Shalik Ram Sigdel
@sigdelshalik.bsky.social
Associate Reseacher at Institute of Tibetan Plateau Research, CAS Beijing, Passionate about alpine plant ecology, Treeline, #Himalayas, Global Change Ecology, Functional ecology, Dendroecology. Views are my own
https://x.com/sigdelshalik
https://x.com/sigdelshalik
Pinned
Accelerated succession in Himalayan alpine treelines under climatic warming - Nature Plants
Climate warming is accelerating successional dynamics, with late-successional species rapidly outcompeting pioneer species at Himalayan treeline ecotones, offering insight into future forest successio...
www.nature.com
Accelerated succession in Himalayan alpine treelines under climatic warming
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Reposted by Shalik Ram Sigdel
📖 Published!
This extensive plot-based field resurvey at treelines on the Tibetan Plateau shows that tree mortality is directly related to intraspecific competition, providing new insights into the underlying mechanisms of treeline shifts🌲⛰️
🔎 Read more: buff.ly/Unjacpn
This extensive plot-based field resurvey at treelines on the Tibetan Plateau shows that tree mortality is directly related to intraspecific competition, providing new insights into the underlying mechanisms of treeline shifts🌲⛰️
🔎 Read more: buff.ly/Unjacpn
January 12, 2026 at 4:03 PM
📖 Published!
This extensive plot-based field resurvey at treelines on the Tibetan Plateau shows that tree mortality is directly related to intraspecific competition, providing new insights into the underlying mechanisms of treeline shifts🌲⛰️
🔎 Read more: buff.ly/Unjacpn
This extensive plot-based field resurvey at treelines on the Tibetan Plateau shows that tree mortality is directly related to intraspecific competition, providing new insights into the underlying mechanisms of treeline shifts🌲⛰️
🔎 Read more: buff.ly/Unjacpn
Reposted by Shalik Ram Sigdel
Climate change has already reshaped the bioclimatic space of extreme events in the Arctic 🌐❄️ Arctic biodiversity has entered a new era of bioclimatic extremes w/ more droughts, greater winter-warming 📈 & more rain-on-snow events 💧❄️
shorturl.at/pQsVP
Just published in Science Advances ⬇️
shorturl.at/pQsVP
Just published in Science Advances ⬇️
A new era of bioclimatic extremes in the terrestrial Arctic
Long-term climate data suggest that the Arctic is entering a new era of bioclimatic extremes threatening cold ecosystems.
shorturl.at
January 9, 2026 at 6:31 AM
Climate change has already reshaped the bioclimatic space of extreme events in the Arctic 🌐❄️ Arctic biodiversity has entered a new era of bioclimatic extremes w/ more droughts, greater winter-warming 📈 & more rain-on-snow events 💧❄️
shorturl.at/pQsVP
Just published in Science Advances ⬇️
shorturl.at/pQsVP
Just published in Science Advances ⬇️
Reposted by Shalik Ram Sigdel
Acclimation lags in alpine #grasslands reveal early warning signs of #ClimateChange
📖 nph.onlinelibrary.wiley.com/doi/10.1111/...
👆 A #Commentary by @karlandraczek.bsky.social on this article by Bektaş et al.
👇
📖 nph.onlinelibrary.wiley.com/doi/10.1111/...
#LatestIssue
📖 nph.onlinelibrary.wiley.com/doi/10.1111/...
👆 A #Commentary by @karlandraczek.bsky.social on this article by Bektaş et al.
👇
📖 nph.onlinelibrary.wiley.com/doi/10.1111/...
#LatestIssue
January 8, 2026 at 11:01 AM
Acclimation lags in alpine #grasslands reveal early warning signs of #ClimateChange
📖 nph.onlinelibrary.wiley.com/doi/10.1111/...
👆 A #Commentary by @karlandraczek.bsky.social on this article by Bektaş et al.
👇
📖 nph.onlinelibrary.wiley.com/doi/10.1111/...
#LatestIssue
📖 nph.onlinelibrary.wiley.com/doi/10.1111/...
👆 A #Commentary by @karlandraczek.bsky.social on this article by Bektaş et al.
👇
📖 nph.onlinelibrary.wiley.com/doi/10.1111/...
#LatestIssue
Reposted by Shalik Ram Sigdel
'Yes, forest trees die of old age. But the warming climate is killing them faster' #ClimateEmergency #Globalwarming #trees #eucalypts #plantscience #ecology 🪴🌳🌾🌱🌡️ theconversation.com/yes-forest-t...
