Search Results for:

Data Management for LTER Ecologists Shortcourse

The course will cover aspects of the entire data life cycle. Best practices will be introduced including metadata content, data cleaning, database design, management of large data volumes and quality control. Best choices of technologies for various tasks will be discussed and supplemented with hands on exercises in using workflow engines, spreadsheets vs. databases, and… Read more »

GeoNIS Implementation with PASTA

The GeoNIS is intended to be the spatial data component of the network-wide NIS development. The project exposes and merges heterogeneous GIS data from the 26 LTER sites into a standard format available for the Network and broader community to perform synthetic analysis, data discovery, and visualization. Goal 3.1 of the NIS is to increase… Read more »

Training workshop: Software tools and strategies for managing sensor networks

Abstract LTER sites are actively deploying, operating, or exploring establishment of sensor networks and there is a need for coordinated training on useful tools and strategies for managing the high volume of streaming data and associated metadata. A training workshop that was cost-shared among the LTER Network Office, the NCEAS’s Kepler REAP Project, and DataONE… Read more »

Exploring the Seasonal Synchrony of Catchment Nitrogen Dynamics: The Search for a Unifying Theoretical Framework

Contrary to the predictions stemming from the nitrogen saturation hypothesis (Stoddard, 1994), some forested long-term research sites in Eastern North America exhibit peak streamwater nitrate exports during the growing season. Some initial hypotheses about climatic controls (Mullholland and Hill, 1997) have recently been questioned (Goodale et al., 2009). This is a proposal to fund a… Read more »

Enhancement of the LTER Controlled Vocabulary to Support Data Synthesis

Goals: The credo of this working group is that: Scientists seeking data should be able to efficiently and reliably locate LTER datasets through searching or browsing. In 2011, the LTER Controlled Vocabulary Working Group made substantial progress towards this goal (report attached). That progress included creating a thesaurus of over 600 keywords (http://vocab.lternet.edu) and using… Read more »

Synthesis of stream ecosystem responses to nutrient enrichment at multiple trophic levels

The goals of this proposed LTER Synthesis Working Group are (1) to initiate and coordinate the integration of data from multiple sites on stream ecosystem responses to nutrient amendment, (2) to synthesize these data with a quantitative evaluation of functional responses at the microbial, primary producer, consumer and whole-stream levels, (3) to produce an NSF… Read more »

Sensitivity of ecosystem properties to winter climate anomalies

Climate change alters ecosystem and community properties and although inter-annual variation occurs year-round (Dominguez et al. 2012), most research on the response of ecosystems to climate change occurs during the primary growing season (e.g. Knapp et al. 2002) or uses annual averages that homogenize across seasons (e.g. Knapp & Smith 2001, Hsu et al. 2012)…. Read more »

The Ecosystem Sensitivity to Rainfall Experiment (EcoSeRE): Design and Synthesis

Objectives We are requesting funds to assemble a working group of scientists (primarily LTER and ILTER) with interest and experience in designing and conducting climate change experiments. Our goal is to continue to design a network-level experiment, proposed previously as part of the LTER Decadal Planning process, to manipulate rainfall (i.e., impose drought) in terrestrial… Read more »

Responses of soft sediment coastal ecosystems to sea level rise and coastal squeeze in the LTER Network

Goals: Coastal ecosystems are highly valued as key economic and cultural assets for society. They provide a wealth of ecosystem functions including storm protection, nutrient cycling, carbon sequestration, water filtration, detrital processing, fisheries, food web support, biodiversity and wildlife habitat. Rapidly growing populations and expanding development are intensifying pressures on these valuable ecosystems. Sea-level rise… Read more »

A guide to successful graduate student socio-ecological research: Insights from the Long Term Ecological Research Network

Background Two separate working groups at the 2012 ASM provided opportunities for students to discuss their socio-ecological research experiences, and to identify best practices that meet the challenges of this research agenda. The GSS working group, “Sharing Stories from Outside the Box,” was an opportunity for students to speak openly about the particular challenges of… Read more »