🌍 The 9 planetary boundaries show: The biosphere is under the greatest threat. 🚨 Species extinction weakens the climate, ecosystems and resilience. Protecting biodiversity is vital for survival. 👉 Find out more in our #newsletter: rebrand.ly/newsletter-lbd #Biodiversity #PlanetaryBoundaries

A common freshwater fish seems to be attracted to caddisfly cases containing microplastics and consumes their cases (whole or in part) during predation. Incorporation of plastic in larval caddisfly cases leads to another route of transfer into aquatic food webs. www.sciencedirect.com/science/arti...

Our research group just published a study in Nature on how fish biodiversity in U.S. rivers and streams has been changing over the past 27 years (1993–2019). The results show sharply diverging trends depending on historic and changing water temperature. 🧵 rdcu.be/eH0l8

Quote: "Endemic ants, finely adapted to local conditions, are now losing ground to invasive species, which thrive in disturbed habitats created by agriculture and urbanization." www.onegreenplanet.org/news/fijis-a...

Last week our field team investigated the effects of low water levels in the St Lawrence River. Shown left to right: @briellecomartin.bsky.social, @ivanakomendic.bsky.social & @tjcolvin.bsky.social Joining them was @ecoinvasions.bsky.social. The land on which they're standing should be under water.

"Science is different to all other systems of thought because you don't need faith in it. You can check that it works." #MedSky Brian Cox

There are times when this feels like an appropriate response...

Old interview with Naomi Oreskes, who reminds us that "scientific consensus is the best indicator of truth we have". She notes that rejection of science is not correlated with someone's level of education, but rather w their ideology. More apparent now than ever. www.larecherche.fr/histoire-des...

We are seeing substantially reduced water levels on the St Lawrence River, extensive shoreline recession, and - consequently - loss of habitat. www.montrealgazette.com/news/weather...

ICYMI The final frontier: ecological and evolutionary dynamics of a global parasite invasion. Read #BiologyLetters opinion piece: royalsocietypublishing.org/doi/10.1098/... #EcoEvo #ecology #evolution

🌱 From Ecological Applications: Plant traits and slope aspect jointly shape invasion resistance. Native shrubs and trait-matched annuals are most effective in curbing invasives. (Jennifer L. Funk) ▶️ esajournals.onlinelibrary.wiley.com/doi/full/10.... #PlantScience #Ecology #PlantBiology

Agreed.

Quote: "We therefore advise caution regarding the intentional introduction of large mammalian herbivores for conservation purposes (rewilding, assisted colonization) without rigorous assessment of their impacts on native communities."

Quote: "By studying these cases of introduction of large herbivorous mammals - such as deer, horses or buffalo - outside their native range, we have found that these actions, despite the best of intentions, often cause more harm than good to local biodiversity.’" www.myscience.ch/en/news/2025...

@theguardian.com, please stop reporting the charlatans at collosal as "news". Three edits is no more dire wolf, than pigeon tissue culture is a dodo. This is risible www.theguardian.com/science/2025...

The Caspian Sea is disappearing fast – and it’s pitting people against nature.

New study comparing positive & negative impacts of nonnative large herbivores on native species. #bioinvasions "Negative impacts are more common, and of higher magnitude than positive impacts. Reported impact magnitudes decline over time only for positive impacts." www.nature.com/articles/s41...

The great British ecologist Charles Elton wrote in a gov't report in 1937: "The earth is a unique natural park of life, whirling through an otherwise lifeless space. In this natural park are over a million forms of life, evolved into an unstable and highly complex network of communities." [1/2🧵]

A fine tradition that I wish we had at McGill. This would be the book I would choose:

I have watched these nudibranchs (Melibe leonina) while sitting on a dock in Klemtu, B.C.

The evolutionary context of an invasion greatly influences the resulting impact. It can mediate whether native species go extinct and ecosystems become disrupted. Here is an example (one of many).

"Considering the long history of liars winning debates by lying, you would have thought that intellectuals might have learned to stop debating liars." @hormiga.bsky.social ...from old timey creationism "debates", to climate etc. social media today. 🧪 scienceforeveryone.science/debating-is-...

