Liabilities / Assets
32nd percentile
Higher debt load relative to assets than 32% of similar nonprofits.
EIN 56-2125831 • 501(c)3 • Durham, NC
Profile
Organization for tropical studies, inc. Was formed for the purpose of establishing, fostering, supporting, and conducting education and research programs related to the tropics; to establish, maintain and operate facilities for these purposes; to publish the results of research; and to carry out other activities related to the furthering of education and research in the tropics.
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
32nd percentile
Higher debt load relative to assets than 32% of similar nonprofits.
Liabilities / Revenue
34th percentile
Higher debt load relative to revenue than 34% of similar nonprofits.
Net Margin
60th percentile
Higher net margin than 60% of similar nonprofits.
Top Officer Pay
46th percentile
Higher top officer pay than 46% of similar nonprofits.
Top officer pay equals 1.1% of source-year revenue.
Asset Growth
68th percentile
Faster asset growth than 68% of similar nonprofits.
Revenue Growth
45th percentile
Faster revenue growth than 45% of similar nonprofits.
Assets
Up$18,625,423
Up $2,991,449 (+19%) from 2024
Liabilities
Up$1,115,145
Up $70,089 (+6.7%) from 2024
Net Assets
Up$17,510,278
Up $2,921,360 (+20%) from 2024
Revenue
Up$9,701,537
Up $482,324 (+5.2%) from 2024
Expenses
Down$8,798,295
Down $1,060,442 (-11%) from 2024
Net Income
Up$903,242
Up $1,542,766 (+241%) from 2024
Most recent year
2025 • Form 990Detailed filing. Detailed filing data is available for this year.
The organization for tropical studies, inc. (ots) is chartered as a non profit corporation under the laws of north carolina and is supported by a consortium of institutions of higher learning in north, central, and south america, australia, and south africa. Ots's purpose is to sustain tropical ecosystems by driving scientific discovery and knowledge, by enriching human perception of nature, and by enhancing worldwide policy in the tropics.
SEE PART III, LINE 1.
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Investments in Publicly Traded Securities | $7,971,101 | $9,561,684 | ▲ $1,590,583 |
| Land, Buildings, and Equipment, Net | $2,615,569 | $3,448,973 | ▲ $833,404 |
| Investments Other Securities | $3,217,175 | $3,284,830 | ▲ $67,655 |
| Cash and Non-Interest-Bearing Accounts | $549,134 | $1,031,555 | ▲ $482,421 |
| Savings and Temporary Cash Investments | $360,415 | $425,881 | ▲ $65,466 |
| Accounts Receivable | $187,424 | $166,159 | ▼ $21,265 |
| Prepaid Expenses and Deferred Charges | $26,502 | $52,657 | ▲ $26,155 |
| Inventories for Sale or Use | $29,124 | $34,593 | ▲ $5,469 |
| Pledges and Grants Receivable | $21,368 | $2,389 | ▼ $18,979 |
| Total Assets | $15,633,974 | $18,625,423 | ▲ $2,991,449 |
| Other Assets Total | $656,162 | $616,702 | ▼ $39,460 |
| Liabilities | |||
| Accounts Payable and Accrued Expenses | $580,599 | $568,147 | ▼ $12,452 |
| Deferred Revenue | $209,085 | $462,319 | ▲ $253,234 |
| Other Liabilities | $255,372 | $84,679 | ▼ $170,693 |
| Total Liabilities | $1,045,056 | $1,115,145 | ▲ $70,089 |
| Net Assets / Fund Balance | |||
| Net Assets With Donor Restrictions | $10,797,370 | $12,886,144 | ▲ $2,088,774 |
| Net Assets Without Donor Restrictions | $3,791,548 | $4,624,134 | ▲ $832,586 |
| Total Net Assets Fund Balance | $14,588,918 | $17,510,278 | ▲ $2,921,360 |
| Total Liabilities and Net Assets / Fund Balance | $15,633,974 | $18,625,423 | ▲ $2,991,449 |
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Buildings | $1,495,598 | $2,109,258 | $3,604,856 |
| Equipment | $111,742 | $1,922,432 | $2,034,174 |
| Land | $1,823,790 | - | $1,823,790 |
| Other Land Buildings | $17,843 | $338,204 | $356,047 |
| Other Securities | $3,284,830 | - | - |
| Period | Beginning | Contrib. | Gain/Loss | Other Uses | End |
|---|---|---|---|---|---|
| 2024 | $11,579,457 | - | ▲ $2,189,138 | $215,417 | $13,293,928 |
| 2023 | $10,206,347 | - | ▲ $1,600,942 | $99,853 | $11,579,456 |
