LTER Network

The LTER Network is made up of 25 sites located in diverse regions throughout the continental United States, Alaska, Anarctica, and Puerto Rico (LTER Interactive Map). Research is site-based, focusing on scientific problems and conservation challenges that are specific to local ecosystems. Sites collaborate on comparative projects and synthetic analysis. Many of our activities are coordinated through the LTER Network Office. Links to the other LTER sites plus descriptions are provided below.

  • Andrews LTER is located in the central Cascade Range of Oregon. Researchers focus on the analysis of forest and stream ecosystem dynamics. Research topics include climate dynamics, streamflow, water quality, and vegetation succession.
  • Arctic LTER is located in the Brooks Range, North Slope of Alaska. Researchers study the ecology of the surrounding tundra, streams, lakes, and landscape interaction sections. Research topics include variability in glacial age of soils, tundra vegetations and water chemistry, and size of streams and lakes.
  • Baltimore Ecosystem Study is located in Baltimore, Maryland. Researchers study ways in which an urban area works as an ecological site. Research topics include water quality, condition of the air, and also how families, associations, organizations and political bodies make decisions that affect ecological processes.
  • Bonanza Creek LTER is located in the boreal forests of interior Alaska. Researchers focus on the major controls over forest dynamics, biogeochemistry, and distrurbance and their interactions with climate change.
  • Central Arizona-Pheonix LTER is located in the Sonoran Desert of central Arizona. Like the Baltimore LTER, researchers study the impacts that urban development and ecological conditions have on each other.
  • California Current Ecosystem LTER is located off the southern coast of California in the California Current Ecosystem. Researchers focus on the importance of external forcing of the pelagic ecosyststem on mutiple time scales.
  • Cedar Creek Ecosystem Science Reserve is located in central Minnesota. Research topics include biodiversity, effects of urbanization, and habitat restoration.
  • Florida Coastal Everglades LTER is located in southern Florida. Researchers focus on the mixing of freshwater and estuarine vegetation. Research topics are concerned with how hydrology, climate, and human activities affect ecosystem and population dynamics in the ecotone and the Everglades.
  • Georgia Coastal Ecosystems LTER is located in three adjacent sounds (Altamaha, Doboy, Sapelo) off the coast of Georgia. Researchers focus on the patterns and processes spacially and temporally within and between these sites. Research topics include changes in water quality, river discharge, runoff, and tidal inundation patterns throughout the estuarine landscape.
  • Harvard Forest LTER is located in Petersham, Massachussetts. Researchers work to understand forest responses to natural and human disturbance and environmental change. Research topics include biodiversity, effects of invasive organisms, soil nutrient dynamics, and forest-atmosphere exchange.
  • Hubbard Brook Ecosystem Study is located in the Hubbard Brook Experiemental Forest in White Mountain National Forest, New Hampshire. Research topics include using a small watershed technique as a method of studying ecosystem processes.
  • Jornada Basin LTER is located in the northern Chihuahuan Desert near Las Cruces, New Mexico. It studies the consequences of desertification. Research topics are concerned with how historic legacies, the geomorphic template, transport vectors, and environmental drivers interact with the path structure of the vegetation to determine past, present, and future ecosystem dynamics across scales.
  • Kellogg Biological Station LTER is located in southwest Michigan in the eastern portion of the US cornbelt. Researchers focus on how diverse plants, animals, and microbes in agricultural landscapes can contribute to farm productivity, environmental performance, and profitability.
  • Konza Prairie Biological Station is located in the Flint Hills of northeastern Kansas. Researchers study the influence of multiple global change phenomena on the sustainability and dynamics of grassland ecosystems worldwide. Research topics include changes in land-use and land cover, climate and hydrologic change, nutrient enrichment, and biological invasions.  
  • Luquillo LTER is located in the Luquillo Mountains of Puerto Rico. Research interests include large-scale disturbances and how they relate to detrital dynamics, global climate change, tropical forest carbon dynamics, and changes in biodiversity.
  • McMurdo Dry Valleys LTER is located in an ice-free area on the shore of McMurdo Sound in Antarctica. Researchers study dry valley ecosystems. Research topics include biodiversity, the impact of climatic legacies, and ecosystem structure and function.
  • Moorea Coral Reef LTER is located in Moorea, an island near Tahiti, French Polynesia. Researchers conduct field-based research in biocultural organization, anthropology, economics, and the social sciences. Moorea facilitates transdisciplinary science and concentrates on both human capital and technological infrastructure.
  • Niwot Ridge LTER is located near Boulder, Colorado. Researchers focus on the interactions between climate and ecosystems for high elevation sites. Research topics include transport processes, nitrogen deposition, and effects of adjacent urban landscapes.
  • North Temperate Lakes LTER is located in 11 lake sites throughout Wisconsin. Researchers study atmospheric, geochemical, landscape and human processes in relation to lake ecology.
  • Palmer Station is one of the three US research stations located in Anarctica. Researchers study the Antarctic pelagic marine ecosystem, including sea ice habitats, regional oceanography and terrestrial nesting sites of seabird predators. 
  • Plum Island Ecosystems LTER is located in northeastern Massachusetts. Research concerns watershed and estuarine ecosystems, intertidal marshes, and tidal creeks and bays.
  • Santa Barbara Coastal LTER is located along the coast of southern California, on the active boundary of the Pacific Oceanic Plate and the North American Continental Plate. Research topics are concerned with determining the relative contributions of land-and-ocean-derived constituents in structuring kelp forest ecosystems.
  • Sevilleta LTER is located in central New Mexico, in and around the Sevilleta National Wildlife Refuge. Researchers investigate how climate variability and climate change act together to affect ecosystem dynamics at biotic transition zones.
  • Virginia Coast Reserve LTER is located along the Atlantic shore of the Delmarva Peninsula in Virginia. Researchers study the response of coastal barrier systems to long-term enviornmental change. Research topics include holocene barrier island geology, salt marsh ecology, and insular vertebrates.