Led by Forestry England's Westonbirt, The National Arboretum, the Global Conservation Consortium for Whitebeams, Rowans, and Service Trees aims to strengthen and coordinate conservation action for Sorbus species across their global range. Read about the conservation gap analysis: 🔗 buff.ly/Q9vc8Jp

Two new species of Sorbus have been described since 2016: Sorbus fayana and Sorbus wyensis. Published today, both species are assessed as Critically Endangered. 🌳 Read about the @globaltreesg.bsky.social update highlights 🔗 buff.ly/rjF3Zku

🚨 Today’s IUCN Red List update includes reassessments for the UK’s most threatened trees. Known as whitebeams, rowans, and service trees, almost all UK Sorbus species are assessed as threatened with #extinction. 🌳 🔗https://buff.ly/rjF3Zku

📣 A new version of GlobalTreeSearch, a list of the world's accepted tree species, has been published! 🌳 🌍️ Explore the list here: buff.ly/1c0OoZH

How do we assess #extinction risk and how should those assessments be used? This new article reflects on the history, design and future of the IUCN Red List, addressing common misconceptions and outlining opportunities for continued improvement. 🔗 buff.ly/A8pISkP

One of the biggest challenges in plant conservation is the lack of accessible, standardised data for decision-making. A new data protocol for timber trees aims to strengthen data collection to support both the IUCN Red List and CITES Non-Detriment Findings. Read more 🔗 buff.ly/Zig1mIN

🌳 Did you know the GlobalTree Portal includes the Conservation Action Tracker which provides information on conservation actions for tree species. The latest update to the Portal includes an aggregation of the Tracker at a country level. #treeconservation Contribute to the Tracker: buff.ly/120pDIJ

🌳 The GlobalTree Portal has been updated! This new update includes a visual summary of threats affecting each species and aggregation of threats at a country level. 🌍️ #treeconservation Read more about the update: buff.ly/gHS13bK Visit the GlobalTree Portal: buff.ly/i6LwVLT

The first EDGE analysis of all vascular plants has been published. Led by @rbgkew.bsky.social and @zslofficial.bsky.social with input from the Global Tree Assessment, it finds the top-ranked EDGE angiosperm is Critically Endangered tree Hondurodendron urceolatum. Read the paper:

High risk of extinction across the flowering plant tree of life

Global biodiversity policies recognize the necessity to preserve evolutionary lineages, as their diversity underpins current and future benefits to people and the future of life on Earth. Plants are…

buff.ly

❗The Global Tree Assessment team at BGCI, the @mortonarboretum.bsky.social and New Mexico BioPark Society are hosting a 3-day online IUCN Red List training workshop from 13th-15th April (9am-5.30pm, CST). Deadline this Friday. To apply please fill out the application form: buff.ly/bB8juDv

📢Fondation Franklinia have opened a call for project proposals for threatened trees of the Mediterranean basin. 🌍 Deadline for submission is midnight CET March 25th, 2026. Click the link for more information: 🔗https://fondationfranklinia.org/en/call-for-proposals-open/ #conservationfunding

The Global Tree Specialist Group is celebrating #ReverseTheRedDay with @reversethered.bsky.social, through our mission to conserve tree species globally, by sharing knowledge and catalysing action to halt declines, restore populations and prevent extinctions. #SpeciesConservation #Biodiversity

Thank you to all our Global Tree Specialist Group members and everyone who has contributed to the Global Tree Assessment this year! ✨ Wishing you a very Happy Holidays and a great New Year! ✨

✨ Global Tree Assessment Highlights 2025✨ 🌲 The GTSG met to set the strategy for the next 5 years. The new website and logo were also launched! buff.ly/EgNGFRP 🌳 New research on Mesoamerica trees was published in @plantspplplanet: buff.ly/7poExsr (2/2)

✨ Global Tree Assessment Highlights 2025!✨ 🌳 The GTA team delivered two @IUCNRedList training courses to @IUCNssc and @BGCI network members, and staff @NYBG. 🌴 Assessments for trees continued with a workshop @WestonbirtArb reassessing Great British Sorbus species. (1/2)

📢 The Global Tree Assessment team is seeking a Conservation Assistant Officer to support reassessments for tree species. Deadline 30th November! 🌳🌍 #conservationjobs Apply at the link below 👇

