Sixth graders from school Luis Muñoz Rivera visiting the Sabana Field Research Station to learn about the TRACE project.

Dr. Miriam Salgado teaching the students about the river sampling she performs as part of a long-term monitoring program.

Dr. Tamara Wood showing catched shrimps from the Sabana river next to the station.

Dr. Tana Wood explaining acidification reactions and their relevance for ocean ecosystems.

Dr. Tana Wood in station #2: Acidification.

Students learing about ocean acidification effects on marine organisms.

Nicole Gutierrez-Ramos explaining the concept of the carbon footprint.

Nicole Gutierrez-Ramos explaining greenhouse gases effects.

Nicole Gutierrez-Ramos helping the students calculate their carbon footprint.

Megan Berberich explaining the warming experiment design and our research interests.

Students learning from Megan Berberich about the instruments and sensors of our experimental site.

William Mejia Garcia showing to the students some of the plant species found in our experimental site.

William Mejia Garcia demonstrates how the Minirhizotron camera is operated to the students.

Iana Grullon-Penkova explaining the importance of root dynamics studying.

Iana Grullon-Penkova showing the students how to measure root length and diameter.

Students learning about our different methods for measuring root traits and dynamics.

Sixth graders from school Luis Muñoz Rivera visiting the Sabana Field Research Station to learn about the TRACE project.

Dr. Miriam Salgado teaching the students about the river sampling she performs as part of a long-term monitoring program.

Dr. Tamara Wood showing catched shrimps from the Sabana river next to the station.

Dr. Tana Wood explaining acidification reactions and their relevance for ocean ecosystems.

Dr. Tana Wood in station #2: Acidification.

Students learing about ocean acidification effects on marine organisms.

Nicole Gutierrez-Ramos explaining the concept of the carbon footprint.

Nicole Gutierrez-Ramos explaining greenhouse gases effects.

Nicole Gutierrez-Ramos helping the students calculate their carbon footprint.

Megan Berberich explaining the warming experiment design and our research interests.

Students learning from Megan Berberich about the instruments and sensors of our experimental site.

William Mejia Garcia showing to the students some of the plant species found in our experimental site.

William Mejia Garcia demonstrates how the Minirhizotron camera is operated to the students.

Iana Grullon-Penkova explaining the importance of root dynamics studying.

Iana Grullon-Penkova showing the students how to measure root length and diameter.

Students learning about our different methods for measuring root traits and dynamics.

TRACE Annual Meeting

TRACE Annual Meeting

TRACE Annual Meeting

TRACE Annual Meeting

TRACE Annual Meeting

TRACE Annual Meeting

PI Tana Wood presents the project to the NGEE Tropics visitors.

NGEE members listen to a project introduction by PI Tana Wood.

Visitors go to the TRACE experimental plots at the Sabana Field Research Station for a tour.

Collaborator Jennifer Pett-Ridge presents her work to NGEE Tropics visitors.

Visitors listen to collaborator Jennifer Pett-Ridge present her work. To her left collaborator Karis McFarlane.

NGEE Tropics group during a discussion session.

PI Tana Wood presents the project to the NGEE Tropics visitors.

NGEE members listen to a project introduction by PI Tana Wood.

Visitors go to the TRACE experimental plots at the Sabana Field Research Station for a tour.

Collaborator Jennifer Pett-Ridge presents her work to NGEE Tropics visitors.

Visitors listen to collaborator Jennifer Pett-Ridge present her work. To her left collaborator Karis McFarlane.

NGEE Tropics group during a discussion session.

Soil pit profile.

Tana Wood during the opening of the 1st pit.

William Mejia opening our 2nd soil pit.

Megan Berberich opening soil pit # 1.

Iana Grullon-Penkova during the opening of the 3rd pit.

Our PIs Sasha Reed, Molly Cavaleri, and Tana Wood sorting soils during our sampling campaign.

Nicole Gutierrez-Ramos, William Mejia and Jamarys Torres during sorting soil and roots during the soil pit campaign.

Armin Howell processing soil samples.

Iana Grullon-Penkova and Robin Reibold during lab preparation for the sample processing.

Robin Reibold filtering soil samples for nutrient extractions.

Soil pit profile.

Tana Wood during the opening of the 1st pit.

William Mejia opening our 2nd soil pit.

Megan Berberich opening soil pit # 1.

Iana Grullon-Penkova during the opening of the 3rd pit.

Our PIs Sasha Reed, Molly Cavaleri, and Tana Wood sorting soils during our sampling campaign.

Nicole Gutierrez-Ramos, William Mejia and Jamarys Torres during sorting soil and roots during the soil pit campaign.

Armin Howell processing soil samples.

Iana Grullon-Penkova and Robin Reibold during lab preparation for the sample processing.

Robin Reibold filtering soil samples for nutrient extractions.

Contractors, interns and Citizens of the Karst director Abel Vale.

Interns during introductory presentation about Citizens of the Karst work.

Guided tour around el Tallonal, experimental station of Citizens of the Karst

Interns and contractors learning about cooperators (CDK) work.

