We need epigenetic age estimates for groundtruthing!
September 17, 2026 at 9:20 PM
We need epigenetic age estimates for groundtruthing!
this skeet forced me to look up the science and i am gutted to learn that opossums might not actually eat tickets pubmed.ncbi.nlm.nih.gov/34298355/
Are Virginia opossums really ecological traps for ticks? Groundtruthing laboratory observations - PubMed
Virginia opossums (Didelphis virginiana) are a common synanthrope in North America, and serve as host to many species of ectoparasites. Research on captive Virginia opossums estimated that opossums ea...
pubmed.ncbi.nlm.nih.gov
August 4, 2026 at 6:57 PM
this skeet forced me to look up the science and i am gutted to learn that opossums might not actually eat tickets pubmed.ncbi.nlm.nih.gov/34298355/
Learn why ground-truthing is important in this presentation by Rob Savoye at #SOTMUS2026:
🔗 youtu.be/LYNturLYIb0?...
🦩
#OpenStreetMap #groundtruthing #opendata #geo #geospatial
🔗 youtu.be/LYNturLYIb0?...
🦩
#OpenStreetMap #groundtruthing #opendata #geo #geospatial
Why Ground-Truthing is Important ~ Rob Savoye
This is a short talk about why ground-truthing is important. Incorrect or lacking tags often leads to navigation mistakes which would be better to not experience. In addition, in many small rural…
youtu.be
July 29, 2026 at 9:55 PM
Learn why ground-truthing is important in this presentation by Rob Savoye at #SOTMUS2026:
🔗 youtu.be/LYNturLYIb0?...
🦩
#OpenStreetMap #groundtruthing #opendata #geo #geospatial
🔗 youtu.be/LYNturLYIb0?...
🦩
#OpenStreetMap #groundtruthing #opendata #geo #geospatial
Learn why ground-truthing is important in this presentation by Rob Savoye at #SOTMUS2026:
🔗 youtu.be/LYNturLYIb0?...
🦩
#OpenStreetMap #groundtruthing #opendata #geo #geospatial
🔗 youtu.be/LYNturLYIb0?...
🦩
#OpenStreetMap #groundtruthing #opendata #geo #geospatial
Why Ground-Truthing is Important ~ Rob Savoye
This is a short talk about why ground-truthing is important. Incorrect or lacking tags often leads to navigation mistakes which would be better to not experience. In addition, in many small rural…
youtu.be
July 29, 2026 at 8:10 PM
Learn why ground-truthing is important in this presentation by Rob Savoye at #SOTMUS2026:
🔗 youtu.be/LYNturLYIb0?...
🦩
#OpenStreetMap #groundtruthing #opendata #geo #geospatial
🔗 youtu.be/LYNturLYIb0?...
🦩
#OpenStreetMap #groundtruthing #opendata #geo #geospatial
No they won’t. That is a myth based on a flawed study. Doesn’t mean possums are bad, tho.
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
Are Virginia opossums really ecological traps for ticks? Groundtruthing laboratory observations
Virginia opossums (Didelphis virginiana) are a common synanthrope in North America, and serve as host to many species of ectoparasites. Research on ca…
www.sciencedirect.com
June 4, 2026 at 6:19 PM
No they won’t. That is a myth based on a flawed study. Doesn’t mean possums are bad, tho.
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
Let me know if you can't see the whole paper. pubmed.ncbi.nlm.nih.gov/34298355/
Are Virginia opossums really ecological traps for ticks? Groundtruthing laboratory observations - PubMed
Virginia opossums (Didelphis virginiana) are a common synanthrope in North America, and serve as host to many species of ectoparasites. Research on captive Virginia opossums estimated that opossums ea...
pubmed.ncbi.nlm.nih.gov
April 20, 2026 at 10:22 PM
Let me know if you can't see the whole paper. pubmed.ncbi.nlm.nih.gov/34298355/
how have I seen this post so many times without anyone yet pointing out that the thing about eating ticks is verifiably untrue and based on bad science
pubmed.ncbi.nlm.nih.gov/34298355/
(be nice to them opossums anyways)
pubmed.ncbi.nlm.nih.gov/34298355/
(be nice to them opossums anyways)
January 23, 2026 at 5:17 PM
how have I seen this post so many times without anyone yet pointing out that the thing about eating ticks is verifiably untrue and based on bad science
pubmed.ncbi.nlm.nih.gov/34298355/
(be nice to them opossums anyways)
pubmed.ncbi.nlm.nih.gov/34298355/
(be nice to them opossums anyways)
Psst...Opossums don't eat ticks (at least, not 5000 ticks per year).
pubmed.ncbi.nlm.nih.gov/34298355/
pubmed.ncbi.nlm.nih.gov/34298355/
January 23, 2026 at 12:10 AM
Psst...Opossums don't eat ticks (at least, not 5000 ticks per year).
pubmed.ncbi.nlm.nih.gov/34298355/
pubmed.ncbi.nlm.nih.gov/34298355/
www.researchgate.net/publication/...
