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Monday 27 June, 2022

Time Zone: (GMT-05:00) Eastern Time (US & Canada)
8:30
8:30 - 12:30 | 4 hours

MAIDENiso is a numerical process-based model that allows researchers to simulate the growth of a virtual tree. Using daily meteorological data, the model simulates the physical and physiological processes taking place in the tree and its environment, to produce daily and yearly outputs comparable to dendrological observations. The model has been adapted and used successfully in boreal regions in North America. In an inverse mode, tree-ring obs...

8:30 - 12:30 | 4 hours

Blue Intensity (BI) is a cost-effective analytical method for measuring relative wood density in the rings of conifer tree species. Since early concept papers in the 1990s/2000s, there has been a recent explosion in the application of this method for both dendroclimatology and historical dating as well as other dendro-disciplines. The beauty of BI is that the analytical costs, mainly related to the cost of a h...

12:15
12:15 - 13:30 | 1 hour 15 minutes
13:30
13:30 - 17:30 | 4 hours

Free, in person and onlineWe will hold a practical, skills-based workshop introducing openDendro -- an open-source framework of the base analytic software tools used in dendrochronology in both the R and Python programming languages. openDendro is a new unified set of tree-ring analysis tools in open-source environments that provides the necessary baseline for dendro...

13:30 - 17:30 | 4 hours

Blue Intensity (BI) is a cost-effective analytical method for measuring relative wood density in the rings of conifer tree species. Since early concept papers in the 1990s/2000s, there has been a recent explosion in the application of this method for both dendroclimatology and historical dating as well as other dendro-disciplines. The beauty of BI is that the analytical costs, mainly related to the cost of a h...

13:30 - 17:00 | 3 hours 30 minutes

Free, in person and onlineThe stable isotopic compositions of carbon and oxygen (d13C and d18O) measured in tree rings are valuable proxies for reconstructing paleoclimate and are increasingly used as paleophysiological proxies. Applying these proxies in ecophysiology and paleoclimate can be challenging as they rely on complex process-based models and poorly constrained input data. In recent years, h...

17:30
17:30 - 20:30 | 3 hours

Meet colleagues and friends in an informal settingFree drinks for all!  

Tuesday 28 June, 2022

Time Zone: (GMT-05:00) Eastern Time (US & Canada)
8:45
8:45 - 9:15 | 30 minutes

Africa is faced with a number of challenges including climate change and ecological disturbance due to various anthropogenic activities. These problems adversely affect the forests and also ecosystem services. My appreciation for the forests motivated me to pursure my undergraduate studies in Forestry. I first applied dendrochronology during my PhD research which focused on understanding the climate change vulnerability of the Zambezi teak forests in Zambia. However, lack of research facil...

9:20
9:20 - 10:35 | 1 hour 15 minutes
Symposium 1

Tree-ring time series provide long-term, annually resolved information on the growth of individual trees. However, public tree-ring archives contain a considerable portion of data collected from trees that have been selected with specific research questions in mind (e.g., for climate reconstruction).  This makes these archives a biased representation of the sensitivity of forest ecosystems to ongoing climate variation (e.g. temperature, precipitation), including non-stationarity (i.e....

10:35
10:35 - 11:00 | 25 minutes
11:00
11:00 - 12:15 | 1 hour 15 minutes
New perspectives and methodsMethodological Developments
11:00 - 12:15 | 1 hour 15 minutes
Symposium 1

Tree-ring time series provide long-term, annually resolved information on the growth of individual trees. However, public tree-ring archives contain a considerable portion of data collected from trees that have been selected with specific research questions in mind (e.g., for climate reconstruction).  This makes these archives a biased representation of the sensitivity of forest ecosystems to ongoing climate variation (e.g. temperature, precipitation), including non-stationarity (i.e....

12:15
12:15 - 13:30 | 1 hour 15 minutes
13:30
13:30 - 15:00 | 1 hour 30 minutes

As of 2020, 56% of the world’s population live in urban areas. These individuals benefit from numerous ecosystem services provided by urban forests, including urban heat island mitigation, energy use reduction, stormwater interception, wildlife and pollinator habitat provision, air pollution removal, and carbon sequestration. Urban greenspaces are also often the most accessible avenue for exposure to the natural environment, providing additional aesthetic, recreati...

Wednesday 29 June, 2022

Time Zone: (GMT-05:00) Eastern Time (US & Canada)
8:45
8:45 - 9:15 | 30 minutes

Dendrochronology is considered one the most precise of all the scientific dating techniques. However, it requires long sequences of tree rings and a master record for both the species and region in question. At the University of Groningen, we have been pioneering a new approach to dating that combines the precision of dendrochronology with the versatility of radiocarbon dating. It relies on the detection of spikes in the annual radiocarbon record, thought to b...

9:20
9:20 - 10:35 | 1 hour 15 minutes

Current and projected changes in climate are estimated to be from 10 to 100 times faster than the natural adaptive capacity of trees whose generation times are long. As extreme climatic events are becoming more frequent and exert a strong selection pressure on tree populations, there is an urgent need to better characterize the genetic variability involved in the response of trees to climate. There is currently a lack of knowledge on the role of genetic variability in tolerance to climatic...

