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Posts by Krijn Paaijmans

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Your gift on #SunDevilGiving Day will help support students and the amazing work of the Center for Evolution & Medicine
@evmedasu.bsky.social! We have $2k match, which means your support goes twice as far! Check out the really impactful evolutionary medicine work we do at CEM here: evmed.asu.edu

1 month ago 0 1 0 0
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Dengue Suppression by Male Wolbachia-Infected Mosquitoes | NEJM Wild-type female Aedes aegypti mosquitoes that mate with male A. aegypti mosquitoes that have been infected with the wAlbB strain of Wolbachia pipientis bacteria produce nonviable offspring owing t...

Extremely impressive results from large-scale in Singapore - release of Wolbachia-infected male Aedes reduces Dengue risk by 72%

Dengue Suppression by Male Wolbachia-Infected Mosquitoes | New England Journal of Medicine share.google/Xrtk9L6emyhx...

2 months ago 9 3 0 0
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Australian tropical rainforest trees switch in world first from carbon sink to emissions source Researchers say carbon emissions change in Queensland tropical rainforests may have global climate implications

This research paper is the first time that a tipping point of a switch from a carbon sink to a carbon emission source in tropical rainforests has been identified clearly – not just for one year but for the last 20 years. Cause is a change in the local climate. www.theguardian.com/environment/...

2 months ago 3047 1192 107 90
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Forest loss is driving mosquitoes’ thirst for human blood In the rapidly disappearing Atlantic Forest, mosquitoes are adapting to a human-dominated landscape. Scientists found that many species now prefer feeding on people rather than the forest’s diverse wildlife. This behavior dramatically raises the risk of spreading dangerous viruses such as dengue and Zika. The findings reveal how deforestation can quietly reshape disease dynamics.
3 months ago 0 1 0 0
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Want to get the data out of a PDF figure? As in, the actual data – not a rough trace-along-the-lines version?

I made an app you might like: adamkucharski.github.io/pdf2plot/

It all started a few years ago... 🧵

3 months ago 480 183 18 22
Recruitment poster for 12 botanical or entomological field surveyors, April-September 2026. Closing date: January 30, 2026.

Recruitment poster for 12 botanical or entomological field surveyors, April-September 2026. Closing date: January 30, 2026.

🦋🌿Hiring 12 x Botanists or Entomologists for 2026 field surveys in England!

4-month, full-time roles from late April to early September.

Field sites in Yorkshire, Devon, Warwickshire, Kent/Sussex, Lincolnshire/Cambridge, Essex/Suffolk.

Apply now: ceh.wd3.myworkdayjobs.com/en-US/CEH_Ca... 🧪

3 months ago 61 88 1 5
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Does predictability matter for adaptation? In fruit flies, predictable thermal variation favors evolved longevity, while unpredictable environments impose survival and reproductive costs—revealing distinct routes to adaptation under climate change. Image: Wikimedia
academic.oup.com/evlett/advan...

3 months ago 10 8 0 0
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New climate data raises questions about how much the Earth has warmed: https://cnn.it/44YS8pM

4 months ago 53 12 5 5
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We are excited to invite abstract submissions for talks and posters for the 2026 Ecology and Evolution of Infectious Diseases meeting at Virginia Tech (June 2-4). Abstract submissions should be made by February 3, 2026 for consideration, using the google form here: cpe.vt.edu/eeid2026/abs...

4 months ago 16 15 2 2
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Pathogens spread by high-flying wind-borne mosquitoes | PNAS Mosquito-borne diseases such as malaria and dengue threaten billions of people and cause the death of hundreds of thousands annually. Recent studie...

www.pnas.org/doi/10.1073/...

4 months ago 5 1 0 0
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#ArtificialIntelligence may be fuelling a surge in letters to scientific journals.

A study by Carlos Chaccour and Matthew Rudd finds “prolific debutante” authors likely using #AI to mass-produce submissions.

