Ambroise Baker
ambroisebaker.bsky.social
Ambroise Baker
@ambroisebaker.bsky.social
Senior lecturer in ecology and botanist, interested in accelerating nature recovery.
https://plantsbiodiversityecosystems.wordpress.com/
Reposted by Ambroise Baker
20 years on from the first #GBRedList for vascular plants - what's changed?
285 taxa have become more threatened.
Critically Endangered up from 35 to 55 taxa, Endangered up from 90 to 117 taxa, Vulnerable up from 220 to 261 taxa 😱☠️

Action needed now! Well done @bsbibotany.bsky.social and partners
November 5, 2025 at 3:54 PM
😍 Hang on a minute... is this Japanese Anemone (Anemone × ⁠hybrida Paxton) growing on top of the wall?
🙋 Is it not a sterile hybrid?
🤔how did it make it up there over 2 meter up this wall?

🤯The magic of rare alien dispersal! 🤯

#UrbanPlants #WallPlants
@trevorthebotanist.bsky.social
October 22, 2025 at 7:47 AM
Reposted by Ambroise Baker
Our annual membership special offer opens today!
Join us this month & you'll enjoy 15 months of membership benefits for the price of 12.
Those benefits are so numerous & fabulous you'll have to head over here to see them all:
bsbipublicity.blogspot.com/2025/10/bsbi...
Then join us! bsbi.org/join-us
October 1, 2025 at 1:21 PM
Reposted by Ambroise Baker
Coming soon: 'Wild Roses of Great Britain and Ireland'.
This latest title, no.26 in the series of #BSBIHandbooks for tricky plant groups, has just gone to the printers!
Available for #BSBImembers to pre-order now at the discount price of £16 (vs RRP £25).
Sample pages here:
bsbi.org/bsbi-handboo...
September 26, 2025 at 2:38 PM
Reposted by Ambroise Baker
Back from the fantastic @bsbibotany.bsky.social Mentha workshop run by @ambroisebaker.bsky.social. I learnt a lot, mints can be so variable.

On the field meeting we found a number of different species. First photo is M. x gracilis, second is M. x smithiana and third is M. x verticillata.
September 8, 2025 at 10:34 AM
2025 Poaceae walk on the North Yorkshire Coast – as close to 50 species as ever!

While in 2023 and 2024, we came very close to observing 50 species of grasses during the walk, this year, we came even one inch closer to 50 mark! Here is a link to the species that have been observed this year and in…
2025 Poaceae walk on the North Yorkshire Coast – as close to 50 species as ever!
While in 2023 and 2024, we came very close to observing 50 species of grasses during the walk, this year, we came even one inch closer to 50 mark! Here is a link to the species that have been observed this year and in previous years. This list should also be useful to get ready for next year. As you can see, 50 taxa were observed, however, only if the…
plantsbiodiversityecosystems.wordpress.com
September 15, 2025 at 10:36 AM
Full CIEEM Membership Awarded

Very proud to report that my application for full membership of CIEEM, the Chartered Institute of Ecology and Environmental Management, has been accepted. Full membership is awarded to "senior professionals with a high degree of knowledge, experience, skills and…
Full CIEEM Membership Awarded
Very proud to report that my application for full membership of CIEEM, the Chartered Institute of Ecology and Environmental Management, has been accepted. Full membership is awarded to "senior professionals with a high degree of knowledge, experience, skills and professionalism" in the field of ecology and environmental management. During the application, I demonstrated proficiency in the following competencies:
plantsbiodiversityecosystems.wordpress.com
September 12, 2025 at 2:47 PM
FSC 2-day Courses Delivered: Botany Skills for Ecologist (2x) and Priority Open Lowland Habitats (1x).

Over the summer 2025, I was fortunate to meet and train about 30 professional ecologists during Field Studies Council courses. We focussed on plant and habitat identification as well as discussed…
FSC 2-day Courses Delivered: Botany Skills for Ecologist (2x) and Priority Open Lowland Habitats (1x).
Over the summer 2025, I was fortunate to meet and train about 30 professional ecologists during Field Studies Council courses. We focussed on plant and habitat identification as well as discussed surveys practicalities. This was an opportunity to apply some of my specialised skills in botany and vegetation science, in a variety of policy-relevant contexts - such as Biodiversity Net Gain, tree planting schemes, priority habitats, etc.
plantsbiodiversityecosystems.wordpress.com
September 12, 2025 at 2:19 PM
Reposted by Ambroise Baker
Back at base, and we looked at the hairs in the throat of the calyx tubes. This was fascinating.
Mentha pullegium (right) compared with M. x gracilis.
Both had hairs within the calyx tube, but M. pullegium had a clear cone-shaped, ring of hairs.
September 7, 2025 at 8:02 PM
Thanks Alex for coming to the workshop and for posting these pictures - There are other double and triple hybrids that have not been found in Britain and Ireland to date, so the mint quest continues....
A few hybrid Mentha from an excellent weekend in NE Yorks looking at mints with @ambroisebaker.bsky.social & @bsbibotany.bsky.social friends. Mentha x smithiana was new to me:) Names & notes on alt #wildflowerhour
September 8, 2025 at 8:55 AM
Thank you Astrid for coming along the workshop, this was a tremendous weekend. Fair to say that we have all learnt a lot! And still so much to learn!
A wonderful Mint workshop with @ambroisebaker.bsky.social in Yorkshire. Some really interesting mint species and hybrids were seen.
M. x smithiana (aquatica x spicata x arvense).
With M. x verticillata (arvense x aquatica) nearby and long-gone M. spicata possibly from a nearby garden.
September 8, 2025 at 8:51 AM
Above ground biomass sampling at Wild Saltholme

