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Reposted by Thomas Perrot

Emily May @emtomology.bsky.social · 26/04/2026

New study finds a consistent negative association between insecticide use and insectivorous bird populations, based on 15 years of data from 2783 sampling plots in France. Less food? Fewer birds. 🐛🐦 www.sciencedirect.com/science/arti...

sciencedirect.com

Declines in insectivorous bird abundance are related to increasing agricultural insecticide use

Pesticide use is suspected to contribute to bird population declines in Europe, but few studies link long-term pesticide trends to bird population abu…

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Reposted by Thomas Perrot

Jeroen van der Sluijs @jeroenvandersluijs.bsky.social · 02/05/2026

Declines in insectivorous bird abundance are related to increasing agricultural insecticide use New study analysed 15 years of bird monitoring data across 2783 sites in France and found negative association between insecticide use and insectivorous birds. www.sciencedirect.com/science/arti...

sciencedirect.com

Declines in insectivorous bird abundance are related to increasing agricultural insecticide use

Pesticide use is suspected to contribute to bird population declines in Europe, but few studies link long-term pesticide trends to bird population abu…

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Reposted by Thomas Perrot

PestInfos @pestinfos.bsky.social · 20/05/2026

Alors que des projets de loi envisagent de réintroduire sous conditions certains néonicotinoïdes interdits en France, les données scientifiques continuent de pointer le rôle potentiel des insecticides dans le déclin des oiseaux insectivores dans les campagnes pestinfos.blogspot.com/2026/05/quan...

pestinfos.blogspot.com

Quand les insecticides affament les oiseaux des campagnes

Depuis plusieurs décennies, les oiseaux des milieux agricoles déclinent partout en Europe. Une nouvelle étude menée en France apporte un éc...

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Thomas Perrot @tperrot.bsky.social · 20/05/2026

🚨 New study published in AEE on the link between insecticide use and bird declines in France 🐦 Strong association between insecticide use and the population dynamics of insectivorous birds 👉 Where insecticide use increased, insectivorous bird populations declined and and vice versa urlr.me/Yt3rRx

urlr.me

Declines in insectivorous bird abundance are related to increasing agricultural insecticide use

Pesticide use is suspected to contribute to bird population declines in Europe, but few studies link long-term pesticide trends to bird population abu…

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Thomas Perrot @tperrot.bsky.social · 29/09/2025

⚠️ Takeaway: ✅ Imidacloprid harms insectivorous birds (also shown in 🇺🇸 & 🇳🇱). ❗️But banning a pesticide alone isn’t enough—habitat restoration and ecosystem recovery actions are essential to help insects 🐞 and birds 🐦 bounce back.

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Thomas Perrot @tperrot.bsky.social · 29/09/2025

📊 Key finding: Before the ban, sites without imidacloprid hosted 12.7% more insectivorous birds than treated sites. After the ban, the gap narrowed to 9% → a slight recovery, but far from a full population rebound

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Thomas Perrot @tperrot.bsky.social · 29/09/2025

We studied the impact of imidacloprid on 57 sedentary bird species across 🇫🇷 before (2013–2018) and after (2019–2022) its ban. 🐦🌱

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Thomas Perrot @tperrot.bsky.social · 29/09/2025

🚨 New paper in Environmental Pollution “Weak recovery of insectivorous bird populations after ban of neonicotinoid in France, hinting at lasting impacts” 👉 www.sciencedirect.com/science/arti... / urlr.me/kHNUah

sciencedirect.com

Weak recovery of insectivorous bird populations after ban of neonicotinoids in France, hinting at lasting impacts

Neonicotinoids are expected to play a significant role in the decline of bird populations through their adverse effects on food resources (primarily i…

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Thomas Perrot @tperrot.bsky.social · 08/09/2025

These results were made possible thanks to the support of @frbiodiv.bsky.social

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Thomas Perrot @tperrot.bsky.social · 08/09/2025

Why it matters 👉 TAT identifies the most toxic molecules + hotspots where biodiversity policies should focus. Recent bans (e.g. diquat, neonicotinoids) reduced pressures, but impacts on biodiversity still need to be confirmed. 🌍 #biodiversity #TAT

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Thomas Perrot @tperrot.bsky.social · 08/09/2025

Our findings: ⬇️ Pressure decreased for 4 groups (terrestrial vertebrates, pollinators, soil organisms, aquatic plants) ⬆️ Increased for 1 (aquatic invertebrates) ➡️ Stable for 3 (fish, terrestrial arthropods, terrestrial plants) Spatially, highest pressures = North & West France.

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Thomas Perrot @tperrot.bsky.social · 08/09/2025

🚨 New study out in Journal of Hazardous Materials (urlr.me/WCSNJm): we tracked pesticide pressures across France using the new Total Applied Toxicity (TAT) index. Unlike older indicators, TAT accounts for both pesticide amounts and their toxicity. 🌱🐝🐟 #pesticides

urlr.me

Temporal trends in pesticide pressure differ among non-target species groups but show spatially consistent patterns across France

The negative impacts of pesticides on biodiversity, ecosystem functioning, and human health are broadly documented and numerous policies have been pro…

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Reposted by Thomas Perrot

Adrien Rusch @arusch.bsky.social · 21/08/2025

📣 🪲 Check out this paper led by @tperrot.bsky.social, which provides a clear demonstration that the intensive use of pesticides can be more detrimental than beneficial for crop production due to their negative impacts on natural pest control.

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Thomas Perrot @tperrot.bsky.social · 30/07/2025

Nouvelle publication dans Proceedings B: urlr.me/qZ39CJ. Nous montrons que l’utilisation d'insecticides réduit les rendements de colza au-delà d’un seuil de 36g/ha. La raison, les insecticides réduisent la régulation naturelle entraînant une augmentation des insectes ravageurs et des adventices !

urlr.me

Crop yield loss under high insecticide regime driven by reduction in natural pest control | Proceedings of the Royal Society B: Biological Sciences

Current agricultural pest management mainly relies on the use of synthetic insecticides with strong adverse impacts on the environment or humans. Decreasing crop productivity in the case of pesticide-...

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