Chris Berglund
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chrisberglund.bsky.social
Chris Berglund
@chrisberglund.bsky.social
530 followers 280 following 160 posts
PhD student at @uniofstandrews.bsky.social and @seamammalresearch.bsky.social looking at gray seals in Britain . Hidden Markov models, habitat use, etc
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Reposted by Chris Berglund
jessmontabaranom.bsky.social
🦭 Last week, I presented our recent work on evaluating the risk of seals colliding with tidal turbines at @seamammalresearch.bsky.social, at the @mastscot.bsky.social conference.

If you’re interested in hearing more, read the preprint here: shorturl.at/76VSb !
November 24, 2025 at 11:50 AM
Reposted by Chris Berglund
trevorabranch.bsky.social
Annual plug for the fabulous phylopic.org website with tens of thousands of easily searchable silhouette images for almost every life form imaginable. They make nice additions to your biology plots!
November 3, 2025 at 5:03 PM
chrisberglund.bsky.social
I’m always interested in anything that talks about sexual dimorphism in otariids. Look up some comparisons of male and female fur seals, it’s wild.
coastalpaleo.bsky.social Robert Boessenecker, Dr. of Whaleontology ™️ @coastalpaleo.bsky.social · Oct 20
New blog post, and it's a long one: all about the fossil record and evolution of "eared seals" - or, the fur seals and sea lions. I review their anatomy, current and former diversity, phylogeny, macroevolutionary patterns, and sexual dimorphism. 🦖🦑🐬🧪 #marinemammals #paleontology #evolution
The fossil record and evolution of fur seals and sea lions - the family Otariidae
A life restoration of the early fur seal Pithanotaria , hiding within a kelp forest off the California coast during the late Miocene. Artwor...
coastalpaleo.blogspot.com
October 20, 2025 at 4:33 PM
chrisberglund.bsky.social
An otters’ favorite pastime. From the photo, it looks like the otter isn’t tagged. Otter 841 and some earlier miscreants had received some amount of human care, so it would be interesting if this is a completely wild water weasel thats getting in on the thieving.

www.ksbw.com/article/sea-...
Sea otter steals surfer’s board in Santa Cruz; woman uninjured
Santa Cruz firefighters tell KSBW 8 that a sea otter took a woman’s surfboard around 5:07 p.m. and may have nipped at her, but did not break the skin. Firefighters pulled her to shore.
www.ksbw.com
October 16, 2025 at 3:07 AM
Reposted by Chris Berglund
drmichellelarue.bsky.social
Join Mia Wege and me to study niche partitioning among three Antarctic mesopredators!

Fully-funded PhD opportunity at U Canterbury, please email [email protected] if you're interested!

Applications will be reviewed until filled.
Fluffy Weddell seal pup looks straight into the camera We are seeking a motivated PhD student to investigate how multiple mesopredators share space and resources in the Southern Ross Sea. The project will address questions about niche partitioning (both spatial and temporal) and foraging ecology in the Southern Ocean using three years of animal tracking data deployed on penguins (n = 60) and seals (n = 30). Specifically, we wish to uncover aspects of three-dimensional space use in Adélie penguins, emperor penguins, and Weddell seals at Cape Crozier, in the southern Ross Sea. There exists one of the largest colonies of Adélie penguins, a small colony of emperor penguins, and a small group of Weddell seals. We ask: How are these animals using the same space at the same time? How can that part of the ocean support hundreds of thousands of central-place foragers in a relatively small foraging halo, during the short summer window of time? Answers to these questions will provide fine-scale insights as part of the larger project which seeks to understand the metacommunity structure of marine mesopredators in the Southern Ocean and will inform conservation in the Ross Sea Marine Protected Area (one of the largest in the world). With the first 10-year evaluation of the MPA coming up, this project will have immediate real-world impact. We cannot guarantee Antarctic field work as part of the PhD project. Funding: Rutherford Discovery Fellowship ($27,000 NZD/year for three years + fees), plus potential school-supported (School of Earth and Environment) conference travel opportunities. Requirements: Bachelor’s and Master’s degree in Ecology, Marine Biology, Geography, Zoology or Statistics required; good communication skills (written and verbal), with previous publication experience a bonus; strong work ethic, strong initiative, and team attitude; previous experience handling biologging data (in any system), large datasets, and data wrangling a plus.
September 15, 2025 at 1:19 AM
Reposted by Chris Berglund
djnavarro.net
At the risk of stretching the imagination beyond the limits of human endurance, the reader is asked to pretend that the author is interested in splines #rstats
Splines, B-splines, P-splines, and a disapproving kitten – Notes from a data witch
No, I do not care about splines. But I am trying to learn about GAMLSS regression, and yes, it is to this dark place that this topic has taken me
blog.djnavarro.net
September 8, 2025 at 1:41 AM
Reposted by Chris Berglund
smruinstrument.bsky.social
🚀 Upcoming Talk! 🚀