This drone footage shows PhD student Austine Otabor and supervisor Dr Ambroise Baker collecting a Above Ground Biomass sample from rewilding site Wild Saltholme, managed by RSPB Saltholme, Northeast of England. This field work is part of a research…
Above ground biomass sampling at Wild Saltholme
This drone footage shows PhD student Austine Otabor and supervisor Dr Ambroise Baker collecting a Above Ground Biomass sample from rewilding site Wild Saltholme, managed by RSPB Saltholme, Northeast of England. This field work is part of a research project monitoring abiotic, biotic and socio-ecological change during rewilding. Credits to our multi-talented and multi-tasking technician Miles Dimbleby for flying the drone.
plantsbiodiversityecosystems.wordpress.com
July 25, 2025 at 11:49 AM
Exploring the Science of Rewilding workshop – 10-11 July 2025, Hauxley Nature Reserve and West Chevington – BES Rewilding SIG

I attended this excellent workshop led by Rebecca Senior from Durham University, the local Wildlife Trust and the British Ecological Society's Rewilding SIG . Excellent…
Exploring the Science of Rewilding workshop – 10-11 July 2025, Hauxley Nature Reserve and West Chevington – BES Rewilding SIG
I attended this excellent workshop led by Rebecca Senior from Durham University, the local Wildlife Trust and the British Ecological Society's Rewilding SIG . Excellent discussions around monitoring change during rewilding and the various approaches practitioners and academics are working towards.
plantsbiodiversityecosystems.wordpress.com
July 18, 2025 at 8:32 AM
Thanks for a bril workshop - truly enjoyed listing from and speaking to a range of practitioners and academics
July 18, 2025 at 8:20 AM
Reposted by Ambroise Baker
July 10, 2025 at 9:47 AM
to pull or not to pull? one plant of Yellow Buttonweed Cotula coronopifolia last week in @rspb.bsky.social's Wild Saltholme, in the Tees Valley.
Dilemma for #rewilding and #invasives management
@bes-rewildinggroup.bsky.social
typical habitat on CFGM - Coastal floodplain and grazing marsh
July 18, 2025 at 8:14 AM
Reposted by Ambroise Baker
Gutted that you missed our recent #WildFlowerID webinars?
Mulleins (with @anaturalistabroad.bsky.social)
Mints (with @ambroisebaker.bsky.social)
Broomrapes (with @christhorogood.bsky.social)
No problem, we recorded them & the videos are on our YouTube channel: www.youtube.com/playlist?lis...
June 24, 2025 at 1:51 PM
Article in CIEEM’s In Practice: Brownfields in the Tees Valley are golden assets for nature recovery

Baker, A. (2025). Brownfield in the Tees Valley are golden assets for nature recovery. In practice : bulletin of the Chartered Institute of Ecology and Environmental Management. Issue 128, pp…
Article in CIEEM’s In Practice: Brownfields in the Tees Valley are golden assets for nature recovery
Baker, A. (2025). Brownfield in the Tees Valley are golden assets for nature recovery. In practice : bulletin of the Chartered Institute of Ecology and Environmental Management. Issue 128, pp 30-33. Read the full article pdf here. Abstract: This article highlights the ecological value of open mosaic habitat on previously developed land (OMH), a type of brownfield, and the legislation in place to protect it for the biodiversity it supports.
plantsbiodiversityecosystems.wordpress.com
June 17, 2025 at 9:40 AM
Still working on list but pictures of the day here photos.app.goo.gl/HeEp452m1Fn3...
And now thinking of 2026 Poaceae Walk for @bsbibotany.bsky.social
June 17, 2025 at 6:52 AM
Reposted by Ambroise Baker
Fantastic day looking at grasses, @bsbibotany.bsky.social Poaceae Walk on the coastal slopes btw Marske and Saltburn, vc 62. Now sorting specimens and lists... Did we get to 50 sp.?
Thanks all for a great day out
June 15, 2025 at 6:37 AM
Fantastic day looking at grasses, @bsbibotany.bsky.social Poaceae Walk on the coastal slopes btw Marske and Saltburn, vc 62. Now sorting specimens and lists... Did we get to 50 sp.?
Thanks all for a great day out
June 15, 2025 at 6:37 AM
"Our results also highlight that connectivity effects must be integrated in landscape-scale, evidence-led decision-making, designed to reduce impacts of stressors on water quality and biodiversity"
onlinelibrary.wiley.com/doi/10.1111/...
#freshwater #biodiversity #research #hydroscape #nerc
Landscape‐Scale Responses of Freshwater Biodiversity to Connectivity and Stressors
Aim There is compelling evidence that drivers and patterns of biodiversity and ecosystem functioning vary across multiple spatial scales, from global to regional, landscape and patch. However, macro...
onlinelibrary.wiley.com
June 12, 2025 at 9:55 AM
The Niche @britishecologicalsociety.org landed on door mat today, in for a treat a usual
June 11, 2025 at 6:46 PM
@jimhorsfall.bsky.social - you've validated a iRecord with an ID that should be adjusted
irecord.org.uk/record-detai...
as it is likely to be Mentha x verticilliata (see comment within)- beautiful picture btw showing the characteristics of a hybrid mint involving M. arvensis. An interesting find.
Record of Peppermint (Mentha aquatica x spicata = M. x piperita)
irecord.org.uk
June 11, 2025 at 8:08 AM