Learn more in @science.org: 🟠https://f.mtr.cool/natqzgbtau

#Research #Science

5 months ago 3 1 0 0
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Landscapes associated with Japanese encephalitis virus in Australia reflect the functional biogeography of waterbirds Japanese encephalitis virus (JEV), a zoonotic, mosquito-borne virus, has broad circulation across the Central Indo-Pacific biogeographical region (CIPBR) and has recently expanded dramatically within...

New work with my fantastic colleagues, Viki Brookes and @mozziebites.bsky.social - Landscapes associated with Japanese encephalitis virus in Australia reflect the functional biogeography of waterbirds: dx.doi.org/10.1002/ecs2...

5 months ago 8 5 0 1
eBRAP Online Application Submission

🚨 DWFP Research Funding Alert! Apply for the DOD FY26 Deployed Warfighter Protection Program. Seek innovative research to protect troops from disease vectors. Max $975K. Pre-Application Due: Nov 5, 2025. Learn more on eBRAP: ebrap.org #DODResearch #VectorControl

6 months ago 1 2 0 0

Our paper Genomic diversity of the African malaria vector Anopheles funestus was published in Science today! It features inversions, selection in action, museum specimens and putative new ecotypes. doi.org/10.1126/scie...

7 months ago 63 33 3 3
"Health losses attributed to anthropogenic climate change," a brief communication in the journal Nature Climate Change. There's a map showing regions of the world, and pie charts of relevant studies as they apply to different health impacts like "heat-related deaths" and "maternal and child health"

"Health losses attributed to anthropogenic climate change," a brief communication in the journal Nature Climate Change. There's a map showing regions of the world, and pie charts of relevant studies as they apply to different health impacts like "heat-related deaths" and "maternal and child health"

🚨 NEW: Climate change is already causing 30,000 deaths per year - a global annual economic loss of $100-350B USD - but the true damage is probably 10x higher. Out TODAY in Nature Climate Change: the first systematic look at the science of "health impact attribution" 🔓 www.nature.com/articles/s41...

7 months ago 878 502 22 34
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The National Weather Service in Phoenix issued both dust storm and severe thunderstorm warnings as the system pushed into Maricopa County. The weather service warned drivers of near-zero visibility and urged people to "pull aside stay alive." https://cnn.it/45yL3Nt

7 months ago 97 35 8 4
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Discovery and description of a novel mode of oviposition in the mosquito genus Culex Scientific Reports - Discovery and description of a novel mode of oviposition in the mosquito genus Culex

I am back with great news. A project by a former undergrad, Liz Wynne, is now out in publication. In it she discovered a mosquito in the genus Culex that lays eggs from the air (like a Toxorhynchites) and exhibits skip oviposition (spreading eggs around). An amazing discovery! 🦟🍾
rdcu.be/eBkFM

7 months ago 78 28 2 1
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Vector competence for Oropouche virus: A systematic review of pre-2024 experiments Oropouche virus has recently become an urgent threat to public health in Central and South America. OROV is mainly transmitted by biting midges; however, some public health agencies and scientific sou...

🦟🦠 NEW! We looked at every experiment going back to the 1960s, and found that mosquitoes are almost certainly not primary or secondary vectors of Oropouche virus - a common claim in both the scientific literature and public health communication. #EpiSky #IDSky 😷🧪

journals.plos.org/plosntds/art...

11 months ago 110 39 7 3
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Thrilled to have been awarded ASU's Centennial Professorship Award for outstanding leadership and instruction both within and beyond the classroom. I’d like to thank my team and collaborators, Dr. Silvie Huijben and her team, and all (under)graduate award reviewers.

11 months ago 2 0 1 0
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🧵1/ Introducing ExpBites, a lightweight #rstats 📦 to analyze mosquito biting exposure according to hourly activities and locations of human and #mosquitoes. Built for modeling true expected #bednet efficacy.🦟⛺️

📦 GitHub: buff.ly/tImDQdv
🎚️ Shiny app: buff.ly/t9oMOwv

#malaria #anopheles

11 months ago 12 4 1 2
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Modelling the effects of diurnal temperature variation on malaria infection dynamics in mosquitoes - Communications Biology Mechanistic modelling of the effects of diurnal temperature variation on Plasmodium falciparum sporogony indicates this variation is important in the laboratory, but further validation is required to ...

