Animals and the zoogeochemistry of the carbon cycle

Animals play a significant role in shaping landscape scale carbon exchange and storage, according to new research published in Science by Dr. Goetz and NAU colleague Dr. Chris Doughty.  Goetz and Doughty used remote sensing to analyze animal movements and how they impact the global carbon cycle.  Their research highlights the importance of including animal feedbacks in discussions of climate change mitigation.

Read more about this research here, and read the full article here.

 

An icy world defrosted: NASA targets Arctic permafrost thaw

Tipsy trees in a “drunken forest” — thawing permafrost and destabilized soil cause the trees to lean

Credit: Idrose/flickr

Scott Goetz and NAU Center for Ecosystem Science and Society (ECOSS) researcher Ted Schuur were recently featured in a Science Magazine article highlighting permafrost research conducted under NASA’s ABoVE project.  Schuur’s experimental field studies measure how much carbon is released to the atmosphere due to permafrost thaw.  This work has now gained an airborne ally.  NASA aircraft capable of mapping topography and emitting radar pulses that penetrate the ground surface and measure depth to permafrost are now flying missions in conjunction with field-based permafrost studies.  These flights will help link field based measurements to remote sensing data and scale these fine scale measurements up to larger spatial scales.

Read more about this project here.  Read more about “drunken trees” here.

NAU scientists publish first estimate of carbon emissions from 2014 mega-fires in Canada’s boreal forests

Scott Goetz recently collaborated with researchers Xanthe Walker, Michelle Mack and Ted Schuur from NAU’s Center for Ecosystem Science and Society (ECOSS) on a study estimating carbon emissions from an unprecedentedly large fire in Canada’s Northwest Territories (NWT). Accurate predictions of carbon emissions are necessary to predict future climate feedbacks.  This study examined the major sources of heterogeneity that impact carbon emissions at different scales.  This increased understanding can be used to improve high resolution modeling of carbon emissions across understudied areas.

Read more about this study here, and read the full article in Global Change Biology here.

NAU scientists lead DoD project to assess environmental impact of changing climate on boreal forests

Credit US Forest Service

Scott Goetz, along with NAU Center for Ecosystem Science and Society (ECOSS) professor Michelle Mack, are leading a new Department of Defense (DoD) funded project to to assess the resiliency and vulnerability of boreal forest on DoD lands across central Alaska.  This project is just one example of many collaborations between the GEODE lab and ECOSS.

Read more about this project here.

New paper in Nature: Plant functional trait change across a warming tundra biome

Scott Goetz and Logan Berner are co-authors on “Plant functional trait change across a warming tundra biome,” a paper out this year in Nature.

Goetz and Berner collaborated with scientists from institutions across the world to assess climate impacts on plant functional traits across the tundra biome and three decades of climate warming.

Read more via NAU’s In the Spotlight and read the full paper here.

Total change in temperature (b) and soil moisture (c) over the period 1989-2015. Predicted changes in height (d) and leaf nitrogen (e) over this same period.