Can genetic fingerprints save our oceans? 🧬🌊

Anastasija Zaiko (Sequench) explains how eDNA detects invasive species without catching a specimen.

Watch the #GuardIAS interview: youtu.be/Q-4vanezbXg

#IAS #InvasiveSpecies #BioInvasions #InvasiveAlienSpecies

How do you find a cryptic invader hiding in thick mud?

#GuardIAS is using advanced eDNA barcoding and trialing "quicklime" treatments to protect Belgian wetlands from the African clawed frog.

Read the case study and factsheet: 🔗 guardias.eu/case-study-3...

#IAS #InvasiveSpecies #BioInvasions

Frontiers | Women in Marine Science: 2026 Women play an important role in marine science and according to a recent UN report they make up 38% of ocean science researchers. This Research Topic (RT) ai...

Calling all woman in marine science - let us hear your voices
#bioinvasions #MPAs #convervation
www.frontiersin.org/research-top...

Another paper supported by #GuardIAS has just been published in Fish & Fisheries. The Dark Side of the
Sunfish Family.
#bioinvasions #InvasiveSpecies
@teuneverts.bsky.social
@thanasisnikolaou.bsky.social

🌍 New paper! The global spread of #Sunfish reveals a growing invasion threat—30 species established beyond native ranges, driven by human pathways and climate change. Time to reconcile #fisheries benefits with #biodiversity costs.
🔗 doi.org/10.1111/faf....
#bioinvasions #InvasiveSpecies 🌐 🧪

Non-native mollusc species in Brazil: a first national inventory and distributional overview - Biological Invasions Biological invasions are among the leading drivers of global biodiversity loss, yet in Brazil, the diversity and impacts of non-native invertebrates remain poorly documented, mostly focusing on fishes, arthropods, and mammals. Here, we present the first comprehensive inventory of non-native molluscs in Brazil, revealing a more than 200% increase—from 26 to 82 species—over the past 15 years. This updated list includes representatives of Gastropoda and Bivalvia, and, for the first time, Polyplacophora and Cephalopoda. Each species was categorized according to introduction status: contained, detected, established, invasive, or data deficient; cryptogenic species were listed separately. In total, 82 non-native and 13 cryptogenic species were listed. Among the former, 12 species are contained, 18 detected, 20 established, 20 invasive, and 12 data deficient. These species are divided unevenly across environments: marine/estuarine (32 non-native, 4 cryptogenic), freshwater (17 non-native), and terrestrial (33 non-native, 9 cryptogenic). Our findings underscore the accelerating rate of non-native mollusc introductions, persistent taxonomic and ecological knowledge gaps, and the urgent need to strengthen biosecurity measures, early detection efforts, and long-term monitoring programs across all environments, as well as properly defining the quality and extent of impacts if present.

Machado FM, RB Salvador @krakenscholar.bsky.social, IC Miyahira et al. (2026) Non-native mollusc species in #Brazil: a first national inventory and distributional overview. @biolinvasions.bsky.social
doi.org/10.1007/s105...
#BioInvasions #Mollusca 🧪🌎

268 species and counting—Cyprus emerges as a frontline sentinel of marine #bioinvasions 🌊⚠️
Accelerating introductions, diverse pathways, and clear policy implications for the #Mediterranean.

Read more: doi.org/10.1007/s105...

#MarineEcology #BiologicalInvasions #Biodiversity #InvasiveSpecies 🌐🌍🧪

The dos and don’ts for predicting invasion dynamics with species distribution models - Biological Invasions Invasion dynamics are context-dependent and non-equilibrial, with invasive spread and associated impacts continuously unfolding contingent on pathway, history, and chance, over features of recipient e...

The dos and don’ts for predicting invasion dynamics with species distribution models 🌎🌐🧪 #bioinvasions link.springer.com/article/10.1...

[Interview] How do you track 10,000+ species at once? 🛰️👾

#GuardIAS is building a system that instantly notifies managers of new invasions across Europe.

Data speed = faster protection.

Watch: youtu.be/rihISEvvEE8?...

#IAS #InvasiveSpecies #BioInvasions #InvasiveAlienSpecies

82% fewer invasive crayfish in Italy 🦞📉

#GuardIAS is proving that precision trapping and community action can stop the red swamp crayfish in Tuscany & Lombardy.

Read the case study and grab the factsheet: 🔗 guardias.eu/case-study-1...

#IAS #InvasiveSpecies #BioInvasions #InvasiveAlienSpecies

Congrats! I think the next step for using this metric to understand the impacts of #bioinvasions would be to develop 'dose-response' curves that relate invader biomass to changes in (e.g.) native populations, species richness, & ecosystem function.

🦌Oh deer... biological invasions are taking a lot from our ecosystems -> time to quantity how much and plan a diet 🍫

Note: we are after the Easter bunny 🐇 (where invasive), and not after the chocolates. But we might come back for the deers on Christmas 🎁
#BioInvasions #invasivespecies 🧪

Monitoting enables us to track alien species, anticipate their arrival in areas of concern and understand their impacts. If this is your field - this conference is for you!
#bioinvasions

Can a game save an ecosystem? 🎮🐟

See how #GuardIAS is using gamification to turn 'boring' lectures into active dialogue.

Watch the interview with Sophia Kimmig (@igb-berlin.de) to learn more: www.youtube.com/watch?v=ZpYO...

#IAS #InvasiveSpecies #BioInvasions #InvasiveAlienSpecies

Stopping the clones! 🦞

#GuardIAS is tackling the invasive Marbled Crayfish with eDNA tracking and physical removal to protect native amphibians.

