Anthony Ricciardi
@ecoinvasions.bsky.social
4K followers 980 following 840 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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Reposted by Anthony Ricciardi
resiliencesci.bsky.social
A boost for integrative rethinking of resilience in water-driven transitional ecosystems
Hurtado+
doi.org/10.1093/bios...

rethinking resilience of water-driven transitional ecosystems
"characterized by experiencing periodic and reversible alternations of aquatic-terrestrial transitional states"
Figure 2. Assembly disassembly dynamics of biological covers in water-driven transitional ecosystems. Historically, biodiversity assessmentshave primarily been focused on the ability of aquatic biofilms (in light green) to resist and recover from drying, overlooking the compensatoryeffects provided by terrestrial organisms. However, during the terrestrial phase, aquatic species must acclimate or emigrate, favoring organismswith rapid life cycles and specific adaptations for survival during the terrestrial phase (biocrusts in brown). Within an integrative approach,biological covers (in blue) are a cornerstone community, embracing both biofilm and biocrust dynamic ensembles that better represent thebiodiversity changes associated with fluctuating water availability. WDTE refers to water-driven transitional ecosystem.
ecoinvasions.bsky.social
Watch to the end.
kojamf.bsky.social
Dr. Jane Goodall filmed an interview with Netflix in March 2025 that she understood would only be released after her death.
Reposted by Anthony Ricciardi
kevinjkircher.com
Sometimes I think about how from 1935-1975ish, Bell Labs produced an insane amount of revolutionary science and technology, including 11 Nobel Prizes, the transistor, UNIX, C, the laser, the solar cell, information theory, etc. The secret? Provide scientists with ample, steady, no-strings funding.
sites.stat.columbia.edu
Reposted by Anthony Ricciardi
c-j-fisher.bsky.social
No one understood the importance of scientists engaging in society more than #JaneGoodall.

Though she lived a long, vibrant life, I still felt sad today, knowing that we lost an incredible ambassador for science, whose empathy, curiosity, and resilience inspired me and countless others.

(1/5) 🧪
Reposted by Anthony Ricciardi
sagan.bsky.social
"The prediction I can make with the highest confidence is that the most amazing discoveries will be the ones we are not today wise enough to foresee."

-Carl Sagan, Billions & Billions: Thoughts on Life and Death at the Brink of the Millennium
ecoinvasions.bsky.social
It was a pleasure to visit Leeds University and to see @josiesouth.bsky.social (one of my favorite colleagues) and her keen group of grad students.
josiesouth.bsky.social
This week was full of training, workshops and seminars. @leopoldadrianus.bsky.social taught the group ecomorphology, @ecoinvasions.bsky.social gave an insightful lecture on context dependent invasion impacts
Reposted by Anthony Ricciardi
ricciardilab.bsky.social
In the Richelieu River, 25 years' exposure to zebra mussel fouling and food competition has produced a longterm erosion of native unionid mussels, despite the river's chemistry being suboptimal for zebra mussels.
cdnsciencepub.com/doi/10.1139/...

Pre-print: utoronto.scholaris.ca/bitstreams/9...
ecoinvasions.bsky.social
Sabotage by animal rights militants? 😁
ecoinvasions.bsky.social
Invasional meltdown is a fascinating, poorly understood, and highly consequential phenomenon that can transform entire ecosystems. New models and experiments are needed to inform theory.
#bioinvasions #invasivespecies
ecoinvasions.bsky.social
1/ Invasional meltdown is a popular but nebulous concept in invasion ecology. It involves multiple direct & indirect mechanisms, yet it is rarely studied beyond simple pairwise facilitations.

In a new paper, we expand the concept & offer testable hypotheses: redpath-staff.mcgill.ca/ricciardi/Ri...
Reposted by Anthony Ricciardi
thierryaaron.bsky.social
"Do doctors really know what they are talking about when they tell us vaccines are safe? Should we take climate experts at their word when they warn us about the perils of global warming? Why should we trust science when our own politicians don’t?" @naomioreskes.bsky.social provides some answers
https://press.princeton.edu/books/hardcover/9780691179001/why-trust-science
ecoinvasions.bsky.social
Count me, too, among the ecologists who are unimpressed with conservation philosophies that embrace/ignore/soft-pedal invasive species.
chleansaidlane.bsky.social
I am giving a short online overview of my recent paper, next week. Expect me to be unimpressed with new conservation, compassionate conservation, the multispecies justice movement, and others defending invasive species. Register here:

cassyni.com/events/GXDbo...
ecoinvasions.bsky.social
"I choose to listen to the river for a while, thinking river thoughts, before joining the night and the stars."

- Edward Abbey ('Desert Solitaire', 1968).
#WorldRiversDay #StLawrenceRiver
Person fishing on St Lawrence River with Montreal skyline in background. (Associated Press photo)
Reposted by Anthony Ricciardi
thismanyyearsago.bsky.social
63 years ago, on the 27th of September 1962, Rachel Carson's book Silent Spring was published. It handled the environmental harm caused by the pesticide DDT and the disinformation spread by the chemical industry. Carson managed to sway public opinion and even policy. #otd #history 🗃️
Rachel Carson photo credit: Science History Images / Alamy
ecoinvasions.bsky.social
"We’ve looked at the Ganges and the Caspian Sea, but this could have been about Lake Victoria, or about drying rivers in Europe, or the disappearance of Bolivia’s second largest lake.

It’s not just water that disappears: it’s entire ecosystems and ways of life." theconversation.com/vanishing-wa...
Vanishing waters in a warming world
Bad news for the rivers and the lakes that we’re used to.
theconversation.com
ecoinvasions.bsky.social
New paper from our lab: The use of #microplastics as case-building material by larval caddisflies facilitates the transfer of plastic (& potentially its associated contaminants) to predatory fish.
Larval caddisflies (Limnephilidae) that had been exposed to microplastics (PET) and natural materials will readily incorporate plastic into their cases. Plastic in gastrointestinal tract of a freshwater fish (brown bullhead) exposed to larval caddisflies whose cases incorporate plastic.
ecoinvasions.bsky.social
There is reason to be concerned. Genetic swapping between flu viruses has likely occurred in farmed pigs, and led to reassortment that created novel avian/swine flus.

The mixing vessel concept is important for understanding the emergence of invasive zoonotic pathogens from farming practices.
Figure by K. Dhama. https://www.researchgate.net/publication/229805901_Swine_flu_and_the_current_influenza_A_H1N1_pandemic_in_humans_A_review
Reposted by Anthony Ricciardi
ricciardilab.bsky.social
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...
Caddisfly larvae (Trichoptera: Limnephilidae) facilitate the uptake of microplastics by a freshwater fish (Ameiurus nebulosus)
Microplastics are pervasive in inland waters and are entering aquatic food webs through diverse pathways. Caddisflies (Trichoptera) are common prey it…
www.sciencedirect.com
Reposted by Anthony Ricciardi
mmahon.bsky.social
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