Postfire landscapes of the 2025 Deer Creek fire, Colorado-Utah border, USA.

Though this is not a tree-ring fire scar, for #firescarfriday here is an interesting pic of landscape burn severity patterns from the 2025 Rabbit Creek Fire (DA-007) in the Yukon Territory.

Our new research highlights the extent that aspen stands may act as a firebreak, slowing or stopping fire. Applications for land management and implications for fire-driven conifer-to-aspen forest conversion. Thanks @grumpyunclesean.bsky.social for the summary below. doi.org/10.1002/eap....

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.

Hands off Gunnison Colorado!
#handsoff

Flaming fire scars at the base of a longleaf pine (Pinus palustris) in the Red Hills of Florida USA. 04/02/25. Interesting how intensely these can burn once they get going. #firescarfriday

Evidence of changing fire regimes. This fire-scarred ponderosa pine (Pinus ponderosa) survived past fire but was killed by the ultra-severe, 60,000-ha Las Conchas fire in 2011. Bandelier NM, USA. #firescarfriday #deadtrees

Here's a closer view of the raven calling. Definitely saying something, I wonder what.

Raven calling strangely from a dead piñon pine (Pinus edulis) killed by drought + heat + Ips confusus 22 years ago. Tsankawi, New Mexico, USA.

Here's a big fire scar on a big tree for #firescarfriday. Kid for scale. Giant sequoia (Sequoiadendron giganteum), California, USA.

Pic from the Upper Gunnison Basin Colorado, albedo is up and temp is down. -24F/-31 C

lots of great stuff here on Bluesky. I'd like to add this cactus.

beetle-killed Engelmann spruce and moonrise over the La Garitas. Inspiring caption about beauty persisting or something like that?