Native Bees as Key Pollinators of Açaí (Euterpe oleracea) in the Central Amazon

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Abstract The açaí ( Euterpe oleracea ) is a key economic resource in the Amazon region. Despite this, studies on its floral visitors in Amazonas state remains scarce, outdated, lack species identifications and inferences about their role as pollinators. This study aimed to identify the floral visitor community and potential pollinators of an açaí crop in the central Amazon. From August 2018 to May 2019, we monitored the visits on 14 pistillate and 11 staminate inflorescences from 20 plants and calculated two indices: relative importance and pollen-transport efficiency, to identify the main potential pollinators. We collected 1,656 insects from 111 species, mainly stingless bees (45.77%) and other native bees (33.32%). Ranking values identified Trigona williana Friese and Partamona ferreirai Pedro & Camargo as the principal contributors to pollen flow, followed by Trigona dallatorreana Friese and Frieseomelitta trichocerata Moure. This ranking method represents a key innovation of our study. Using these indices, we identify species contributing most to pollen flow while retaining information on the importance and efficiency of all taxa. Our findings reinforce the role of native bees in açaí pollination and provide potential target species for regional management.
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Native Bees as Key Pollinators of Açaí (Euterpe oleracea) in the Central Amazon | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Native Bees as Key Pollinators of Açaí (Euterpe oleracea) in the Central Amazon João Victor Ladislau, Juliana Hipólito, Eduardo Freitas Moreira, and 3 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-8367450/v1 This work is licensed under a CC BY 4.0 License Status: Under Review Version 1 posted 5 You are reading this latest preprint version Abstract The açaí ( Euterpe oleracea ) is a key economic resource in the Amazon region. Despite this, studies on its floral visitors in Amazonas state remains scarce, outdated, lack species identifications and inferences about their role as pollinators. This study aimed to identify the floral visitor community and potential pollinators of an açaí crop in the central Amazon. From August 2018 to May 2019, we monitored the visits on 14 pistillate and 11 staminate inflorescences from 20 plants and calculated two indices: relative importance and pollen-transport efficiency, to identify the main potential pollinators. We collected 1,656 insects from 111 species, mainly stingless bees (45.77%) and other native bees (33.32%). Ranking values identified Trigona williana Friese and Partamona ferreirai Pedro & Camargo as the principal contributors to pollen flow, followed by Trigona dallatorreana Friese and Frieseomelitta trichocerata Moure. This ranking method represents a key innovation of our study. Using these indices, we identify species contributing most to pollen flow while retaining information on the importance and efficiency of all taxa. Our findings reinforce the role of native bees in açaí pollination and provide potential target species for regional management. Stingless bees Pollination Inflorescences Native bees Euterpe oleracea Full Text Cite Share Download PDF Status: Under Review Version 1 posted Reviewers agreed at journal 08 Jan, 2026 Reviewers invited by journal 08 Jan, 2026 Editor invited by journal 23 Dec, 2025 Editor assigned by journal 18 Dec, 2025 First submitted to journal 16 Dec, 2025 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. 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Despite this, studies on its floral visitors in Amazonas state remains scarce, outdated, lack species identifications and inferences about their role as pollinators. This study aimed to identify the floral visitor community and potential pollinators of an a\u0026ccedil;a\u0026iacute; crop in the central Amazon. From August 2018 to May 2019, we monitored the visits on 14 pistillate and 11 staminate inflorescences from 20 plants and calculated two indices: relative importance and pollen-transport efficiency, to identify the main potential pollinators. We collected 1,656 insects from 111 species, mainly stingless bees (45.77%) and other native bees (33.32%). Ranking values identified \u003cem\u003eTrigona williana\u003c/em\u003e Friese and \u003cem\u003ePartamona ferreirai\u003c/em\u003e Pedro \u0026amp; Camargo as the principal contributors to pollen flow, followed by \u003cem\u003eTrigona dallatorreana\u003c/em\u003e Friese and \u003cem\u003eFrieseomelitta trichocerata\u003c/em\u003e Moure. This ranking method represents a key innovation of our study. Using these indices, we identify species contributing most to pollen flow while retaining information on the importance and efficiency of all taxa. Our findings reinforce the role of native bees in a\u0026ccedil;a\u0026iacute; pollination and provide potential target species for regional management.\u003c/p\u003e","manuscriptTitle":"Native Bees as Key Pollinators of Açaí (Euterpe oleracea) in the Central Amazon","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2026-01-12 10:20:40","doi":"10.21203/rs.3.rs-8367450/v1","editorialEvents":[{"type":"communityComments","content":0},{"type":"reviewerAgreed","content":"","date":"2026-01-08T14:48:57+00:00","index":0,"fulltext":""},{"type":"reviewersInvited","content":"","date":"2026-01-08T11:44:34+00:00","index":"","fulltext":""},{"type":"editorInvited","content":"Neotropical Entomology","date":"2025-12-23T19:24:02+00:00","index":"","fulltext":""},{"type":"editorAssigned","content":"","date":"2025-12-18T20:47:22+00:00","index":"","fulltext":""},{"type":"submitted","content":"Neotropical Entomology","date":"2025-12-16T05:17:31+00:00","index":"","fulltext":""}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"neotropical-entomology","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"nent","sideBox":"Learn more about [Neotropical Entomology](https://www.springer.com/journal/13744)","snPcode":"13744","submissionUrl":"https://www.editorialmanager.com/nent/default2.aspx","title":"Neotropical Entomology","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"em","reportingPortfolio":"Springer Hybrid","inReviewEnabled":true,"inReviewRevisionsEnabled":false}}],"origin":"","ownerIdentity":"8c225958-d092-4c77-8740-57d8480644cc","owner":[],"postedDate":"January 12th, 2026","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"under-review","subjectAreas":[],"tags":[],"updatedAt":"2026-03-10T17:16:23+00:00","versionOfRecord":[],"versionCreatedAt":"2026-01-12 10:20:40","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-8367450","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-8367450","identity":"rs-8367450","version":["v1"]},"buildId":"XKTyCvWXoU3ODBz1xrDgd","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}

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