Daniel Griffin

Assistant Professor

University of Minnesota

Participates in 2 items

Sessions in which Daniel Griffin participates

Tuesday 28 June, 2022

Time Zone: (GMT-05:00) Eastern Time (US & Canada)

11:00

General Session (New perspectives and developments)

1 hour 15 minutes, 11:00 - 12:15

Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)

Talk

James Capshew, Indiana University (Speaker)

Daniel Griffin, University of Minnesota (Speaker)

Milos Rydval, Czech University of Life Sciences Prague (Speaker)

Tomás Muñoz-Salazar, Universidad Austral de Chile (Speaker)

Neil Pederson, Harvard Forest (Speaker)

Scott St. George, University of Minnesota (Chair)

Ignacio Hermoso de Mendoza, Geotop (Chair)

11:15

Emerging technologies with dendrochronology: platforms, progress, and potential

15 minutes, 11:15 - 11:30

Part of: General Session (New perspectives and developments)

Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)

Talk

Daniel Griffin, University of Minnesota (Speaker)

Ultra high resolution imaging is becoming standard across the sciences and must be a priority for dendrochronology. Large format scanners fail t...

Sessions in which Daniel Griffin attends

Monday 27 June, 2022

Time Zone: (GMT-05:00) Eastern Time (US & Canada)

13:30

Workshop. openDendro: Advanced Open-source Tools for Dendrochronology and Paleoenvironmental Reconstruction

4 hours, 13:30 - 17:30

Coeur des Sciences, Sherbrooke Building, UQAM - Classroom (SH-3420)

Workshop

Andy Bunn, Robertson College (Instructor)

Free, in person and online

Tuesday 28 June, 2022

Time Zone: (GMT-05:00) Eastern Time (US & Canada)

8:45

Dr. Florence Hawley Ellis Lecture (Keynote presentation)

30 minutes, 8:45 - 9:15

Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)

Keynote

Justine Ngoma, The Copperbelt University (Keynote speaker)

Africa is faced with a number of challenges including climate change and ecological disturbance due to various anthropogenic activities. These p...

9:20

Evaluating Tropical Cyclone Impacts and Climate Response of a Maritime Forest (1737-2018), Montauk, N.Y.

15 minutes, 9:20 - 9:35

Part of: General Session (Dendroclimatology, PT1)

Coeur des Sciences, Sherbrooke Building, UQAM - Classroom (SH-3420)

Talk

Nicole Davi, William Paterson University & Lamont-Doherty Earth Observatory of Columbia University (Speaker)

Maritime forests are extremely important for coastal protection as they buffer storm surge and wind, conserve nutrients, and store groundwater. ...

Tree-ring data reject the leading edge-trailing edge hypothesis for species range change

15 minutes, 9:20 - 9:35

Part of: General Session (Dendroecology, PT1)

Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)

Talk

Margaret Evans, University of Arizona (Speaker)

Climate change poses an existential threat to trees, given our understanding of the importance of climate in shaping their geographic distributi...

10:05

Volcanic Cooling Events: Impacts on Climate and Indigenous Peoples in Northwestern North America

15 minutes, 10:05 - 10:20

Part of: General Session (Dendroclimatology, PT1)

Coeur des Sciences, Sherbrooke Building, UQAM - Classroom (SH-3420)

Talk

Caroline Leland, William Paterson University (Speaker)

Evidence of volcanic cooling and its human impacts has been described for various regions of the globe over the past several centuries to millen...

10:20

Using dendrochronological data to characterize the spatio-temporal structure of climate variablity

15 minutes, 10:20 - 10:35

Part of: General Session (Dendroclimatology, PT1)

Coeur des Sciences, Sherbrooke Building, UQAM - Classroom (SH-3420)

Talk

Raphaël Hébert, Alfred-Wegener-Institute (Speaker)

The spatial scale of climate fluctuations, or effective spatial degrees of freedom (ESDOF), depends on the timescale and the forcing: while loca...

