Cross site investigation using LTER Data.
Recent work has suggested that freshwater ecosystems may play a significant role in the global carbon cycle, potentially emitting 1.2 Pg C y-1 to the atmosphere [1, 2]. The majority of the CO2 that is degassed from streams and rivers comes from the decomposition of allochthonous leaf litter inputs [3, 4]. The process of decomposition… Read more »
Introduction and Goals: In the Western US mountain regions, winter temperature increases will lead to the reduction and even loss of winter snowpacks. A shift from snow to rain-dominated systems will alter seasonal patterns of streamflow, soil moisture, soil temperature, etc. affecting a myriad of ecosystem processes. This proposed work will develop a working group… Read more »
This proposed effort will “stimulate cross-site and Network-level synthesis” by addressing issues of collaboration within the LTER network. Scientific synthesis should be promoted as we better understand the nature of that collaboration. The concept that the LTER program works as a network of interacting sites and scientists is grounded in the earliest documents of the… Read more »
Overview: We propose to organize a working group that will analyze and synthesize long-term data on the relationship between precipitation variability and the structure of North American (NA) grassland plant communities. This project will build on prior LTER-related synthetic efforts that have evaluated the response of aboveground net primary productivity (ANPP) to precipitation variability [1-2]… Read more »
We propose a new synthesis effort between the California Current Ecosystem (CCE) LTER, the Mo’orea Coral Reef (MCR) LTER and the Santa Barbara Channel (SBC) LTER to incorporate regional modeling of physical processes around islands in both the tropical Pacific and California Current regions. While these LTERs are focused on two vastly different oceanic regions,… Read more »
The Maps and Local (MALS) project is a collaborative effort to develop common methods for research on social-ecological systems at the LTER network scale. (http://www.lter.uaf.edu/bnz_MALS.cfm) Eleven sites have been funded to participate in MALS under the social science supplement for 2009-2010 and 2010-2011; another four sites are participating using other resources. Ten sites have completed… Read more »
The MALS project is a collaborative effort to develop common methods for research on social-ecological systems at the LTER network scale. We request funding to help support a cross-site comparative analysis, produce final products of the MALS collaborative effort, and build on the MALS experience to plan for future cross-site research. To meet this objective… Read more »
We request funds to conduct a meeting at Harvard Forest in April, 2010. The meeting will provide the opportunity for further discussion, synthesis of ideas and LTER data, and the preparation of two manuscripts that follow from our 2009 ASM working group “Invertebrate impacts to ecosystem services under climate change”. The proposed meeting will be… Read more »
The goal of this working group is to conduct a comparative analysis of and publish a paper on the hydrologic effects of ecosystem responses to climate change and land use change at LTER sites. Climate change and land use change are expected to have large effects on ecosystem water use and water yield, but despite… Read more »
Due to the unique nature of the LTER network, robust, transparent, long–term data sets from agriculture forestry and other vital terrestrial ecosystems are available, that quantify C sequestration and GHG mitigation, resulting from management practice alteration and adaptation to climate, and land–use change. There is great potential for LTER data to be utilized for environmental,… Read more »