| 2022 | $9,706,233 | $136,754 | ▲ $1,033,951 | $161,591 | $10,206,347 |
| 2021 | $13,537,381 | - | ▼ $2,832,809 | $139,114 | $9,706,233 |
| 2020 | $10,748,365 | $140,273 | ▲ $3,434,707 | $63,236 | $13,537,381 |
| Name | Title | Full / Part Time | Base | Other | Total |
|---|---|---|---|---|---|
| Jennifer Kelley | Chief Administrative Officer | FT | $89,760 | $20,770 | $110,530 |
| Miguel Mendez | Chief Operating Officer | FT | $86,608 | $11,831 | $98,439 |
| Elizabeth Braker | Dir./pres./CEO (from Nov. 24) | FT | $26,667 | - | $26,667 |
| Name | Title |
|---|---|
| Chelsea Ward | Director/ Chair |
| Alvaro Umana | Director |
| Andre Kessler | Director |
| Bryan Heidorn | Director |
| George Middendorf Iii | Director |
| James Dalling | Director |
| Javier Mateo-vega | Director |
| John Tobin | Director |
| Michael Wasserman | Director |
| Muriel Poston | Director |
| Nathan Muchhala | Director |
| Oscar Rocha | Director |
| William Wcislo | Director |
| Susan Cordell | Director (until June 2025) |
| Erin Kuprewicz | Director / Secretary |
| Kyle Harms | Director, (from June 2025) |
| Terry Vogt | Director, (until July 2024) |
| Rafael Munoz-carpena | Director/ Treasurer |
| Contribution Type | Contribution Count | Reported Amount | Valuation Method |
|---|---|---|---|
| Real Estate Residential | 1 | $927,700 | Appraisal |
| Total Noncash Contributions | 1 | $927,700 | - |
| Line Item | Amount |
|---|---|
| Other Expenses | $4,325,104 |
| Salaries, Compensation, and Employee Benefits | $4,241,853 |
| Total Fundraising Expense | $369,745 |
| Grants and Similar Amounts Paid | $231,338 |
| Professional Fundraising Fees | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Other Salaries and Wages | $2,276,244 | $281,687 | $219,371 | $2,777,302 |
| Fees for Services Other | $1,088,424 | $46,728 | $3,675 | $1,138,827 |
| Other Employee Benefits | $859,442 | $158,681 | $54,338 | $1,072,461 |
| Travel | $928,150 | $34,611 | $57,396 | $1,020,157 |
| Occupancy | $847,317 | $22,273 | $4,925 | $874,515 |
| Current Officers, Directors, Trustees, and Key Employees | $16,347 | $311,534 | $1,034 | $328,915 |
| Depreciation Depletion | $227,395 | $7,646 | - | $235,041 |
| Foreign Grants | $148,241 | - | - | $148,241 |
| Office Expenses | $81,865 | $18,731 | $7,123 | $107,719 |
| Insurance | $37,744 | $50,917 | $8,886 | $97,547 |
| Grants to Domestic Individuals | $83,097 | - | - | $83,097 |
| All Other Expenses | $41,188 | $36,746 | $1,820 | $79,754 |
| Fees for Services Accounting | - | $75,601 | - | $75,601 |
| Payroll Taxes | $32,989 | $7,011 | $2,086 | $42,086 |
| Other Expenses | $11,389 | $15,364 | $2,681 | $29,434 |
| Fees for Services Legal | $1,566 | $24,928 | - | $26,494 |
| Fees for Service Investment Mgmnt Fees | - | $25,547 | - | $25,547 |
| Pension Plan Contributions | $16,531 | $3,513 | $1,045 | $21,089 |
| Advertising | $160 | $2 | $17 | $179 |
| Total Functional Expenses | $7,282,679 | $1,145,871 | $369,745 | $8,798,295 |
| Line Item | Amount |
|---|---|
| Total Expenses per Audited Statements | $9,392,044 |
| Total Expenses per Form 990 | $8,798,295 |
| Expenses per Audited Statements | $8,772,748 |
| Expenses Not Reported on Form 990 | $619,296 |
| Expenses Not Reported on Financial Statements | $25,547 |
| Region | Activity | Services | Offices | Employees | Spending |
|---|---|---|---|---|---|
| Central America and the Caribbean | Program Services | Education, Researach Programs, Conservation | 4 | 109 | $7,345,328 |
| Sub-saharan Africa | Program Services | Education, Researach Programs, Conservation | 1 | 13 | $846,791 |
| Central America and the Caribbean | Grants to Recipients Located in Region | - | 0 | 0 | $146,728 |
| Sub-saharan Africa | Grants to Recipients Located in Region | - | 0 | 0 | $1,337 |
| Europe | Grants to Recipients Located in Region | - | 0 | 0 | $176 |
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
| Liability | Amount |
|---|---|
| Refundable Advances | $84,679 |
“The organization has institutional members consisting of universities, colleges, research institutions and museums.”