11:00

Toward a Historiography of Dendrochronology

15 minutes, 11:00 - 11:15

Part of: General Session (New perspectives and developments)

Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)

Talk

James Capshew, Indiana University (Speaker)

"Emerging in the early 20th century, the scientific study of tree-rings has a rich but under-cultivated history. This project reviews the histor...

11:30

To discard or not to discard: On cross-dating ecological tree-ring collections

15 minutes, 11:30 - 11:45

Part of: General Session (New perspectives and developments)

Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)

Talk

Neil Pederson, Harvard Forest (Speaker)

Tree-ring research has given generations of scientists a long memory of what is acceptable for a tree to be included for data analysis. The esta...

11:45

Topography mediates growth and drought sensitivity in California valley oak (Quercus lobata)

15 minutes, 11:45 - 12:00

Part of: General Session (Dendroclimatology, PT2)

Coeur des Sciences, Sherbrooke Building, UQAM - Classroom (SH-3420)

Talk

Matthew Trumper, University of Minnesota (Speaker)

Complex topography can facilitate climatic and hydrologic microenvironments that buffer plants against climate change and extreme drought. Howev...

High-resolution wood surface imaging for dendrochronology: towards the development of unbiased reflectance timeseries

15 minutes, 11:45 - 12:00

Part of: General Session (New perspectives and developments)

Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)

Talk

Milos Rydval, Czech University of Life Sciences Prague (Speaker)

Dendroclimatic reconstructions play a key role in contextualizing recent climate change by improving our understanding of past climate variabili...

12:00

Tree-rings as a natural encyclopedia: itinerant and interactive exhibition as an educational tool for students

15 minutes, 12:00 - 12:15

Part of: General Session (New perspectives and developments)

Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)

Talk

Tomás Muñoz-Salazar, Universidad Austral de Chile (Speaker)

In this work we show the application of dendrochronology as an educational resource for schoolchildren and as a mean to disseminate science to s...

800 years of summer European-North Atlantic jet stream variability and its impact on climate extremes and human systems

15 minutes, 12:00 - 12:15

Part of: General Session (Dendroclimatology, PT2)

Coeur des Sciences, Sherbrooke Building, UQAM - Classroom (SH-3420)

Talk

Valerie Trouet, University of Arizona (Speaker)

Climate extremes are driven by a combination of thermodynamical and dynamical factors. In Europe, the primary dynamical driver of summer climate...

13:30

Temperature is not the main driver of vessel diameter(when standardized by height) across climatic gradients in Viburnum

15 minutes, 13:30 - 13:45

Part of: General Session (Ecophysiology)

Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)

Talk

Ali Segovia-Rivas, Johannes Gutenberg University Mainz (Speaker)

It is generally assumed that tree-rings, and their vessel diameters, are wider in warmer and wetter years. To maintain constant conductance per ...

Proxy and historical evidence for rainfall extremes in the Amazon and northeastern Brazil, 1790-1900

15 minutes, 13:30 - 13:45

Part of: General Session (Dendroclimatology, PT3)

Coeur des Sciences, Sherbrooke Building, UQAM - Classroom (SH-3420)

Talk

Daniela Granato, University of Arkansas (Speaker)

Historical accounts in the Brazilian Digital Library provide independent support for most of the tree-ring reconstructed wet season rainfall ext...

13:45

Two centuries of hydroclimatic variability reconstructed over the Amazonian Andes of Peru

15 minutes, 13:45 - 14:00

Part of: General Session (Dendroclimatology, PT3)

Coeur des Sciences, Sherbrooke Building, UQAM - Classroom (SH-3420)

Talk

María Eugenia Ferrero, IANIGLA-CONICET Argentina (Speaker)

Half of the tributaries of the Amazon River originate in the tropical Andes; however, it is difficult to assess hydroclimatic conditions due to ...

