Christopher N. Janousek Kevin J. Buffington Glenn R. Guntenspergen Karen M. Thorne Bruce D. Dugger John Y. Takekawa 20170206 Tabular Digital Data http://doi.org/10.5066/F70P0X6C Christopher N. Janousek Kevin J. Buffington Glenn R. Guntenspergen Karen M. Thorne Bruce D. Dugger John Y. Takekawa 20170203 Publication (Journal) Ecosystems First online New York, Philadelphia Springer US http://link.springer.com/article/10.1007/s10021-017-0111-6 Decomposition of plant matter is one of the key processes affecting carbon cycling and storage in tidal wetlands. In this study, we evaluated the effects of factors related to climate change (temperature, inundation) and vegetation composition on rates of litter decay in seven tidal marsh sites along the Pacific coast. In 2014 we conducted manipulative experiments to test inundation effects on litter decay at Siletz Bay, OR and Petaluma marsh, CA. In 2015 we studied decay of litter in high and low elevation marshes at seven Pacific coast sites. These data support the following publication: Janousek, C.N., Buffington, K.J., Guntenspergen, G.R. et al. Ecosystems (2017). doi:10.1007/s10021-017-0111-6. http://link.springer.com/article/10.1007/s10021-017-0111-6 These data were collected to help evaluate the effects of abiotic and biotic factors on decomposition of organic matter in Pacific Coast tidal marshes. The data were developed through field work and deployment of autonomous temperature sensors at the sites. Taxonomic authority used for identification: Baldwin BG, Goldman DH, Keil DJ, Patterson R, Rosatti TJ, Wilken DH. 2012. The Jepson Manual. Vascular Plants of California. 2nd ed. University of California Press, Berkeley, CA, 1568 pp. Cook T, Meyers SC, Sundberg S (eds). 2015. Oregon Vascular Plant Checklist. Amaranthaceae. http://www.oregonflora.org/checklist.php. Version 1.5. 2014 2015 See Supplemental Info Complete None planned -124.541015625 -118.8555908203 47.3918417609 34.0139652749 USGS Thesaurus carbon cycling climate change sea-level change None decomposition inundation organic matter plant composition tidal marsh Salicornia pacifica Deschampsia cespitosa Distichlis spicata USGS Metadata Identifier USGS:586d8434e4b0f5ce109fc9ce None Pacific coast None. Please see 'Distribution Info' for details. The authors of these data require that users direct any questions pertaining to appropriate use or assistance with understanding limitations and interpretation of the data to the individuals/organization listed in the Point of Contact section. U.S. Geological Survey, PACIFIC REGION Christopher N Janousek Volunteer mailing address

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Vallejo CA 94592 707-562-2005 cjanousek@usgs.gov Kevin Buffington, Oregon State University and U.S. Geological Survey (co-author) Dr. Glenn Guntenspergen, U.S. Geological Survey (co-author) Dr. Karen Thorne, U.S. Geological Survey (co-author) Dr. Bruce Dugger, Oregon State University (co-author) Dr. John Takekawa, Audubon, California (co-author) Tristan Edgarian, Craig Cornu, Jenni Schmitt, Patrick Brennand, Yareli Sanchez, Lennah Shakeri, Laura Hollander, Ari Goodman, Sierra Blakely, Chase Freeman, Jimmie Lambert, Dave Nelson, Mee-ya Monnin, Jordan Rosencranz (research assistance) Southwest Climate Science Center, U.S. DOI (funder) USGS Ecosystems Program (funder) USGS Land-use Research and Development Program (funder) Oregon State University (funder) Environment as of Metadata Creation: Microsoft [Unknown] Version 6.2 (Build 9200) ; Esri ArcGIS 10.4.1 (Build 5686) Service Pack N/A (Build N/A) Digitization of manually-collected data was double checked. No formal logical accuracy tests were conducted. The data set generally does not include litter bags where seals were partially broken during the study period, with the exception of some paper standard samples. A formal accuracy assessment of the horizontal positional information in the data set has not been conducted. A formal accuracy assessment of the vertical positional information in the data set has either not been conducted, or is not applicable. Initial and final dry mass of litter bags was ascertained with an analytical balance. Marsh surface elevation data were obtained with real-time kinematic (RTK) surveying and then processed to determine orthometric heights (NAVD88) with geoid model 12A in Leica Geomatics Office software. Water level data were obtained with Solinst water level loggers at the sites where the mesocosm experiments were conducted and then corrected with concurrent barometric pressure data. Unknown Field methodology Methodology for constructing the litter bags follow Kirwan et al. 2013. Other methods in the paper follow other protocols, which are more fully explained in Janousek, C.N., Buffington, K.J., Guntenspergen, G.R., Thorne, K.M., Dugger, B.D., and Takekawa, J.Y., 2017, Inundation, vegetation, and sediment effects on litter decomposition in Pacific coast tidal marshes. Ecosystems Kirwan ML, Langley JA, Guntenspergen GR, Megonigal JP 2013 Publication (Journal Article) United States Biogeosciences http://www.biogeosciences.net/10/1869/2013/ The entity and attribute information provided here describes the tabular data associated with the data set. Please review the detailed descriptions that are provided (the individual attribute descriptions) for information on the values that appear as fields/table entries of the data set. The entity and attribute information was generated by the individual and/or agency identified as the originator of the data set. Please review the rest of the metadata record for additional details and information. U.S. Geological Survey - ScienceBase GS ScienceBase Mailing and Physical

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Denver CO 80225 1-888-275-8747 sciencebase@usgs.gov Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Tabular Digital Data http://doi.org/10.5066/F70P0X6C None. No fees are applicable for obtaining the data set. 20200830 Pai Hui Yu U.S. Geological Survey, PACIFIC REGION Cartographic Technician mailing address

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Sacramento CA 95819 US 916-278-9467 916-278-9475 pyu@usgs.gov FGDC Biological Data Profile of the Content Standard for Digital Geospatial Metadata FGDC-STD-001.1-1999