“Institutional members have voting rights that allow for the election of the board of directors, other than president. The maximum number of directors on the board is eighteen (18) and nine (9) of the directors are elected by institutional members. Members elected by institutional members are referred to as member directors.”
“The form 990 is prepared by outside accountants and reviewed by senior management. The organization's form 990 is distributed to the governing body for its review via electronic mail.”
“Each member of the board of directors and each employee in a sensitive position, at the time they assume position and thereafter at least annually, sign a written statement affirming that they have received and read the policy and that they agree to comply with the policy. The organization assigns one staff member to collect the annual certifications. The controller, ceo or the chair of the board are notified if a conflict of interest arises. The ceo is responsible for resolving all staff conflicts. Board conflicts are discussed at either a full board meeting or an executive committee meeting and an appropriate course of action to resolve the conflict of interest then determined.”
“The organization's outside recruiter utilizes comparable data to establish the president and ceo's compensation. The personnel committee is responsible for conducting the annual performance review of the president/ceo. The recruiter provides advice to the search committee and personnel committee that is made up of board members and non-board members, and the committee makes a compensation recommendation to the board of directors for its review and approval. The governance committee is charged with performing salary reviews for future ceos. The last compensation review took place in february 2017.”
“The organization makes its governing documents, conflict of interest policy and financial statements available to the public upon request.”
“Botanical serv: program service expenses 2,518. Management and general expenses 22. Fundraising expenses 2. Total expenses 2,542. Course coordinator: program service expenses 57,582. Management and general expenses 511. Fundraising expenses 48. Total expenses 58,141. Faculty: program service expenses 88,461. Management and general expenses 785. Fundraising expenses 73. Total expenses 89,319. Field assistant: program service expenses 212. Management and general expenses 2. Fundraising expenses 0. Total expenses 214. Maintenance assist: program service expenses 5,878. Management and general expenses 52. Fundraising expenses 5. Total expenses 5,935. Project specialist: program service expenses 548,927. Management and general expenses 4,873. Fundraising expenses 455. Total expenses 554,255. Science specialist: program service expenses 4,921. Management and general expenses 44. Fundraising expenses 4. Total expenses 4,969. Services: program service expenses 32,808. Management and general expenses 291. Fundraising expenses 27. Total expenses 33,126. Teaching assistant: program service expenses 8,365. Management and general expenses 74. Fundraising expenses 7. Total expenses 8,446. Translate services: program service expenses 1,197. Management and general expenses 11. Fundraising expenses 1. Total expenses 1,209. Contract services: program service expenses 337,555. Management and general expenses 40,063. Fundraising expenses 3,053. Total expenses 380,671.”
“The endowments are primarily for scholarships and fellowships for students who study or do research in our stations. There are a few endowments that cover expenses for specific purposes, like a field station, environmental policy, or strategic transformation of ots.”