Hennessy and Hild did work to validate the "opossums eat thousands of ticks" claim - both by performing some tests of their own, and digging through existing research into the matter.
Spoiler alert: They don't really eat ticks, let alone in the thousands.
Hennessy and Hild did work to validate the "opossums eat thousands of ticks" claim - both by performing some tests of their own, and digging through existing research into the matter.
Spoiler alert: They don't really eat ticks, let alone in the thousands.
(PDF) Are Virginia opossums really ecological traps for ticks? Groundtruthing laboratory observations
PDF | Virginia opossums (Didelphis virginiana) are a common synanthrope in North America, and serve as host to many species of ectoparasites. Research... | Find, read and cite all the research you nee...
www.researchgate.net
January 21, 2026 at 11:08 PM
www.researchgate.net/publication/...
Hennessy and Hild did work to validate the "opossums eat thousands of ticks" claim - both by performing some tests of their own, and digging through existing research into the matter.
Spoiler alert: They don't really eat ticks, let alone in the thousands.
Hennessy and Hild did work to validate the "opossums eat thousands of ticks" claim - both by performing some tests of their own, and digging through existing research into the matter.
Spoiler alert: They don't really eat ticks, let alone in the thousands.
www.researchgate.net/publication/...
The study that Cecilia Hennessy and Kaitlyn Hild performed, as the journal you linked discusses around.
The study that Cecilia Hennessy and Kaitlyn Hild performed, as the journal you linked discusses around.
(PDF) Are Virginia opossums really ecological traps for ticks? Groundtruthing laboratory observations
PDF | Virginia opossums (Didelphis virginiana) are a common synanthrope in North America, and serve as host to many species of ectoparasites. Research... | Find, read and cite all the research you nee...
www.researchgate.net
January 21, 2026 at 10:57 PM
www.researchgate.net/publication/...
The study that Cecilia Hennessy and Kaitlyn Hild performed, as the journal you linked discusses around.
The study that Cecilia Hennessy and Kaitlyn Hild performed, as the journal you linked discusses around.
Delighted to have a poem ‘Groundtruthing’ with The Phare - you can read it here www.thephare.com/winter25flip... and listen to it here www.thephare.com/letslisten
Big thanks to @robgmacfarlane.bsky.social on X in 2017 for the epigraph
Big thanks to @robgmacfarlane.bsky.social on X in 2017 for the epigraph
Let's Listen | Phare
Our published writers and poets read us their work.
www.thephare.com
January 3, 2026 at 2:44 PM
Delighted to have a poem ‘Groundtruthing’ with The Phare - you can read it here www.thephare.com/winter25flip... and listen to it here www.thephare.com/letslisten
Big thanks to @robgmacfarlane.bsky.social on X in 2017 for the epigraph
Big thanks to @robgmacfarlane.bsky.social on X in 2017 for the epigraph
"getting into the weeds of ERW MRV is beyond the scope here" is precisely what must be done: it's the calibration to *their* model, their own groundtruthing. It's the difference between modeling the average world and modeling their application with specific, real-world materials.
October 13, 2025 at 6:46 AM
"getting into the weeds of ERW MRV is beyond the scope here" is precisely what must be done: it's the calibration to *their* model, their own groundtruthing. It's the difference between modeling the average world and modeling their application with specific, real-world materials.
The next blog in our series looking at the update of the Ancient Woodland Inventory is now live on our website: www.neyedc.org.uk/updates-insi.... This time, we're getting an insight into the survey techniques used on the ground to help verify potential 'new' ancient woodland 🌳
Updating the Ancient Woodland Inventory: Groundtruthing — neyedc
Carrying on from our previous blogs, our Ecological Surveyor, Claire Bending, talks about the next steps in the process of updating the Ancient Woodland Inventory (AWI) - on-the-ground surveys.
www.neyedc.org.uk
October 10, 2025 at 3:02 PM
The next blog in our series looking at the update of the Ancient Woodland Inventory is now live on our website: www.neyedc.org.uk/updates-insi.... This time, we're getting an insight into the survey techniques used on the ground to help verify potential 'new' ancient woodland 🌳
The left would rather skirmish over whether we’ve done enough groundtruthing on anything that resembles a solution, with the only acceptable outcome of said groundtruthing being to impose a hukou system.
