Dr. Isabel Dove

Antarctic Research Vessel Letter of Support If you are a scientist interested in adding your name to our letter in support of the US Antarctic Program Research Vessel Capabilities, please email one of the following organizers by July 28th, 3:00...

Did you know there is a plan to terminate the lease of the NB Palmer, the US icebreaker supporting Antarctic science?

@carlosmoffat.com

docs.google.com/document/d/1...

NSF, NASA and NIH budgets per year, inflation adjusted from 2000-2025 along with the proposed cuts. NSF includes research component only. Massive cuts across all sectors, well below support spanning 25 years.

How bad will it be? Catastrophic.

Proposed cuts to #NSF, #NIH, and #NASA will set the US R&D landscape back 25 yrs+, cause economic and job loss now, and undermine innovations to come.

But, this is the WH's *proposed* budget.

Speak up now before it is too late.

(inflation adjusted $-s below)

These ancient climates, to which we have now returned, are not incompatible with a living world. But they are incompatible with the world we have created. And the speed with which we have reversed 10 million years of Earth history leaves almost no time for us or the rest of Earth's life to adapt.

Insulin was also discovered in Canada! I walked by a Banting Street the other day, presumably named after Frederick Banting, one of the co-discoverers. A small example of how Canada celebrates its scientists. Support for science is one of the major reasons why I moved here. (n/n)

The above examples involve managing T1D. As the quoted thread points out, insulin is the only *treatment*. Insulin is famously more affordable in Canada than the US (4/n)

Next is walkability. Walking is one of the best strategies to help me keep my blood glucose levels in range. The pedestrian safety features and access to public spaces here way better than anywhere I’ve lived before - but it should be noted I now live in a bigger city than I have previously (3/n)

First is food prices. I’m not sure if this is generalizable across Canada and the US, but my grocery bill here is cheaper, even before factoring in the exchange rate between CAD and USD. The prime example is the cost of eggs (high protein low carb), around CAD$4/dozen here (2/n)

I have type 1 diabetes, moved to Canada from the US less than a week ago, and have already noticed several structural differences - none involving cooking classes - that help make managing diabetes easier (1/n)

Most Americans use federal science information on a weekly basis, a new poll finds Most Americans frequently use federal science information. But few are concerned that cuts to federal science spending could affect their access to such information, a new poll finds.

NOAA powers the forecasts on your phone, the maps you trust, the alerts that save lives. It tracks storms, monitors climate, protects coasts, and fuels research across America.

Most people use NOAA data daily—without even knowing it.

Tell Congress: invest in what matters. #SaveNOAA

Photo of a large crowd outside of a city hall building. Many people hold up signs in protest and a rainbow flag waves in the top right corner

Photo of a cardboard sign with “I’m an introvert so if I’m out here it’s hella serious!” written in large black letters. Other protestors and signs are visible in the background

Huge crowd and strong sign game in West Chester, PA! So energizing to see so many people speaking out against hate and standing up for democracy #HandsOff

Blurry photo taken through the ocular lens of an inverted microscope. A chain of Chaetoceros socialis diatoms are visible in the center of the frame

Perhaps the coolest thing about this work is that, in order to conduct culture experiments with Chaetoceros resting spores, I “resurrected” resting spores from Southern Ocean sediment. Zombie diatoms!!

But, the good news is that shifting relative abundance of resting spores over glacial-interglacial cycles does not significantly impact published diatom-bound N isotope records

We found that a common type of diatom, Chaetoceros resting spores, record low diatom-bound nitrogen isotope values relative to other diatoms, which could potentially bias paleo records and lead to underestimates of Southern Ocean biological pump efficiency over time

Chaetoceros Resting Spores Do Not Significantly Bias Sedimentary Diatom‐Bound Nitrogen Isotope Records Despite Distinctly Low Values Chaetoceros resting spores record δ15NDB values lower than other diatoms in marine sediment and in laboratory culture The N isotopic offset of Chaetoceros resting spores relative to other diatoms...

Another new paper alert! 🌊🧪
SO happy to finally see this work from my PhD published!
agupubs.onlinelibrary.wiley.com/doi/10.1029/...

