Paul Szejner

Assistant Professor
Instituto de Geología Universidad Nacional Autonoma de Mexico
107
Participates in 6 items

As a forest ecologist, I use stable isotopes in tree rings to study the relationships between plant physiology and environmental changes. I am interested in the mechanisms driving carbon and water fluxes on forested regions from seasonal to centennial scales.

Sessions in which Paul Szejner participates

Monday 27 June, 2022

Time Zone: (GMT-05:00) Eastern Time (US & Canada)
Workshop. Best practices for using tree-ring stable isotopes of Carbon and Oxygen in paleoclimate and ecophysiology.
13:30 - 17:00 | 3 hours 30 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Classroom (SH-3260)

Tuesday 28 June, 2022

Time Zone: (GMT-05:00) Eastern Time (US & Canada)
General Session (Dendrogeochemistry)
15:15 - 17:15 | 2 hours
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)
Long-term drought effects on semi-arid forests influenced tree capacity to respond to abrupt seasonal changes
16:15 - 16:30 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)

Wednesday 29 June, 2022

Time Zone: (GMT-05:00) Eastern Time (US & Canada)
General Session (Dendrogeochemistry) (reescheduled)
15:15 - 17:15 | 2 hours
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)
Long-term drought effects on semi-arid forests influenced tree capacity to respond to abrupt seasonal changes (reescheduled)
16:15 - 16:30 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)

Thursday 30 June, 2022

Time Zone: (GMT-05:00) Eastern Time (US & Canada)
Symposium 3. Ecophysiological interpretations of stable isotopes in dendroecology
14:05 - 15:50 | 1 hour 45 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)

Sessions in which Paul Szejner attends

Monday 27 June, 2022

Time Zone: (GMT-05:00) Eastern Time (US & Canada)
Workshop. Use and applications of the process-based model MAIDENiso
8:30 - 12:30 | 4 hours
Coeur des Sciences, Sherbrooke Building, UQAM - Classroom (SH-3420)
Workshop. openDendro: Advanced Open-source Tools for Dendrochronology and Paleoenvironmental Reconstruction
13:30 - 17:30 | 4 hours
Coeur des Sciences, Sherbrooke Building, UQAM - Classroom (SH-3420)

