LTER Road Trip: A Hot Time in the Forest

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To evaluate the effects of soil warming, scientists have measured soil gases including methane, nitrous oxide, and carbon dioxide as well as nitrogen fluxes every month since 1991, comparing the heated plots to control plots nearby. One of the most interesting results they have documented comes from the forest’s tiniest organisms – the microbes that digest downed leaves and branches (also known as the ecosystem’s detritus). At first, the microbes worked overtime in the heated plots, releasing more carbon dioxide through their respiration.

LTER Road Trip: Hemlock Hospice

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The hemlock is a native tree species that was once common from northern Alabama to Nova Scotia. Stretching tall with thick needles, the hemlock creates an entire ecosystem beneath its large branches. In the Smoky Mountains, its shade used to cool streams just enough to allow the eastern brook trout to thrive. Unfortunately, these hemlocks are in dramatic decline.

2018 NSF LTER Symposium: Understanding Our Ocean Connections

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colorful coral reef

The National Science Foundation Long-Term Ecological Research (LTER) Network presents an overview of the rich and varied research taking place at its 28 sites. In 2018, the topic of this annual half-day symposium is ocean ecosystems and their connections to marine species and human well-being.

LTER Road trip: Wildlife-Equipment Interactions in the Jungle

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The boat whizzed past the mangrove trees in Everglades National Park, creating a blur of blue water and green leaves. Rafael Travieso, our captain and lead technician for Florida Coastal Everglades (FCE) LTER, expertly guided us through Shark Slough to a partially hidden wooden dock. Slowing down, we glided forward until the tip of the boat barely tapped the wooden structure, which created a platform for a solar panel and what looks like a barrel.

LTER Road Trip: How Tiny Algae Could Predict Changes in the Everglades

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Coastal mangroves in Everglades National park

Viviana Mazzei studies organisms that cannot be seen with the naked eye. When I toured the Florida Coastal Everglades LTER research sites in Everglades National Park, my eyes were drawn to the mangrove trees, the dolphins, the birds. But when Mazzei, a Ph.D. student at Florida International University, wades through these ecosystems, she is on the look-out for something much smaller: diatoms, a type of single-cell algae, that thrive in this aquatic environment.

LTER Road Trip: Slip-Sliding through the Decades

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A tagged tree on transect #327 in Coweeta Experimental Forest.

I paused at the top of Coweeta Hydrologic Lab’s transect #327, peering down, down, down at the slope beneath me. Katie Bower, a research technician at Coweeta, and two summer interns had already started down the narrow pathway, accustomed to its slippery leaf layer and sharp contours.

LTER Road Trip: The Georgia Coastal Ecosystem Schoolyard Program

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Research Technician Tim Montgomery records water quality data with a teacher during the GCE schoolyard summer workshop.

During their week out at the University of Georgia Marine Institute on Sapelo Island, teachers divide their time between assisting with research in outdoor settings alongside GCE scientists and graduate students and discussing the implementation of the information and experiences into their own teaching settings.

LTER Road Trip: Exploring the Everglades

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When most people think of the Florida Everglades, they picture alligators hiding amongst labyrinths of marsh grass, the famous boardwalks of the Anhinga Trail, or the tightly clustered mangrove trees that border both the Atlantic Ocean and the Gulf of Mexico. Yet, few are aware that Everglades National Park also hosts critically important ecological research sites, where scientists from the Florida Coastal Everglades (FCE) Long Term Ecological Research (LTER) station learn about the inner workings of this incredible ecosystem, as well as how it’s responding to human activities.

2018 Ocean Science Meeting Presentations

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The Ocean Sciences Meeting (OSM) has become an important venue for scientific exchange across a wide range of marine science disciplines, especially as human impacts on the oceans reach unprecedented levels. OSM, co-sponsored by the American Geophysical Union (AGU), the Association for the Sciences of Limnology and Oceanography (ASLO), and The Oceanography Society (TOS), will be held 11–16 February, in… Read more »

LTER Road Trip: Kelp Forests link land and sea

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Close up of kelp fronds

The path to the beach was steep, partially eroded by the wind and rain on this Pacific Ocean-facing cliff in Santa Barbara. Carefully holding my camera, I scampered down as gracefully as I could after Kyle Emery and Nick Schooler, two PhD students at the University of Santa Barbara. From the top of the cliff,… Read more »