Thanks Tim!

The latest work by @shivakhanal.bsky.social on carbon-dense forests in the Himalayas. Fascinating work!

www.nature.com/articles/s41...

Thank you!

Empowering Commonsense Wildfire Prevention and Response By the authority vested in me as President by the Constitution and the laws of the United States of America, it is hereby ordered:Section 1. Purpose. The

Welp, here it is. For better or worse.

www.whitehouse.gov/presidential...

Don’t you think those fire regimes would be better described as “opportunistic crown fire”, “occasional crown fire”, “mostly understory”, etc. instead of just “mixed severity”? Feels like we can do better.

This. Southern CO looking good for the summer www.nifc.gov/nicc/predict...

[2] All ages of Doug-fir foliage are more heat sensitive in spring, but fully mature ponderosa pine foliage is not. Prescribed fire aimed at controlling Doug-fir and maintaining ponderosa pine may have better outcomes from spring burns after bud-break than autumn, given similar burning conditions.

[1] Doug-fir foliage is generally more heat sensitive than ponderosa pine foliage. New, expanding foliage is more heat sensitive than 1 yo foliage. Once foliage is fully expanded, it no longer shows elevated heat sensitivity.

A cellular necrosis process model for estimating conifer crown scorch Fire-caused tree mortality has major impacts on forest ecosystems. One primary cause of post-fire tree mortality in non-resprouting species is crown s…

Oh hey, I published a paper! Get it free the next 45 days

The study used lab methods to show how post-fire crown scorch can change based on species, season, and age of foliage- work that can be used to improve tree mortality outcomes following prescribed fire.

www.sciencedirect.com/science/arti...

Texas braces for an imminent screwworm infestation, a threat to the state’s cattle industry U.S. Sens. John Cornyn and Ted Cruz hope to fund an operation to kill the parasitic fly before too much damage is done.

Screwworm control is one of those really famous stories you learn about in undergrad biology. It was one of the most successful biological control initiatives ever undertaken in human history. Hopefully we can do it again.

www.texastribune.org/2025/05/21/t...

Why do fire scars form more on the leeward or uphill sides of trees? For #firescarfriday here's a little time lapse video showing the increased residence time of flame, and thus increased heating and potential cambial injury, in the eddy of air in the lee of this long leaf pine. Florida, USA, 2025.

📚🔥🛰️ I am proud to announce that my two companion articles using #Landsat data and #RemoteSensing methods to quantify fractional herbaceous cover in #wildfire-prone Mediterranean-type ecosystems are now published in the International Journal of Remote Sensing.

This isn't new but wow. Incredible paper. I mean look at this figure

sites.ualberta.ca/~flanniga/pu...
#wildfire #forestecol

Nice! There's even an R package for that 🤓

No I hadn't! Thanks!

The idea is to get a sense for how north- and south-facing slopes differ in terms of vegetation structure, but I expect the differences to be driven by radiation and evaporation (and therefore aridity index), so either would be great

I'm looking for an aridity map or model that accounts for south- versus north-facing slope aspect. Or some source regarding how slope aspect affects vegetation structure at the landscape scale. Suggestions?

#gischat #wildfire #forestecol #ecology #microclimate #macroecology 🌐 🌎

Took a while, but I finally did it

California Wildfire Analysis from Scripps Oceanography Climate Experts What is causing these high winds? Sasha Gershunov (Climate Science Researcher): High pressure in the Great Basin and low pressure over northern Baja California, plus a very strong jet stream roaring s...

Great interview about the LA fires with links to some neat stats and maps: scripps.ucsd.edu/news/califor...

Map showing the number of times a location has burned in SoCal and which kind of fire it was: one burning under Santa Ana winds, or one that was a summer, fuel-driven fire without Santa Ana winds. Malibu area had burned at least 8 times from 1900-2017, and has burned twice now since. Image from Kolden and Abatzoglou (2018): https://www.mdpi.com/2571-6255/1/2/19

Here's the reality about the #LAFires this week: this isn't the first time ANY of these places have burned. Not even close. In 2018, we mapped CA fire history to look at fire frequency across SoCal. Santa Monica Mtns area burns more than anywhere else -- up to once per decade in a given spot. 🧵

Canadian forests are more conducive to high-severity fires in recent decades Canada has experienced more-intense and longer fire seasons with more-frequent uncontrollable wildfires over the past decades. However, the effect of these changes remains unknown. This study identifi...

Congratulations to Weiwei Wang (early career researcher) on her paper in Science out today - 'Canadian forests are more conducive to high-severity fires in recent decades' largely due to increases in fuel aridity.
www.science.org/doi/10.1126/...

Recovery Following Recurrent Fires Across Mediterranean Ecosystems Mediterranean ecosystems worldwide are frequently affected by fires. Focusing on areas that burned two times over the past 22 years, we study the post-fire dynamics, applying a statistical model to t...

Recovery Following Recurrent Fires Across
Mediterranean Ecosystems

onlinelibrary.wiley.com/doi/pdf/10.1...

Open MS/PhD & postdoctoral researcher positions:

Map from ClimateToolbox.org depicting season to date precipitation anomaly ranks across California. Northern California is much wetter than the long-term average (locally near record-wet), and Southern California is much drier than average (locally record-dry).

As the new year approaches, the already remarkable season-to-date "precipitation dipole" in California has further intensified. Much of SoCal has still not received meaningful rain this season, while NorCal continues to get soaked on a recurring basis. #CAwx #CAwater #CAfire

Coast live oaks showing off their pretty scars ... #firescarfriday 🌎🔥🍁🌳

Just learned that Acer negundo (boxelder) is called Manitoba maple in Canada and I think that’s wholesome as heck

What’s your favorite method of tiling rasters in R? I’m stuck with my old code and it’s unsatisfying.

#rspatial

Drought before fire increases tree mortality after fire Fire and drought are expected to increase in frequency and severity in temperate forests due to climate change. To evaluate whether drought increases the likelihood of post-fire tree mortality, we us...

New paper by Alina Cansler and colleagues:
"Drought before fire increases tree mortality after fire".

I ❤️ results-oriented titles!

#Wildfire 🔥🌏🧪

www.firelab.org/project/fire...

This week's seminar at the Missoula Fire Lab will be:

"The Fire Weather Alert System: A new fire weather warning system for on-the-ground firefighters"

Link in comments.
#fire #firescience #gis