Tuesday 28 June, 2022

Time Zone: (GMT-05:00) Eastern Time (US & Canada)
Welcome
8:25 - 8:44 | 19 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)
Dr. Florence Hawley Ellis Lecture (Keynote presentation)
8:45 - 9:15 | 30 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)
General Session (Dendroclimatology, PT1)
9:20 - 10:35 | 1 hour 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Classroom (SH-3420)
General Session (Dendroecology, PT1)
9:20 - 10:35 | 1 hour 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)
Tree-ring data reject the leading edge-trailing edge hypothesis for species range change
9:20 - 9:35 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)
Symposium 1 (PT 1). Tree rings from national forest inventories: a timely opportunity to assess tree growth across space and through time
9:20 - 10:35 | 1 hour 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)
Unprecedented increase in tree growth rates in boreal forests on the Taiga Shield during the 21st century
9:35 - 9:50 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)
Long-term carbon storage and residence time in old-growth forests
10:05 - 10:20 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)
Volcanic Cooling Events: Impacts on Climate and Indigenous Peoples in Northwestern North America
10:05 - 10:20 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Classroom (SH-3420)
Growth and wood density in conifer forest: a climatic analysis of samples from Mexico's National Forest Inventory
11:00 - 11:15 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)
Modelling future temporal and spatial growth dynamics of Pinus sylvestris across Europe
11:00 - 11:15 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Classroom (SH-3420)
Symposium 1 (PT 2). Tree rings from national forest inventories: a timely opportunity to assess tree growth across space and through time
11:00 - 12:15 | 1 hour 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)
General Session (New perspectives and developments)
11:00 - 12:15 | 1 hour 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)
Emerging technologies with dendrochronology: platforms, progress, and potential
11:15 - 11:30 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)
A 247-years tree-ring reconstruction of spring temperature and relation to spring flooding in Eastern Boreal Canada
11:15 - 11:30 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Classroom (SH-3420)
To discard or not to discard: On cross-dating ecological tree-ring collections
11:30 - 11:45 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)
Impact of climate change on the growth of main tree species in Romania using dendrochronological data
11:45 - 12:00 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)
800 years of summer European-North Atlantic jet stream variability and its impact on climate extremes and human systems
12:00 - 12:15 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Classroom (SH-3420)
Tree-rings as a natural encyclopedia: itinerant and interactive exhibition as an educational tool for students
12:00 - 12:15 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)
General Session (Dendroclimatology, PT3)
13:30 - 15:00 | 1 hour 30 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Classroom (SH-3420)
Symposium 5. Applications of dendrochronology in urban environments
13:30 - 15:00 | 1 hour 30 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)
General Session (Ecophysiology)
13:30 - 17:00 | 1 day 3 hours 30 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)
Interpretation of intra-annual tree-ring δ13C profiles of control, droughted and re-watered Scots pines
14:00 - 14:15 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)
Long-term eddy covariance fluxes and xylem anatomy for understanding carbon fixation in white pine woody biomass
14:15 - 14:30 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)
Drought tolerance differs between urban tree species but is not affected by traffic pollution
14:30 - 14:45 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)
Potential growth scenarios for boreal forests with the ecophysiological model MAIDEN
14:45 - 15:00 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)
New annually resolved records of Neogene Arctic climate from tree rings and estuarine shells from the Canadian Arctic
15:15 - 15:30 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)
500 years of past temperatures derived using Blue Intensity from Araucaria araucana in Northern Patagonia, Argentina
15:30 - 15:45 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Classroom (SH-3420)
Climate signals in tree-ring chemical components of Cedrela fissilis Vell. growing in Brazilian Amazon
15:30 - 15:45 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)
Recent increases in tropical cyclone precipitation extremes over the US east coast
15:45 - 16:00 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Classroom (SH-3420)
Tracking Water Sources and Root Water Uptake of Boreal Trees on Fluvioglacial Deposits: Perspectives from Stable Isotope
15:45 - 16:00 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)
A new snow module improves predictions of isotope-enabled MAIDENiso forest growth model
16:00 - 16:15 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)
Dendroprovenancing instream wood at the watershed scale
16:30 - 16:45 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)
Isotope-inferred temperature variations in Northern Patagonia are asynchronous with global records over the last 1000-y
16:30 - 16:45 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Classroom (SH-3420)
Dendrochronological Evidence of Extreme Events on the Gulf of Mexico Coast
16:45 - 17:00 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)
Tree-ring reconstructions of streamflow variability for Southeastern U.S. Interstate Rivers
16:45 - 17:00 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Classroom (SH-3420)
Persistent and cumulative impacts of drought on forest growth: a Douglas fir case study
17:00 - 17:15 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Classroom (SH-3420)

Wednesday 29 June, 2022

Time Zone: (GMT-05:00) Eastern Time (US & Canada)
Exact Dating of the First Europeans in the Americas (Keynote presentation)
8:45 - 9:15 | 30 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)
Symposium 2. Common garden experiments to evaluate tree adaptation in a changing climate
9:20 - 10:35 | 1 hour 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)
A dendrochronological approach to reveal climate sensitivities and productivity of Douglas-fir in a long-term range-wide
9:35 - 9:50 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)
The evolutionary value of tree-ring plasticity in Douglas-fir
9:50 - 10:05 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)
Joining dendroecology and genomic approaches to identify genes implicated in resilience to drought in the model conifer
10:05 - 10:20 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)
The use of common gardens and dendroecology to guide assisted gene flow in black spruce
10:20 - 10:35 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)
Four decades of paleoflood hydrology through wood anatomy
11:00 - 11:15 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)
General Session (Dendrogeosystems)
11:00 - 12:15 | 1 hour 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)
Assessing Vulnerability of American Holly (Ilex opaca) Trees in Coastal Maritime Forests of N.Y. and N.J.
11:15 - 11:30 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)
Proxy versus Modelled Hydrology, Saskatchewan and Athabasca River Basins
11:30 - 11:45 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)
Drought legacy effects in radial tree growth are meaningful but rarely significant under heightened statistical scrutiny
11:45 - 12:00 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)
Poster Session
12:30 - 14:30 | 2 hours
Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)
Intra-annual relationships between δ13C ratios and xylogenesis for Black Spruce (Eastern North America)
12:30 - 14:00 | 1 hour 30 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)
Integrating xylogenesis in carbon balance projections for boreal forests
12:30 - 14:00 | 1 hour 30 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)
The unknown third - the exploring the climatic and non-climatic signals in hydrogen isotopes in tree-ring cellulose
12:30 - 14:00 | 1 hour 30 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)
Spatio-temporal analysis of soil moisture variations explains the tree-growth decline of multiple species in Mediterranean
12:30 - 14:00 | 1 hour 30 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)
Non-pooled oak stable isotopes reveal enhanced climate sensitivity compared to ring widths
12:30 - 14:00 | 1 hour 30 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)
Intra- and inter-annual productivity of Betula glandulosa in Umiujaq, Nunavik (QC)
12:30 - 14:00 | 1 hour 30 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)
Tree‑ring oxygen isotopes as an indicator of hydroclimate variation in eastern Amazon over the past century
12:30 - 14:00 | 1 hour 30 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)
Intra-annual isotopes for water management in the Metropolitan Area of Sao Paulo / Brazil
12:30 - 14:00 | 1 hour 30 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)
Hydroclimate and ENSO Variability Recorded by Oxygen Isotopes From Tree Rings in the South American Altiplano
12:30 - 14:00 | 1 hour 30 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)
Reconstructing Maximum flows using tree rings in Semiarid-Mediterranean climate transition of Chile
12:30 - 14:00 | 1 hour 30 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)
TRS-Awards ceremony & FREE Pre-Dining cocktail
18:30 - 21:00 | 2 hours 30 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Agora Hydro-Québec (CO-R500)