As we try to understand how climate change impacts malaria @isaacstopard.bsky.social looked how daily temperature fluctuations impact development in mosquitoes. Quite a bit it seems, but still unclear in wild mosies. Lovely data from Antoine Sanou but we need more! www.nature.com/articles/s42...

1 year ago 26 10 1 0
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The Sweetest Snack: Research Details Mosquitoes' Nectar Preferences Mosquitoes drink nectar (not just blood), but do they prefer certain plants? A new research review shows mosquitoes do indeed have nectar preferences.

Mosquitoes drink nectar (not just blood), but do they prefer nectar from some plants over others? A new research review shows mosquitoes do indeed have nectar preferences, which researchers say can inform placement of attractive targeted sugar baits in mosquito control efforts.

1 year ago 12 5 0 0

PhD position (Karlsruhe, Germany)
Nowcasting and short-term forecasting of infectious diseases
with Johannes Bracher
at @kit.edu
More details: http://iddjobs.org/jobs/2296

1 year ago 0 1 0 0

PhD position/PostDoc (Cape Town, South Africa)
Research Officer in Infectious Disease Modelling
at University of Cape Town
More details: http://iddjobs.org/jobs/2294

1 year ago 0 3 0 0
World map showing origin of the data

World map showing origin of the data

Our study ‘The global human impact on biodiversity’ is out in Nature!

Through an unprecedented synthesis (2133 studies!) we show that humans are not only shrinking species numbers—but reshaping entire communities across the planet. 🌍🌐🐟🌿🪲

www.nature.com/articles/s41...

1 year ago 170 77 3 5

[preprint] Determinants of presence and abundance of the tiger #mosquito Aedes albopictus 🦟 in the city of Montpellier, France
- role of urban veg 🌿
- lagged effects of meteo🌦️
- micro-climate🌡️
🌐🧪

1 year ago 15 3 0 0
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Larval competition between the invasive Aedes aegypti (Diptera: Culicidae) and the Caribbean endemic Aedes mediovittatus (Diptera: Culicidae) from Puerto Rico, USA Abstract. Competition between mosquito species during the larval phase is a well-established mechanism structuring container mosquito communities, with inv

🦟🧪Our paper on larval competition between Aedes aegypti and Aedes mediovittatus, a Caribbean endemic, is out! In it, we show that the endemic appears to be the superior competitor, and this may explain why Ae. aegypti is restricted to cities on the island. academic.oup.com/jme/article-...

1 year ago 31 8 2 0
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A late #MESACorrespondent addition for today and tomorrow's 2nd @womeninmalaria.bsky.social Conference!

📍Spot Akua Obenewaa Yirenkyi Danquah, reporting from Ghana, added to the announcement image below!

Reports added daily here➡️
mesamalaria.org/reports/2nd-...

Stay up-to-date!

1 year ago 3 1 0 1
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A screenshot of the Review article titled '(Limited) Predictability of thermal adaptation in invertebrates' by James deMayo and Gregory Ragland

A screenshot of the Review article titled '(Limited) Predictability of thermal adaptation in invertebrates' by James deMayo and Gregory Ragland

Evolutionary genetics studies are often used to predict how species may adapt to climate change. In their recent Review, deMayo & Ragland discuss why these studies are only somewhat useful for predicting how invertebrates will respond to climate change

journals.biologists.com/jeb/article/...

1 year ago 3 5 0 1
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Mapping the global prevalence, incidence, and mortality of Plasmodium falciparum and Plasmodium vivax malaria, 2000–22: a spatial and temporal modelling study The unprecedented investment in malaria control since the early 2000s has averted an enormous amount of malaria burden. However, case incidence rates in Africa have flattened, and with a rapidly growi...

Results show ongoing plateau in malaria infection prevalence & case incidence in sub-Saharan Africa, with no consistent improvement since 2015. But malaria deaths continued to decline in sub-Saharan Africa after 2015, except for the COVID-19-impacted yrs of 2020–22
www.thelancet.com/journals/lan...

1 year ago 5 2 0 0