Program / Abstracts / Participants (pdfs)

Sunday April 7, 2024

Location: Loon Lake Resort, Maple Ridge, Canada

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15:00  Start of registration - [Bentley Hall]

17:00-18:00  Greetings + Snow Melting - [Koerner Kitchen]

18:15-19:15  Dinner - [Bentley Hall]

20:00- 22:00  ITEX Film night - [Koerner Classroom]

Monday April 8, 2024

Location: Loon Lake Resort, Maple Ridge, Canada

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7:30 - 8:30  Breakfast - [Bentley Hall]

8:30 - 8:45  Welcome - Organizing committee - Outline of meeting  ITEX A history of collaboration (Robert Hollister) - [Koerner Classroom]

8.45 - 10.30   Plenary Session: Completed syntheses (20 min talks), Chair Christian Rixen - [Koerner Classroom]

   8:45 -   9:05  1 Hidden diversity as the source of biodiversity and trait change in the tundra (Gergana Daskalova - online)
   9.05 -   9.25  2 What ‘sets the clock’ on above and below-ground tundra phenology? A synthesis of phenocam and in-growth core data (Elise Gallois - online)
   9:25 -   9:45  Patterns in vascular plant functional diversity extend to the high latitudes but suggest a declining resilienc to global change (Joseph Everest) 
                         Does earlier = more? Exploring the links between phenology and productivity (Sarah Elmendorf)
   9:45 - 10:05  ITEX+ Database and the next phase of tundra data synthesis. Introduction to Github, Google Scholar and Slack (Anne Bjorkman, Cassandra Elphinstone et al)

10:05 - 10:30  Lightning talks session 1, 3 min talks (Posters 1-9) Chair Cassandra Elphinstone

• Ingibjörg Svala Jónsdóttir    Ambient and experimental warming caused stronger changes in tundra plant communities in Iceland than grazing exclusion & Increased biocrust cover and activity in the highlands of Iceland after five growing seasons of experimental warming
• Joel White    The missing methane sink: Arctic methane consumption responses to future vegetation regimes
• Siri Lie Olsen    Three decades of environmental change studies at alpine Finse, Norway: responses across ecological scales
• Ji Young Jung    Changes in soil organic matter characteristics under warming in Arctic tundra
• Sarah Schwieger    Macro-environment strongly interacts with warming in a global analysis of decomposition

10:45 - 11:05   Coffee break - [Koerner Kitchen]

11:05 - 12:35  Plenary Session: Completed syntheses (20 min talks), Chair Sarah Elmendorf - [Koerner Classroom]

   11:05 - 11:25   Plant diversity dynamics over space and time in a warming Arctic (Mariana García Criado)
   11:25 - 11:45   Plant abundance drives beta-diversity changes in the Arctic (Robert Björk)
   11:45 - 12:05  Warming differentially affects vegetative and reproductive phenology and drives reproductive fitness in a changing Arctic (Courtney Collins)
   12:05 - 12:20  Genome-wide changes induced by long term warming in tundra plants  (Cassandra Elphinstone)

12:30 - 13:30  Lunch - [Bentley Hall]

13:30 - 14:00  Lightning talks session 2, 3 min talks (Posters 10-17) Chair Courtney Collins - [Koerner Classroom]

• Tabatha Fuson    Assessing terrestrial Lidar precision in an Arctic tundra setting for use in detecting fine-scale permafrost subsidence
• Nicola Rammell    Effects of longterm experimental warming on plant community traits in a High Arctic shrub tundra ecosystem
• Shengwei Zong    Vegetation change in the alpine tundra of the Changbai Mountains, Northeast China
• Mats P. Björkman    The continuation of ITEX carbon synthesis – The hunt for GPP and NEE data
• Teagan Maclachlan    Plant species and communities respond differently to human trampling disturbance
• Sergio Vargas    Spatiotemporal variability in plant community phenology revealed from decadal phenocam time series on the north slope of Alaska & Arctic tundra microtopographic variability: comparing remote sensing approaches for change detection analysis & Examining Tundra Greening from Ground-based to Satellite Observations

14:00 – 15:20  Plenary Session: Completed syntheses (20 min talks), Chair Alessandro Petraglia  - [Koerner Classroom]