El Tallonal Station

Interns during their visit at El Tallonal Station

Interns: Kevin Santiago, Alia Ortiz, Angie Gonzalez , Alexandra Soto, Karla Rivera, Keisharie Pagan, and Wilfredo Robles

Interns and contractors during night guided tour at El Tallonal Station.

El Tallonal Station

Contractors, interns and Citizens of the Karst director Abel Vale.

Interns during introductory presentation about Citizens of the Karst work.

Guided tour around el Tallonal, experimental station of Citizens of the Karst

Interns and contractors learning about cooperators (CDK) work.

El Tallonal Station

Interns during their visit at El Tallonal Station

Interns: Kevin Santiago, Alia Ortiz, Angie Gonzalez , Alexandra Soto, Karla Rivera, Keisharie Pagan, and Wilfredo Robles

Interns and contractors during night guided tour at El Tallonal Station.

El Tallonal Station

Tana Wood presents post hurricane results to LTER Science Council at Sabana Field Research Station Visit. - May 15 2019

Tamara Heartsill presents multiple research projects in the Luquillo Experimental Forest during the LTER Science Council Visit. - May 15 2019

Tana Wood presents post hurricane results to LTER Science Council at Sabana Field Research Station Visit. - May 15 2019

Tamara Heartsill presents multiple research projects in the Luquillo Experimental Forest during the LTER Science Council Visit. - May 15 2019

Ashley Cable and Michelle López Lorenzo working on the 2019 Seedling Census.

Emmanuel Kendle working on the 2019 Seedling Census

Paola Vázquez and Julitsa Fernández working on the 2019 Seedling Census.

Jamilex Cuevas working on the 2019 Seedling Census.

Ashley Cable and Michelle López Lorenzo working on the 2019 Seedling Census.

Emmanuel Kendle working on the 2019 Seedling Census

Paola Vázquez and Julitsa Fernández working on the 2019 Seedling Census.

Jamilex Cuevas working on the 2019 Seedling Census.

Intern Carolina May collecting a core at one of the plots.

Virginia-Rose Seagal, Aral Greene, and Rob Tunison sorting roots.

Rob Tunison and intern Carolina May measure root respiration.

Tana Wood and volunteer Shiho Koike clean and sort roots.

Interns Virginia-Rose Seagal and Carolina May and Iana Grullon-Penkova sort roots from one of the ingrowth cores.

Tana Wood and intern Carolina May cleaning roots.

Intern Virginia-Rose Seagal scans live roots.

Volunteers Alexandra Lalor and Shiho Koike archive soil.

Megan Berberich doing nutrients extractions.

Intern Carolina May collecting a core at one of the plots.

Virginia-Rose Seagal, Aral Greene, and Rob Tunison sorting roots.

Rob Tunison and intern Carolina May measure root respiration.

Tana Wood and volunteer Shiho Koike clean and sort roots.

Interns Virginia-Rose Seagal and Carolina May and Iana Grullon-Penkova sort roots from one of the ingrowth cores.

Tana Wood and intern Carolina May cleaning roots.

Intern Virginia-Rose Seagal scans live roots.

Volunteers Alexandra Lalor and Shiho Koike archive soil.

Megan Berberich doing nutrients extractions.

Root pluck during the September 2018 ingrowth core campaign.

Intern Aral Greene and volunteer Marguerite Kinsella sorting roots.

Megan Berberich collects soil and roots for microbial analysis while volunteer Marguerite Kinsella unpacks the core.

Megan Berberich, Helena Kleiner, Jacob Luna , and Iana Grullon-Penkova during the campaign.

Interns Aral Greene and Helena Kleiner measuring root specific respiration.

Cleaned roots ready to be scanned.

Intern Gilmarie Rivera scanning roots.

Iana Grullon-Penkova and volunteer Ry Patton sorting roots.

Soil nutrient extractions.

Megan Berberich is responsible for nutrient extractions.

Cores and soil ready to be packed.

Full oven! Roots getting dried out.

Root pluck during the September 2018 ingrowth core campaign.

Intern Aral Greene and volunteer Marguerite Kinsella sorting roots.

Megan Berberich collects soil and roots for microbial analysis while volunteer Marguerite Kinsella unpacks the core.

Megan Berberich, Helena Kleiner, Jacob Luna , and Iana Grullon-Penkova during the campaign.

Interns Aral Greene and Helena Kleiner measuring root specific respiration.

Cleaned roots ready to be scanned.

Intern Gilmarie Rivera scanning roots.

Iana Grullon-Penkova and volunteer Ry Patton sorting roots.

Soil nutrient extractions.

Megan Berberich is responsible for nutrient extractions.

Cores and soil ready to be packed.

Full oven! Roots getting dried out.

Aura Alonso hits the power button and we are warming again!

Aura Alonso setting up the warming.

Tana Wood and Aura Alonso in our first day of warming!

Aura Alonso with Megan Berbeich and Iana Grullon-Penkova.