Dr Lars Boehme from SMRU (@seamammalresearch.bsky.social) will share how SMRU Instrumentation tags and seals can help advance marine science. 🦭

📍 Discovery Point, Dundee.
📆 Sat 13 & Sun 14 September
🕧 12:30 pm both days

More info: www.dundeeheritagetrust.co.uk/event/how-se...
Getting the Seal of Approval: Marine Animals as Ocean Scientists - Dundee Heritage Trust
From weather forecasting to understanding climate change, Dr Lars Boehme from the Sea Mammal Research Unit will discuss how seals can help us.
www.dundeeheritagetrust.co.uk
August 28, 2025 at 10:32 AM
Reposted by Chris Berglund
lsantinieco.bsky.social
SDMs are powerful tools, but only if feed them with the right variables (be biologists, not blind programmers!). We show how data dredging approaches relying on the 19 bioclimatic variables can lead to misleading predictions & interpretation. Led by @giordanomancini.bsky.social
shorturl.at/Y2BpC
August 12, 2025 at 7:08 PM
chrisberglund.bsky.social
A southern sea otter munching on a fat innkeeper worm
A southern sea otter on its back eating a fat innkeeper worm
August 4, 2025 at 5:51 PM
Reposted by Chris Berglund
annaghughes.bsky.social
Just trust me on this one 🐟🐠🐡

drawafish.com
Draw a Fish Dot Com
Draw and create your own fish. Share your fish creations, vote on others, and watch them swim.
drawafish.com
July 25, 2025 at 4:56 AM
chrisberglund.bsky.social
@marinemammalogy.bsky.social taxony committee decided to elevate the Saimaa ringed seal subspecies to its own species, bringing the number of extant pinniped species to 35!
July 21, 2025 at 6:18 PM
Reposted by Chris Berglund
afredston.bsky.social
one signature of human impacts on the planet (esp climate change) is ecosystems becoming less unique—a process called "biotic homogenization".

it turns out that isn't happening in the global oceans!

colossal new synthesis led by @zoejean88.bsky.social on marine fishes:

doi.org/10.1371/jour...
Most marine communities around the world do not have any change in beta-diversity. Some are becoming more homogenous, but some are also becoming more differentiated. Fig. 1 from Kitchel et al. 2025 PLOS Climate.
July 9, 2025 at 9:22 PM
Reposted by Chris Berglund
drandrewthaler.bsky.social
Zeroing out OAR is an absolute travesty.
tdiliberto.bsky.social Tom Di Liberto @tdiliberto.bsky.social · May 30
Trump's Budget is out. For NOAA, it's exactly what the previous passback document showed.
Trump administration eliminations NOAA's Office of Oceanic and Atmospheric Research in its ongoing fight against science and reality.

www.govinfo.gov/content/pkg/...
Table showing FY26 budget numbers for NOAA from the Trump Administration.
May 30, 2025 at 10:45 PM
Reposted by Chris Berglund
lrendell.bsky.social
New paper 🚨 very excited to see Angela Amlin's first PhD paper confirming the underwater vocal repertoire of Mediterranean monk seals published 🦑🦭🐋 @gordonhastie.bsky.social @joan-gonzalvo.bsky.social @seamammalresearch.bsky.social pubs.aip.org/asa/jasa/art...
Confirmed vocal activity of Mediterranean monk seals in the Inner Ionian Sea Archipelago, Greece
Mediterranean monk seals (Monachus monachus) are the world's rarest seal species, with fewer than 1000 individuals remaining across fragmented subpopulations. M
pubs.aip.org
May 29, 2025 at 10:47 AM
Reposted by Chris Berglund
seaottersavvy.bsky.social
With sadness and respect, we honor the legacy of Dr. Jim Estes, who passed away this week. A pioneer of marine ecology, Jim’s groundbreaking work transformed our understanding of ecosystems and the essential role of keystone predators like sea otters. He is an icon in sea otter research. 🧵👇
May 21, 2025 at 7:36 PM
chrisberglund.bsky.social
E-mail [email protected] if you use any of these important data products and urge for their continued support.
zacklabe.com Zack Labe @zacklabe.com · May 6
This is horrible. I don't even know what to say. Some of our most key polar data.

