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Anthony Ricciardi

@ecoinvasions.bsky.social
4.4K followers 800 following 1.4K posts

Ecologist (invasive species, freshwater biodiversity, bioinvasions, aquatic ecosystems) | Professor of Biology, McGill University | Director of the Bieler School of Environment | My lab account: @ricciardilab.bsky.social

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Anthony Ricciardi @ecoinvasions.bsky.social · 4h
Not a compelling argument by itself. Neither Hemimysis or Echinogammarus (2 other Eurasian crustaceans introduced to the Gt Lakes) were ever found in transoceanic ballast tanks, to my knowledge. But Bytho was found as viable resting eggs in domestic ships, suggesting a potential transoceanic vector.
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Anthony Ricciardi @ecoinvasions.bsky.social · 4h
Another example of why you should avoid using AI to write the text of journal articles.
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Anthony Ricciardi @ecoinvasions.bsky.social · 30/09/2026
www.jcu.edu.au/news/release...
jcu.edu.au
Freshwater fish face growing extinction threat
Many of Australia's unique freshwater fish species are edging closer to extinction, with new research warning that the nation's Wet Tropics is facing an escalating conservation crisis.
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Anthony Ricciardi @ecoinvasions.bsky.social · 29/09/2026
www.independent.co.uk/news/science...
independent.co.uk
The invasive species that may run rampant as sea levels rise
Study says estuaries are particularly vulnerable to alien species
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Anthony Ricciardi @ecoinvasions.bsky.social · 29/09/2026
www.dailysabah.com/life/environ...
dailysabah.com
Rising seas may open new ground for invasive species: Scientists
The sea-level rise driven by climate change could help invasive marine species spread into newly flooded coastal areas, threatening biodiversity and some...
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Reposted by Anthony Ricciardi
Plants, People, Planet @plantspeopleplanet.bsky.social · 23/09/2026
“Urban-evolved invasive species may be well suited to future climate conditions, providing them an advantage over native species and complicating management efforts,” said Luke Flory, director of the Invasion Science Institute. Read the research: nph.onlinelibrary.wiley.com/doi/10.1002/...
blogs.ifas.ufl.edu
Cities worldwide may be the ultimate training grounds for invasive species - News
Email 0 Facebook 0 Twitter 0 Reddit 0 X Linkedin 0 Stumbleupon 0 With city growth and urban sprawl, could these changing landscapes be giving invasive species a competitive edge? Scientists at the…
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Nature Ecology & Evolution @natecoevo.nature.com · 29/09/2026
Sea-level rise may create a new front for the landward expansion of marine invaders into inundated areas. The authors project that more than two-thirds of inundated land areas would be suitable for 122 non-native animals under future sea-level-rise scenarios 🧪 www.nature.com/articles/s41...
nature.com
Global sea-level rise will create a new biological invasion front - Nature Ecology & Evolution
Sea-level rise may create a new front for the landward expansion of marine invaders into inundated areas. The authors explore the probability of this, projecting that more than two-thirds of inundated...
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NeoBiota @neobiota.pensoft.net · 29/09/2026
🪲 An inventory of non-native insects in China has been compiled, revealing 241 species that have been primarily introduced from Asia and North America, with their numbers increasing exponentially since 1900. Learn more: doi.org/10.3897/neobiota.109.184222
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Miguel Clavero @chikichanka.bsky.social · 28/09/2026
When Elton wrote the statement quoted below, Japanese, European and American eels were extraordinarily abundant species When Elton died (1991) all three had collapsed Everything has gone nothing but worse since then, and other eel species are now following that same extinction path (see post below)
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Anthony Ricciardi @ecoinvasions.bsky.social · 28/09/2026
Here is an intriguing ecological detective story involving several captivating characters, including invasive predatory fishes (catfish & basses) + an endangered native species, in the context of flow barriers & high turbidity. Some complex community ecology teased apart by Dr. Kontou & colleagues.