Post three of a three-part series on some unique aspects of rivers and why they’re so challenging to manage. We’re exploring how rivers function as networks, their unique rhythms, and what that means for conservation and restoration. predirections.substack.com/p/to-heal-a-...

How can interactions among non-native species raise the invasion rate of an ecosystem? What affect could more invaders have on the frequency of synergistic impacts? Consider an alternative to the classical biotic resistance hypothesis: invasional meltdown redpath-staff.mcgill.ca/ricciardi/Ri...

Many of New Zealand's unique birds are heading toward extinction. So the country is taking on an ambitious conservation project: eradicating the invasive species that prey on them.

Raising concerns on the dangers of linking biological invasions to human migration 🌎🌐🧪 #bioinvasions www.tandfonline.com/doi/full/10....

I'm amazed that a new paper about invasions & planetary protection would cite only 2 old invasion science refs from the 1990s, as if the theory that developed in the 30yrs since then is irrelevant. If only they'd read a recent textbook. Or our 2022 Bioscience paper. pubmed.ncbi.nlm.nih.gov/40897531/

Quote: "biodiversity is biosecurity... there exists no personal, regional, or national security without species richness." Interesting philosophical views in this article. I would have emphasized *co-evolved* species richness, b/c evolutionary history matters. www.kosmosjournal.org/kj_article/b...

Planetary biosecurity, revisited. www.scientificamerican.com/article/bact...

Quote: “The life here, which we have become accustomed to, is because of the Colorado River. So changing the river in such a catastrophic way really kind of changes what it means to be a Coloradan.” I can relate, having grown up beside the St. Lawrence River. www.washingtonpost.com/nation/2025/...

This is why freshwater biodiversity is 'out of sight, out of mind' for most people, unless they are fortunate to have spent time on a lake or river - and discovered the amazing natural world that exists under water.

Thank you @ellecordova.bsky.social youtube.com/shorts/AYm9w...

A few weeks ago we published a response to a paper looking at the "parallels and discrepancies between non-native species introductions and human migration"... Here is a response from the perspective of the social sciences led by Roxana Barbulescu. www.tandfonline.com/doi/full/10....

Few forces have transformed our planet as thoroughly as the introduction of invasive species. Why did a biologist decide to distribute a non-native species of lizard across the Northeast?

New research demonstrating a shift in online climate misinformation Rather than denying climate science, this 'new denial' comprises "attacks that seek to undermine and cast doubt on proposed climate solutions and those who support them." resolve.cambridge.org/core/journal...

Quote: "Available evidence suggests that the ongoing extinction episode still falls a long way short of the devastation caused by the bolide impact 66 Ma, but that it has likely surpassed most other Cenozoic events in magnitude" onlinelibrary.wiley.com/doi/10.1111/...

Scottish anglers have been urged to catch and kill an invasive non-native species of salmon after numbers of the fish have 'concerningly' increased across the country 👇

‪This was a fun story to write. Last year, environmental police in Brazil stumbled upon thousands of climbing bumblebee catfish. Scientists know almost nothing about this species, which only became known to science in 2017. 🧪🌿🌎

"Mirror organisms" are novel biological entities (like GMOs, synthetic cells, novel hybrids) whose release & potential spread are akin to biological invasions, in my opinion. www.theguardian.com/science/2024...

More than 85 scientists say that a recent U.S. Department of Energy report is full of errors and misrepresents climate science.

Very clever. www.nature.com/articles/s44...

The Mazama newt is found in only one place in the world: Crater Lake. But this tiny amphibian is disappearing, due to invasive crayfish taking over its habitat. We’ve teamed up with the National Park Service and High Desert Museum to give this rare newt-y cutie a fighting chance.

🌍@unep.org’s Freshwater Ecosystems Explorer reveals pollution, shrinking lakes, & climate impacts on rivers worldwide. But recovery is possible—some water bodies are bouncing back! 🧪

Two remarkable Ambassadors for our Planet, 99 year old Sir David Attenborough and 91 year old Dr. Jane Goodall. They’ve dedicated their lives to educate and protect.. 🌍 #janegoodall #davidattenborough #nature #chimpanzees #wildlife #environment #drjanegoodall #jane #sirdavidattenborough #bbc #bsky