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Ryan Stephens

@ryanbstephens

Wildlife ecologist, trophic ecologist, museum lover, truffle admirer, biological illustrator, and assistant professor at ETSU.

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21.11.2024
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Latest posts by Ryan Stephens @ryanbstephens

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One hundred unanswered questions on the dispersal ecology of fungi Abstract. Fungi comprise millions of species that play numerous varied roles in Earth’s natural and managed ecosystems, engaging in a multitude of positive

New paper out today in the ISME | International Society for Microbial Ecology Journal and the first product from our ESIIL (Environmental Data Science Innovation and Impact Lab) working group on Fungal Dispersal. Check it out!

academic.oup.com/ismej/advanc...

19.02.2026 22:24 πŸ‘ 28 πŸ” 15 πŸ’¬ 0 πŸ“Œ 1

Over 20 years of scat analyses reveal how truffle-like fungi respond to climate change.

First paper of PHD student Emily McIntyre from @unimelb.edu.au
πŸ¦˜πŸ„β€πŸŸ«πŸŒ±

@ausmycsoc.bsky.social
@esaplantsoilecol.bsky.social

05.02.2026 03:56 πŸ‘ 17 πŸ” 7 πŸ’¬ 0 πŸ“Œ 1
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To disperse their spores, truffles rely on animals eating other animals It is a gruesome business

Truffles and carnivores made the news. Our Ecology Letters paper was picked up by the @economist.com last week: www.economist.com/science-and-...

29.01.2026 03:07 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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From prey to predator: how carnivores spread beneficial fungi Research shows that carnivores play an important role in ecosystem function by providing a largely overlooked mechanism for long-distance dispersal of beneficial mycorrhizal fungi.

Research shows that carnivores play an important role in ecosystem function by providing a largely overlooked mechanism for long-distance dispersal of beneficial mycorrhizal fungi.

twin-cities.umn.edu/news-events/...

19.12.2025 04:08 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Thanks for all your help in getting it to this stage!

17.12.2025 01:18 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Out in Ecology Letters! We assessed the effectiveness of #carnivores as secondary dispersers of mycorrhizal #fungi. Larger carnivores deposited fewer spores but moved them farther, creating a continuum between the quantity & quality of dispersal effectiveness. onlinelibrary.wiley.com/doi/10.1111/...

11.12.2025 20:32 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 1
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An interesting study from Japan observes how animal-dispersed truffle-like fungi are more prone to genetic isolation due to forest fragmentation. Not a surprising finding, but interesting to consider from a conservation standpoint!

link.springer.com/article/10.1...

04.12.2025 15:04 πŸ‘ 6 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0
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πŸ¦…πŸŒ±Secondary seed dispersal by migrant harriers in India

πŸ“· Β© Sankar Subramanian

vist.ly/4cfkr

#Diploendozoochory #Grasslands #OpenNaturalEcosystems #Raptor

31.10.2025 18:06 πŸ‘ 17 πŸ” 9 πŸ’¬ 0 πŸ“Œ 1

Excited to share our most recent work in collaboration with @liedcarneiro.bsky.social . We link network properties with estimates of pollination success. Check it out!

29.10.2025 17:18 πŸ‘ 4 πŸ” 4 πŸ’¬ 0 πŸ“Œ 0
Water cascades down a shallow creek over large slate rocks. Yellow and orange leaves mix with some still green in front of a pale blue sky

Water cascades down a shallow creek over large slate rocks. Yellow and orange leaves mix with some still green in front of a pale blue sky

Two men leaning on hiking sticks are deep in conversation standing at the base of a large waterfall. Leaves in the foreground are starting to transition from green to the yellows and oranges of fall.

Two men leaning on hiking sticks are deep in conversation standing at the base of a large waterfall. Leaves in the foreground are starting to transition from green to the yellows and oranges of fall.

