What we’ve learned from citizen science: 5 projects that made a difference From wombat and mozzie surveillance to deciphering climate history and spotting star explosions, citizen scientists are instrumental in contributing knowledge.

Check out how #citizenscientists have helped #wombats in this new @TheConversation article: theconversation.com/what-weve-le... #wildlife #Australia #conservation

💧 It's World Water Day

As the global platform for citizen science projects on freshwater, #Citizens4Water drives attention to the importance of protecting our water resources & highlights how #CitizenScientists contribute valuable knowledge and action.

➡️ www.citizens4water.org

Bureau of Reclamation offering up to $200K for ideas to stop invasive mussels As invasive mussel species continue to spread across the state, both local and national agencies like the US Bureau of Reclamation are looking at every avenue t

For all the #CitizenScientists out there trying to make a difference in the world. Here's an opportunity to win money for your efforts.

6 proposals awarded $25,000
3 ideas chosen, awarded $50,000 to work on a prototype for Phase Three: lab testing.

1st $125,000
2nd $75,000
3rd $50,000

#Science

Week of the Volunteer starts today! 🤝

A perfect moment to celebrate #CitizenScientists, whose engagement makes many research projects possible! 👩‍🔬

To kick off the week, check out the free lunch webinars (NL) from Vlaams Steunpunt Vrijwilligerswerk & Hitch on volunteer engagement: buff.ly/MEjiXik

Graphical abstract Jacobusse (2026)

New publication: #Non-detection by citizen scientists modeled as a function of #visit characteristics. #citizenscientists
doi.org/10.1016/j.ec...

I am working with #citizenscientists this weekend in the @taxonexpeditions.bsky.social entomological collection, to screen insects for the presence of ectoparasitic microfungi. This project is supported by @msafungi.bsky.social. #TeamLaboul #Laboulbeniales

Top work by #citizenscientists
@bsbibotany.bsky.social

Former NSW Labor minister condemns Forestry Corporation after greater glider ‘den trees’ found at planned logging site Bob Debus says operations at Glenbog state forest on south coast show native forest logging is untenable

Forestry Corporation condemned after greater glider ‘den trees’ found at planned logging site
www.theguardian.com/australia-ne...
Bob Debus says operations at Glenbog state forest on south coast show native forest logging is untenable.

#citizenscientists recorded 102 dens, 666 wombat burrows.

Huge thanks to 3,652 of you amazing #CitizenScientists who went out hunting for #NewYearPlantHunt!
You sent us >25K records of an astonishing 663 different wildflower spp. blooming across Britain & Ireland
Headlines in our infographic 👇
More details on our 2026 Results page: bsbi.org/take-part/ac...

🐾💻 #WombatWeekend Update!
Exciting news! #WomSAT is getting some upgrades! 🎉 Soon, #citizenscientists will have even more #tools to protect #wombats and #track sightings and #mange #treatments 💚

🔊🌊 Just out in Sensors: a low-cost (~50 €) #hydrophone toolkit for robust underwater #AcousticMonitoring. Built for researchers, educators and #CitizenScientists eager to explore marine #soundscapes. Hear the ocean differently. 🐳🛥️🐬📡 www.mdpi.com/1424-8220/25...
#MarineEcology 🌍🌐🧪

🔝 Join: The Power of #CitizenScientists vs #InfectiousDiseases (Today 11:30–13:00).

👥 Discover how community-driven data is transforming infectious & vector-borne disease surveillance, with insights from #IDAlert, #MosquitoAlert & Report Tick.
zoom.us/webinar/regi...

For six weeks each autumn, biologist Julie Woodruff leads a team of #citizenscientists catching, banding, and releasing northern saw-whet #owls in the #BayArea. The data they collect helps scientists understand how development and climate change are affecting these tiny raptors.

📷: Amy Moore
🧵 1/3

The nuclear and mitochondrial genomes of the bellicose bumblebee (Bombus bellicosus, Hymenoptera: Apidae), a threatened pollinator in a changing South American landscape We present the first genome of a Brazilian bumblebee species, the bellicose bumblebee (Bombus bellicosus). This is an endemic species in southern South America facing local extinction due to habitat…

Saving the bellicose #bumblebee! 🐝 Brazil’s endemic Bombus bellicosus faces habitat loss & #ClimateChange. Sequencing its #genome shows it’s genetically diverse enough to survive, thanks in part to #CitizenScientists who helped locate populations.
🔗 doi.org/10.1139/gen-...

Volunteers Catch and Release Tiny Owls for Science In Santa Rosa, citizen scientists capture northern saw-whet owls to help further research on climate impacts to the bird.

In #SantaRosa, #citizenscientists capture northern saw-whet #owls to help better understand impacts from urban and industrial development, #logging, and #climatechange. buff.ly/Rsrn3Dp

🧵 5/7

Hilf mit, geheime, gelehrte und glanzvolle Karten aus 1000 Jahren zu verorten! 📍
🏛️ Die Zentralbibliothek Zürich besitzt rund 1200 historische Manuskriptkarten, die von #CitizenScientists georeferenziert werden können.
👉 Mehr dazu: www.schweizforscht.ch/projekte/ein...

