Nico Moiroux
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nmoiroux.bsky.social
Nico Moiroux
@nmoiroux.bsky.social
2.7K followers 600 following 93 posts
Research scientist · Mosquito 🦟 and Vector-borne disease Ecology · MIVEGEC @ird-fr.bsky.social 🇫🇷 · Pôle de Zoologie Médicale @ Institut Pasteur Dakar 🇸🇳
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nmoiroux.bsky.social
It's mosquitoes all souls day... Some are visiting cemeteries.
A living mosquito in a collection box with pinned individuals
November 2, 2025 at 10:02 AM
nmoiroux.bsky.social
#ants 🇸🇳
October 19, 2025 at 6:59 PM
nmoiroux.bsky.social
📸 This one is very beautiful 🤩.

🦟 Eretmapodites sp. (likely chrysogaster), Casamance, Sénégal 🇸🇳.

All species in the genus are Afrotropical.

#mosquito #entomology 🧪
An mosquito belonging to the Eretmapodites Genus with nice ornaments (yellow thorax, line of silvery scale from head abdomen, abdomen black with lateral patch of silvery scales)
October 8, 2025 at 12:30 PM
nmoiroux.bsky.social
This article was peer-reviewed & recommended in @peercommunityin.bsky.social, a platform promoting free, transparent and open peer review before journal publication.

We’re grateful to @jessieabbate.bsky.social and the reviewers for their constructive feedback!
September 29, 2025 at 9:34 AM
nmoiroux.bsky.social
🦟 We model the impact of attractive, inert, and deterrent ITNs (insecticide-treated nets) on malaria transmission.
Data & model: buff.ly/MD5xO99

Key result 👉 Attractive ITNs may reduce malaria transmission more effectively than deterrent ones, even under physiological or behavioral resistance.
September 29, 2025 at 9:34 AM
nmoiroux.bsky.social
🦜Ploceus brachypterus
📣🇨🇵 Tisserin pirate 🏴‍☠️
📣🇬🇧 Olive-naped weaver
📍 Ziguinchor, Sénégal 🇸🇳
September 19, 2025 at 7:18 PM
nmoiroux.bsky.social
🚨 New publication!
Our RCT in 🇧🇫 Burkina Faso & 🇨🇮 Côte d’Ivoire shows that adding either non-pyrethroid indoor residual spraying (IRS) or intensive behaviour change communication (BCC) to LLINs reduces #malaria burden.

In @lancetgh.bsky.social :
doi.org/10.1016/S221...

#GlobalHealth #VectorControl
First page of the article entitled "Efficacy of non-pyrethroid indoor residual spraying or intensive behaviour change communication in combination with long-lasting insecticidal nets for malaria control in west Africa: a pragmatic, cluster-randomised, controlled trial"
August 21, 2025 at 9:57 AM
nmoiroux.bsky.social
Spotted in the wild: 🐜 likely Camponotus sericeus 🤔

📍Casamance, Senegal 🇸🇳

#Entomology #Ants #Camponotus #Casamance #Senegal
April 26, 2025 at 9:20 AM
nmoiroux.bsky.social
📢 Offre de #thèse en modélisation écologique !
Diversité et distribution des #moustiques en #AfriqueDeLOuest 🌍🦟🌐

📍 #Sénégal
🎯 candidatures Sénégal et sous-région

📅 Poste à pourvoir rapidement !
📎 buff.ly/o1Xi0H1

Merci de partager🙏

#Modélisation #Ecologie #IRD #Biodiversité #
April 24, 2025 at 12:12 PM
nmoiroux.bsky.social
🧵2/ What’s inside?

✔️ calculate_Exp() — Compute hourly exposure
✔️ summarise_exposure() — Summarize exposure statistics daily or for a time window
✔️ plot_exposure() — Stacked exposure plot (net users)
✔️ plot_behaviors() — Dual-axis plot of human & mosquito activity
April 22, 2025 at 10:48 AM
nmoiroux.bsky.social
🧵1/ Introducing ExpBites, a lightweight #rstats 📦 to analyze mosquito biting exposure according to hourly activities and locations of human and #mosquitoes. Built for modeling true expected #bednet efficacy.🦟⛺️

📦 GitHub: buff.ly/tImDQdv
🎚️ Shiny app: buff.ly/t9oMOwv

#malaria #anopheles
April 22, 2025 at 10:48 AM
nmoiroux.bsky.social
4156 new #chikungunya cases on #Reunion island (week 11). That is 44% higher than the 2888 cases the week before.
March 26, 2025 at 5:39 PM
nmoiroux.bsky.social
#Chikungunya epidemic on Reunion island. ~3000 confirmed cases and 2 deaths during week 10 (3-9 Mar.)
#Aedes aegypti
Weekly number of Chikungunya confirmed cases on Reunion island (2025) showing an exponential trajectory. Data from the Regional Health Agency. Map of Chikungunya cases on Reunion island during week 10 of 2025.
March 21, 2025 at 9:23 AM
nmoiroux.bsky.social
🦟 The Anopheles gambiae Complex is more than a group of sibling species—it’s a key player in malaria transmission across Africa. With diverse ecologies and behaviors, its members adapt to unique habitats, making them formidable vectors of malaria parasites. 🌍

(4/4)

#Malaria #VectorBiology
Picture of an anopheles gambiae © IRD - Nil Rahola
December 19, 2024 at 12:03 PM
nmoiroux.bsky.social
... the last one, discovered in 🌍 La Lopé National Park 🐘 🐒 in Gabon 🇬🇦 and formally registered in 2024:

A. fontenillei @nil-rahola.bsky.social , Paupy & Ayala 2024

➡️ https://buff.ly/4fu6rpx
➡️ https://buff.ly/4fSvFxx

(3/4) 🧵

#Entomology
Par FX — Lopé National Park river panorama.jpg, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=10455724
December 19, 2024 at 12:03 PM
nmoiroux.bsky.social
A. merus Dönitz 1902,
A. melas Theobald, 1903,
A. arabiensis Patton, 1905,
A. quadriannulatus Theobald, 1911 ,
A. bwambae White, 1985,
A. comorensis Brunhes, Le Goff & Geoffroy 1997,
A. amharicus Hunt, Wilkerson & Coetzee 2013,
A. coluzzii Coetzee & Wilkerson, 2013 and... 🥁 🥁

(2/4) 🧵
Geographic distribution of members of the A. gambiae complex. A: A. arabiensis (red); B: A. gambiae s.s. (green); C: A. melas (Blue), A. merus (orange), and A. bwambae (cyan); D: A. quadriannulatus (former species A) (yel‐ low), A. amharicus (former A. quadriannulatus B) (magenta) and A. comorensis (cyan circle). In: Speciation in Anopheles gambiae — The Distribution of Genetic Polymorphism and Patterns of Reproductive Isolation Among Natural Populations Written By Gregory C. Lanzaro and Yoosook Lee
December 19, 2024 at 12:03 PM
nmoiroux.bsky.social
📜 Bridging centuries of #Mosquito #Taxonomy 🦟
Sharing #Anopheles gambiae original description by Giles (1902). Extract below ⬇️

It is nominotypical for the Gambiae Complex that include 9 other sp. (1/4) 🧵

#Entomology #malaria 🧪

🔎 Explore the source document:
➡️ https://buff.ly/3ArZHJO
A screenshot of the original description of An. gambiae by Giles (1902)
December 19, 2024 at 12:03 PM
nmoiroux.bsky.social
🙏 Let’s honor the legacy of the researchers and techs behind this milestone and the transformative impact of pyrethroids-treated nets on #globalhealth. I had the chance to meet F. Darriet and V. Robert, that were also prolific writers 📚 ⬇️, before their quiet retirement from @ird-fr.bsky.social .
December 2, 2024 at 10:29 AM
nmoiroux.bsky.social
🔬 The 1983 study was the first field trial to show the impressive efficacy of permethrin-treated nets against malaria vectors, even when perforated. These findings (published in 1984) were pivotal in establishing insecticide-treated nets (ITNs) as a cornerstone of malaria prevention​...
December 2, 2024 at 10:29 AM
nmoiroux.bsky.social
🕰️ Insecticide-treated mosquito nets were sporadically tested from the 1930s, with limited success, until the late 1970s, when Hamon and Quélennec at WHO provided critical impetus for research into safer and more effective pyrethroids, setting the stage for Darriet et al.'s works...
Moustiquaire imprégnée d’insecticide à longue durée au Bénin © IRD - Marc Egrot
December 2, 2024 at 10:29 AM
nmoiroux.bsky.social
⏰ Every morning at dawn (even weekends!), this beauty comes to tap on the window: Halcyon malimbica, the blue-breasted tree kingfisher (🇫🇷 Martin-chasseur à poitrine bleue). Unlike their English name suggests, Halcyoninae are not specialist fishers. 📍Casamance, #Senegal 🇸🇳.

#Birds
Picture of a tree kingfisher taken from my window.
November 21, 2024 at 11:03 AM
nmoiroux.bsky.social
(2/2) 🇫🇷 In the official French translation by Edmond Barbier (1875), this passage takes on a bit more alarming tone ⚠️ 😅.
Back to English: "A mere glance cast upon what the complete catalog of the future will be would be enough to forever shatter an entomologist’s rest."

#Entomology #Darwin 🧪
Un simple coup d'œil, jeté sur ce que sera le catalogue complet de l'avenir, suffirait à détruire à jamais le repos d'un entomologiste. Front page of the original French translation.
November 19, 2024 at 2:03 PM
nmoiroux.bsky.social
📜 Darwin’s wisdom for tropical entomologists 🦟 🦋 (1/2). In: "The Voyage of the Beagle" (1839), Chapter II: Rio de Janeiro:

"It is sufficient to disturb the composure of an entomologist's mind, to look forward to the future dimensions of a complete catalogue."

🧵
#Entomology #Darwin 🧪
HMS Beagle in the Straits of Magellan. Reproduction of frontispiece by Robert Taylor Pritchett from the first Murray illustrated edition, 1890: HMS Beagle in the Straits of Magellan at Monte Sarmiento in Chile. The cabinets of Europe can, as yet, boast only of the larger species from tropical climates... sufficient to disturb the composure of an entomologist’s mind, to look forward to the future dimensions of a complete catalogue.
November 19, 2024 at 2:03 PM
nmoiroux.bsky.social
The (good!) reason why he published here:
www.nature.com/articles/151...
WHEN eastern Europe has been devastated and its indigenous culture suppressed, it is particularly gratifying to find a band of refugee professors and lecturers combining to keep the stream of their learning from drying up. Polish Science and Learning (No. 2, February 1943, Oxford University Press) is the second of a series of booklets prepared by Polish scholars in Great Britain in collaboration with their British colleagues. An article by Charles Elton on “ The Changing Realms of Animal Life” is contributed as “something new towards maintaining the concept of international co-operation in science after the war is over”,
November 16, 2024 at 9:23 PM
nmoiroux.bsky.social
This fruit picker, bought at the supermarket in Ziguinchor, Senegal 🇸🇳 , is a handy tool for collecting #mosquito larvae from large water bodies like rice fields and pond margins.
November 13, 2024 at 12:13 PM