9:20 - 10:35 | 1 hour 15 minutes

Information garnered from historical timbers and wooden artifacts (e.g. houses, barns, ships) can greatly enhance our understanding of human, ecological, and climate history, especially in regions where few old-growth forests and trees remain, tree longevity is relatively short (less than 300-400 years), and environmental conditions break down wood rather quickly, like in mesic to wet regions. Over the last decade plus, the application of tree-ring techniques on wo...

10:35
10:35 - 11:00 | 25 minutes
11:00
11:00 - 12:15 | 1 hour 15 minutes
FloodsPaleohydrologyExtremesGeomorphology
11:00 - 12:15 | 1 hour 15 minutes

Information garnered from historical timbers and wooden artifacts (e.g. houses, barns, ships) can greatly enhance our understanding of human, ecological, and climate history, especially in regions where few old-growth forests and trees remain, tree longevity is relatively short (less than 300-400 years), and environmental conditions break down wood rather quickly, like in mesic to wet regions Over the last decade plus, the application of tree-ring techniques on woo...

12:30
12:30 - 14:30 | 2 hours

Presentation of all Ameridendro2022 posters.FREE LUNCH FOR ALL ATTENDEES!

15:15
15:15 - 17:15 | 2 hours

Session reescheduled from June 28th to June 29th

15:15 - 17:15 | 2 hours

Session reescheduled from June 28th to June 29th

18:30
18:30 - 21:00 | 2 hours 30 minutes

This is a mandatory (!)  .... and FREE (!!) cocktail & award ceremony (!!!)(in replacement of the Banquet formula)->->->->->->->->->->->->->->->->->->After a great summer day of scientific and urban discoveries in our beloved MTL, we wish to bring together all the AmeriDendro community in one place and congratulate the TRS awardees for their remarkable achievements!  -Bonsinsegna award-Fr...

Thursday 30 June, 2022

Time Zone: (GMT-05:00) Eastern Time (US & Canada)
8:45
8:45 - 9:15 | 30 minutes

How old are tropical trees? This fundamental question has long driven the curiosity of laymen and scientists. But only recently, a great number of studies conducted by many brave dendrochronologists resulted in a significant tree-ring-based knowledge that allows us to start accurately estimating tree ages across the globe. As science goes, not only knowing the longevity of tropical trees is essential to understanding forest dynamics and its role in biogeochemical cycles, but one must also ...

9:20
9:20 - 10:50 | 1 hour 30 minutes
Proxy modellingData-model fusion
9:20 - 10:50 | 1 hour 30 minutes

Dendrochronological archives in the tropics of the Americas have been under-studied for a long time. Some of the challenges include the Identification of tree-ring boundaries in certain tree species, absence of winter dormancy associated to low temperatures in most of the cases, and logistic difficulties of fieldwork in remote sites. However, part of the slow progress is also related to the fact that historically much less resources have been inv...

10:35
10:35 - 11:00 | 25 minutes
11:00
11:00 - 12:15 | 1 hour 15 minutes

In their book chapter in 2011 Gagen et al. (2011) highlighted the need for stable isotope dendroclimatology to move beyond studies that simply demonstrate ‘potential’. This symposium, more than a decade since this publication, will focus on dendrogeochemical studies that demonstrate that the field has moved beyond studies focused on ‘potential’. In particular, this session will strive to identify compelling new insights into unique aspect...

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

Dendrochronological archives in the tropics of the Americas have been under-studied for a long time. Some of the challenges include the Identification of tree-ring boundaries in certain tree species, absence of winter dormancy associated to low temperatures in most of the cases, and logistic difficulties of fieldwork in remote sites. However, part of the slow progress is also related to the fact that historically much less resources have been inv...

12:15
12:15 - 13:25 | 1 hour 10 minutes
13:25
13:25 - 14:00 | 35 minutes
FireClimateCommon EraBoreal

A gap of millennial tree-ring data suitable for dendroclimatology has long been evident in the North American boreal forest. In my talk, I will describe the adaptive approach we have developed to build and improve a data network for millennial dendroclimatology in the eastern Canadian taiga. Recurrence of stand replacing wildfires is the most important constrain to the elaboration of long tree ring chronologies, which can only be developed away from regions ...

14:05
14:05 - 15:50 | 1 hour 45 minutes

The interpretation of stable isotopes in a dendroecological framework can provide powerful insights into how trees adjust physiologically in response to the environment. This symposium aims to bring together researchers who use stable isotopes in tree rings to address ecophysiological responses to environmental changes from intra-annual to multi-decadal resolution. We hope this symposium will enable fruitful discussions and new ideas a...

14:05 - 15:35 | 1 hour 30 minutes
Wood formationTree phenologyWood anatomy
15:50
15:50 - 17:20 | 1 hour 30 minutes

Allies have emerged as key enablers of diversity and inclusivity initiatives in the workplace, in professional associations, and in everyday life. But what is an ally? What skills are required to be an effective ally? How do we hold ourselves and our community members accountable for being effective allies? This symposium will provide a deeper understanding of what it means to be an ally and the skills to help advance allyship as individuals and as a community. Fur...

17:40
17:40 - 19:30 | 1 hour 50 minutes
OutisdeFun
Outdoor activity

(by bus, max 92 people)Designed for visitors and newcomers, the tour is based on the pleasure...

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