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
| Path | # | Value |
|---|---|---|
| IRS990/AccountantCompileOrReviewInd | 0 | 0 |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 580599 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 568147 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 187424 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 166159 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | SEE PART III, LINE 1. |
| IRS990/AdvertisingGrp/FundraisingAmt | 0 | 17 |
| IRS990/AdvertisingGrp/ManagementAndGeneralAmt | 0 | 2 |
| IRS990/AdvertisingGrp/ProgramServicesAmt | 0 | 160 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 179 |
| IRS990/AllOtherContributionsAmt | 0 | 5884974 |
| IRS990/AllOtherExpensesGrp/FundraisingAmt | 0 | 1820 |
| IRS990/AllOtherExpensesGrp/ManagementAndGeneralAmt | 0 | 36746 |
| IRS990/AllOtherExpensesGrp/ProgramServicesAmt | 0 | 41188 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 79754 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BackupWthldComplianceInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | MIGUEL MENDEZ G |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 9196845774 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 408 SWIFT AVENUE |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | DURHAM |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | NC |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 27705 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | 0 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 549134 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 1031555 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompCurrentOfcrDirectorsGrp/FundraisingAmt | 0 | 1034 |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 311534 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 16347 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 328915 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 1 |
| IRS990/CompensationProcessOtherInd | 0 | 0 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 0 |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 5942893 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 231338 |
| IRS990/CYInvestmentIncomeAmt | 0 | 209049 |
| IRS990/CYOtherExpensesAmt | 0 | 4325104 |
| IRS990/CYOtherRevenueAmt | 0 | 348 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 3549247 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 903242 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 4241853 |
| IRS990/CYTotalExpensesAmt | 0 | 8798295 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 369745 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 9701537 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 1 |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 209085 |
| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 462319 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 7646 |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 227395 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 235041 |
| IRS990/Desc | 0 | FACILITATED RESEARCH AND CONSERVATION: THE ORGANIZATION RECEIVES GRANTS AND CONTRACTS TO SUPPORT SCIENTIFIC RESEARCH AT ITS FIELD STATIONS AND CONSERVATION PROJECTS AT, AND IN THE VICINITY OF, ITS FIELD STATIONS. |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 1 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/DonorRestrictionNetAssetsGrp/BOYAmt | 0 | 10797370 |
| IRS990/DonorRestrictionNetAssetsGrp/EOYAmt | 0 | 12886144 |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | 1 |
| IRS990/ElectionOfBoardMembersInd | 0 | 1 |
| IRS990/EmployeeCnt | 0 | 9 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | 1 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 3265581 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 75601 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 75601 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 24928 |
| IRS990/FeesForServicesLegalGrp/ProgramServicesAmt | 0 | 1566 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 26494 |
| IRS990/FeesForServicesOtherGrp/FundraisingAmt | 0 | 3675 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 46728 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 1088424 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 1138827 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/ManagementAndGeneralAmt | 0 | 25547 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/TotalAmt | 0 | 25547 |
| IRS990/ForeignActivitiesInd | 0 | 1 |
| IRS990/ForeignCountryCd | 0 | CS |
| IRS990/ForeignCountryCd | 1 | SF |
| IRS990/ForeignFinancialAccountInd | 0 | 1 |
| IRS990/ForeignGrantsGrp/ProgramServicesAmt | 0 | 148241 |
| IRS990/ForeignGrantsGrp/TotalAmt | 0 | 148241 |
| IRS990/ForeignOfficeInd | 0 | 1 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 10 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 11 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 12 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 13 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 14 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 15 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 16 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 17 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 18 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 19 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 20 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 5 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 6 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 7 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 8 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 9 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 10 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 11 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 12 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 13 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 14 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 15 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 16 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 17 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 5 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 10 | 0 |
