2012 LTER ASM - Altered moisture regimes

Hemlock Woolly Adelgid induced mortality of eastern hemlock influences timing and magnitude of streamflow from headwater catchments in the southern Appalachians

sbrantley — Tue, 04 Sep 2012 11:45:45 +0000

Poster Number:

383

Presenter/Primary Author:

Steven Brantley

Co-Authors:

Chelcy R. Ford

Co-Authors:

Katherine J. Elliott

Co-Authors:

Stephanie H. Laseter

Eastern hemlock (Tsuga canadensis (L.) Carr.), an important evergreen canopy species in the southern Appalachian Mountains, is currently experiencing widespread mortality from hemlock wool

Investigating ecological function of arbuscular mycorrhizal fungal (AMF) communities present in KBS-LTER agronomic treatment soils under low nutrient and drought conditions.

bgottshall — Sat, 01 Sep 2012 14:37:36 +0000

Poster Number:

367

Presenter/Primary Author:

Brad Gottshall

Co-Authors:

Sarah Emery

Agricultural systems will be facing a new challenges in the future as the climate changes.

Student Poster:

Yes

Climate variability, land use, disturbance regimes, and water supplies in a Rocky Mountain ecosystem

pbourgeron — Fri, 31 Aug 2012 23:35:20 +0000

Poster Number:

357

Presenter/Primary Author:

Patrick Bourgeron

Our study areas include portions of the Niwot Ridge Long Term Ecological Research site and Boulder Creek, which is representative of the Colorado Front Range, where population increased by 30% from

Iron redox cycling: unexplored mechanisms for soil organic matter decomposition

wsilver — Fri, 31 Aug 2012 18:38:30 +0000

Poster Number:

341

Presenter/Primary Author:

Whendee Silver

Co-Authors:

Steven Hall

Iron (Fe) oxide minerals have long been known to protect soil organic carbon (C) from microbial decomposition, especially in humid tropical soils abundant in both Fe and C.

Microbial functional response to altered precipitation timing and duration – implications for the soil carbon cycle

lzeglin — Fri, 31 Aug 2012 02:38:04 +0000

Poster Number:

331

Presenter/Primary Author:

Lydia Zeglin

Co-Authors:

Peter Bottomley

Co-Authors:

Ari Jumpponen

Co-Authors:

Chuck Rice

Co-Authors:

Miguel Arango

Co-Authors:

Adam Lindsley

Co-Authors:

Andrew McGowan

Co-Authors:

David Myrold

A significant amount of carbon (C) is processed and stored in prairie soils: grasslands cover 6.1-7.4% of the earth’s land surface and hold 7.3-11.4% of global soil C.

Changes in crop productivity as a result of shallow groundwater, Yahara Watershed, Wisconsin

szipper — Thu, 30 Aug 2012 23:14:31 +0000

Poster Number:

330

Presenter/Primary Author:

Samuel Zipper

Co-Authors:

Eric G. Booth

Co-Authors:

Steven P. Loheide II

A primary limitation on agricultural yields in many parts of the world, including the US Corn Belt, is the quantity and temporal distribution of water resources.

Student Poster:

Yes

The effects of extreme heat and drought on a tallgrass prairie ecosystem

dhoover — Wed, 29 Aug 2012 16:19:03 +0000

Poster Number:

310

Presenter/Primary Author:

David Hoover

Co-Authors:

Alan K Knapp

Co-Authors:

Melinda D Smith

Climate extremes, such as heat waves and drought, are expected to increase in their frequency and intensity over the next century. We examined the responses of the tallgrass prairie ecosystem

Student Poster:

Yes

Local-scale plant species richness and the regional species pool

kwilcox — Tue, 28 Aug 2012 16:49:09 +0000

Poster Number:

293

Presenter/Primary Author:

Kevin Wilcox

Co-Authors:

Melinda D. Smith

Co-Authors:

Sally E. Koerner

Co-Authors:

Alan K. Knapp

Plant community structure has been shown to impact ecosystem function. However, these effects vary among ecosystems, data collection techniques, and across spatial and temporal scales.

Student Poster:

Yes

Assessment of diatom assemblages in a subtropical karstic wetland: ecosystem-scale inference models and trajectory analysis

slee — Mon, 27 Aug 2012 19:24:09 +0000

Poster Number:

286

Presenter/Primary Author:

Sylvia Lee

Co-Authors:

Evelyn Gaiser

Co-Authors:

Joel Trexler

Co-Authors:

Peter Minchin

We developed diatom-based prediction models of hydrology and periphyton abundance to inform assessment tools for a hydrologically-managed wetland.

Student Poster:

Yes

Biotic mechanisms contributing to the stability of productivity differ along a gradient of rainfall variability

lhallett — Fri, 24 Aug 2012 20:21:12 +0000

Poster Number:

268

Presenter/Primary Author:

Lauren Hallett

Co-Authors:

Joanna Hsu

Co-Authors:

Elsa Cleland

Co-Authors:

Scott Collins

Co-Authors:

Timothy Dickson

Co-Authors:

Emily Farrer

Co-Authors:

Laureano Gherardi

Co-Authors:

Katherine Gross

Co-Authors:

Richard Hobbs

Co-Authors:

Laura Turnbull

Co-Authors:

Katharine Suding

Productivity increases with precipitation across spatial gradients but does not as closely track precipitation over time, nor does high variability in precipitation lead to highly unstable producti

Student Poster:

Yes