Thursday 30 June, 2022

Time Zone: (GMT-05:00) Eastern Time (US & Canada)
A tipping point for tropical tree longevity (Keynote presentation)
8:45 - 9:15 | 30 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)
Symposium 8 (PT 1). Dendrochronological progress in tropical Americas
9:20 - 10:50 | 1 hour 30 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)
Multiproxy approaches to understanding the formation of tree rings in tropical species: exploring anatomical, physical a…
9:20 - 9:27 | 7 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)
Using wood autofluorescence to explore the diversity of wood anatomy in the tropics and improve tree-ring visualization
9:28 - 9:35 | 7 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)
Advances in quantitative wood anatomy and radiocarbon dating to better assess climate sensitivity in the Andean Tropics
9:35 - 9:42 | 7 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)
Wood anatomy of Puerto Rican trees: an ecological archive without tree-rings
9:43 - 9:50 | 7 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)
Panel Discussion (1)
9:50 - 10:05 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)
Age structure and climate sensitivity of a high Andean relict forest of Polylepis rodolfo-vasquezii in central Peru
10:05 - 10:12 | 7 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)
Revealing Polylepis microphylla as novel Andean specie suitable for dendrochronology and quantitative wood anatomy
10:13 - 10:20 | 7 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)
A 389-yrs precipitation changes in the Northern South American Altiplano reveals an increase in extreme drought events s
10:20 - 10:27 | 7 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)
Climate and physiological signals in tree-ring stable isotopes of Polylepis tarapacana from the South American Altiplano
10:28 - 10:35 | 7 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)
Panel Discussion (2)
10:35 - 10:50 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)
Symposium 8 (PT 2). Dendrochronological progress in tropical Americas
11:00 - 12:15 | 1 hour 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)
Annual growth rhythm evidence of trees from the rainiest neotropical region
11:00 - 11:07 | 7 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)
Assessing the dendroclimatic potential of tropical tree species in northern Bolivia
11:08 - 11:15 | 7 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)
Panel Discussion (3)
11:30 - 11:45 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)
A North Tropical Atlantic Sea Surface Temperature Reconstruction from the Dominican Republic Using Pinus occidentalis
11:45 - 11:52 | 7 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)
Central American Tree-Ring Research: A Review
11:53 - 12:00 | 7 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)
Panel Discussion (4)
12:00 - 12:07 | 7 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)
Short fire intervals and long tree ring chronologies in the eastern Canadian taiga (Keynote presentation)
13:25 - 14:00 | 35 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)
Landscape influences on the oxygen isotope of tree rings within a watershed in the western U.S.
14:05 - 14:20 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)
Differential use of North American Monsoon precipitation by Pinus ponderosa in the American southwest
14:20 - 14:35 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)
The phylogenetic impact on hydrogen isotopes in sugars and cellulose of woody plant species
14:35 - 14:50 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)
Effects of simulated increases in nitrogen deposition on a mature temperate forest as revealed by a dendroecological app…
14:50 - 15:05 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)
Global trends and drivers of photosynthetic carbon isotope discrimination in trees
15:05 - 15:20 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)
The North American Monsoon and the Megadrought: How Precipitation Influences Forest Responses to Drought Conditions
15:20 - 15:35 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)
Ecophysiological response of white spruce to climate in high-latitude boreal forests in North America
15:35 - 15:50 | 15 minutes
Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)