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Anthony Ricciardi @ecoinvasions.bsky.social · 28/09/2026
"The argument that a species is in no danger because it is very common, is a complete fallacy; but is very often brought forward...by people who have a financial interest in destroying the animals." - Charles Elton, Animal Ecology (1927) Each of these species was very common 1-2 centuries ago.
Atlantic codAmerican bisonPassenger pigeonThylacine
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Anthony Ricciardi @ecoinvasions.bsky.social · 27/09/2026
A story of passion, curiosity and perseverance by a team brought together by "disruptions and despair over the Trump administration’s freezes to federal science funding". Led by a "couch microscopist" and working out of a cheap motel room, the team made a significant discovery.
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Anthony Ricciardi @ecoinvasions.bsky.social · 26/09/2026
OTD in 1962, Silent Spring was published. “Nature has introduced great variety into the landscape, but man has displayed a passion for simplifying it. Thus he undoes the built-in checks and balances by which nature holds the species within bounds.” ― Rachel Carson, Silent Spring
Rachel CarsonThe front cover of Silent Spring.
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Vincent J Lynch 🐘🦣🦥 🦇🐋🐢🐍 @devoevomed.bsky.social · 26/09/2026
I think a bigger concern with the “dire wolves“ is that Canids are not reproductively isolated — if released these GMO “dire wolves” would interbreed with wild gray wolves, and turn them into dire wolves? And when they mate with red wolves are they now dire ones? www.nwf.org/Home/Magazin...
nwf.org
Is Synthetic Biology Worth the Risk?
Some say using synthetic biology to change the DNA of plants and animals could help species survive threats. Others say the technology is far too dicey.
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Brian J. Enquist @bjenquist.bsky.social · 25/09/2026
"... The very sharp-sighted always find discrepancies and are able to say that there is no generality, only a spectrum of special cases. This diversity of outlook has proved useful in every science, but it is nowhere more marked than in ecology." - R.H. MacArthur 1968 🧪🌐
Ecological patterns, about which we construct theories, are only interesting if they are repeated. They may be repeated in space or in time, and they may be repeated from species to species. A pattern which has all of these kinds of repetition is of special interest because of its generality, and yet these very general events are only seen by ecologists with rather blurred vision. The very sharp-sighted always find discrepancies and are able to say that there is no generality, only a spectrum of special cases. This diversity of outlook has proved useful in every science, but it is nowhere more marked than in ecology.
Robert MacArthur (MacArthur 1968)
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Anthony Ricciardi @ecoinvasions.bsky.social · 25/09/2026
Co-founder of Retraction Watch says it's easy to enter a dataset into ChatGPT/Claude & generate a study with findings of little consequence ("meaningless science"). Systematic reviews are particularly easy to create. Seems to be a trend, not only in med journals. www.medpagetoday.com/special-repo...
medpagetoday.com
Is AI Flooding Medical Journals With 'Meaningless' Research?
'It's not fraudulent, and it's not really slop,' one expert says
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CREAF @creaf.cat · 25/09/2026
🏝️Is islands' unique #biodiversity becoming a myth? A recently published STUDY, with CREAF's participation, shows that islands concentrate nearly 75% of all global #extinctions recorded by the IUCN! 🤯 And that’s not all 🧵
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Anthony Ricciardi @ecoinvasions.bsky.social · 24/09/2026
Human regulation of rivers overwhelms natural patterns on a global scale. Quote: “We are altering the flows of rivers everywhere on the planet.” www.science.org/content/arti...
science.org
Satellite reveals a world of ‘weird rivers’ shaped by humans
SWOT is exposing humans’ effects on rivers—and challenging flood prediction models
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John P. Friel, Ph.D. @friel.bsky.social · 23/09/2026
Reminiscing about a better time at the Academy of Natural Sciences, like when a bromance between Henry Weed Fowler and Ernest Hemingway lead to description of new fish species. www.phillyvoice.com/ernest-hemin...
phillyvoice.com
Why the Academy of Natural Sciences named a fish after Ernest Hemingway
The author took scientists on fishing expeditions and mailed specimens to Philadelphia while he was between books.