Deeply variegated leaves of wild ginger with pale green patterns overlying a dark mint green stick out against the browns of the forest floor

Deeply variegated leaves of wild ginger with pale green patterns overlying a dark mint green stick out against the browns of the forest floor

Pale purple aster flowers pop next to leaves in the midst of fall colors change

Pale purple aster flowers pop next to leaves in the midst of fall colors change

Saturday site visit today at Abram's Falls with @ryanbstephens.bsky.social, beautiful fall weather, and the onset of fall colors in southern Appalachia πŸπŸ‚

11.10.2025 20:56 πŸ‘ 13 πŸ” 1 πŸ’¬ 0 πŸ“Œ 1
An ad for a PhD position to start fall 2026 working with me at ETSU. For more info, please email at LeeBR1@etsu.edu.

An ad for a PhD position to start fall 2026 working with me at ETSU. For more info, please email at LeeBR1@etsu.edu.

A close-up picture of dimpled trout lilies active in early spring, still largely surrounded by the previous year's senesced tree leaves.

A close-up picture of dimpled trout lilies active in early spring, still largely surrounded by the previous year's senesced tree leaves.

A beautiful vista of the Blue Ridge Mountains from on top of Carver's Gap on the border between North Carolina and Tennessee.

A beautiful vista of the Blue Ridge Mountains from on top of Carver's Gap on the border between North Carolina and Tennessee.

🚨 Please repost widely!🚨

I am recruiting a PhD student to join my lab next fall to work on forest and climate change ecology projects in southern Appalachia! Come join me in one of the most beautiful, biodiverse, and understudied parts of North America. Details below and happy to answer questions

03.10.2025 16:45 πŸ‘ 52 πŸ” 56 πŸ’¬ 2 πŸ“Œ 2

You know your Google Scholar alerts are keyed in when it suggests your own papers and your student's theses!

18.08.2025 15:43 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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I'm hiring! Please share!
Join me this winter as a #wildlife #ecology technician. 6 months at $18/hr and subsidized housing available. Maintain a #cameratrap array, #bobcat and #fisher live trapping transects, and telemetry. More: blackrockforest.org/work_with_us

15.08.2025 21:13 πŸ‘ 3 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

Dang!

16.08.2025 02:29 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Nice, thanks! Was actually just looking at that one this afternoon.

16.08.2025 02:28 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

annihilated*

16.08.2025 02:26 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I'm #teaching an introduction to research class in #biology for undergraduates this term. Anyone have a good suggestion for a short paper or text on questions, objectives, and hypothesis with a biology focus?

15.08.2025 19:13 πŸ‘ 2 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0

Looks salvageable. We had an 18 inch white pine that absolutely initiated one of ours.

15.08.2025 18:42 πŸ‘ 1 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0

Thanks! Wish we had more voices like yours here in the USA!

11.08.2025 15:21 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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I'm giving a talk on Tuesday about carnivores as dispersers of mycorrhizal fungal spores as part of a special session on fungal spore dispersal. Come check it out if you are here in Baltimore and like fungi, carnivores, or trophic interactions. #ESA2025

11.08.2025 01:46 πŸ‘ 12 πŸ” 6 πŸ’¬ 1 πŸ“Œ 1
Mechanisms that potentially contribute to the maintenance of interactions between bacteria, ectomycorrhizal fungi (EcMF), and land trees across varied developmental periods.

Mechanisms that potentially contribute to the maintenance of interactions between bacteria, ectomycorrhizal fungi (EcMF), and land trees across varied developmental periods.

β€œβ€¦when organisms interact can largely determine how they interact.”

#Viewpoint: Is it all about timing? Identifying the symbiosis critical points that govern interactions among #bacteria, ectomycorrhizal #fungi, and land #trees

By Louis Berrios πŸ‘‡

πŸ“– nph.onlinelibrary.wiley.com/doi/10.1111/...

08.08.2025 13:01 πŸ‘ 18 πŸ” 12 πŸ’¬ 1 πŸ“Œ 0

Congrats!