"As a result, the level of services for affected products below will be reduced to Basic—meaning they will remain accessible but may not be actively maintained, updated, or fully supported."

nsidc.org/data/user-re...
Effective May 5, 2025, NOAA’s National Centers for Environmental Information (NCEI) will decommission its snow and ice data products from the Coasts, Oceans, and Geophysics Science Division (COGS). As a result, the level of services for affected products below will be reduced to Basic—meaning they will remain accessible but may not be actively maintained, updated, or fully supported. This includes Sea Ice Index, Snow Data Assimilation System (SNODAS) Data Products, Glacier Photograph Collection, U.S. National Ice Center Arctic Sea Ice Charts and Climatologies in Gridded Format Gridded Monthly Sea Ice Extent and Concentration, 1850 Onward World Glacier Inventory. If you rely on these products in your work, research, education, or planning, we invite you to share your story at nsidc@nsidc.org. Your input can help us demonstrate the importance of these data sets and advocate for future support.
May 6, 2025 at 8:33 PM
Reposted by Chris Berglund
zacklabe.com
Oh no! Several of the Regional Climate Centers have had their funding lapse through DOC/NOAA. These institutes are critical for connecting weather and climate data and services to local communities across the United States.

Spread the word to drive attention and support!
Funding for the Regional Climate Center program lapsed on April 17, 2025 due to a suspension of federal funding from NOAA through the Department of Commerce. It is unknown if or when funding will resume. All data and services offered under the HPRCC contract, including this website, are unavailable. If there are particular products and services you rely upon, please fill out this form so we can identify products to prioritize for continuance. Unfortunately, some products will be discontinued indefinitely because of their association with the Regional Climate Center program. Support for all MRCC-hosted products and services is currently suspended as of April 17, 2025, due to a lapse in federal funding from the Department of Commerce through NOAA. Federal funding for the Regional Climate Center program lapsed on April 17, 2025. It is unknown when or if funding will resume, pending decisions by NOAA and the Department of Commerce. If there are particular products and services that you rely upon, please contact us at sercc@sercc.com or reach out to your federal representatives and communicate their value and why you need them.
April 17, 2025 at 11:29 AM
Reposted by Chris Berglund
arxiv-stat-me.bsky.social
Fanny Dupont, Marianne Marcoux, Nigel Hussey, Marie Auger-M\'eth\'e
Improved order selection method for hidden Markov models: a case study with movement data
https://arxiv.org/abs/2411.18826
December 2, 2024 at 5:02 AM
Reposted by Chris Berglund
phoca-sapiens.bsky.social
Declines in the water level of the Caspian Sea driven by climate change will hit biodiversity & human populations hard. A decline of 5-10m will threaten ecosystem integrity, reduce coverage of marine protected areas by up to 94% & compromise key infrastructure. www.nature.com/articles/s43... 🧪🌏🦭🐋🦑
Rapid decline of Caspian Sea level threatens ecosystem integrity, biodiversity protection, and human infrastructure - Communications Earth & Environment
Water level declines of 5−10m in the Caspian Sea will threaten ecosystem integrity, compromise human infrastructure, and reduce marine protected area coverage by 94%, according to bathymetric maps of ...
www.nature.com
April 10, 2025 at 9:06 AM
Reposted by Chris Berglund
globalchangebio.bsky.social
Postglacial Recolonization of the Southern Ocean by Elephant Seals Occurred From Multiple Glacial Refugia

📄 buff.ly/rFfrPIO
#ancientDNA #phylogenetics
April 7, 2025 at 7:51 PM
chrisberglund.bsky.social
Excellent paper from @chrismcknight.bsky.social and the excellent people at SMRU
seamammalresearch.bsky.social SMRU @seamammalresearch.bsky.social · Mar 21
Ever wondered why seals don't drown? New groundbreaking research from @smruecophys.bsky.social led by @chrismcknight.bsky.social published in @science.org reveals that, unlike other mammals, seals can sense blood oxygen levels.
Paper: www.science.org/doi/10.1126/...
Grey seal in the water
March 21, 2025 at 3:12 PM
Reposted by Chris Berglund
trevorabranch.bsky.social
How mathy folks at NOAA are an absolutely critical part of managing the biggest home-grown fishery in the US.
Video by Jim Thorson and others

www.instagram.com/p/DHJi4rJhbrp/
Login • Instagram
Welcome back to Instagram. Sign in to check out what your friends, family & interests have been capturing & sharing around the world.
www.instagram.com
March 13, 2025 at 8:19 PM
chrisberglund.bsky.social
I feel like the simpler an explainer of a statistical method claims to be, the more impenetrable it actually is. I found a simple introduction to INLA that has more Greek characters than the Odyssey
March 11, 2025 at 7:16 PM
Reposted by Chris Berglund
marinemammalogy.bsky.social
For the full statement, please visit the Society for Marine Mammalogy's webpage: marinemammalscience.org/diversity-in...

#SMM #marinemammalscience #missionstatement
March 11, 2025 at 1:13 AM