   14:00 - 14:20 9 Ecosystem respiration responses to warming across the tundra: magnitude, environmental drivers, and future needs (Ellen Doorepaal)
   14:20 - 14:40 Arctic soil labile nitrogen changes: A meta-analysis on the responses of soil labile nitrogen pools to experimental warming and snow addition (Kim You Jin)
   14:40 - 15:00 Arctic methane dynamics under warming: Evidence of decreased fluxes in non-permafrost areas (Jan Dietrich)

15:00 - 15:30 Coffee break - [Koerner Kitchen]

   15:30 -15:50 Intraspecific trait variation in alpine plants relates to their elevational distribution (Christian Rixen)

15:50 - 16:20 Lightning talks session 3, 3 min talks (Posters 18-24) Chair Noémie Boulanger-Lapointe

• Mikel Moriana Armendariz    Effects of subalpine species on community composition of alpine ecosystems. A transplant experiment
• Xiaoyi Wang    The role of intraspecific trait variability in Arctic plant productivity
• Zoe Panchen    No problems only opportunities: Cape Bounty vegetation cover changes with snow and warming treatments
• Karen Beard    A decade of climate change research in the Yukon-Kuskokwim Delta, Western Alaska
• Minna Rolfson Bergenhorn    Influence of experimental warming and wetting on methane and carbon dioxide fluxes in an Arctic tundra landscape
• Hannah Lee    Warming and permafrost degradation stimulates above and belowground processes to affect greenhouse gas exchange
• Elisabeth Cooper    Timing of the end of plant growth season is influenced by snowmelt and soil moisture on Svalbard
• Taylor Doorn    Using seasonal NDVI to predict plant cover in tundra ecosystems
• Jenna Boelkins    Documenting mycorrhizal infection of plant species in Atqasuk, Alaska

16:20 - 18:00 Poster presentations - [Johnson Rooms]

18:00 - 19:00 Dinner - [Bentley Hall]

19:30 - 21:00 Plenary Talk. Cease Wyss-Local ethnobotany - [Koerner Classroom]

Tuesday April 9, 2024

Location: Loon Lake Resort, Maple Ridge, Canada

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7:30 - 8:30 Breakfast - [Bentley Hall]

8:30 - 8:45 Introduction to the organization of the day - [Koerner Classroom]

8.45 - 9:15 Lightning talks session 4 (3 min talks, Posters 25-34) Chair Cassandra Elphinstone - [Koerner classroom]

• Cole Brachmann    Phenology and reproductive effort in Arctic tundra plant species exposed to passive warming
• Kathy Kelsey    Flooding and warming alter summer land-atmosphere gas exchange in a high latitude coastal wetland
• Abbey Serrone    Occurrences and consequences of extreme weather events in the terrestrial Arctic
• Matteo Petit Bon    Experimental flooding and warming rapidly increase graminoid biomass in high-latitude coastal wetland
• Tyler Williams    Effects of warming, flooding, and herbivory on plant communities and greenhouse gas emissions: a mesocosm study in the Yukon-Kuskokwim Delta, Alaska
• Kai Sattler    Warm Pockets in cold places: Landscape heterogeneity and plant adaptation
• Marcel Carita Vaz    The mechanism driving leaf senescence in Eriophorum vaginatum is maladaptive under the fast climate warming of the Alaskan Arctic
• Claire Czadzeck    Changes in the frequency of flowering in forbs over time
• Justin Blough    Outreach, interactivity, and the Arctic Ecology Program at GVSU
• Katlyn May    Vegetation community change at Toolik Lake, Alaska

9:15 - 10:45 Workshop Sessions- Part 1: Ongoing syntheses (Parallel workshops)

   [Johnson Arbutus]   Tundra thermophilization 2.0 (Isla Myers-Smith & Anne Bjorkman)
   [Johnson Yew]   Tundra bryophytes - functional diversity and responses to warming (Signe Lett and Ingibjörg Svala Jónsdóttir)
   [Koerner Classroom]   Plant functional traits and experimental warming (Katrín Björnsdóttir)
   [Johnson Middle Rm]   Maintenance of long-term ITEX sites (Ellen Dorrepaal)

10:45 - 11:00 Coffee break - [Koerner Kitchen]

11:00 - 12:30  Workshop Sessions - Part 2: New and ongoing syntheses (Parallel workshops)

