Matthew Nielsen

(He/him, asexual) Junior professor at Uni-Bremen and Academy Fellow at UHelsinki. Phenotypic plasticity/climate change/urban evolution/temperature/Lepidoptera.

[Matthew Nielsen @drmatterpillar]

Take a look at our new paper on how the evolution of seasonal plasticity associated with climate change can vary between life stages, tested by recreating experiments from 35 years ago on Speckled Wood butterflies: https://t.co/AxXnSKC9tn @Ecology_Letters

[Matthew Nielsen @drmatterpillar]

@NKWhiteman @HannaDort This seems like a perfect connection! Enjoy Stockholm!

[YUFE - Young Universities for the Future of Europe @AllianceYufe]

🎯Join Matthew Nielsen (@drmatterpillar ) and Martin Wilkes (@wilkesma ) for a webinar on Research Networks: 19 March 2024, 16-17:30h CET
💡Register here: https://t.co/NYBsQJdDTB

[Eventbrite @eventbrite]

Coffee = an event organizer's best friend.

Happy #NationalCoffeeDay!

[Matthew Nielsen @drmatterpillar]

@Liz_C_Miller I don't know, but my guess is not much. From my own experience the 3 page statement is easier to write though. I agree with @AndersonEvolve that the room for more pictures is helpful.

[Dr. Akito Kawahara @Dr_Akito]

We're hiring again! #TenureTrack Curator/Professor Butterflies & moths. Special interest in those studying global change, popbio, ecology, evolution, invasives, development. Starting salary up to $105,000 USD Application review 1/5/24. Please Repost! @FloridaMuseum #McGuireCenter

[Dr. Akito Kawahara @Dr_Akito]

We're hiring! @FloridaMuseum #McGuireCenter is hiring a new #collections #manager, salary up to $70K. Soon we’ll also be posting a job opening for a #tenuretrack Assistant Curator/Prof; keep an eye out! Please share/repost! #butterflies #moths #museum | 👉https://t.co/gSU92xyKqh

[Matthew Nielsen @drmatterpillar]

I only just realized that my Helsinki email address in the job posting is incorrect. If you have questions, please contact me at the Bremen email address. (In my defense, this advertisement was first written before I actually had a Helsinki email.)

[Matthew Nielsen @drmatterpillar]

Just a friendly reminder that there are still 6 days left to apply for this position!

[Matthew Nielsen @drmatterpillar]

With @Marjo__S and @PauliinaRautio, I have an open PhD position for a project combining urban evolution of butterflies and science education research @helsinkiuni. https://t.co/6z82jHnZtx

[Matthew Nielsen @drmatterpillar]

With @Marjo__S and @PauliinaRautio, I have an open PhD position for a project combining urban evolution of butterflies and science education research @helsinkiuni. https://t.co/6z82jHnZtx

[Matthew Nielsen @drmatterpillar]

Temporal dynamics are everywhere for plasticity. This paper will help me write about that so much more clearly and has given me plenty of new ideas.

[Matthew Nielsen @drmatterpillar]

It's great to see some high-quality writing about the importance of time for phenotypic plasticity. This is a really important feature of plasticity that gets almost no attention.

[Staffan Jacob @StaffanJacob]

Just out in @Trends_Ecol_Evo: we need to go beyond reaction norms alone, integrating the temporal dynamics of phenotypic plasticity! Amazing discussions and work these last 2 years to end up with this! 🤩

[Matthew Nielsen @drmatterpillar]

For my own research on phenotypic mismatches, I usually deal with plasticity that can only happen during a single developmental transition (e.g., diapause that only begins at pupation). This is yet a different kind of temporal dynamic.

[Matthew Nielsen @drmatterpillar]

Because the PhD researcher will work directly with local school classes, this position does require the ability to speak Finnish.

[Matthew Nielsen @drmatterpillar]

With @Marjo__S and @PauliinaRautio, I have an open PhD position for a project combining urban evolution of butterflies and science education research @helsinkiuni. https://t.co/6z82jHnZtx

[Matthew Nielsen @drmatterpillar]

The project will work with local schools to test whether evolutionary changes in the life history and plasticity of urban butterflies are adaptive. It will also explore the potential of classroom research projects and urban evolution as teaching tools.

[Matthew Nielsen @drmatterpillar]

On the train to Prague for #BoB2023. First time for international rail travel and so far it's really nice! Super excited to spend a week nerding out about butterflies.

[Matthew Nielsen @drmatterpillar]

As a side note, this was my first attempt at a preregistered study (https://t.co/vUj8prWAE8) and possibly among the first published preregistered empirical studies in our field.
But, unsurprisingly, not everything went according to plan, and we discuss that in the paper.

[Matthew Nielsen @drmatterpillar]

Take a look at our new paper on how the evolution of seasonal plasticity associated with climate change can vary between life stages, tested by recreating experiments from 35 years ago on Speckled Wood butterflies: https://t.co/AxXnSKC9tn @Ecology_Letters

[Matthew Nielsen @drmatterpillar]

The difference could be tied to the different phenology of these populations (one has one generation per year, the other two), but that will take further research to understand!