eHALOPH - Halophytes Database

Authors	Janousek, CN; Dugger, BD; Drucker, BM; Thorne, KM
Author Full Name	Janousek, Christopher N.; Dugger, Bruce D.; Drucker, Brandon M.; Thorne, Karen M.
Title	Salinity and inundation effects on productivity of brackish tidal marsh plants in the San Francisco Bay-Delta Estuary
Source	HYDROBIOLOGIA
Language	English
Document Type	Article
Author Keywords	Biomass; Climate change; Plant growth; Sea-level rise; Suisun Bay
Keywords Plus	SEA-LEVEL RISE; SALT-MARSH; SPARTINA-ALTERNIFLORA; COASTAL WETLANDS; ELEVATED CO2; RESPONSES; GROWTH; ACCRETION; IMPACTS; STRESS
Abstract	Plant productivity is central to numerous ecosystem functions in tidal wetlands. We examined how productivity of brackish marsh plants in northern California responded to abiotic stress gradients of inundation and salinity using two experimental approaches. In a greenhouse study with varying salinity, shoot production and biomass of Juncus balticus, Schoenoplectus acutus and S. americanus all declined monotonically with higher salinity, with evidence of differences in sensitivity among species by their varied functional responses. Salinity also negatively affected fecundity for the one species (S. americanus) that produced enough inflorescences during the experiment for analysis. In a field manipulation of inundation and initial pore water salinity, total end-of-season biomass and other metrics of growth in the high marsh species, J. balticus, had unimodal relationships with inundation. Root production tended to be greater strongly impacted by greater inundation than shoot production. The salinity treatment quickly dissipated for treatments that were flooded more frequently but persisted at a higher marsh elevation where it suppressed plant growth. These results suggest that both increased flooding and salinity associated with climate change and sea-level rise may negatively impact productivity of brackish marsh species, but with variable effects by species and stressor.
Author Address	[Janousek, Christopher N.; Dugger, Bruce D.; Drucker, Brandon M.] Oregon State Univ, Dept Fisheries & Wildlife, 104 Nash Hall, Corvallis, OR 97331 USA; [Thorne, Karen M.] US Geol Survey, Western Ecol Res Ctr, One Shields Ave, Davis, CA 95616 USA
Reprint Address	Janousek, CN (corresponding author), Oregon State Univ, Dept Fisheries & Wildlife, 104 Nash Hall, Corvallis, OR 97331 USA.
E-mail Address	janousec@oregonstate.edu
ORCID Number	Janousek, Christopher/0000-0003-2124-6715
Funding Agency and Grant Number	National Oceanic and Atmospheric Administration (EESLR) [NA15NOS4780171]; Priority Ecosystems Science program of the U.S. Geological Survey
Funding Text	This research was funded by the National Oceanic and Atmospheric Administration (EESLR cooperative agreement NA15NOS4780171) and the Priority Ecosystems Science program of the U.S. Geological Survey. We thank Veronica Corbett, Karen Backe, Mike Vasey, Ari Goodman, Mason Hill, Dave Nelson, Charlie Nelson, Sonya Kaufman, and Kevin Buffington for project assistance. We also thank two anonymous reviewers and Dylan Chapple for comments that helped improve the paper. Any use of trade, product, or firm names in this publication is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Publisher	SPRINGER
Publisher City	DORDRECHT
Publisher Address	VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
ISSN	0018-8158
29-Character Source Abbreviation	HYDROBIOLOGIA
ISO Source Abbreviation	Hydrobiologia
Publication Date	NOV
Year Published	2020
Volume	847
Issue	20
Special Issue	SI
Beginning Page	4311
Ending Page	4323
Digital Object Identifier (DOI)	10.1007/s10750-020-04419-3
Page Count	13
Web of Science Category	Marine & Freshwater Biology
Subject Category	Marine & Freshwater Biology
Document Delivery Number	OQ9BN
Unique Article Identifier	WOS:000585092700002
Plants associated with this reference	Schoenoplectus acutus