Frederic Dulude-de Broin

Dr. Jane Goodall filmed an interview with Netflix in March 2025 that she understood would only be released after her death.

Excited to share our new paper in @esajournals.bsky.social Ecology! ❄️
Our 17-year study shows that even moderate winter events (rain-on-snow, melt-feeze) can negatively influence lemming winter reproduction and population growth. 🐹
Open-access available here: 🔗 doi.org/10.1002/ecy....

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.

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...

Kurt Vonnegut tells his wife he's going out to buy an envelope: "Oh, she says, well, you're not a poor man. You know, why don't you go online and buy a hundred envelopes and put them in the closet? And so I pretend not to hear her. And go out to get an envelope because I'm going to have a hell of a good time in the process of buying one envelope. I meet a lot of people. And see some great looking babies. And a fire engine goes by. And I give them the thumbs up. And I'll ask a woman what kind of dog that is. And, and I don't know. The moral of the story is — we're here on Earth to fart around And, of course, the computers will do us out of that. And what the computer people don't realize, or they don't care, is we're dancing animals. You know, we love to move around. And it's like we're not supposed to dance at all anymore."

Kurt Vonnegut man

Migratory Birds Advance Spring Arrival and Egg‐Laying in the Arctic, Mostly by Travelling Faster A warming climate is affecting the phenology of life on earth, including when birds migrate and start breeding. We show that earlier arrival is a general pattern also for birds travelling to the Arct...

📄 New Paper!

Migratory Birds Advance Spring Arrival and Egg-Laying in the Arctic, Mostly by Travelling Faster doi.org/10.1111/gcb....

@globalchangebio.bsky.social @mpi-animalbehav.bsky.social @animaltracking.bsky.social

Born on March 29, 125 years ago:
One of the most influential ecologists of the 20th century and the father of animal ecology, who turned natural history into a science: Charles Sutherland Elton (1900-1991).
A birthday thread… 🧵[1/8]

These behavioral shifts could impact predator-prey dynamics, as territoriality shape both predator density and the areas where they focus foraging efforts.

Non-territorial foxes avoided foraging and caching prey in areas with high encounter probability, likely to reduce cache theft

In contrast, territorial foxes were less affected by encounter risk and cached prey slightly more at the edges of their territory, suggesting they don't avoid interactions

Using GPS and accelerometry data, she found that territoriality varied among individuals. Some successfully excluded neighbors from parts of their home range, while others could not. This shaped how they behaved when at risk of encountering neighbors.

Territoriality Modulates the Effect of Conspecific Encounters on the Foraging Behaviours of a Mammalian Predator We monitored the movements and behaviours of Arctic foxes using neighbouring home ranges and evaluated if conspecific interactions influenced where they foraged. The probability of encountering consp....

Fresh off the press! 📰
How do territorial predators behave when at risk of encountering neighbours?

Jeanne @jclermont.bsky.social tracked Arctic foxes 🦊 on Bylot Island to study the effect of conspecific encounter risk on foraging behavior.

with Marie-Pier Poulin & @dominiqueberteaux.bsky.social

A map of Castries in Saint Lucia. The map is in a circle, we can see roads, buildings, water bodies and green areas. The map is colorful.

A map of Castries in Saint Lucia. The map is in a circle, we can see roads, buildings, water bodies and green areas. The map is in black and white colors.

Introducing {maposm}, an R package that extracts, modifies and merges sets of layers from OpenStreetMap for cartographic purposes.

On github: https://github.com/riatelab/maposm

The package is not on CRAN, but it is on r-universe: https://riatelab.r-universe.dev/maposm

#RStats #rspatial #GISChat

Seasonal role of a specialist predator in rodent cycles: Ermine–lemming interactions in the High Arctic The exact mechanisms behind population cycles remain elusive. An ongoing debate centers on whether predation by small mustelids is necessary and sufficient to generate rodent cycles, as stipulated by...

New: The Specialist Predator Hypothesis is discussed here and David provide evidence that it is not well supported to explain lemming cycles and, de facto, the temporal dynamics of the Arctic tundra food web. However, ermines do have a major impact on it. Find out in the MS how! Its open access.

A Functional Response in Resource Selection Links Multiscale Responses of a Large Carnivore to Human Mortality Risk A quantitative framework that links individual-level responses to factors limiting fitness across scales has been elusive for animal ecology. With hierarchical resource selection, coarse-scale select...

A Functional Response in Resource Selection Links Multiscale Responses of a Large Carnivore to Human Mortality. 2025. Mounts Lions - onlinelibrary.wiley.com/doi/full/10....

Long-distance, synchronized and directional fall movements suggest migration in Arctic hares on Ellesmere Island (Canada) - Scientific Reports Scientific Reports - Long-distance, synchronized and directional fall movements suggest migration in Arctic hares on Ellesmere Island (Canada)

Arctic hares may be migratory in the high Arctic.

Uncertain what causes this possible migration but resource tracking seems plausible.

🧪🌍 www.nature.com/articles/s41...

Great ressources for anyone doing spatial data with with R 🚀 🌈

👉 rspatialdata.github.io

thx @paulamoraga.bsky.social ✨

🧪🌐

Impressive work!

Hi from Laval University! I'd love to be added if there is still space!

Hello Bluesky! I'm a behavioral ecologist wrapping up my PhD at Laval University. I use movement data and field surveys to explore how predation shapes population dynamics and species coexistence. Most of my work is on arctic fox, shorebirds, geese and mountain goats. Happy to join the conversation!

Would be happy to join!

I would like to be added!

Hey! I’d like to be added, currently working on predator-prey interactions in the arctic, previously on predator induced stress in mountain goats.

Hey, I’m a behavioral ecologist working on predator-prey interactions, stress physiology and movement in birds and mammals, would love to be added!