2009 LTER All Scientists Meeting - Ecological Complexity

The propagating response of inner shelf circulation to wind relaxations along the central California Coast

Libe Washburn — Thu, 10 Sep 2009 14:38:43 +0000

Poster Number:

395

Presenter/Primary Author:

Libe Washburn

Co-Authors:

Chris Melton

Co-Authors:

Melanie Fewings

Co-Authors:

Chris Gotschalk

Following relaxations prevailing equatorward winds, warm water from the Santa Barbara Channel flows poleward around Point Conception and along the central California coast. Sequences of satellite sea surface temperature images show the events as bands of warm water extending up to 20 km offshore. Characteristics of these flows were examined using time series of currents and temperature from an array of moorings along the inner shelf (15 m depth), a mooring on the mid-shelf (100 m depth), and surface current observations from high frequency radars.

New Phenology Research at the H.J. Andrews Experimental Forest

Sherri Johnson — Tue, 08 Sep 2009 16:26:56 +0000

Poster Number:

387

Presenter/Primary Author:

Sherri Johnson

Co-Authors:

Mark Schulze

Co-Authors:

Matt Betts

Co-Authors:

Judy Li

Co-Authors:

Sarah Frey

Co-Authors:

Jay Sexton

We are beginning new studies of phenology at the Andrews Forest to better understand influences of existing complex climatic gradients on timing of springtime life history events for multiple trophic levels. Phenological events are highly sensitive to temperature and climatic variations and are some of the most responsive indicators to climate change. By studying timing of events at multiple sites in a very heterogeneous climatic landscape, we expect to learn much about plant, insect and bird responses to current abiotic variability (i.e.

Ecosystem productivity and soil food web structure – paired forest and grassland transects across Oregon

Samantha Colby — Mon, 31 Aug 2009 18:25:35 +0000

Poster Number:

331

Presenter/Primary Author:

Samantha Colby

Co-Authors:

Andrew Moldenke

The vast majority of biodiversity on Earth lives in the soil; to what degree are this diversity and the ecosystem functions they perform regulated by climate and plant productivity? In this study, we seek to determine the relationship between climate/Net Primary Productivity (NPP) and soil food web structure. Research sites, each consisting of a forest and paired grassland, are located along east-west transects in Oregon; these transects encompass climates producing the greatest productivity and nearly the least productivity on the continent.

Student Poster:

Yes

Cross-Site Working Group on Coupled Human-Natural Systems

Craig Harris — Mon, 13 Jul 2009 15:38:27 +0000

Final Report (Required, .pdf format only) :

Cross-Site Working Group on Coupled Human-Natural Systems Final Report

Organizer:

William Freudenburg

Co-organizer(s):

Craig Harris

This session is intended both for social and biophysical scientists who want to help develop a proposal for the kind of “multi-site, highly collaborative and integrated research initiative” envisioned by the LTER planning group. The focus will be on what the LTER planning process calls the “centerpiece” of the group's conceptual framework, as well as one of “Grand Challenges” to be addressed at the network level – “the dynamics of coupled human-natural ecosystems.”

Preferred Dates:

Sept. 14

Working Group Duration:

Session Info

Session(s):

Working Group Session 5

Room:

Reusch Auditorium Sweet

Official Participants

Additional Participants:

"Craig Harris" <Craig.Harris@SSC.MSU.EDU>, Victor Thompson <thompson.2042@osu.edu>, John Turck <jaturck@#uga.edu>, Hannah Gosnell <gosnellh@geo.oregonstate.edu>, Sharon Hall <sharonjhall@asu.edu>, Abigail York <abigail.york@asu.edu>, Jim Gosz <jgosz@uidaho.edu>, "Wm. R. Freudenburg" <freudenburg@es.ucsb.edu>

Disturbance by Waves Alters The Structure of Kelp Forest Food Webs by Changing Foundation Species Abundance

Jarrett Byrnes — Wed, 01 Jul 2009 18:53:22 +0000

Poster Number:

Presenter/Primary Author:

Jarrett Byrnes

Co-Authors:

Daniel C. Reed

Co-Authors:

Bradley J. Cardinale

Most climate change research has concentrated on the direct effects of environmental change for individual species and their interactions. By affecting key foundation species and ecosystem engineers, however, climate change may have a variety of indirect that may complicate our abilities to predict the response of communities and ecosystems. In California, climate change has increased the frequency and intensity of storms over the last half century. Storms may directly alter the structure of kelp forest food webs via disturbance.

A unified framework to quantify biogeochemical complexity of large-scale ecological systems

Tiffany Troxler — Tue, 30 Jun 2009 13:49:07 +0000

Final Report (Required, .pdf format only) :

2009 LTER ASM report: A unified framework to quantify biogeochemical complexity of large-scale ecological systems

Organizer:

Tiffany Troxler

Co-organizer(s):

Dan Liptzin

Co-organizer(s):

Chelsea Crenshaw

Ecological complexity, a new but rapidly developing field integrating complexity theory and ecosystem function, can provide insights to tackle critical environmental problems. Here, ecological complexity is not merely describing complicated systems, but complex in the sense of studying many interacting components controlled by drivers operating across multiple scales.

Preferred Dates:

Sept. 14

Working Group Duration:

Session Info

Session(s):

Working Group Session 1

Session(s):

Working Group Session 2

Room:

Longs Peak Diamond East

Recent Advances and Opportunities for Urban Long Term Ecological Research: Theory, Data, and Methods

Morgan Grove — Tue, 30 Jun 2009 12:57:01 +0000

Organizer:

Morgan Grove

Co-organizer(s):

Colin Polsky

Co-organizer(s):

Laura Ogden

Co-organizer(s):

Rinku Roy Chowdhury

Co-organizer(s):

Ted Gragson

Co-organizer(s):

Kelli Larson

Co-organizer(s):

Christopher Boone

The prospect for long term, interdisciplinary research continues to grow since the "regionalizing" of the Coweeta and North Temperate Lakes LTER sites and the initiation of the two urban LTER sites: Baltimore and Central-Arizona-Phoenix. Additional sites have recruited social scientists and expanded both the questions asked and the geographic extent of their interests. Thus, there is growing opportunities for collaboration among sites that might not identify themselves as "urban," in conjunction with the existing regional and urban sites.

Preferred Dates:

Sept. 14

Working Group Duration:

Session Info

Session(s):

Working Group Session 4

Room:

Longs Peak Diamond West

Coordinating Phenology Monitoring and Research Across the LTER Network

Mark Losleben — Thu, 07 May 2009 21:30:21 +0000

Final Report (Required, .pdf format only) :

PhenologyWorkingGroup09Report.pdf.pdf

Organizer:

Mark Losleben

Co-organizer(s):

Jake Weltzin

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.

Preferred Dates:

Sept. 15

Working Group Duration:

Session Info

Session(s):

Working Group Session 3

Room:

Longs Peak Keyhole

Working Group Materials

Related materiels:

MOU_v.9.26.08.doc

Weltzin LTER ASM 2009 working group.pdf