📣 The latest #IUCN Red List update also features widely used #tropical tree species including Agarwood, Snake fruit (Salak) and Breadfruit, as well as several timber trees. #IUCNCongress #conservation Learn more at the link below 👇 buff.ly/3TVm3nT

🌴🦜 Pseudophoenix ekmanii, a palm species endemic to Dominican Republic, has been newly assessed as Critically Endangered. It provides nesting habitat for the Hispaniolan Parrot but is frequently destroyed during the illegal collection of chicks and eggs for the pet trade. #conservation

🌳🦜 Ocotea monteverdensis is a large canopy tree endemic to Costa Rica. It provides food for #threatened birds like the Resplendent Quetzal and Three-wattled Bellbird, which act as seed dispersers. Assessed as Critically Endangered it is threatened by forest loss and logging.

📢 Today’s #IUCN Red List update highlights work by @birdlifeglobal.bsky.social, revealing tropical forest loss as a growing threat to birds. Bird and tree species are often ecologically intertwined. Trees offer food and nesting sites, while birds aid seed dispersal and regeneration. buff.ly/3TVm3nT

The Birds and the Trees: Second IUCN Update of 2025 Published | Botanic Gardens Conservation International

Global Tree Assessments highlights from the latest IUCN Red List update.

buff.ly

🌱 BGCI is officially launching today the Illegal Plant Trade Coalition, to address a hidden crisis threatening biodiversity & livelihoods worldwide. Together we’ll protect species, support communities & build ethical markets. 🌍 Join 👉 tr.ee/712mMD #ThinkTwiceTradeRight

Last week members of the Global Tree Assessment team were in New York delivering IUCN Red List training to staff and students @nybg.bsky.social 🌳🌿 Thanks to all who joined! #plantconservation #botanicgardens

📣 New research published by BGCI and Global Tree Assessment collaborators in @plantspeopleplanet.bsky.social reveals that nearly half of tree species found in Mesoamerica are threatened by #extinction 🌎🌳 Read the full article at the link below! 🔗 buff.ly/z9d0Yrh

Applications are now open for the 2026 EDGE Fellowship, with both angiosperm and gymnosperm tree species included in the list! 🌲🌳 Submit your expression of interest by 21st July. More information at the link below 👇

EDGE Fellowship 2026 | Apply to Lead Your Conservation Project

Apply for the EDGE Fellowship 2026. Receive dedicated support to lead a conservation project on an EDGE species. Deadline: 21 July 2025.

buff.ly

#ICYMI the IUCN Red List was updated last week adding new assessments for #tree species! 🌳 Read about the Global Tree Assessment highlights from the latest update at the link below 👇

First IUCN Red List Update of 2025 | Botanic Gardens Conservation International

Global Tree Assessment highlights from the latest IUCN Red List update.

buff.ly

The IUCN Red List has been updated today adding over 800 new assessments for #tree species. Included in the update are species of Boswellia (frankincense trees) on Socotra Island, Yemen, with all species threatened with #extinction due to grazing and extreme weather. buff.ly/yeZa8bV

🌳Webcast tomorrow (26-Mar at 13:30–15:00 (UTC+1): Launch of the Second Report on the State of the World's Forest Genetic Resources Details 👉 www.fao.org/forestry/all...

Launch of the Second Report on the State of the World's Forest Genetic Resources

Join FAO for the launch of the Second Report on the State of the World’s Forest Genetic Resources.

fao.org

Over the last 2 days, members of @globaltreesg.bsky.social met at Morton Arboretum to reflect on the group's progress so far within the IUCN Species Conservation Cycle, and to set targets and actions for the next quadrennium (2026-2029). Thanks to all who have contributed!🌳 #treeconservation

📢New Franklinia call for Caribbean and Latin America is now open. This is a great opportunity for funding for in situ conservation of globally threatened #trees! 🌳 Deadline for proposals is midnight CET on April 6th, 2025. More information can be found here: fondationfranklinia.org/en/call-for-...

📰This year's first issue of the Global Tree Specialist Group newsletter is now available! 2025 is the last year of the current IUCN Quadrennium, find out how you can contribute to the new GTSG strategy for 2026-2029 👇 www.bgci.org/resources/bg...