See our latest field results & download the new factsheet: guardias.eu/case-study-1...

#IAS #InvasiveSpecies #BioInvasions #InvasiveAlienSpecies

Alien species inventories underpin our understanding of geographic patterns of invasions. This new paper presents the first list of alien species known from Namibia & is a key step in improving our understanding of invasions in southern Africa. #bioinvasions
www.abcjournal.org/index.php/ab...

A Year of Action: GuardIAS and OneSTOP’s First Year Tackling Invasive Alien Species Across Europe Authored by Grace Windsor from the Irish Ocean Literacy Network, Nadya Denkova from Pensoft Publishers, Stelios Katsanevakis from the University of the Aegean, Quentin Groom from Meise Botanic Garden ...

🌏It’s been over a year since OneSTOP and our sister-project @guardias.bsky.social kicked off with the shared aim of tackling the threat of #InvasiveAlienSpecies in Europe

👉Check out what the two projects have been up to in our joint blogpost: onestop-project.eu/news/year-ac...
#BioInvasions

I like finding old references to species invasions. Here is a 19th century book describing the impacts of an introduced fish: Millet (1871) observed that introduced burbot (Lota lota) became so abundant in Lake Geneva as to cause the loss of native brown trout. #bioinvasions #invasivespecies

An invasive species cost review for New South Wales, Australia, highlights key drivers and limitations of economic cost estimates Accounting for the costs incurred due to biological invasions is important for informing invasive species management policies and for understanding and mitigating future losses. InvaCost, a living rev...

An invasive species cost review for New South Wales, Australia, highlights key drivers and limitations of economic cost estimates #bioinvasions 🌎🌐🧪 neobiota.pensoft.net/article/1574...htt

The Ecosystem Dynamics That Can Make or Break an Invasion | Quanta Magazine By speedrunning ecosystems with microbes, researchers revealed intrinsic properties that may make a community susceptible to invasion.

Intriguing article about a study that contradicts Elton's biodiversity-resistance hypothesis. Diverse microbial communities whose resident populations fluctuate are more likely to be invaded than stable species-poor communities. #bioinvasions #invasivespecies
www.quantamagazine.org/the-ecosyste...

>550 abstracts received for the #ECSA61 #conference, but the submission has been extended until 31st March. Don't miss our Special Session on better preventing & managing marine #BiologicalInvasions in estuarine and coastal waters

#MarineEcology #Research #InvasiveSpecies #bioinvasions #GuardIAS🌍🌐

#GuardIAS is one of the projects supporting the #ECSA61 conference in Brussels on "Bridging the gap between science and policy in estuarine and coastal marine #biodiversity: the way forward".
Submissions until 31 March!
🌐🌍 #bioinvasions

🦞 #GuardIAS is supporting the control of invasive red swamp crayfish at two sites in Italy, exploring field management actions, monitoring, & lessons for improving freshwater biodiversity protection.

👉 guardias.eu/controlling-...

#InvasiveAlienSpecies #IAS #InvasiveSpecies #BioInvasions

CLIMEX Match Climate Composite Match Index (CMI) overlaid with Tipuana tipu distribution location records, projected globally. Insets show the native range, part of South America, part of southern Africa, southwest Australia, and an area of eastern Australia with high levels of cultivation and/or naturalisation. Areas with an orange-red colour (CMI 0.8–1) had high CMI values. Areas with a blue colour (CMI 0.6–0.8) had a climate with moderate CMI values. Records of T. tipu are shown as open circles. Pink circles represent records of plants within the native range. All other colours represent plant records in the non-native range, with purple representing cultivated plant records, yellow representing non-cultivated plant records, green representing records with both cultivated and non-cultivated plants and brown representing plant records where the cultivation status was indeterminate.

The interplay between climatic niche and spatial distribution can inform the management of non-native invasive species. Our findings reveal that the invasion risk for species with small geographic ranges may be greater than assumed.
Read more (OA): doi.org/10.1016/j.ec...
#bioinvasions 🌐🌏🧪

🔔 Registrations for the #GuardIAS summer school 2026 will close on 15 March 🔔

Explore the program and meet the trainers: guardias.eu/welcome-to-t...

Register here: docs.google.com/forms/d/e/1F...

#InvasiveAlienSpecies #IAS #InvasiveSpecies #BioInvasions

New Policy Brief! 🛥️Biofouling is a big risk for invasive species spread—yet still unregulated. #GuardIAS pushes research, AI tools, risk models & boater engagement to tackle biofouling and protect European waters.

#Biofouling #InvasiveSpecies #bioinvasions 🌍🌐🧪

Check 👉 guardias.eu/wp-content/u...

Last summer, #GuardIAS ran marina events for boaters and staff to look at what’s growing under your boat, spotting invasive alien species early helps protect marine and freshwater biodiversity.

Read more: 👉 guardias.eu/marina-event...

#InvasiveAlienSpecies #IAS #InvasiveSpecies #BioInvasions

Tracking pink salmon in Northern Norway. 🐟

Using eDNA, blowfly iDNA, and bow-tie analysis to map their impact on the Arctic tundra, see how we're scaling up detection of 'zombie' salmon.

👉 guardias.eu/scaling-up-p...

#GuardIAS #InvasiveAlienSpecies #IAS #InvasiveSpecies #BioInvasions

marshdeer.github.io/xkcd2501-gen... #bioinvasions

#Biodiversity doesn’t follow borders — but #conservation policy still does. A new policy brief, inspired by Haubrock et al. (2026), calls for cross-border coordination, open ecological data, and stronger early warning to tackle #InvasiveSpecies. Supported by #GuardIAS
#bioinvasions 🧪🌐🌍