Yes, forest trees die of old age. But the warming climate is killing them faster
The warming climate is killing Australia’s forest trees at a faster rate. This offers a glimpse of what may lie ahead for forests globally.
theconversation.com
January 7, 2026 at 1:10 AM
'Yes, forest trees die of old age. But the warming climate is killing them faster' #ClimateEmergency #Globalwarming #trees #eucalypts #plantscience #ecology 🪴🌳🌾🌱🌡️ theconversation.com/yes-forest-t...
#NewPublicationAlert. We are happy to share our new paper published in the @journalofecology.bsky.social. Here, we tested whether positive or negative tree-to-tree interactions drive seedling establishment & mortality within treeline ecotones.
besjournals.onlinelibrary.wiley.com/doi/10.1111/...
besjournals.onlinelibrary.wiley.com/doi/10.1111/...
January 5, 2026 at 2:13 PM
#NewPublicationAlert. We are happy to share our new paper published in the @journalofecology.bsky.social. Here, we tested whether positive or negative tree-to-tree interactions drive seedling establishment & mortality within treeline ecotones.
besjournals.onlinelibrary.wiley.com/doi/10.1111/...
besjournals.onlinelibrary.wiley.com/doi/10.1111/...
Reposted by Shalik Ram Sigdel
With 5 years remaining to meet #SDGs, our @pnas.org study shows: SDG progress has stalled/reversed at high levels, but gains made at low levels. Countries are off track to meet SDGs under current trends.
english.cas.cn/newsroom/res...
www.pnas.org/doi/epdf/10....
@rug.nl, @irees-research.bsky.social
english.cas.cn/newsroom/res...
www.pnas.org/doi/epdf/10....
@rug.nl, @irees-research.bsky.social
December 29, 2025 at 5:44 AM
With 5 years remaining to meet #SDGs, our @pnas.org study shows: SDG progress has stalled/reversed at high levels, but gains made at low levels. Countries are off track to meet SDGs under current trends.
english.cas.cn/newsroom/res...
www.pnas.org/doi/epdf/10....
@rug.nl, @irees-research.bsky.social
english.cas.cn/newsroom/res...
www.pnas.org/doi/epdf/10....
@rug.nl, @irees-research.bsky.social
Reposted by Shalik Ram Sigdel
We are hiring: 4 PhD Positions in Ecology / Data Science and one Ecological Data Scientist. For more information, see www.uni-regensburg.de/universitaet...
We are hiring: 4 PhD Positions in Ecology / Data Science and one Ecological Data Scientist
We are looking for 4 PhD Positions and one Scientific Programmer / Ecological Data Scientist to join the AG Hartig (Theoretical Ecology)
www.uni-regensburg.de
November 13, 2025 at 4:14 PM
We are hiring: 4 PhD Positions in Ecology / Data Science and one Ecological Data Scientist. For more information, see www.uni-regensburg.de/universitaet...
Reposted by Shalik Ram Sigdel
How have mountain building and climate change shaped alpine biodiversity over millions of years? Check out our new study in Science Advances! www.science.org/doi/10.1126/...
The asynchronous rise of Northern Hemisphere alpine floras reveals general responses of biotic assembly to orogeny and climate change
The asynchronous rise of Northern Hemisphere alpine floras was shaped by general responses to orogeny and climate change.
www.science.org
December 21, 2025 at 2:31 PM
How have mountain building and climate change shaped alpine biodiversity over millions of years? Check out our new study in Science Advances! www.science.org/doi/10.1126/...
Reposted by Shalik Ram Sigdel
Faster boundary shifts near the cold limit of species' niche
Zheng et al.
nph.onlinelibrary.wiley.com/doi/10.1111/...
Zheng et al.
nph.onlinelibrary.wiley.com/doi/10.1111/...
December 15, 2025 at 8:43 PM
Faster boundary shifts near the cold limit of species' niche
Zheng et al.
nph.onlinelibrary.wiley.com/doi/10.1111/...
Zheng et al.
nph.onlinelibrary.wiley.com/doi/10.1111/...
Our new article published in @newphyt.bsky.social. Here, we provide a crucial progress in understanding how plant species in the treeline respond to climate change by proposing the superior predictive power of a niche-based thermal sensitivity index.
nph.onlinelibrary.wiley.com/doi/10.1111/...
nph.onlinelibrary.wiley.com/doi/10.1111/...