‘Pirates’ of the Caribbean: The luck and pluck of three-legged lizards Researchers from Washington University in St. Louis and the Georgia Institute of Technology study lizards who have lost limbs to understand how omnipresent the forces of natural selection can be, and ...

Look y'all: If these 3-legged lizards can make it, so can we. From @jblosos.bsky.social and James Stroud and many #CitizenScientists who submitted photos. #ScienceSky #Evolution #AdorableLizards 🦎🦎🧪

source.washu.edu/2025/10/pira...

Microbelix-Exponat: Ein Schaukasten mit Erdboden und kleinen Pflanzen. Davor ein Touchscreen, dahinter ein großer Monitor mit Informationstexten

Microbelix-Exponat: Ein Schaukasten mit Erdboden und kleinen Pflanzen. Dahinter ein großer Monitor mit Informationstexten

Gemeinsam mit #CitizenScientists sucht @microbelix.bsky.social @helmholtzhips.bsky.social in Bodenbakterien nach neuen Wirkstoffen gegen Infektionskrankheiten.🦠 Wir freuen uns, ein Exponat, das das Projekt erläutert, als Leihgabe bei uns zu haben.
So könnt ihr selbst mitmachen: hips.saarland/sample/

Do you work with #CitizenScientists #volunteers #TOs or #CommunityGroups? This #NewPaper on #CoCreation and #acknowledgement is for you ⬇️👏

Gratitude to @scienceforall.bsky.social and @jacknunn.bsky.social for their hardwork & leadership 🙏

@seabirdsentinel.bsky.social

Volunteers’ diverse and unexpected knowledge practices in contributory citizen science - BMC Ecology and Evolution The most common environmental citizen science program type, often called “contributory” citizen science, invites volunteers to help with data collection. But is that all their volunteers do? Previous ...

#CitizenScientists worth their weight in gold! 💛💛💛

Not just about collecting, also knowledge learnt was expanded, shared, used in different ways: as #researchquestions, #dataanalysis, learning about and sharing #policy plus other stuff. Amazing! 🌍

bmcecolevol.biomedcentral.com/articles/10....

A female orange and black butterfly in profile view rests on a yellow flower in a garden.

A female orange and black butterfly rests on a yellow flower in a garden.

The 2nd graders sent off another female #monarch today! #AdiosMariposa #Insects #Invertibrates #butterflies #Photography #VT #CitizenScientists

#citizenscientists

Space objects

Space objects

🚨 Calling at citizen scientists! 🚨

Volunteers can help discover rare objects in the solar system using data from the @vrubinobs.bsky.social on the online platform @zooniverse.bsky.social.
www.zooniverse.org/projects/ori...
#space #science #citizenscientists #solarsystem

https://montereysea.org/community-events/

#CitizenScientists test water in local streams, rivers, watersheds:

Snapshot Day in Monterey Bay 2025 will be held on July 12th. It's an annual event where volunteers collect water quality samples and field measurements from streams flowing into the Monterey Bay National Marine Sanctuary.

Thanks for starting this. I work with @bto-gbw.bsky.social encouraging #CitizenScientists to share their #GardenWildlife sightings with us.

The group sitting on picnic benches around a table, next to the river

Last week, Biology and Geography students joined volunteer Ant Barraclough from #FriendsOfTheRiverWye to explore the River Wye! They monitored water quality and discovered local wildlife, like migrating Sand Martins from Africa! #RiverWye #CitizenScientists

Schmetterlinge Österreichs

Die #CitizenScience App „Schmetterlinge Österreichs“ von #BlühendesÖsterreich & #NaturimGarten hilft jetzt dank Machine Learning Tool 🤖 #CitizenScientists dabei, Schmetterlinge automatisch zu bestimmen. Jede Beobachtung hilft, bedrohte Schmetterlingsarten zu schützen. 🦋 www.schmetterlingsapp.at

Yesterday, I volunteered for @thames21.bsky.social taking #water samples at 2 locations on the #river Brent. They want to compare the analysis of samples taken by #citizenscientists (measured with Hannah checkers) with lab results. It was fun! & I met one of their volunteers who lives very close 🧪💦

A group of humans observing a frog in a net in a woodland.

A hand holding a dead mosquito.

A plastic lid holds some yellow mollusks and small bits of waterlogged wood.

A frog sits on a stick in a pool of water.

It’s #TuesdayInTheTrees so once again I ask…is there anything more fantastic than young #citizenscientists dipping cups, nets, and buckets in a local #vernalpool? Hint: That’s a rhetorical question… #WoodFrog #Tadpoles #Mosquitoes #MosquitoLarvae… #Nature #Forests #ElementaryEducation

Children collecting water in a vernal pool in a forest to investigate our living world.

A child's finger showing a mosquito larva.

A child’s finger behind a net showing a black beetle.

Children collecting water in a vernal pool in a forest to investigate our living world.

Is there anything more fantastic than young #citizenscientists dipping cups, nets, and buckets in a local #vernalpool? Hint: That’s a rhetorical question… #MosquitoLarvae #Worms #Beetles and more … #Nature #Forests #ElementaryEducation