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Authors Buffington, KJ; Goodman, AC; Freeman, CM; Thorne, KM
Author Full Name Buffington, Kevin J.; Goodman, Arianna C.; Freeman, Chase M.; Thorne, Karen M.
Title Testing the interactive effects of flooding and salinity on tidal marsh plant productivity
Source AQUATIC BOTANY
Language English
Document Type Article
Author Keywords Wetland; Climate change; Sea-level rise; Carbon; Adaptation
Keywords Plus RIVER DELTAIC PLAIN; SEA-LEVEL RISE; COASTAL WETLANDS; SALT MARSHES; SALTWATER INTRUSION; SEED-GERMINATION; SPARTINA PATENS; INUNDATION; STRESS; RESILIENCE
Abstract Tidal wetlands support plant communities that facilitate carbon storage, accrete soil, and provide habitat for terrestrial and aquatic species. Climate change is likely to alter estuaries through sea-level rise and changing precipitation patterns, although the ecological responses are uncertain. We were interested in plant responses to physiological stress induced by elevated water salinity and flooding conditions, which may be more prevalent under climate change.. We used a greenhouse experiment and factorial flooding (1, 12, 24, and 48 % time) and salinity (0, 5, 15, 30 PSU) treatments to evaluate the productivity responses of three emergent herbaceous species (Carex lyngbyei, Triglochin maritima, and Argentina pacifica) common to tidal marshes of the Pacific Northwest, USA. We measured weekly changes in plant height and final above and belowground biomass for all species after 10 weeks. Increased salinity reduced final above and belowground biomass significantly in all three species, with A. pacifica responding the most, followed by C. lyngbyei and T. maritima. Increased flooding also reduced total biomass in A. pacifica and T. maritima. There was a significant response in C. lyngbyei aboveground biomass and A. pacifica height to the flooding-salinity interaction. These results indicate emergent plant community composition may change in response to novel climate conditions in estuaries, driven by distinct physiological tolerances to salinity and flooding, and highlight the importance of considering multiple climate drivers when projecting ecosystem change. This may be especially true for estuaries that currently have prolonged freshwater phases like those in the Pacific Northwest.
Author Address [Buffington, Kevin J.; Goodman, Arianna C.; Freeman, Chase M.; Thorne, Karen M.] US Geol Survey, Western Ecol Res Ctr, One Shields Dr, Davis, CA 95616 USA; [Goodman, Arianna C.] Oregon State Univ, Corvallis, OR 97331 USA
Reprint Address Buffington, KJ (corresponding author), US Geol Survey, Western Ecol Res Ctr, One Shields Dr, Davis, CA 95616 USA.
E-mail Address kbuffington@usgs.gov
Funding Agency and Grant Number DOI Northwest Climate Adaptation Science Center; USGS Land Carbon Program; U.S. Fish & Wildlife ServiceUS Fish & Wildlife Service
Funding Text This research was funded by DOI Northwest Climate Adaptation Science Center and USGS Land Carbon Program. Project support was provided by the U.S. Fish & Wildlife Service, Billy Frank Jr. Nisqually National Wildlife Refuge and G. Nakai. We thank T. Forstner, C. Janousek, S. Jones, K. Backe, A. Sanchez, R. Klinger, M. Davis, I. Woo, and two anonymous reviewers. This project would not have been possible without D. Buckingham and many volunteers and JBLM interns including M. Erskine, K. McKenzie, O. Burke, J. Lawson, M. Baer, J. Pedersen, E. Garachico, S. Buhler, K. Austin, R. Bartolatz, M. Marshall, G. Prosser, T. Becker, J. Smith. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. government.
Times Cited 1
Total Times Cited Count (WoS, BCI, and CSCD) 1
Publisher ELSEVIER
Publisher City AMSTERDAM
Publisher Address RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS
ISSN 0304-3770
29-Character Source Abbreviation AQUAT BOT
ISO Source Abbreviation Aquat. Bot.
Publication Date MAY
Year Published 2020
Volume 164
Article Number 103231
Digital Object Identifier (DOI) 10.1016/j.aquabot.2020.103231
Page Count 8
Web of Science Category Plant Sciences; Marine & Freshwater Biology
Subject Category Plant Sciences; Marine & Freshwater Biology
Document Delivery Number LR8MQ
Unique Article Identifier WOS:000535951000006
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