75% of the tree species in their territories. This result illustrates just how tightly dependent native Amazonians are on their environment for cultural survival. read more »