The team celebrates the start of the warming.

Two years already!

Getting ready for our first inspection.

Megan Berberich points an infrared thermometer to one of the heaters to inspect it.

Helena Kleiner cleans the heaters for maintenance.

Aura Alonso hits the power button and we are warming again!

Aura Alonso setting up the warming.

Tana Wood and Aura Alonso in our first day of warming!

Aura Alonso with Megan Berbeich and Iana Grullon-Penkova.

The team celebrates the start of the warming.

Two years already!

Getting ready for our first inspection.

Megan Berberich points an infrared thermometer to one of the heaters to inspect it.

Helena Kleiner cleans the heaters for maintenance.

Plot 2 before and after hurricanes. The first picture was taken 3 years ago!

Plot 4 before and after repairs. Damage from both hurricanes, and how it looks now.

Plot 5 before and after repairs.

Plot 2 before and after hurricanes. The first picture was taken 3 years ago!

Plot 4 before and after repairs. Damage from both hurricanes, and how it looks now.

Plot 5 before and after repairs.

Plot 1 Control plot
Amazing understory growth!

Plot 1

Plot 2 Heated plot
But we are not heating yet!

Plot 3 Control plot

Plot 3

Plot 4 Heated plot
Not much sign of the uprooted tree anymore!

Plot 4

Plot 5 Control plot

Plot 5

Plot 6 Heated plot
Lots of cecropia!

Plot 6

Plot 1 Control plot
Amazing understory growth!

Plot 1

Plot 2 Heated plot
But we are not heating yet!

Plot 3 Control plot

Plot 3

Plot 4 Heated plot
Not much sign of the uprooted tree anymore!

Plot 4

Plot 5 Control plot

Plot 5

Plot 6 Heated plot
Lots of cecropia!

Plot 6

Yet another ingrowth core campaign of course!

Tana Wood is in charge of nutrient extractions.

Aura Alonso is in charge of measuring root specific respiration.

Root cleaning and scanning.

Intern Gisela Gonzalez maintains the water bath temperatures.

Volunteers Kiara and Juan are conducting resin nutrient extractions with HCl.

Visit from PIs and research technicians!

Surface lysimeters will be installed in the plots to collect leachate from the litter layer.

One was installed per plot.

Leachate gets collected in this bucket by gravity.

PIs Sasha, Tana and Molly and looking at the effects of the hurricanes on the field site, and are amazed with the accelerated understory growth!

Molly Cavaleri by the canopy access tower.

Hurricane survivor!

New interns Nate, Kyle, Anna and Esther have joined our team.

Nate and Anna repair some sensors in the plots.

Very hard working interns got stuck under a bit of rain in the field.

We finally have an official trail!! Thanks to FS hurricane recovery team for making it happen.

Walking around our field site is SO much easier now.

Michigan Tech PhD student Kelsey Carter is back.

She trained interns Anna and Esther on measuring photosynthesis with a LI6400.

Anna is getting the hang of it.

Esther struggles with the rain.

Tana gives a talk to a few past and present interns with results of our first year of warming.

What a team!

Thank you all for being part of TRACE!

LTER volunteers have come to help us with our yearly seedling census.

Measuring seedlings inside the plots is a bit harder now. Look at all that understory growth!

Measuring diameter at base.

Measuring height.

Anna is repairing the LI6400.

Nate is doing some cleaning.

Kyle is terrorized by the amount of data entry in his future.

Yet another ingrowth core campaign of course!

Tana Wood is in charge of nutrient extractions.

Aura Alonso is in charge of measuring root specific respiration.

Root cleaning and scanning.

Intern Gisela Gonzalez maintains the water bath temperatures.

Volunteers Kiara and Juan are conducting resin nutrient extractions with HCl.

Visit from PIs and research technicians!

Surface lysimeters will be installed in the plots to collect leachate from the litter layer.

One was installed per plot.

Leachate gets collected in this bucket by gravity.

PIs Sasha, Tana and Molly and looking at the effects of the hurricanes on the field site, and are amazed with the accelerated understory growth!

Molly Cavaleri by the canopy access tower.

Hurricane survivor!

New interns Nate, Kyle, Anna and Esther have joined our team.

Nate and Anna repair some sensors in the plots.

Very hard working interns got stuck under a bit of rain in the field.

We finally have an official trail!! Thanks to FS hurricane recovery team for making it happen.

Walking around our field site is SO much easier now.

Michigan Tech PhD student Kelsey Carter is back.

She trained interns Anna and Esther on measuring photosynthesis with a LI6400.

Anna is getting the hang of it.

Esther struggles with the rain.

Tana gives a talk to a few past and present interns with results of our first year of warming.

What a team!

Thank you all for being part of TRACE!

LTER volunteers have come to help us with our yearly seedling census.

Measuring seedlings inside the plots is a bit harder now. Look at all that understory growth!

Measuring diameter at base.

Measuring height.

Anna is repairing the LI6400.

Nate is doing some cleaning.

Kyle is terrorized by the amount of data entry in his future.