Keep an eye out for future work related to silicification and diatom-bound N isotopes from our recent Southern Ocean research cruise!

However, one species of diatom differed significantly in its isotopic offset between biomass and diatom-bound N. Its N:Si uptake and frustule nitrogen content also differed from other species, suggesting a possible influence of silica acquisition on sedimentary diatom-bound N isotope signatures

Led by Becky Robinson and Colin Jones, we present results from diatom culture experiments showing that nitrogen isotopic signatures are largely consistent between different diatom species, which further validates the use of diatom-bound N isotopes as a paleoproxy for nitrate supply and demand

Monospecific Diatom Cultures Suggest Potential Interspecies Variation of Diatom‐Bound Nitrogen Isotope Signatures Associated With Silica Acquisition Diatom-bound nitrogen isotope values are higher than diatom biomass values in six of seven monospecific cultures grown Fragilariopsis rhombica recorded lower diatom-bound nitrogen isotope values ...

Celebrating some good science-related news today with a new paper alert! 🌊🧪
agupubs.onlinelibrary.wiley.com/doi/10.1029/...

I may or may not have done more math while making this sweater pattern than while doing a PhD and am thrilled with the result! It was fun and rewarding to combine my love of knitting and diatoms 🥰

Some species of the Chaetoceros genus form a unique life stage, known as a resting spore, in response to stress. A major focus of my PhD research was investigating how the geochemical signature of resting spores influences records used for paleoceanographic reconstructions.

Photo of a hand-knit light blue sweater, zoomed in on the yoke. The yoke features moss stitch rectangles and cables representing Chaetoceros diatoms

Photo of a hand-knit light blue sweater, zoomed in on the bottom hem. Small bobbles are distributed around the wrist and waistband, representative of Chaetoceros resting spores

Photo of a white woman with brown hair wearing a hand-knit sweater. The sweater is light blue, has a design intended to look like Chaetoceros diatoms around the yoke, and bobbles around the waistline and wrists

One thing bringing me joy during these dark days is my diatom sweater! I designed and knit this sweater as part of my #KnitYourPhD project. The yoke is adorned with Chaetoceros diatoms and the bobbles around the hemline are meant to represent Chaetoceros resting spores 🧶🌊🧪

Looking for physical scientists 🧪⚒️ who do fieldwork, who've had bad experiences w/ "medical screening" or "physical qualifying (PQ)" exams & restrictions.

Stereotypes used against you, disqualified w/o consultation, etc.

We're putting together a book. A new vision how PQ should work. DMs open. 📖

Application — paleoCAMP

The application is now open for paleoCAMP 2025 (Paleoclimate Training in Climate Archives, Models, and Proxies)! For graduate students in any area of paleoclimatology, our 2 week summer school is timescale agnostic and multidisciplinary - please apply or share widely! paleoclimate.camp/apply

I just posted the pattern for these socks on Ravelry: www.ravelry.com/patterns/lib...
Not sure who else besides me would ever want to make them, but I believe in #OpenAccess! The DOIs to the datasets are also linked in the pattern 😊

Happy Halloween from NBP24-10! I am Ekman drift, obviously 🌊

Photo of the Nathaniel B Palmer research vessel in port in Punta Arenas. The ship’s orange bow with PALMER written in blue is on the left side, and the sea, the town, and a rainbow are on the right side

Lots of science and adventure happening for the next 6 weeks! #nbp2410 🌊 🇦🇶

Amazing 😍

Incredible!! Here are 2 of my chapters in knit sock form

The 5 colors represent a range of oxygen isotope values and each row represents 15,000 years. Lighter colors correspond to lower values (higher temp and less ice) while darker colors are higher values (colder and more ice)

Photo of a knit blanket with grey and blue stripes

Graph of the benthic oxygen isotope stack from Lisiecki & Raymo (2005). Age (thousands of years ago) on the x-axis and d18O on the y-axis

People seem to like my KnitYourPhD socks, so I thought I’d share my first paleo-inspired knit! This blanket represents the benthic oxygen isotope stack, a famous paleoceanographic dataset showing the evolution of global temperature and ice volume over the past 5.3 million years 🧶🌊