Aeolian flux of microorganisms in the McMurdo Dry Valleys, Antarctica

Poster Number: 
Presenter/Primary Author: 
Marie Sabacka

The McMurdo Dry Valleys in Antarctica (MCM) forms one of the most extreme deserts on Earth. It consists of a mosaic of permanently ice-covered lakes, ephemeral streams, exposed soils, and glaciers. Microorganisms are the only life forms occupying these landscape units. Given the relatively low and seasonal growth rates of these organisms, we contend that the distribution of microorganisms within this environment is controlled by physical factors.

Autonomous robotic surveys of Adélie penguin foraging “hot spots” offshore of Palmer Station, Antarctica

Poster Number: 
Presenter/Primary Author: 
Alex Kahl

The distribution of Adélie penguins along the West Antarctic Peninsula (WAP) is spatially heterogeneous. Large Adélie colonies occur spatially in regions characterized by deep seafloor canyons. Often associated with these regions is persistent upwelling of warm, nutrient-rich UCDW, which is hypothesized to provide a predictable food resource close to the colonies such that they can be accessed by the penguins given their limited foraging range.

Going Underground: The role of mycorrhizal fungi in promoting or inhibiting post-fire seedling establishment across treeline in Alaska

Poster Number: 
Presenter/Primary Author: 
Rebecca Hewitt

Soil microbes are key drivers of ecosystem processes, yet their role in regulating landscape-scale vegetation change is not known. Comprehensive studies of treeline position have noted that ectomycorrhizal fungi may be an important factor delineating the boundary between forest and tundra. Yet, these critical plant-fungal symbioses are sensitive to wildfires. Fire is the primary landscape-scale disturbance in the boreal forest and increasingly important in tundra.

Contest Result: 
1st Honorable Mention

LTER - National Biological Information Infrastructure

Poster Number: 
Presenter/Primary Author: 
Inigo San Gil

The National Biological Information Infrastructure (NBII) entered in 2004 in a five year cooperative agreement with LTER. The NBII-LTER cooperative agreement is the result of efforts championed by W. Michener dating back to 2000. The overarching goal is the interoperability of both networks: Sharing the wealth on information on ecological and biological resources, and offer those to educators,, scientists, lawmakers and the public in general.

Coordinating Phenology Monitoring and Research Across the LTER Network

Mark Losleben

Phenology is a critical aspect of nearly all ecological phenomena and processes. We propose a brain storming workgroup to take the next step in coordinating phenology monitoring and research across the LTER Network. The inspiration for this working group proposal has its roots in the 2006 ASM working group, the 2007 Sevilleta Workshop and the 2007 AGU Fall Meeting (see working group material). The paper by Henebry et al. 2007, "A White Paper on Phenology across LTER",  provides overview, background, and potential starting points for this session.

Session Info

Working Group Session 3

Tue, 09/15/2009 - 10:00am - 12:00pm
Longs Peak Keyhole
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