23 Oct 2024
Did you know mango trees (Mangifera indica) in Medellín city can reveal their growth history through their tree rings?
#TreeRingTuesday #Dendrochronology #UrbanForests
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18 Apr 2024
We combined #dendrochronology #remotesensing, #drones, soil-root #microbiology to unravel the mysteries behind #treeMortality
#TreeRingTuesday
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16 Apr 2024
Happy #TreeRingTuesday!! Remember when you first pulled a tree core from the increment borer? 😍 Here’s a reminder from a newly initiated recruit who was recently bit by the dendro bug! #TreeRings #Dendro #Dendrochronology
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9 Apr 2024
Happy #TreeRingTuesday everyone! Share ‘em if you’ve got ‘em 🌲💍😍 #dendro #dendrochronology #TreeRings
ALT Cylindrical tree core being pulled out of an orange handled increment borer.
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26 Mar 2024
Happy #TreeRingTuesday!! 🌲💍
Let’s see some beautiful #TreeRings and #dendro work to help us through the week. Tag us, RT and help make Tree-Ring Tuesday a weekly motivator for all of us in #dendrochronology!
ALT Large round vessels of oak under a microscope.
ALT Polished Juniper cross section with alternate bands of light and dark tree-rings.
ALT Gloved hand holding a reddish cylinder core of Juniper.
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30 Jan 2024
Thinking about these two bald cypress trees that lived around 70,000 years apart from each other. Funky temporalities, arboreal existentialism, and #paleowoodanatomy make for a fine #TreeRingTuesday.
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7 Nov 2023
This week on the ITRL CaptuRing saga: PTGui, or the next Salvador Dali? 😂 #TreeRingTuesday
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19 Sep 2023
This wee lil eastern larch from a peatland along Keweenaw Bay, MI takes us back to at least the 1770s (not including the inevitable missing rings hidden in there…)! 🥲 Happy #TreeRingTuesday, y’all 🌲💍🫶
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20 Jun 2023
Can you tell what may have caused the scar of unknown origin on this #TreeRingTuesday? Our researchers have an educated guess.
Some hints:
- Five trees in the same area as this one have scars in 1816 and 1893
- No other trees in this area have a scar in 1803
#SciComm #TreeRings
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13 Jun 2023
This #TreeRingTuesday is on one of the most important tools in a tree ring scientist's toolkit: cross-dating. Comparing multiple samples is often the only way to confirm the events of the past, as many samples have anomalies or scars that are not quite clear.
#SciComm
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6 Jun 2023
This #TreeRingTuesday we're highlighting another aspect that makes analysis tricky: when are subtle hurt marks associated with fire vs. other damage (e.g. avalanches, wildlife rubbing)? Cross-referencing with samples from other nearby trees is essential.
#SciComm #TreeRings
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30 May 2023
Sharing some of my Pinus contorta images from the Cypress Hills for #treeringtuesday 🌲💍
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30 May 2023
Happy #TreeRingTuesday from some upper midwest Larix laricina! The number of years in these small and stunted #peatland trees never fails to amaze me 🤩🌲💍 #bogslog
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30 May 2023
This #TreeRingTuesday we're highlighting pith dates - the "birth dates" of trees. For species like jack pine that germinate from fire, pith dates can help us confirm #fire dates when compared with the dates of fire scars of other trees from the same area.
#dendroecology #SciComm
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23 May 2023
This #TreeRingTuesday features a sample from what seems to be a very fire-prone area. Not only did this tree survive 4 fires in its lifetime, but it also germinated as a result of fire. This sample demonstrates how #wildfire is a natural part of a tree's life in boreal Canada.
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16 May 2023
Apart from reading and dating rings and scars, tree cookie samples can give us more info about the life of a tree. The "swiss cheese" holes throughout this sample are evidence of an ant colony living in the tree.
#TreeRingTuesday #SciComm
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2 May 2023
Our third #TreeRingTuesday shows analysis is not always straightforward.
"Hurt marks" come from things like rock slides, avalanches, and animal activity. They need to be distinguished from fire scars to accurately uncover the history of the tree.
#SciComm #dendrochronology
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25 Apr 2023
For our second #TreeRingTuesday, here is a sample a bit further south. This tree was a real survivor, experiencing three fires in its lifetime. Multiple fire scars create an interesting shape, including an "ear" shape from the 1944 fire.
#wildfire #dendrochronology
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18 Apr 2023
Tree rings are like the history books of the forest. Our researcher @parisien_marc's team sampled trees along a transect in NWT last summer and we're now learning the stories of this landscape. Every #TreeRingTuesday I will share a new sample and its unique history.
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