Tom Diserens
@tomdiserens
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Wildlife biologist in Europe’s last wilderness at @mriBialowieza Wolf & beaver ecology. Tour operator in Białowieża Forest
Bialowieza, Poland
Joined February 2022
My colleagues' new work debunks the myth that wolves are losing their fear of humans. In response to hearing human voices, wolves reacted 80% of the time by fleeing; only ~30% fled at control sounds. Fear isn’t gone — it's deeply rooted and persists in modern wolves.
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New research from my colleagues shows wolves aren’t losing their fear of humans 🐺❌👣 They still flee at human voices and stick to the night — myth of “fearless wolves” simply isn't true.
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China planted forests the size of Japan 🌳 Sounds like a climate win — but many are tree farm monocultures with low biodiversity and limited carbon benefit. Planting trees ≠ restoring forests. ❌
🇨🇳 Japanese media: China forested an area the size of Japan in only 20 years.
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This quiet pond hides a violent past—and the wolf knows it. Earlier this year, wolves hunted the beavers here, but the dam remains, holding water that now sustains the forest… and even its predators. A stark reminder of how tightly life and death are linked in nature
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A month ago I met this moose in the meadows of Białowieża 🌿🦌 Not long ago, hunting had nearly wiped them out. A ban saved the species and today ~30,000 roam Poland. Today I learned the agriculture ministry has applied to bring hunting back — putting vulnerable herds at risk
Minister Rolnictwa i Rozwoju Wsi Stefan Krajewski (PSL) wnioskuje o zdjęcie moratorium na zabijanie łosi. Łoś jest na liście gatunków łownych, ale od 2001 roku obowiązuje moratorium na odstrzał tego gatunku. Łoś w Polsce wskutek polowań znalazł się w dramatycznej sytuacji. Żyło u
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Imagine forests of high conservation value being logged before anyone has a chance to protect them. Polish law allows logging without approved mgmt plans under certain conditions. NGOs argue this breaches EU rules. Good on @PracowniaBystra for asking @EU_Commission to step in.
Składamy skargę do @EU_Commission Domagamy się wprowadzenia odpowiedzialności za pozyskiwanie drewna bez zatwierdzonego PUL jak za 🟥kradzież drewna z lasu! Leśnicy po raz kolejny realizują politykę faktów dokonanych: wycinają, by nie było czego chronić. 📂
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The ecological impact of wolf reintroduction to Britain. A wolf ecologist’s view🧵. Wolf reintroduction to Britain is again a hot topic in the media. So I want to share what we know about the wolf’s ecological impacts in a model European system, Białowieża Primeval Forest.
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🌲 Only a few spots left on our end-September 5-day tour of Białowieża Forest — Europe’s last old-growth forest. Not a safari, but a deep dive into how nature works. Led by scientists, we’ll explore how beavers, wolves, and ancient trees shape this living laboratory. Link below⬇️
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W 2026 finansowanie @NCN_PL wzrośnie o 0.2% … Obligacje pójdą na ratowanie budżetu a nie na inwestycje w naukę… To jest już działanie na szkodę.. @MNiSW_GOV__PL @MarcinKulasek @Domanski_Andrz @MF_GOV_PL Można zapomnieć o waloryzacji pensji w grantach, konkursach high risk
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❗️BOOM❗️ PiS be like: 2016 - Stop Wiatrakom! 2020 - Wiatraki są fajne, możemy się na nich polansować 👇 2025 - "precz z wiatrakami, to złe Niemce są..." Wniosek: 1️⃣ PiS jest populistyczną partią antypaństwową i antyrozwojową. 2️⃣PiS nie ma żadnej spójnej wizji rozwoju Polski.
Łapiemy wiatr w żagle. Turbina 2MW w PW Koźmin Pilot. Po oględzinach gondoli - zjazd ze 108 m. Nowelizację ustawy wiatrakowej uznaję za otwartą 🌬♻️
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𝐀 𝐧𝐨𝐧 𝐚𝐠𝐠𝐫𝐞𝐬𝐬𝐢𝐨𝐧 𝐩𝐚𝐜𝐭 𝐞𝐱𝐢𝐬𝐭𝐬 𝐛𝐞𝐭𝐰𝐞𝐞𝐧 𝐛𝐞𝐚𝐯𝐞𝐫 𝐚𝐧𝐝 𝐫𝐚𝐜𝐜𝐨𝐨𝐧 𝐝𝐨𝐠 𝐜𝐨𝐮𝐩𝐥𝐞𝐬? Here's a cool interaction between these two species. The film shows they're both aware of each other's presence. Aside from displaying caution, neither
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Still a couple of spaces left on our autumn tour where you can learn about large carnivore, old growth forest and beaver ecology.
If you want to experience beautiful old-growth forest like on this video, check out the tour below :) spaces still available for the September edition
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If you want to experience beautiful old-growth forest like on this video, check out the tour below :) spaces still available for the September edition
We still have spaces on our end-September Białowieża Forest tour. We will experience the best-preserved forest in lowland Europe, while focusing on hot topics in conservation: natural forest, wolf, bison and beaver ecology. Expect a cross between a traditional wildlife tour
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'Brazil passes ‘devastation bill’ that drastically weakens environmental law' Disastrous day in the war on nature as Brazilian agriculture and logging interests get their way, again. We have one home. We're destroying it. We must be mad. https://t.co/tQeLPfnKEd
theguardian.com
President has 15 days to approve or veto legislation that critics say will lead to vast deforestation and destruction of Indigenous communities
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