2012 LTER ASM - NWT

Salix shrub expansion over the past 62 years in rocky mountain alpine tundra

aformica — Sat, 01 Sep 2012 01:23:37 +0000

Poster Number:

359

Presenter/Primary Author:

Adam Formica

Co-Authors:

Emily C. Farrer

Co-Authors:

Katharine N. Suding

Global change factors are causing a shift in tundra vegetation in that woody plants are encroaching into herbaceous-dominated communities.

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

Dynamics of social-ecological systems in the Colorado Front Range: Fire regimes, thresholds, and stable states

pbourgeron — Fri, 31 Aug 2012 23:29:12 +0000

Poster Number:

356

Presenter/Primary Author:

Patrick Bourgeron

Co-Authors:

humphries

Co-Authors:

williams

Co-Authors:

seastedt

Forecasting change in mountain social-ecological systems presents significant challenges, as they are likely to display non-linear responses, i.e., they are more easily pushed or “tipped” across cr

Spatial and temporal variability in soil CO2 fluxes during the snow covered season on Niwot Ridge

dliptzin — Thu, 30 Aug 2012 00:03:19 +0000

Poster Number:

316

Presenter/Primary Author:

Daniel Liptzin

Co-Authors:

Brian Seok

Co-Authors:

Detlev Helmig

Co-Authors:

Mark W. Williams

Until recently, microbial activity in seasonally snow covered ecosystems was thought to be limited during the snow-covered season. However, in the last decade many studies have shown that the

Global Change Effects on Alpine Microbial Communities and Nitrogen Cycling

efarrer — Wed, 22 Aug 2012 22:33:52 +0000

Poster Number:

260

Presenter/Primary Author:

Emily Farrer

Co-Authors:

David Gonzalez

Co-Authors:

Katharine Suding

Co-Authors:

Benjamin Houlton

Anthropogenic pollution is predicted to cause significant environmental change throughout the world’s ecosystems.

Carbon allocation and soil microbes explain plant response to N deposition

efarrer — Mon, 20 Aug 2012 20:33:54 +0000

Poster Number:

246

Presenter/Primary Author:

Emily Farrer

Co-Authors:

Katharine N. Suding

Nitrogen enrichment causes changes in species composition, with a few species increasing in dominance and many species declining. Despite this consistent pattern across many systems, it is st

Visitor willingness to pay U.S. Forest Service recreation fees in New West rural mountain economies

ckeske — Fri, 17 Aug 2012 18:37:35 +0000

Poster Number:

238

Presenter/Primary Author:

Catherine Keske

Co-Authors:

Adam Mayer

This study evaluates visitors’ stated willingness to pay (WTP) to recreate at Colorado “Fourteeners”, peaks that rise above higher than 14,000 feet.

Understanding variation in zooplankton communities among alpine kettle ponds within the Niwot Ridge LTER

ccurrier — Thu, 16 Aug 2012 22:33:52 +0000

Poster Number:

231

Presenter/Primary Author:

Courtney Currier

Co-Authors:

Johnson, Piet

Variation in zooplankton assemblages may reflect large-scale shifts in aquatic communities following changes to the biotic and abiotic environment.

Student Poster:

Yes

Unraveling the impact of climate on groundwater storage, hydrochemistry, and residence time in the high-elevation catchments of the Niwot Ridge LTER site, Colorado

mzeliff — Wed, 08 Aug 2012 19:05:55 +0000

Poster Number:

188

Presenter/Primary Author:

Morgan Zeliff

Co-Authors:

Mark W. Williams

Groundwater storage, hydrochemistry and residence time are all known to vary widely depending on hydrogeologic conditions.

Student Poster:

Yes

The role of dust on snow and other aeolian inputs in biogeochemical cycling in barren, alpine catchments

mladenov — Tue, 07 Aug 2012 19:28:37 +0000

Poster Number:

185

Presenter/Primary Author:

Natalie Mladenov

Co-Authors:

Mark W. Williams

Co-Authors:

Steve K. Schmidt

Co-Authors:

Alex Blum

Many alpine areas are experiencing deglaciation and biogeochemical changes driven by temperature rise and changes in atmospheric deposition.