Dear colleagues,

this week’s Biology Thursday seminar, 12:15 on Thu 6th of May (zoom link below) will be given by Professor Torben Røjle Christensen, Department of Bioscience, Arctic Research Centre:

A long-term monitoring perspective on ecosystem-atmosphere interactions in the Arctic

Abstract:

The exchanges of carbon dioxide (CO2) and methane (CH4) between arctic ecosystems and the atmosphere are sizeable and may if they change alter the further development of climate warming. These fluxes take place between the atmospheric background concentration of these trace gases and a very large reservoir of organic carbon stored in arctic soils and sediments. The stored carbon amounts to more than twice the current global atmospheric burden of CO2. Therefore, accurate measurements of the fluxes and how they vary temporally and spatially is key to understanding possible ecosystem impacts on the atmospheric concentrations and hence climate.

This presentation will detail the current state of the global CO2 and CH4 budget and show examples of methods applied in quantifying the arctic trace gas flux components. The presentation will discuss data on how extreme events relating to ecosystem functioning (larvae outbreaks and extreme precipitation) can impact carbon fluxes.

Prof. Christensen is also the Scientific Leader of  Greenland Ecosystem Monitoring project as well as the  Scientific Leader Zackenberg Research Station, so this is a talk from the very top of Arctic research – don’t miss it! More on his work at: https://pure.au.dk/portal/en/persons/torben-roejle-christensen(b6b7be53-7869-48a3-875e-76e6e85fc5a5).html

See you online on Thursday,

Heikki

Heikki Helanterä is inviting you to a scheduled Zoom meeting.

Topic: Biology Thursday seminar

Time: This is a recurring meeting Meet anytime

Join Zoom Meeting

https://oulu.zoom.us/j/62917763539?pwd=WENZRy9Bb3NlSzlyeVlVamJ4RHR5Zz09

Meeting ID: 629 1776 3539

Passcode: 166151

One tap mobile

+496938079883,,62917763539# Germany

+496950502596,,62917763539# Germany

Dial by your location

        +49 69 3807 9883 Germany

        +49 695 050 2596 Germany

        +49 69 7104 9922 Germany

        +49 30 5679 5800 Germany

Meeting ID: 629 1776 3539

Find your local number: https://oulu.zoom.us/u/ccTmAGzcv

Join by SIP

62917763539@109.105.112.236

62917763539@109.105.112.235

Join by H.323

109.105.112.236

109.105.112.235

Meeting ID: 629 1776 3539

Passcode: 166151

===============================================

Heikki Helanterä

Associate Professor (tenure track)

Ekologian ja genetiikan tutkimusyksikkö / Ecology and Genetics Research Unit

Oulun Yliopisto / University of Oulu / Finland

heikki.helantera@oulu.fi
+358-40-7507 334