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Incorporating arctic grazers to Earth-System models

reindeer in northern Sweden
Symposium
Recent evidence demonstrates that herbivores are an important component of ecosystem carbon cycling – to the extent that their regional effects on carbon sequestration are comparable to the anthropogenic greenhouse gas emissions of different countries. Today, both environmental and societal changes occur at faster rate than ever, with the potential to exert unforeseen effects on herbivore populations and their grazing patterns and further ecosystems and carbon dynamics. An urgent challenge for today's scientists is thus, to foresee these changes. Yet, the site- dependency and complexity of herbivore impacts have resulted in that only a few efforts on incorporating herbivore effects to Earth-system models exist.

This two-day workshop aim to bring together researchers with the common interest in incorporating grazing patterns to Earth-System models. The overall objective of the workshop is to share knowledge among grazer researchers and model developers within and around BECC and MERGE, inform on the ongoing research, and identify current knowns and unknowns. Ultimately, the workshop aids planning future field studies to serve the needs of models and result in the development of mechanistic model with a stronger empirical foundation.

We have invited three external experts to join the workshop.
Professor Howard E. Epstein (University of Virginia) is an ecosystem ecologist, specialised on detecting vegetation dynamics in the arctic tundra of North America and Russia. Among other work, he has developed a plant community and ecosystem model ArcVeg, with efforts tp incorporate grazers to it.
Associate Professor Johan Olofsson (Umeå University) is plant ecologist with vast experience on reindeer impacts on vegetation patterns, particularly in northern Fennoscandia, and will brief the workshop on current knowns on grazer impacts on Arctic vegetation patterns.
Professor Bruce Forbes (University of Lapland) has a background in applied ecology and geography in northern high latitudes, with special emphasis on depicting trends in reindeer populations and their consequences for local livelihoods.

Limited amount of space and places – so please register beforehand, latest 27th of January.
After the 24th of January, you will be approached by the organizers to fill a few pre-exercises for the workshop that will not take more than half-an-hour to fill.

Program

Monday, 24th of February

10.00 – 11.00    Registration and morning coffee, served at Geocentrum II lobby

11.00 – 12.30    Introduction to workshop goals and brief on Arctic grazers
                             Plenary: Current understanding of grazer effects on vegetation across the Arctic (Johan Olofsson, Umeå University)

12.30 – 13.30    Lunch at LUX

13.30 – 15.00    Plenary: Recap of current research on incorporating arctic grazers to dynamic vegetation models
                                                                                                                                               
(Paul Miller & Adrian Gustafsson)
                              Plenary: Grazing in the ArcVeg model: lessons learned and how to develop from these?
                                                                                                                                   (Howard E. Epstein, University of Virginia)

                              Plenary: The megafauna library (Wolfgang Traylor, Senckenberg Biodiversity and Climate Research Centre)

15.00 – 15.30 Coffee break

15.30 – 17.00 Workshop part 1. The knowns of grazing-induced feedback on Artic vegatations and ecosystems.

19.00 Workshop dinner at The Herbivore
 

Tuesday, 25th of February

9.00 – 10.30 Workshop part 2: The unknowns of grazing-induced feedback on Artic vegatations and ecosystems.

10.30 – 11.00 Morning coffee + Semla

11.00 – 12.30 Presentations of existing field settings of participants
                          Potential of existing settings and natural experiments to identified knowledge gaps.

12.30 – 13.30 Lunch at LUX

13.30 – 15.00 Guidelines for datacollection
                          How could the previously presented settings be used, and what should be collected for
                          model input, validation and calibration?

15.00 – 15.30 Coffee break (fruits)

15.30 – 16.00 Workshop wrap-up

Limited amount of space and places – so please register beforehand, latest 27th of January.

 

Organizers: Henni Ylänne, Adrian Gustafson, Dan Metcalfe, Robert Björk and Paul Miller

Time: 
24 February 2020 10:00 to 25 February 2020 16:00
Location: 
Atmosfären, second floor Geocentrum II, Sölvegatan 12, Lund
Contact: 
henni.ylanne [at] cec.lu.se

About the event

Time: 
24 February 2020 10:00 to 25 February 2020 16:00
Location: 
Atmosfären, second floor Geocentrum II, Sölvegatan 12, Lund
Contact: 
henni.ylanne [at] cec.lu.se