Evolutionary biologist | Learning designer
South Africa
Joined September 2015
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How can you know if resemblance is the result of mimicry? We highlight three conditions in @FunEcology: 1) characterise a model, (2) identify a receiver with a percept of the model, (3) demonstrate the receiver exerts selection on the mimic. See free pdf bit.ly/2WGpd4C
Marinus de Jager retweeted
Have you viewed the colorful scrollable interactives on @LabXchange? The robust virtual lab simulations? We created those resources together with @HubbleStudiosZA in Cape Town, South Africa. We are so grateful for the efforts of this creative, dynamic team! #scicomm
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Launching today: The world needs scientists more than ever. @AmgenFoundation and @Harvard are working to transform #science education with the global launch of @Labxchange. It's #ScienceMadePossible, now for students around the world. Details here: bit.ly/2RGzfla
I'm lucky to have spent 2019 helping to design virtual simulations and scrollable animations like this one with @LabXchange and @HubblestudiosZA. Check out labXchange.org, its incredible!
#scienceeducation #CRISPR
Created at @Harvard, @LabXchange's scrollable animations help you learn about processes like #CRISPR at your own pace. #biology #STEMed
Marinus de Jager retweeted
A conceptual framework for understanding different forms of mimicry and how different selective pressures may act on mimics, models and receivers and shape these interactions. Nice one @MLdeJager (and Bruce)! I'm happy to see faecal mimicry permeates through the article 💩
Check out our new paper on Natural selection in #mimicry onlinelibrary.wiley.com/doi/…
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My #Lithops is flowering for the first time. The flowers only open with enough sunlight and warmth. #Aizoaceae #Succulents
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Our own, Dr. Jessica Silverman, introduced teachers to #LabXchange at the @WhiteheadInst Teacher Seminar Series. Saw some familiar faces in the audience! #scied #scichat
Marinus de Jager retweeted
Cool new paper! Anyone interested in mimicry should check this out
Check out our new paper on Natural selection in #mimicry onlinelibrary.wiley.com/doi/…
Marinus de Jager retweeted
2,624-year-old Tree Discovered in North Carolina Swamp Is One of the Oldest on Earth newsweek.com/2624-tree-north…
Check out our new paper on Natural selection in #mimicry onlinelibrary.wiley.com/doi/…
Marinus de Jager retweeted
LabXchange is looking for beta testers of our free online platform for science education! Fill out our survey and we'll contact you with instructions. #SciEd #sciencetwitter
harvard.az1.qualtrics.com/jf…
Marinus de Jager retweeted
Pollination, paternity, and mating portfolios in monkeyflower. 🐝 Hermaphroditic plants mate with different partners through male and female function. #bumblebee #pollination New paper by Dorothy Christopher, Randy Mitchell and Jeff Karron
FREE PDF doi.org/10.1002/ajb2.1336
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A Pantaloon bee (Dasypoda hirtipes) beginning to dig her nest before being bitten by an ant and deciding against it. North Cornwall, today. @NHM_Bees @CwallWildlife @Buzz_dont_tweet @StevenFalk1
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Why is the Cape flora so rich? Wuest etal suggest the mountain ranges = "islands", with immigration and diversification dynamics best fitting an archipelago model: most diversification and diversity in the central island, peripheral islands spp poor. onlinelibrary.wiley.com/doi/…
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Did you ever want to know what's hiding under my spathe? My intrepid IT gadget minion @duncanreddish has you covered. I've never seen my insides quite like this before...
Female flowers at the bottom, (orange), male ones above them (yellow) and the base of my spadix at the top!
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Bruce Anderson presenting very cool work on studying reproductive isolation using quantum dots in plants pollinated by long-tongue flies. #Evol2019
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How vaccines reduced measles deaths in each state of the U.S. [Measles in the U.S. was almost eliminated with the vaccination programme starting in 1963] bit.ly/2DnXRaE
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A new study in Nature disproves a long-standing idea that multi-celled animals evolved from a single-celled ancestor resembling a modern sponge cell. Instead, it was probably quite similar to a stem cell. Read the paper here: go.nature.com/2ZqVKwF
Marinus de Jager retweeted
The speed of a hairy frogfish’s bite is the result of a vacuum in its mouth that can suck in its prey in just 1/6000th of a second. It’s so fast that even slow-motion video struggles to capture it buff.ly/2IqJSUo
Marinus de Jager retweeted
New paper from @BioInteractLab explores how biologists can confirm mimicry. They highlight the need to identify models, receivers, and evidence that receivers exert selection on mimics bit.ly/2WGpd4C @FunEcology @siencelibSUN @noxthelion @marinajoubert @GeorgeClaassen – at Cape Town, South Africa