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| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 12 | 0 |
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| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 14 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 15 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 16 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 17 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 18 | 20770 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 19 | 11831 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 20 | 0 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | CHELSEA WARD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | RAFAEL MUNOZ-CARPENA |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | ERIN KUPREWICZ |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | SUSAN CORDELL |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | JAMES DALLING |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | KYLE HARMS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | BRYAN HEIDORN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | ANDRE KESSLER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | JAVIER MATEO-VEGA |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | GEORGE MIDDENDORF III |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | NATHAN MUCHHALA |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | MURIEL POSTON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | OSCAR ROCHA |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 13 | JOHN TOBIN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 14 | ALVARO UMANA |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 15 | TERRY VOGT |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 16 | MICHAEL WASSERMAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 17 | WILLIAM WCISLO |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 18 | JENNIFER KELLEY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 19 | MIGUEL MENDEZ |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 20 | ELIZABETH BRAKER |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 14 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 15 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 16 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 17 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 18 | 89760 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 19 | 86608 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 20 | 26667 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 14 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 15 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 16 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 17 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 18 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 19 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 20 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | DIRECTOR/ CHAIR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | DIRECTOR/ TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | DIRECTOR / SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | DIRECTOR (UNTIL JUNE 2025) |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | DIRECTOR, (FROM JUNE 2025) |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 13 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 14 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 15 | DIRECTOR, (UNTIL JULY 2024) |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 16 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 17 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 18 | CHIEF ADMINISTRATIVE OFFICER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 19 | CHIEF OPERATING OFFICER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 20 | DIR./PRES./CEO (FROM NOV. 24) |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/FormationYr | 0 | 1963 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 16 |
| IRS990/GovernmentGrantsAmt | 0 | 57919 |
| IRS990/GrantAmt | 0 | 73365 |
| IRS990/GrantsToDomesticIndividualsGrp/ProgramServicesAmt | 0 | 83097 |
| IRS990/GrantsToDomesticIndividualsGrp/TotalAmt | 0 | 83097 |
| IRS990/GrantsToIndividualsInd | 0 | 1 |
| IRS990/GrantsToOrganizationsInd | 0 | 0 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossReceiptsAmt | 0 | 9701537 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 0 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 1 |
| IRS990/IndependentVotingMemberCnt | 0 | 15 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990/InfoInScheduleOPartIXInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InsuranceGrp/FundraisingAmt | 0 | 8886 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 50917 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 37744 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 97547 |
| IRS990/InventoriesForSaleOrUseGrp/BOYAmt | 0 | 29124 |
| IRS990/InventoriesForSaleOrUseGrp/EOYAmt | 0 | 34593 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 209049 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 209049 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/InvestmentsOtherSecuritiesGrp/BOYAmt | 0 | 3217175 |
| IRS990/InvestmentsOtherSecuritiesGrp/EOYAmt | 0 | 3284830 |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 7971101 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 9561684 |
| IRS990/IRPDocumentCnt | 0 | 9 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 4369894 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 2615569 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 3448973 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 7818867 |
| IRS990/LegalDomicileStateCd | 0 | NC |
| IRS990/LoanOutstandingInd | 0 | 0 |
| IRS990/LobbyingActivitiesInd | 0 | 0 |
| IRS990/LocalChaptersInd | 0 | 0 |
| IRS990/MaterialDiversionOrMisuseInd | 0 | 0 |
| IRS990/MembersOrStockholdersInd | 0 | 1 |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | 1 |
| IRS990/MinutesOfGoverningBodyInd | 0 | 1 |