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Miguel Clavero @chikichanka.bsky.social · 23/09/2026
Very nice paper in @peopleandnature.bsky.social showing that people rapidly change their perception around the nativeness status of species when they are used to their presence Shifting baselines and non-native species... see my 2014 paper below besjournals.onlinelibrary.wiley.com/doi/10.1002/...
besjournals.onlinelibrary.wiley.com
Perceptions of nativeness shift quite rapidly over time
Read the free Plain Language Summary for this article on the Journal blog.
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Anthony Ricciardi @ecoinvasions.bsky.social · 23/09/2026
This is one of many species that posed a high risk of invading North American inland waters via the St Lawrence Seaway - until the 2006-08 ballast water regulation was put into effect (see conbio.onlinelibrary.wiley.com/doi/full/10....). www.bbc.com/news/article...
bbc.com
Invasive demon shrimp discovered in Wiltshire waterway
The "highly invasive" shrimp are larger than native species and can damage ecosystems.
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New Scientist @newscientist.com · 22/09/2026
An amoeba living in a Californian hot spring is thriving above 60°C, a threshold previously thought deadly to complex life
newscientist.com
Fire amoeba breaks heat tolerance record for complex life | New Scientist
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Jonas Lembrechts @jlembrechts.bsky.social · 22/09/2026
Quick guess! Do you think biotic resistance holds up in mountains? Elton (1958) predicted diverse native communities resist newcomers. Our new paper using the global MIREN data says: not really — mountains didn't play along. The breakdown --> the3dlab.org/2026/09/22/n...
the3dlab.org
Little resistance where we expected it
Once you have gone through the effort of collecting a global database, you can start playing with it. And one of the most fun things to play with, I’d say, is general ecological theories &#82…
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Prof Sam Illingworth @samillingworth.com · 22/09/2026
🌱 Invasive plants evolve to win Researchers found plants growing outside their native range evolved to outcompete their own relatives back home, in wet and dry conditions alike. 🔗 doi.org/10.1038/s41467-026-77819-z #ecology #invasivespecies #plants 🧪
doi.org
Rapid and repeated evolution of increased competitive ability in a global invader - Nature Communications
Rapid evolution may shape the success of invasive species. This study shows that the invasive plant species Erigeron canadensis repeatedly evolved increased competitive ability after introduction, and...
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Anthony Ricciardi @ecoinvasions.bsky.social · 22/09/2026
Classic example of invasional meltdown. The ants have a mutualism with introduced scale insects. Ant attacks have severely reduced native land crabs, thus altering the forest understory & lowering resistance to invasion by giant African land snails. #bioinvasions scienceofficial.org/nature/yello...
scienceofficial.org
Yellow Crazy Ants Defeat Red Crabs with Chemical Attack on Christmas Island
BBC footage shows yellow crazy ants using formic acid to overpower red crabs, highlighting an invasive species crisis that has devastated Christmas Island's ecosystem for decades.
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Princess Vimentin PhD | Cancer Biologist @princess-vimentin.bsky.social · 19/09/2026
This is noteworthy. Again, no compelling evidence supports the COVID lab leak theory. The furin cleavage site present in SARS-CoV2 was perceived as unusual, fueling the lab leak theory. But now we understand that other bat betacoronaviruses have it. 🧪 www.chemistryworld.com/news/does-th...
chemistryworld.com
Does the discovery of a new coronavirus upend the Covid-19 lab-leak hypothesis?
Sequence found in Sars-CoV-2 had never been seen in another bat coronavirus until now
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Anthony Ricciardi @ecoinvasions.bsky.social · 20/09/2026
By 2030, global demand for freshwater is expected to exceed supply by 40%. europeancorrespondent.com/en/r/europes...
europeancorrespondent.com
Europe's rivers are warning us with our ancestor's handwriting
Europe’s major rivers are at record low water levels: the Rhine and the Danube, the Po in Italy, and the Loire in France. Across central Europe, retreating…
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Anthony Ricciardi @ecoinvasions.bsky.social · 20/09/2026
Severe impacts of biological invasions on the welfare of native & nonnative animals are an ongoing global phenomenon that has been understudied. #bioinvasions #invasivespecies theconversation.com/biological-i...
theconversation.com
Biological invasions can cause severe animal suffering
Biological invasions can severely harm the welfare of animals, causing them to suffer. AWICIS is a new framework that can be used to assess the severity of these impacts.