August 26, 2025 at 6:48 PM
The left would rather skirmish over whether we’ve done enough groundtruthing on anything that resembles a solution, with the only acceptable outcome of said groundtruthing being to impose a hukou system.
Another beautiful day of groundtruthing for our #EnMAP.#SNSA project ... without sweating from start to finish under a hot sun.
July 29, 2025 at 2:50 PM
Another beautiful day of groundtruthing for our #EnMAP.#SNSA project ... without sweating from start to finish under a hot sun.
groundtruthing required - mount an expedition
June 30, 2025 at 5:18 AM
groundtruthing required - mount an expedition
Sources:
extension.illinois.edu/blogs/good-growing/2024-06-14-reassessing-opossum-tick-relationship-it-good-idea-attract-opossums
https://pubmed.ncbi.nlm.nih.gov/34298355/
extension.illinois.edu/blogs/good-growing/2024-06-14-reassessing-opossum-tick-relationship-it-good-idea-attract-opossums
https://pubmed.ncbi.nlm.nih.gov/34298355/
Are Virginia opossums really ecological traps for ticks? Groundtruthing laboratory observations - PubMed
Virginia opossums (Didelphis virginiana) are a common synanthrope in North America, and serve as host to many species of ectoparasites. Research on captive Virginia opossums estimated that opossums eat, on average, 5500 larval ticks (Acari: Ixodidae) per week. To investigate this apparent preference …
pubmed.ncbi.nlm.nih.gov
June 27, 2025 at 11:07 PM
Sources:
extension.illinois.edu/blogs/good-growing/2024-06-14-reassessing-opossum-tick-relationship-it-good-idea-attract-opossums
https://pubmed.ncbi.nlm.nih.gov/34298355/
extension.illinois.edu/blogs/good-growing/2024-06-14-reassessing-opossum-tick-relationship-it-good-idea-attract-opossums
https://pubmed.ncbi.nlm.nih.gov/34298355/
Short answer yes. I think Paul Carter might be good on this? Maybe Groundtruthing I’d need to think…
June 25, 2025 at 8:12 AM
Short answer yes. I think Paul Carter might be good on this? Maybe Groundtruthing I’d need to think…
Also not helping was SFUSD management, who declined to meet with its unions more than twice a month and failed to do any groundtruthing until late November 2020.
June 6, 2025 at 1:32 AM
Also not helping was SFUSD management, who declined to meet with its unions more than twice a month and failed to do any groundtruthing until late November 2020.
That's a great question. The study that showed that was flawed. We will eat ticks, just like other insects, but we aren't crazy, tick-eating machines.
www.sciencedirect.com/science/arti....
www.sciencedirect.com/science/arti....
Are Virginia opossums really ecological traps for ticks? Groundtruthing laboratory observations
Virginia opossums (Didelphis virginiana) are a common synanthrope in North America, and serve as host to many species of ectoparasites. Research on ca…
www.sciencedirect.com
May 26, 2025 at 12:37 AM
That's a great question. The study that showed that was flawed. We will eat ticks, just like other insects, but we aren't crazy, tick-eating machines.
www.sciencedirect.com/science/arti....
www.sciencedirect.com/science/arti....
Bad info in, bad info out. This is well worth a read on dodgy data, AI and poor to no groundtruthing driving land management policy. @tonyjuniper.bsky.social
So this week in the world of farm/environment/land management/ mapping has been “interesting”
And by “interesting” I mean “verging on the utterly bonkers”
Why? Well this week started with Natural England launching a new map
naturalengland.blog.gov.uk/2025/05/12/a...
And by “interesting” I mean “verging on the utterly bonkers”
Why? Well this week started with Natural England launching a new map
naturalengland.blog.gov.uk/2025/05/12/a...
A new peat map for England
By Dr Ruth Waters, Director for Evidence, Natural England, and David Jones, Senior Responsible Officer for the Natural Capital and Ecosystem Assessment, Defra England’s peat deposits are one of our mo...
naturalengland.blog.gov.uk
May 18, 2025 at 9:00 PM
Bad info in, bad info out. This is well worth a read on dodgy data, AI and poor to no groundtruthing driving land management policy. @tonyjuniper.bsky.social