| IRS990/MissionDesc | 0 | THE ORGANIZATION FOR TROPICAL STUDIES, INC. (OTS) IS CHARTERED AS A NON PROFIT CORPORATION UNDER THE LAWS OF NORTH CAROLINA AND IS SUPPORTED BY A CONSORTIUM OF INSTITUTIONS OF HIGHER LEARNING IN NORTH, CENTRAL, AND SOUTH AMERICA, AUSTRALIA, AND SOUTH AFRICA. OTS'S PURPOSE IS TO SUSTAIN TROPICAL ECOSYSTEMS BY DRIVING SCIENTIFIC DISCOVERY AND KNOWLEDGE, BY ENRICHING HUMAN PERCEPTION OF NATURE, AND BY ENHANCING WORLDWIDE POLICY IN THE TROPICS. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 1 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 14588918 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 17510278 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | 2018118 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 3791548 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 4624134 |
| IRS990/NoncashContributionsAmt | 0 | 927700 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OccupancyGrp/FundraisingAmt | 0 | 4925 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 22273 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 847317 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 874515 |
| IRS990/OfficeExpensesGrp/FundraisingAmt | 0 | 7123 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 18731 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 81865 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 107719 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 656162 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 616702 |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherEmployeeBenefitsGrp/FundraisingAmt | 0 | 54338 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 158681 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 859442 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 1072461 |
| IRS990/OtherExpensesGrp/Desc | 0 | MATERIALS AND SUPPLIES |
| IRS990/OtherExpensesGrp/Desc | 1 | EQUIPMENT & FURNISHING |
| IRS990/OtherExpensesGrp/Desc | 2 | TOUR GUIDES |
| IRS990/OtherExpensesGrp/Desc | 3 | LICENSES, PERMITS, ENTR |
| IRS990/OtherExpensesGrp/FundraisingAmt | 0 | 2654 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 1 | 1498 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 2 | 1196 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 3 | 2681 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 12058 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 1 | 11610 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 2 | 683 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 3 | 15364 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 362076 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 173585 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 48929 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 3 | 11389 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 376788 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 186693 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 50808 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 29434 |
| IRS990/OtherLiabilitiesGrp/BOYAmt | 0 | 255372 |
| IRS990/OtherLiabilitiesGrp/EOYAmt | 0 | 84679 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 0 | 900099 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | MISCELLANEOUS |
| IRS990/OtherRevenueMiscGrp/ExclusionAmt | 0 | 348 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 348 |
| IRS990/OtherRevenueTotalAmt | 0 | 348 |
| IRS990/OtherSalariesAndWagesGrp/FundraisingAmt | 0 | 219371 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 281687 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 2276244 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 2777302 |
| IRS990/OwnWebsiteInd | 0 | X |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/PayrollTaxesGrp/FundraisingAmt | 0 | 2086 |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 7011 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 32989 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 42086 |
| IRS990/PensionPlanContributionsGrp/FundraisingAmt | 0 | 1045 |
| IRS990/PensionPlanContributionsGrp/ManagementAndGeneralAmt | 0 | 3513 |
| IRS990/PensionPlanContributionsGrp/ProgramServicesAmt | 0 | 16531 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 21089 |
| IRS990/PledgesAndGrantsReceivableGrp/BOYAmt | 0 | 21368 |
| IRS990/PledgesAndGrantsReceivableGrp/EOYAmt | 0 | 2389 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 26502 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 52657 |
| IRS990/PrincipalOfficerNm | 0 | ELIZABETH BRAKER |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 900099 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 1 | 900099 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 2 | 900099 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | FACILITIES FEES |
| IRS990/ProgramServiceRevenueGrp/Desc | 1 | TUITION AND FEES |
| IRS990/ProgramServiceRevenueGrp/Desc | 2 | MEMBER DUES |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 2433696 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 1 | 1059290 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 2 | 56261 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 2433696 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 1 | 1059290 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 2 | 56261 |
| IRS990/ProgSrvcAccomActy2Grp/Desc | 0 | FIELD STATIONS: THE ORGANIZATION OPERATES THREE BIOLOGICAL FIELD STATIONS IN DIVERSE ECOLOGICAL ZONES OF COSTA RICA (LA SELVA, LAS CRUCES, AND PALO VERDE) AND ONE IN KRUGER NATIONAL PARK, SOUTH AFRICA. THESE FIELD STATIONS ARE MAINTAINED TO FACILITATE BIOLOGICAL RESEARCH AND TO CONDUCT EDUCATIONAL PROGRAMS. |
| IRS990/ProgSrvcAccomActy2Grp/ExpenseAmt | 0 | 2950132 |
| IRS990/ProgSrvcAccomActy2Grp/GrantAmt | 0 | 155756 |
| IRS990/ProgSrvcAccomActy2Grp/RevenueAmt | 0 | 1087420 |
| IRS990/ProgSrvcAccomActy3Grp/Desc | 0 | EDUCATIONAL PROGRAMS: THE ORGANIZATION CONDUCTS A NUMBER OF EDUCATIONAL PROGRAMS, INCLUDING GRADUATE COURSES FOR ACADEMIC CREDIT AND UNDERGRADUATE SEMESTER- ABROAD PROGRAMS FOR ACADEMIC CREDIT. THE ORGANIZATION HAS OFFERED MID-CAREER PROFESSIONAL TRAINING FOR U.S. AND LATIN AMERICAN OFFICIALS AND POLICY- MAKERS, SHORT EXCURSIONS LED BY SCIENTISTS FOR MEMBERS OF THE PUBLIC IN COSTA RICA, AND PROGRAMS FOR PRIMARY AND SECONDARY SCHOOL TEACHERS. |
| IRS990/ProgSrvcAccomActy3Grp/ExpenseAmt | 0 | 1066966 |
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