The Long-Term Ecological Research Program (LTER) funded by the National Science Foundation’s Division of Biotic Systems, is mandated to pursue ecological research over long time periods at a variety of sites throughout the United States. Climate research is recognized by both ecologists and climatologists as having a key role in long-term ecological research. Each LTER site maintains its own climate program and at many sites climate data represent the longest data set available.
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Themed Collection on North American Drylands

2026 Photo Contest

Lessons Learned from Spending a Month at Sea

Young Voices of Science: 2026 applications open

Call for proposals: Global ILTER Activity 2026

Call for Proposals: 4th ILTER Open Science Meeting (OSM) 2027
Reminder: Synthesis RFP deadline September 16

LTER at ESA, 2026

Studying post-fire Snowpack at the H.J. Andrews Experimental Forest

2026 Site Exchanges Announced