Julien Piolain Curator

Joined: Apr 3, 2019 Last Active: Sep 24, 2026 iNaturalist

French generalist naturalist | 26 years old | He/him | 🌈

Interested in the whole living world, wherever I go! 😁

📌 In French Guiana (❤️) since 2020
Coming from the northwest of Paris
Lived shortly in Québec (2019) and in southern France (2019-2020 and 2021-2022)

👨‍🎓 Master's degree in ecology & biodiversity management in Montpellier University (french mediterranean coast)

💼 Studying French Guiana's biodiversity and working for its protection, first on behalf of an environmental conservation association, GEPOG, then for a consultancy firm, AGE, and from 2025 onwards as a freelancer.

🧐 Expertise on birds and butterflies in French Guiana, but also knowledge of many other taxa in this area. I was mainly into birds, moths, butterflies, dragonflies and orthoptera in the WP. Strong interest in botany in both areas recently, which is growing stronger every year!

@ Feel free to tag me on your data if you want to add a species into iNat system, to have my opinion about your IDs, of for anything else! ✌️

Some links: [ebird profile] [Faune-Guyane profile] [Cocheurs.fr profile] [Researchgate profile] [YouTube channel]

[My global naturalist data summary]

[My new species for French Guiana] [My new species for iNaturalist] [My rarest species on iNat] [My longest iNat streaks]

[My missing species in French Guiana] [My missing species in France] [My missing species in WP]

[Specimens of my entomological reference collection]

iNat stats: [2022] [2023] [2024] [2025]

If you want to help me managing data in French Guiana, you can find data with unresolved disagreements that need help to reach Research Grade [here]

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Please note that I only use iNaturalist to store my naturalist pictures, to get some advice and feedback on IDs I'm not confident about, and when a database that offers the possibility to share naturalist data without picture doesn't exist in the place I am for a given taxa. As a consequence most of my naturalist data are on other databases than iNat. With all theses databases pulled together, I've entered >198.000 sightings of >11.000 species at the end of 2025 - see my global naturalist summary in the "links" section above 😁

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Main current projects:

  • Writing of a guide to the Hesperiidae Eudaminae of French Guiana with @ninopage
  • Creation of a scientific journal dedicated to naturalism in French Guiana, to facilitate the publication of scientific articles about the region's biodiversity
  • Revival of the French Guianan Botanical Society
  • Creation of a new naturalist database for French Guiana, complementing Faune-Guyane and enabling the entry of data on arthropods without photos
  • Surveys of little-known areas to improve the knowledge of biodiversity in French Guiana and in the neighbouring areas
  • Writing of diverse papers and reports about French Guianan biodiversity, especially birds and butterflies

Current noticeable actions on iNat:

  • Management of flora and butterfly data in French Guiana via the “Flore de Guyane” and “Papillons de jour de Guyane” projects
  • Co-organization of the City Nature Challenge in French Guiana (see >here< the results of the outstanding 2025 edition!)
  • Daily validation of naturalist data produced in French Guiana, for taxa that I am familiar with
  • Review of all ‘Lepidoptera sp.’ data from French Guiana to classify them at the family level or at a more precise taxonomic level. More than 7.000 data to be processed in total, 1.300 remaining (September 2026).
  • Addition of all the missing taxa of American Hesperiidae to the iNaturalist system based on the list on the “Butterflies of America” website (~280 done and ~1270 remaining, sept 26) and addition of French Guianan taxa (fauna and flora) that are missing in the iNat system, depending on the opportunities
  • Adding my old observations to iNaturalist so I can use it as a personal "Pokédex" by 2026!

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It's always a pleasure for me to exchange with other naturalists, whoever they may be, so don't hesitate to contact me via the iNat messaging system if you have any question! 😊 Otherwise, here's my e-mail address: [email protected]

N.B. : it is my wish that all of the content I have contributed to iNaturalist (photos, IDs, comments, activity as a curator, etc.) remain on the site in the event of my death.

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