14:00

Cross-continental hydroclimate proxies: Tree-rings in Central Chile reconstruct historical streamflow in Southeastern So

15 minutes, 14:00 - 14:15

Part of: General Session (Dendroclimatology, PT3)

Coeur des Sciences, Sherbrooke Building, UQAM - Classroom (SH-3420)

Talk

Christine Lucas, Universidad de la Republica - Uruguay (Speaker)

Regional teleconnections permit cross-continental modeling of hydroclimate throughout the world. Tree-rings are a good hydroclimatic proxy used ...

14:15

Estimating Uncertainties in the Multidecadal Variability of Colorado River Flows from Treering Data

15 minutes, 14:15 - 14:30

Part of: General Session (Dendroclimatology, PT3)

Coeur des Sciences, Sherbrooke Building, UQAM - Classroom (SH-3420)

Talk

George Rhee, University of Nevada Las Vegas (Speaker)

The Colorado river supplies water to forty million people. The river system in crisis due to; an ongoing twenty year drought, a historical overa...

14:30

Effects of climate on the radial growth of mixed stands of Nothofagus nervosa and N. obliqua in Patagonia

15 minutes, 14:30 - 14:45

Part of: General Session (Dendroclimatology, PT3)

Coeur des Sciences, Sherbrooke Building, UQAM - Classroom (SH-3420)

Talk

Ze'ev Gedalof, University of Guelph (Speaker)

Climate models for North Patagonia in Argentina project dryer conditions, due to a decrease in mean precipitation combined with an increase in m...

14:45

Reconstructing Late Pleistocene Atmospheric Radiocarbon using Subfossil New Zealand Kauri (Agathis australis)

15 minutes, 14:45 - 15:00

Part of: General Session (Dendroclimatology, PT3)

Coeur des Sciences, Sherbrooke Building, UQAM - Classroom (SH-3420)

Talk

Priyadarshini Parsons O'Brien, University of New South Wales (Speaker)

Annually resolved subfossil kauri (Agathis australis) trees, recovered from bogs in northern New Zealand, provide unique insights into past clim...

16:30

Frontiers in fire ecology exist in tree-ring fire scar reconstructions of the southeastern U.S.

15 minutes, 16:30 - 16:45

Part of: General Session (Dendroecology, PT2)

Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)

Talk

Michael Stambaugh, University of Missouri (Speaker)

The most frequent fire regimes in the world exist in environments that balance maximum fuel production and maximum fire occurrence potential. Of...

Wednesday 29 June, 2022

Time Zone: (GMT-05:00) Eastern Time (US & Canada)

11:00

General Session (Dendrogeosystems)

1 hour 15 minutes, 11:00 - 12:15

Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)

Talk

Scott St. George, University of Minnesota (Speaker)

Troy Nixon, Lamont-Doherty Earth Observatory (Speaker)

Dave Sauchyn, University of Regina (Speaker)

Stefan Klesse, Swiss Federal Research Institute WSL (Speaker)

Ignacio Hermoso de Mendoza, Geotop (Chair)

Feng Wang, Institut national de la recherche scientifique (Chair)

11:15

Drought and Inca rituals in the summits of the Andes of Atacama

15 minutes, 11:15 - 11:30

Part of: Symposium 7 (PT 2). Historical Timbers and Wooden Artifacts as Archives: New Glimpses On Trees, Ecology, and People

Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)

Talk

Duncan Christie, Universidad Austral de Chile (Speaker)

Fluctuations in water resources is one of the main factors modulating ecosystem dynamics, human population changes and culture in semiarid regio...

12:30

A clarion call from a fading record-- tree-rings, fire-scars, and restoration implications for central Appalachian red pine (Pinus resinosa Ait.) forest communities

1 hour 30 minutes, 12:30 - 14:00

Part of: Poster Session

Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)

Poster

Joseph Marschall, Center for Tree-Ring Science, University of Missouri (Speaker)

Fire-dependent red ...