04.08.2025 21:15 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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How climate shapes soil fungal traits Many soil microbes play a vital role in ecosystems, as they help plants access nutrients and water and assist in stress tolerance such as during drought and to defend against pathogens. One such group...

Our new global study led by @smriti-pehim-limbu.bsky.social is now out in @pnas.org. TLDR: Certain spore traits were linked to climate AND species range sizes! YES we can use traits to gain insight into env adaptations for microbes.

#mycorrhizas #spores #NSFfunded
www.eurekalert.org/news-release...

29.07.2025 18:43 πŸ‘ 42 πŸ” 17 πŸ’¬ 1 πŸ“Œ 1
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Measuring Personality in Wild Small Mammals: A Review of Methods and Proposal for a Standardised Approach We provide a systematic review of methodologies used to study personality in small mammals. We propose adopting β€˜Standardised Experimental Design’ and β€˜Behavioural Measurements’ to effectively compar...

Our review led by S. Savazza "Measuring Personality in Wild Small Mammals: A Review of Methods and Proposal for a Standardised Approach" is out, free open access, in mammal review
onlinelibrary.wiley.com/doi/10.1111/...

17.07.2025 13:19 πŸ‘ 8 πŸ” 5 πŸ’¬ 0 πŸ“Œ 0
A map showing telemetry and roost locations of sympatric northern and southern flying squirrels at a location in Ontario, Canada

A map showing telemetry and roost locations of sympatric northern and southern flying squirrels at a location in Ontario, Canada

New from Rebekah Persad and the Kawartha Flying Squirrel Project: Home range size, habitat selection, and mycophagy of sympatric North American flying squirrels esajournals.onlinelibrary.wiley.com/doi/10.1002/...

14.07.2025 14:12 πŸ‘ 5 πŸ” 3 πŸ’¬ 0 πŸ“Œ 1
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Big day in the lab. Noah, successfully defended his thesis (my first student) and knocked it out of the park! I also submitted a manuscript from a project that we have been working on for about 6 years.

09.07.2025 20:21 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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New paper out! πŸ™οΈ We found that urbanisation simplifies and homogenises seed dispersal networks. πŸͺ΄πŸ¦β€β¬› Non-native plants dominate in cities, accounting for 61% πŸ˜” of interactions in the urban network vs just 15% in forests! πŸͺ»πŸŒΏπŸŒ΄
Check it out: doi.org/10.1111/cobi...
🌐πŸ§ͺ🌍🍁

03.07.2025 10:58 πŸ‘ 26 πŸ” 13 πŸ’¬ 2 πŸ“Œ 0
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#Truffles are out! We found some nice Tuber and Destuntzia collections, among others.

02.07.2025 13:06 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Ectomycorrhizal fungal community succession and fragmentation across forest edges nearly three decades postharvest Forest management for wood products involves the conversion of primary forests to younger plantations. This has an immediate impact on biota such as ectomycorrhizal fungi, a diverse symbiotic fungal ...

Forestry trials set up decades ago are key to understanding long term outcomes of management. This study looks at recovery of EcM fungi nearly 30 years (!) post harvest. Nice workπŸ‘from a great team.

nph.onlinelibrary.wiley.com/doi/full/10....

19.06.2025 22:55 πŸ‘ 33 πŸ” 8 πŸ’¬ 1 πŸ“Œ 3
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The biogeography and conservation of Earth’s β€˜dark’ ectomycorrhizal fungi In this review, van Galen et al. use global soil metabarcoding databases to evaluate current estimates of the total number of ectomycorrhizal (EcM) fungal species on Earth, outline the current state o...

Our paper shows that most ectomycorrhizal fungal species (83% of OTUs) are "dark taxa": species we detect in DNA, but can't match to known species names. We map global "darkspots" - the parts of the world most in need of more research. @spun.earth @ethz.ch www.cell.com/current-biol...

10.06.2025 00:39 πŸ‘ 92 πŸ” 41 πŸ’¬ 4 πŸ“Œ 4