U.S. National Science Foundation · United States

Long Term Research in Environmental Biology

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U.S. National Science Foundation expects to make awards of up to $600,000 each, from a total budget of $6 million. Eligible applicant types include others (see text field entitled "Additional Information on Eligibility" for clarification).

Deadline: Not published yet — check the official call
Grant amount: Up to $600,000 per project
Total budget: $6 million
Funding rate: No mandatory cost sharing stated; funding percentage not stated
Total budget: $6 million
Cost sharing: Not required
Funder: U.S. National Science Foundation
Reference: 21-544
Assistance listing: 47.074 Biological Sciences
Last checked: 13 Nov 2026

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About this call

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.

Read the full text

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

Others (see text field entitled "Additional Information on Eligibility" for clarification)

*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.

Applicant categories are a starting point. The official call decides eligibility.

Topics

Science and Technology and other Research and Development

Timing

Proposals accepted anytime

How to apply

Apply through the funder’s official page (link below); it states the procedure, documents and deadline.

From the call text

Who can apply: Not stated in the call text we hold — check the official page
Company stage: Not stated in the call text we hold — check the official page
Single applicant or consortium: Not stated in the call text we hold — check the official page
Where applicants must be based: *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.
Where to apply: Not stated in the call text we hold — check the official page

Contact

U.S. National Science Foundation · grantsgovsupport@nsf.gov · 703-292-4203

Where these facts come from

Fact	Value	How we know	Taken from the source
Deadline	Unknown — not stated in the source we hold	unknown	—
Amount per applicant	Up to $600,000	official data field	15 Nov 2026
Total budget	$6 million	official data field	15 Nov 2026
Funding rate	No mandatory cost sharing stated; funding percentage not stated	read from the official text	15 Nov 2026
Who can apply	Others (see text field entitled "Additional Information on Eligibility" for clarification)	official data field	15 Nov 2026
Where to apply	Unknown — not stated in the source we hold	unknown	—

Official sources

Official call page · Funder's programme page

Facts on this page come from the funder’s official data, taken on 13 Nov 2026. The funder's own documents, including later amendments, always take precedence.