An assessment of annularity in Sand live oak (Quercus virginiana) and Turkey oak (Quercus laevis) in central Florida

1 hour 30 minutes, 12:30 - 14:00

Part of: Poster Session

Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)

Poster

Ze'ev Gedalof, University of Guelph (Speaker)

The Tiger Creek Preserve in central Florida has one of the highest concentrations of threatened and endangered plants and animals in the United ...

Tree rings and the colorful history of Beaver Island, Michigan

1 hour 30 minutes, 12:30 - 14:00

Part of: Poster Session

Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)

Poster

Matthew Bekker, Brigham Young University (Speaker)

Beaver Island, Michigan was occupied by a religious sect led by James J. Strang from 1848-1856. Strang was crowned king of the group, but assass...

Influence of Humans and Climatic Variability on Historic Wildfire Dynamics in Jasper National Park, Canada

1 hour 30 minutes, 12:30 - 14:00

Part of: Poster Session

Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)

Poster

Ze'ev Gedalof, University of Guelph (Speaker)

We reconstructed wildfire history from fire-scars to detect the influences of climatic variability and land-use change on wildfire dynamics in t...

Reconstructing Maximum flows using tree rings in Semiarid-Mediterranean climate transition of Chile

1 hour 30 minutes, 12:30 - 14:00

Part of: Poster Session

Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)

Poster

Ariel Muñoz, Pontificia Universidad Católica de Valparaíso (Speaker)

Despite their potential benefits, streamflow reconstructions from tree-rings have not been widely used in water systems analysis because the flo...

Compilation of recent oak tree-ring chronology for southwestern Ukraine

1 hour 30 minutes, 12:30 - 14:00

Part of: Poster Session

Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)

Poster

Irena Sochová, Mendel University in Brno (Speaker)

Western Ukraine are largely forested, especially Transcarpatia with more than 50% of the land covered by forests. Despite this fact, Transcarpat...

Introducing the North America Paleo-temperature Atlas, a Spatial Field Reconstruction of Warm Season Air Temperature

1 hour 30 minutes, 12:30 - 14:00

Part of: Poster Session

Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)

Poster

Karen Heeter, University of Idaho (Speaker)

Spatially-resolved climate field reconstructions are ideal for analyzing spatial anomaly patterns and characterizing regional-scale trends resul...

Re-evaluating Divergence in Western Canada

1 hour 30 minutes, 12:30 - 14:00

Part of: Poster Session

Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)

Poster

Emily Reid, University of St Andrews (Speaker)

The classic definition of the so-called “divergence problem” is a decoupling of temperature sensitive tree-ring chronologies from the instrument...

Thursday 30 June, 2022

Time Zone: (GMT-05:00) Eastern Time (US & Canada)

8:45

A tipping point for tropical tree longevity (Keynote presentation)

30 minutes, 8:45 - 9:15

Coeur des Sciences, Sherbrooke Building, UQAM - Amphitheatre (SH-2800)

Keynote

Giuliano Locosselli, Institute of Environmental Research (Keynote speaker)

How old are tropical trees? This fundamental question has long driven the curiosity of laymen and scientists. But only recently, a great number ...

9:20

General Session (Proxies and models)

1 hour 30 minutes, 9:20 - 10:50

Coeur des Sciences, Sherbrooke Building, UQAM - Salle polyvalente (SH-4800)

Talk

Jan Esper, Johannes Gutenberg University Mainz (Speaker)

Feng Wang, Institut national de la recherche scientifique (Speaker)

Jeanne Rezsöhazy, Université catholique de Louvain (Speaker)

Max Torbenson, Johannes Gutenberg University Mainz (Speaker)

Arian Correa-Diaz, Instituto Nacional de Investigaciones Forestales Agricolas y Pecuarias (Speaker)

Guillermo Gea-Izquierdo, INIA-CSIC (Chair)

Camille Lepage, Geotop (Chair)