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Anthony Ricciardi @ecoinvasions.bsky.social · 19/09/2026
One of the many gratifying experiences I have had as a prof is to witness my wonderful grad students mentor & inspire undergraduate researchers to success.
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Garry Peterson @resiliencesci.bsky.social · 19/09/2026
What science does biodiversity action still need? Lessons from a decade of IPBES doi.org/10.1371/jour... 1) systems approaches that capture interactions across sectors and scales 2) a stronger science of transformative change 3) science to embed biodiversity within business and finance decisions
doi.org
What science does biodiversity action still need? Lessons from a decade of IPBES
Reflecting on a decade of IPBES assessments, the outgoing Executive Secretary identifies the scientific priorities—systems thinking, transformative change, and business engagement—needed to accelerate...
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Anthony Ricciardi @ecoinvasions.bsky.social · 19/09/2026
Quote: "Science has spent generations learning to see nature more clearly. Its next advance will depend on learning to see humans within it—and modeling how human actions shape biodiversity." This is precisely what invasion ecology has aimed to do, for decades now. #bioinvasions
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Anthony Ricciardi @ecoinvasions.bsky.social · 19/09/2026
Quote: "We found that in addition to anthropogenic propagule pressure, more non-native species tended to occur in cities with greater urbanization, as indicated by higher habitat modification, warmer temperatures and lower native biodiversity." www.nature.com/articles/s44... #bioinvasions
nature.com
Urbanization promotes biological invasions in global cities - Nature Cities
Urbanization significantly influences biological invasions, with developed cities exhibiting higher non-native vertebrate richness. Key factors include propagule pressure, habitat modification and cli...
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Global News | Breaking, Latest News and Video for Canada [Unoff… @globalnews.ca.web.brid.gy · 18/09/2026
globalnews.ca
This invasive species has just been found in Canada for the 1st time
The invasive spotted lanternfly has been confirmed in Canada, according to the Canada Food Inspection Agency, which is urging Canadians to take action if they spot it.
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Anthony Ricciardi @ecoinvasions.bsky.social · 19/09/2026
North American species introduced to Europe: "Faunal imperialism in reverse" daily.jstor.org/the-rise-and...
daily.jstor.org
The Rise and Fall of Britain's Muskrat Empire - JSTOR Daily
A fur-farming experiment unleashed a prolific rodent—and sparked one of the rare successful eradications of an invasive species.
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Anthony Ricciardi @ecoinvasions.bsky.social · 19/09/2026
The future of science communication?
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Anthony Ricciardi @ecoinvasions.bsky.social · 18/09/2026
www.cbc.ca/news/canada/...
cbc.ca
The invasive spotted lanternfly has been detected in Canada for the first time – in Windsor | CBC News
An invasive insect known to kill grapevines and impact other crops and trees has been detected for the first time in Canada by the Canadian Food Inspection Agency (CFIA). And that first detection happ...
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Anthony Ricciardi @ecoinvasions.bsky.social · 17/09/2026
theconversation.com/climate-chan...
theconversation.com
Climate change is making it easier for invasive species to succeed
More common extreme weather events can create opportunities for invasive species to spread.
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Conservation Biology @conbiology.bsky.social · 17/09/2026
📣Conservation Newspeak📰 In this article, Devictor and Godet share that the recent proliferation of optimistic, probusiness terminology is reshaping conservation goals and subtly influencing policy and practice. Learn more at: doi.org/10.1111/cobi... #conservation #scienc
doi.org
Conservation newspeak
Click on the article title to read more.
