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Long Term Research in Environmental Biology

U.S. National Science Foundation · Opportunity number 21-544

View the official notice on Grants.gov
No deadline listed. Check the official notice.

Details summarized from the official notice as of Oct 16, 2026. Always confirm eligibility, deadlines and requirements in the official notice before applying.

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Key facts

Opportunity number21-544
AgencyU.S. National Science Foundation
Assistance listing (ALN, formerly CFDA)47.074
PostedDec 10, 2020
DeadlineNot listed
Award ceiling$600,000
Estimated total program funding$6,000,000
Cost sharing or matching requiredNo
Funding typeGrant
CategoryScience technology and other research and development
Last updated hereOct 16, 2026

Summary from the notice

The Long Term Research in Environmental Biology (LTREB) Program supports the generation of extended time series of data to address important questions in evolutionary biology, ecology, and ecosystem science. Research areas include, but are not limited to, the effects of natural selection or other evolutionary processes on populations, communities, or ecosystems; the effects of interspecific interactions that vary over time and space; population or community dynamics for organisms that have extended life spans and long turnover times; feedbacks between ecological and evolutionary processes; pools of materials such as nutrients in soils that turn over at intermediate to longer time scales; and external forcing functions such as climatic cycles that operate over long return intervals. All proposals submitted through the LTREB solicitation are processed by 1 of the 3 clusters in the Division of Environmental Biology: Ecosystem Science, Population and Community Ecology, and Evolutionary Processes. Proposals must address topics supported by these clusters. Researchers who are uncertain about the suitability of their project for the LTREB Program are encouraged to contact the cognizant Program Officer. Ecological research on marine populations, communities and ecosystems is not supported by LTREB and should be directed to the Biological Oceanography Program: (https://www.nsf.gov/funding/opportunities/biooce-biological-oceanography). However, research that examines the evolutionary dynamics of marine populations or communities will be accepted. Investigators who are uncertain about the suitability of their research for LTREB are strongly encouraged to contact the managing Program Officers listed in this solicitation. Examples of current LTREB awards can be viewed at https://www.nsf.gov/awardsearch/ by including 'LTREB' in a title search. The Program intends to support decadal projects. Funding for an initial, 5-year period requires submission of a proposal that includes a 15-page project description containingtwo essential components: a decadal research plan and a description of core data. Proposals for the second five years of support (renewal proposals) are limited to a ten-page project description. Continuation of an LTREB project beyond an initial ten-year award will require submission of a new proposal that presents a new decadal research plan. Specific review criteria for LTREB proposals and renewals are explained within this solicitation. Prospective proposers are advised to read this solicitation carefully.

Who can apply

The official notice lists these applicant types as eligible:

  • Others named in the notice (see the eligibility text)

Not listed as eligible

  • Small businesses
  • Nonprofits
  • Colleges and universities
  • State governments
  • Local governments
  • Tribal governments and organizations
  • Larger for-profit companies
  • Individuals

Unless the eligibility text in the notice names you, this opportunity is probably not for you.

Eligibility details from the notice

*Who May Submit Proposals: Proposals may only be submitted by the following: -Non-profit, non-academic organizations: Independent museums, observatories, research laboratories, professional societies and similar organizations located in the U.S. that are directly associated with educational or research activities. -Institutions of Higher Education (IHEs): Two- and four-year IHEs (including community colleges) accredited in, and having a campus located in the US, acting on behalf of their faculty members. Special Instructions for International Branch Campuses of US IHEs: If the proposal includes funding to be provided to an international branch campus of a US institution of higher education (including through use of sub-awards and consultant arrangements), the proposer must explain the benefit(s) to the project of performance at the international branch campus, and justify why the project activities cannot be performed at the US campus.

Registrations you will likely need

Most applications submitted through Grants.gov need the following. Registration can take several weeks, so start early. The notice lists the exact requirements.

Past awards for this program

Totals for assistance listing 47.074 from public USASpending.gov data, as of Sep 23, 2026. Past awards do not predict future funding.

YearListingAwardsTotalAverage
2026 47.074 7 $187,602,317 $26,800,331
2025 47.074 6 $175,835,355 $29,305,893
2024 47.074 6 $201,363,355 $33,560,559

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