December 13, 2025 at 4:35 AM
Our new article published in @newphyt.bsky.social. Here, we provide a crucial progress in understanding how plant species in the treeline respond to climate change by proposing the superior predictive power of a niche-based thermal sensitivity index.
nph.onlinelibrary.wiley.com/doi/10.1111/...
nph.onlinelibrary.wiley.com/doi/10.1111/...
Reposted by Shalik Ram Sigdel
Reposted by Shalik Ram Sigdel
Warming disrupts the spring synchrony of conifers, decoupling photosynthesis from wood growth. This indicates increased carbon uptake won't necessarily lead to more stored carbon, reducing forests' potential as a carbon sink. @natclimate.nature.com
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Warming increases the phenological mismatch between carbon sources and sinks in conifers - Nature Climate Change
Measurements of carbon fluxes and wood phenology are used to assess carbon sources from photosynthesis and their sink into woody growth along a thermal gradient. The authors show that stem growth adva...
www.nature.com
November 22, 2025 at 1:35 AM
Warming disrupts the spring synchrony of conifers, decoupling photosynthesis from wood growth. This indicates increased carbon uptake won't necessarily lead to more stored carbon, reducing forests' potential as a carbon sink. @natclimate.nature.com
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Reposted by Shalik Ram Sigdel
Reposted by Shalik Ram Sigdel
Patterns, dynamics and drivers of alpine treelines and shrublines
->Nature | More info from EcoSearch
->Nature | More info from EcoSearch
Patterns, dynamics and drivers of alpine treelines and shrublines
Körner, C. Alpine Plant Life: Functional Plant Ecology of High Mountain Ecosystems (Springer, 2021). Miehe, G., Miehe, S., Vogel, J., Co, S. & Duo, L. Highest treeline in the Northern Hemisphere found in southern Tibet. Mt. Res. Dev. 27, 169–173...
www.nature.com
July 24, 2025 at 3:34 PM
Reposted by Shalik Ram Sigdel
New online! Patterns, dynamics and drivers of alpine treelines and shrublines
Patterns, dynamics and drivers of alpine treelines and shrublines
Nature Reviews Earth & Environment, Published online: 24 July 2025; doi:10.1038/s43017-025-00703-9Alpine treelines and shrublines are advancing to higher elevations in the context of warming. This Review synthesizes global trends in ecotone dynamics, explores the underlying drivers and mechanisms, and considers the consequences to alpine regions.
www.nature.com
July 24, 2025 at 9:12 PM
New online! Patterns, dynamics and drivers of alpine treelines and shrublines
Happy to share our new article published in @natrevearthenviron.nature.com !
Here, we investigated the global patterns, dynamics, and drivers of alpine treelines & shrublines, as well as their ecological consequences on alpine environments under a warming climate.
www.nature.com/articles/s43...
Here, we investigated the global patterns, dynamics, and drivers of alpine treelines & shrublines, as well as their ecological consequences on alpine environments under a warming climate.
www.nature.com/articles/s43...
Patterns, dynamics and drivers of alpine treelines and shrublines - Nature Reviews Earth & Environment
Alpine treelines and shrublines are advancing to higher elevations in the context of warming. This Review synthesizes global trends in ecotone dynamics, explores the underlying drivers and mechanisms,...
www.nature.com
July 24, 2025 at 7:38 AM
Happy to share our new article published in @natrevearthenviron.nature.com !
Here, we investigated the global patterns, dynamics, and drivers of alpine treelines & shrublines, as well as their ecological consequences on alpine environments under a warming climate.
www.nature.com/articles/s43...
Here, we investigated the global patterns, dynamics, and drivers of alpine treelines & shrublines, as well as their ecological consequences on alpine environments under a warming climate.
www.nature.com/articles/s43...
Reposted by Shalik Ram Sigdel
New article alert 🚨 for the #FireEcology Journal! By Wentao Lin, Xiaoming Lu, @sigdelshalik.bsky.social, Jiangrong Li, Haifeng Zhu, Jian Sun, Lin Zhang, Gengxin Zhang, J. Julio Camarero & Eryuan Liang #SNFECO @tmtspringer.bsky.social
Read it here: ow.ly/c23y50Vu1VA
Read it here: ow.ly/c23y50Vu1VA
April 4, 2025 at 8:10 PM
New article alert 🚨 for the #FireEcology Journal! By Wentao Lin, Xiaoming Lu, @sigdelshalik.bsky.social, Jiangrong Li, Haifeng Zhu, Jian Sun, Lin Zhang, Gengxin Zhang, J. Julio Camarero & Eryuan Liang #SNFECO @tmtspringer.bsky.social
Read it here: ow.ly/c23y50Vu1VA
Read it here: ow.ly/c23y50Vu1VA
Happy to share our new publication. Here, we explored drivers of post-fire plant community dynamics in subalpine forests.
fireecology.springeropen.com/articles/10....
fireecology.springeropen.com/articles/10....