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Anthony Ricciardi @ecoinvasions.bsky.social · 17/09/2026
"It’s common in such circumstances to say that a competent reviewer ought to have caught the errors...but more importantly, a competent scientist shouldn’t have made them in the first place" Of course a MDPI journal would publish this trashy paper. Imagine how bad it must be for them to retract it.
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Anthony Ricciardi @ecoinvasions.bsky.social · 17/09/2026
Invasive species pose diverse risks to human health. Zebra mussel invasion promotes blue-green algal blooms in lakes: cdnsciencepub.com/doi/10.1139/... www.sciencedirect.com/science/arti... And algal blooms can produce toxic airborne particles that are breathed in by people (see below).
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Anthony Ricciardi @ecoinvasions.bsky.social · 16/09/2026
"A Victorian ornamental imported as a botanical prize has become so intractable that even intensive modern science cannot eradicate it from the ground where it takes root."
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Anthony Ricciardi @ecoinvasions.bsky.social · 16/09/2026
"Impacts of invasion did not stabilize [but] rather have intensified over time. These patterns indicate emergence of a novel ecosystem state where native fauna increasingly rely on invasive resources" Cool study! I discuss similar destabilizing dynamics here: redpath-staff.mcgill.ca/ricciardi/Ri...
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Anthony Ricciardi @ecoinvasions.bsky.social · 16/09/2026
Using AI to review a paper/proposal or to generate a comment for publication will almost invariably produce superficial fluff. If an early career researcher regularly engages in this practice, it may eventually taint their peers' perception of their expertise.
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Anthony Ricciardi @ecoinvasions.bsky.social · 16/09/2026
I've seen published papers that I suspect are generated largely by LLM. They lack novelty, are overly general, & depend more on prose than substance. The science they contain is superficial, as expected when the unique voice & ideas of an expert are replaced by phrases copied from an existing pool.
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Nic Rawlence @nicrawlencenz.bsky.social · 15/09/2026
While additional money for conservation is welcome, I find aspects of this announcement of a $4M partnership between @itiscolossal.bsky.social & the IUCN somewhat worrying www.prnewswire.com/news-release... 1/6 🧵
prnewswire.com
IUCN Species Survival Commission and Colossal Foundation Launch $4 Million Partnership to Accelerate Global Species Conservation
/PRNewswire/ -- IUCN Species Survival Commission (SSC) and the Colossal Foundation, the 501(c)(3) nonprofit arm of Colossal Biosciences, today announced a...
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Anthony Ricciardi @ecoinvasions.bsky.social · 15/09/2026
www.theguardian.com/australia-ne...
theguardian.com
Rabbits are the biggest threat to Australia’s native species. Why are their numbers booming again?
Good rainfall and growing resistance to viruses are to blame for growing populations around the country, scientists say
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McGill Bieler School of Environment @mcgillenvironment.bsky.social · 14/09/2026
Thanks to the Eddie Goldenberg Research Chairs program, we are looking forward to welcoming Professor Julie Lockwood, a leading invasion ecologist joining the BSE from Rutgers, who will bring her expertise in biosecurity and climate resilience. www.mcgill.ca/newsroom/cha...
mcgill.ca
McGill University attracts six leading researchers thanks to Government of Canada’s $1 billion program
27 August 2026 – Chloé Arson, Tomislav Friščić, Julie Lockwood, Sameer Sonkusale, Phillip Zamore and Ethan Zuckerman have been named McGill University’s inaugural Eddie Goldenberg Research Chairs of C...
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Miguel Clavero @chikichanka.bsky.social · 14/09/2026
Having non-natives species as conservation priorities is a form of the shifting baselines syndrome My @conbiology.bsky.social text on this issue has just reached 100 GS citations I built on the cases of the Italian crayfish and European mink, present in Spain since 1588 and the 1940s, respectively
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Anthony Ricciardi @ecoinvasions.bsky.social · 14/09/2026
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Anthony Ricciardi @ecoinvasions.bsky.social · 14/09/2026
Quote: "One of the greatest biological invasions [the Great American Biotic Interchange] highlights how biogeographic processes and biotic interactions can shape continental diversity."
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