   [Koerner Classroom]   Data and code repository management (Anne Bjorkman, Mariana García Criado, Cassandra Elphinstone, Sarah Elmendorf, Isla Myers-Smith)
   [Koerner Classroom]   Phenocam and phenology syntheses (Isla Myers-Smith, Sarah Elmendorf, Craig Tweedie, Katherine Young et al.)
   [Johnson Yew]   Arctic plant borealization synthesis (Mariana García Criado)
   [Johnson Middle Rm]   The phylogeny of phenology: Is Arctic plant phenology evolutionary conserved? (Zoe Panchen)

12:30 - 13:30 Lunch - [Bentley Hall]

13:30 - 14:30 Break - explore, walk, canoe

13:30 - 14:30 Phenocam (continued) - [Koerner Classroom]

14:30 - 15:45  Reports from Workshop Sessions- Part 1 and 2: Ongoing syntheses Chair Robert Björk - [Koerner Classroom]

15:45 - 16:00 Coffee break - [Koerner Kitchen]

16:00 - 16:30 Lightning talks session 5 (3 min talks, Posters 35-46)  Chair Cassandra Elphinstone - [Koerner Classroom]

• Scott Branham    Using ArcGIS Pro Raster Classification Tools to map Salix patches and plant communities
• Victoria Villagomez    Exploring HSV Color Space Indices for tracking Arctic Tundra vegetation phenology
• Ciara Norton    Mapping the spatial distribution of alpine plant communities in Garibaldi Park, BC, Canada
• Filippo Grillo    Plant species richness, stability and homogenization of two alpine snowbed communities in response to summer warming
• Harshavardhini   Bagavathyraj    Multi-modal segmentation of tussock cotton grass (Eriophorum vaginatum) in UAV imagery using deep learning approach
• Jeremy May    Effects of winter warming events on dry heath tundra vegetation mortality and community productivity near Toolik Lake, Alaska
• Esther Frei    Three decades of vegetation change at the alpine ITEX site Val Bercla
• Christian Rixen    Warming underpins community turnover in temperate freshwater and terrestrial communities
• Lisa Pilkinton    Exploring the role of mycorrhizal associations in shrub expansion across the tundra biome
• Bjorn Larson    Expanding the range of phenology measurements with low-cost phenocams

16:30 - 18:00 Poster presentations and cash bar - [Johnson Rooms]

18:00 - 19:00 Dinner - [Bentley Hall]

19:30 - 22:00+ Music night / visiting / stargazing / fire pits  - [Koerner Classroom & elsewhere]

Wednesday April 10, 2024

Location: Loon Lake Resort, Maple Ridge, Canada

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7:30 - 8:30 Breakfast - [Bentley Hall]

8:45 - 9:00 Organization of the (last) day- [Koerner classroom]

9:00 - 10:30    Workshop Sessions - Part 3: New syntheses (Parallel workshops)

   [Johnson Arbutus]   Pan-Arctic diversity of mycorrhizal fungi (Robert Björk & Lisa Pinkiton)
   [Johnson Yew]   Incorporating adaptation and genomic studies in ITEX (Cassandra Elphinstone)
   [Koerner Classroom]   Extreme weather and extreme events (Mats Björkman)
   [Johnson Middle Rm]   Remote sensing from drones to satellites and ITEX (Isla Myers-Smith et al.)

10:30 - 10:45   Coffee break - [Koerner Kitchen]

10:45 - 11:30 Summary from Workshop Sessions - Part 3 Chair Ingibjörg Svala Jónsdóttir - [Koerner Classroom]

11:30 - 12:30 ITEX Business + end of meeting - [Koerner Classroom]

12:30 - 13:30 Lunch - [Bentley Hall]

13:30 - 17:00 Afternoon excursion - [Golden Ears Park and return to Vancouver]

Thursday April 11, 2024

Mountains to Ocean in Vancouver.

• Travel to Cypress Park, a mountain park with a ski area and enjoy hiking some of the trails

• Lunch at Horseshoe Bay in West Vancouver

• Travel to Lighthouse Park and walk along the coastline with a view of English Bay and Vancouver harbour

• Return to Olympic Village for dinner together after the excursion

Host: Greg Henry
Steering Group: Cassandra Elphinstone, Courtney Collins, Nicola Rammell, Noémie Boulanger-Lapointe