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The Long Term Ecological Research (LTER) Network is a collaborative effort involving more than 1800 scientists and students investigating ecological processes over long temporal and broad spatial scales.
The Network promotes synthesis and comparative research across sites and ecosystems and among other related national and international research programs.
The National Science Foundation established the LTER program in 1980 to support research on long-term ecological phenomena in the United States.
The 26 LTER Sites represent diverse ecosystems and research emphases
The LTER Network Office coordinates communication, network publications, and research-planning activities.

For Researchers

The LTER Network offers the broader environmental biology research community, including students and foreign scientists, the opportunity to use the sites for both long-and short-term projects appropriate to individual sites, a group of sites, or the Network as a whole.
Initial arrangements for collaborations should be made with the principal investigator at the LTER site.

Important Links

Personnel Directory
Data
LTER All-Site Bibliography
LTER History
LTER Affiliations
Download the LTER Brochure
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The mission of the LTER Network:

Understanding ecological phenomena over long temporal and large spatial scales
Creating a legacy of well-designed and documented long-term experiments and observations for future generations
Conducting major synthetic and theoretical efforts
Providing information for the identification and solution of ecological problems

Core research areas:

Pattern and control of primary production
Spatial and temporal distribution of populations selected to represent trophic structures
Pattern and control of organic matter accumulation and decomposition in surface layers and sediments
Patterns of inorganic inputs and movements of nutrients through soils, groundwater and surface waters
Patterns and frequency of disturbances

More information on core research areas

What's New in LTER

ANNOUNCEMENTS

•	2004 Schoolyard LTER Survey
•	Data available from LTER LIDAR overflights
•	LTER Student Collaborative Research Symposium (PDF)
•	New LTER Planning Grant (PDF)
•	NSF Awards $10 Million in Grants to Ocean Sites for Long-Term Ecological Research
•	New LTER Bylaws (PDF)
•	LTER All Scientists Meeting Survey Now Available

Climate Variablilty and Ecosystem Response Latest LTER/Oxford Synthesis Volume Published

•	LTER Planning Project
•	NEW! LTER Core Area Research Website
•	Latest LTER Findings
•	20 Years of Research-LTER Vignettes
•	20 year review report
•	LTER Mutimedia Gallery
•	Global Change Research in LTER
•	2004 LTER-NSF Symposium

Network Newsletter - Main Stories

The entire group gathers in the Town Hall to hear the 2003 LTER ASM Keynote Speakers. Read more

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- Copyright 2004 Long Term Ecological Research Network -
This material is based upon work supported by the National Science Foundation under Cooperative Agreement #DEB-0236154. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.
Please contact us with questions, comments, or for technical assistance regarding this web site or the LTER Network.