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Authors Uyeda, KA; Deutschman, DH; Crooks, JA
Author Full Name Uyeda, Kellie A.; Deutschman, Douglas H.; Crooks, Jeffrey A.
Title Effects of Salt and Drought Stress on Germination of Non-native Plants in the Salt Marsh to Upland Transition Zone
Source ESTUARIES AND COASTS
Language English
Document Type Article
Author Keywords Invasive species; Salinity; Salt marsh; Ecotone; Estuary
Keywords Plus SOIL SATURATION; SALINITY; RESPONSES; ECOTONES; COAST
Abstract Non-native plants are often found in the transition between the high salt marsh and upland zones of southern California salt marshes. Although plants in these transition zones experience high levels of abiotic stress associated with high salinity and seasonally variable moisture levels, non-native plants are often able to germinate during brief periods of lowered soil salinity that occur after winter rain. In this study, the germination response of four non-native plants (Glebionis coronaria, Mesembryanthemum crystallinum, Atriplex semibaccata, and Bassia hyssopifolia) was tested in a growth chamber at a range of soil salinity and moisture conditions found within this zone. Glebionis coronaria and Mesembryanthemum crystallinum were restricted to a narrow range of less stressful soil conditions, with successfully germination generally only at soil salinity values of 10ppt or lower, and germination greatly diminished by low moisture levels. Atriplex semibaccata and Bassia hyssopifolia had successful germination at a wider range of soil conditions. The pattern of lower germination with low moisture levels was less pronounced for these species, and successful germination occurred at soil salinity levels of 20ppt and 30ppt, respectively. This indicates that non-native plants in the salt marsh vary in the extent to which germination is constrained by seasonal change in soil conditions. These results suggest that the potential management technique of controlling non-native plants through salt addition might not be effective for all non-native species. Species with a greater tolerance for high soil salinity and low moisture conditions might become more successful in the future, as rising sea levels and increase in drought conditions associated with global climate change create conditions that favor these species.
Author Address [Uyeda, Kellie A.; Crooks, Jeffrey A.] Tijuana River Natl Estuarine Res Reserve, 301 Caspian Way, Imperial Beach, CA 91932 USA; [Uyeda, Kellie A.; Deutschman, Douglas H.] San Diego State Univ, Dept Biol, 5500 Campanile Dr, San Diego, CA 92182 USA; [Deutschman, Douglas H.] Wilfrid Laurier Univ, 75 Univ Ave West, Waterloo, ON N2L 3CS, Canada
Reprint Address Uyeda, KA (reprint author), Tijuana River Natl Estuarine Res Reserve, 301 Caspian Way, Imperial Beach, CA 91932 USA.; Uyeda, KA (reprint author), San Diego State Univ, Dept Biol, 5500 Campanile Dr, San Diego, CA 92182 USA.
E-mail Address kuyeda@trnerr.org
ORCID Number Uyeda, Kellie/0000-0001-7043-3870
Funding Agency and Grant Number Office for Coastal Management, National Ocean Service, National Oceanic and Atmospheric Administration
Funding Text We thank J. Julienne and J. Jesu for the assistance with growth chamber setup and soil salinity processing. This research was conducted under an award from the Office for Coastal Management, National Ocean Service, National Oceanic and Atmospheric Administration.
Publisher SPRINGER
Publisher City NEW YORK
Publisher Address 233 SPRING ST, NEW YORK, NY 10013 USA
ISSN 1559-2723
29-Character Source Abbreviation ESTUAR COAST
ISO Source Abbreviation Estuaries Coasts
Publication Date SEP
Year Published 2019
Volume 42
Issue 6
Beginning Page 1686
Ending Page 1694
Digital Object Identifier (DOI) 10.1007/s12237-019-00599-x
Page Count 9
Web of Science Category Environmental Sciences; Marine & Freshwater Biology
Subject Category Environmental Sciences & Ecology; Marine & Freshwater Biology
Document Delivery Number IM5UF
Unique Article Identifier WOS:000478058300019
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