Disentangling the drivers of post-fire plant community dynamics in subalpine forests of the Tibetan Plateau - Fire Ecology
Background Wildfires impact forests including understory composition and modify environmental conditions such as canopy cover and soil fertility. The recovery of understory plant community composition...
fireecology.springeropen.com
April 2, 2025 at 6:05 AM
Happy to share our new publication. Here, we explored drivers of post-fire plant community dynamics in subalpine forests.
fireecology.springeropen.com/articles/10....
fireecology.springeropen.com/articles/10....
Our paper just published in Agricultural and Forest Meteorology. Here, we tested the resilience of alpine shrub growth to changing climatic conditions.
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
March 26, 2025 at 12:30 AM
Our paper just published in Agricultural and Forest Meteorology. Here, we tested the resilience of alpine shrub growth to changing climatic conditions.
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
Reposted by Shalik Ram Sigdel
In this paper @joseppenuelas proposes the IME (information, mass, energy) theory, that integrates the 5 laws of life by determining the relationships among information, mass and energy through time and after disturbances ✍️
@csic.es @creaf.cat @iec.cat
www.the-innovation.org/article/doi/...
@csic.es @creaf.cat @iec.cat
www.the-innovation.org/article/doi/...
The way we are, function and change: The information, mass and energy theory
www.the-innovation.org
January 14, 2025 at 9:14 AM
In this paper @joseppenuelas proposes the IME (information, mass, energy) theory, that integrates the 5 laws of life by determining the relationships among information, mass and energy through time and after disturbances ✍️
@csic.es @creaf.cat @iec.cat
www.the-innovation.org/article/doi/...
@csic.es @creaf.cat @iec.cat
www.the-innovation.org/article/doi/...
Reposted by Shalik Ram Sigdel
🌱 Seminar on functional trait ecology 🌱
I'll be discussing my research on Arctic plant traits next 14 Jan at the ECR seminar organised by @dittemch.bsky.social & Nadine Artz. So excited to present alongside legends
@bjenquist.bsky.social & @lacapary.bsky.social. Join us! forms.gle/gemqP82kQgpN...
I'll be discussing my research on Arctic plant traits next 14 Jan at the ECR seminar organised by @dittemch.bsky.social & Nadine Artz. So excited to present alongside legends
@bjenquist.bsky.social & @lacapary.bsky.social. Join us! forms.gle/gemqP82kQgpN...
January 8, 2025 at 1:05 PM
🌱 Seminar on functional trait ecology 🌱
I'll be discussing my research on Arctic plant traits next 14 Jan at the ECR seminar organised by @dittemch.bsky.social & Nadine Artz. So excited to present alongside legends
@bjenquist.bsky.social & @lacapary.bsky.social. Join us! forms.gle/gemqP82kQgpN...
I'll be discussing my research on Arctic plant traits next 14 Jan at the ECR seminar organised by @dittemch.bsky.social & Nadine Artz. So excited to present alongside legends
@bjenquist.bsky.social & @lacapary.bsky.social. Join us! forms.gle/gemqP82kQgpN...
Reposted by Shalik Ram Sigdel
Hydrology Paper of the Day @sigdelshalik on modelling the biogeography of fir and birch trees under climate change scenarios: fir trees will move upslope faster than birch trees; competition and succession; spatial analyses via the Programita software; and effects of scale.
Accelerated succession in Himalayan alpine treelines under climatic warming - Nature Plants
Climate warming is accelerating successional dynamics, with late-successional species rapidly outcompeting pioneer species at Himalayan treeline ecotones, offering insight into future forest successio...
www.nature.com
December 16, 2024 at 1:13 AM
Hydrology Paper of the Day @sigdelshalik on modelling the biogeography of fir and birch trees under climate change scenarios: fir trees will move upslope faster than birch trees; competition and succession; spatial analyses via the Programita software; and effects of scale.