2015 LTER ASM - Does continuous ecosystem stress lead to vulnerability? (Monday)

Directionality, Magnitude, and Duration of Precipitation Extremes Within a Mesic Grassland

afelton — Wed, 12 Aug 2015 18:18:46 +0000

Poster Number:

290

Presenter/Primary Author:

Andrew Felton

Co-Authors:

Melinda D. Smith

Locally and globally, climate extremes are expected to become an increasingly important determinant of terrestrial ecosystem structure and functioning.

Student Poster Competition:

Yes

Recent increase in the release of carbon dioxide from arctic tundra ecosystems in Alaska

eeuskirchen — Thu, 06 Aug 2015 19:22:21 +0000

Poster Number:

282

Presenter/Primary Author:

Eugenie Euskirchen

Co-Authors:

M. Syndonia Bret-Harte

Co-Authors:

Gus R. Shaver

Co-Authors:

Colin W. Edgar

Co-Authors:

Vladimir E. Romanovsky

Releases of the greenhouse gases carbon dioxide (CO₂) and methane (CH₄) from thawing permafrost are expected to be among the largest feedbacks to climate from arctic ecosystem

Key drought tolerant traits of several dominant plant species in a tallgrass prairie

rgriffin-nolan — Sat, 01 Aug 2015 01:24:58 +0000

Poster Number:

275

Presenter/Primary Author:

Robert Griffin-Nolan

Co-Authors:

Alan Knapp

Co-Authors:

Troy Ocheltree

Co-Authors:

Melinda Smith

Climate change models forecast an increase in drought severity and frequency globally. Grassland ecosystems, which constitute 40% of Earth’s terrestrial surface and provide valuable services s

Student Poster Competition:

Yes

Effect of temperature on the Antarctic nematode Scottnema lindsayae

mknox — Fri, 31 Jul 2015 22:15:27 +0000

Poster Number:

264

Presenter/Primary Author:

Matt Knox

Co-Authors:

Wall, Diana

Co-Authors:

Andriuzzi, Walter

Scottnema lindsayae is the most abundant land animal in Antarctica, and is critical to McMurdo Dry Valley ecosystem function. Assessments of S.

Historical precipitation regime and drying-rewetting frequency alters soil microbial community dynamics in a grassland ecosystem

lzeglin — Fri, 31 Jul 2015 21:34:14 +0000

Poster Number:

261

Presenter/Primary Author:

Lydia Zeglin

Co-Authors:

Allison Veach

Climate change scenarios predict the North American Great Plains to experience decreases in annual average precipitation and fewer but more intense storms.

Interactions between chronic and extreme climate change: a belowground perspective

islette — Fri, 31 Jul 2015 21:23:21 +0000

Poster Number:

259

Presenter/Primary Author:

Ingrid Slette

Co-Authors:

Allyson Schnell

Co-Authors:

Alan Knapp

Climate change forecasts predict both gradual chronic changes in temperature and precipitation and more extreme discre

Student Poster Competition:

Yes

Habitat Fragmentation Alters Arctic Grayling Movement and Vital Rates

hgolden — Fri, 31 Jul 2015 17:42:01 +0000

Poster Number:

226

Presenter/Primary Author:

Heidi Golden

Co-Authors:

Cameron MacKenzie

Co-Authors:

Linda Deegan

Co-Authors:

Mark Urban

Location of specific habitats for reproduction, feeding and overwintering often necessitates seasonal migration for fish in order to fulfill life history requirements.

Student Poster Competition:

Yes

Partitioning Nitrification Derived N2O Emission from Ammonia Oxidizing Bacteria (AOB) and Ammonia Oxidizing Archaea (AOA)

dliang — Fri, 31 Jul 2015 17:15:42 +0000

Poster Number:

222

Presenter/Primary Author:

Di Liang

Co-Authors:

Phil Robertson

N₂O is a potent greenhouse gas and its global warming potential is 298 times higher than carbon dioxide (CO₂). In 2013, 74% of the total N₂O emission in the U.S.

Student Poster Competition:

Yes

Exploring the soil food web structure and carbon dynamics of the McMurdo Dry Valleys LTER, Antarctica

eshaw — Fri, 31 Jul 2015 16:04:44 +0000

Poster Number:

215

Presenter/Primary Author:

Ashley Shaw

Co-Authors:

Byron J. Adams

Co-Authors:

Ross A. Virginia

Co-Authors:

Diana H. Wall

In the McMurdo Dry Valleys, Antarctica there are two basic soil food webs: wet (lake and stream margins, <5% of the valley) and dry (~95% of the valley).

Student Poster Competition:

Yes

The role of disturbance, larval supply, and native community on the establishment of a non-native species on oil platforms in the Santa Barbara Channel

sviola — Fri, 31 Jul 2015 15:46:07 +0000

Poster Number:

213

Presenter/Primary Author:

Sloane Viola

Co-Authors:

Mark Page

Co-Authors:

Robert Miller

Co-Authors:

Susan Zaleski

Co-Authors:

Brandon Doheny

Co-Authors:

Jenifer Dugan

Co-Authors:

Donna Schroeder

The invasion and spread of non-native plant and animal species is considered one of the greatest threats to global biodiversity and ecosystem function.

Student Poster Competition:

Yes