The Effects of Temperature and Seasonal Change on the Germination of Two Salt Marsh Species, Atriplex prostrata and Salicornia europaea, along a Salinity Gradient

1999 ◽  
Vol 160 (5) ◽  
pp. 861-867 ◽  
Author(s):  
Todd P. Egan ◽  
Irwin A. Ungar
Keyword(s):  
Salt Marsh ◽  
Seasonal Change ◽  
Salinity Gradient ◽  
Salicornia Europaea ◽  
Atriplex Prostrata ◽  
Effects Of Temperature ◽  
Salt Marsh Species

Germination response of dimorphic seeds of two halophyte species to environmentally controlled and natural conditions

2003 ◽  
Vol 81 (9) ◽  
pp. 918-926 ◽  
Author(s):  
Christy T Carter ◽  
Irwin A Ungar
Keyword(s):  
Salt Marsh ◽  
Plant Distribution ◽  
Salicornia Europaea ◽  
Tolerance Limits ◽  
Natural Conditions ◽  
Light Requirement ◽  
Stage Of Development ◽  
Atriplex Prostrata ◽  
Field And Laboratory Conditions ◽  
Germination Stage

To determine whether or not tolerance limits at the germination stage of development and annual germination patterns affect plant distribution in an inland salt marsh, we assessed germination of dimorphic seeds for Atriplex prostrata Boucher ex DC. and Salicornia europaea L. under field and laboratory conditions. Statistically significant differences were found in germination across marsh zones for both species in the field. However, germination percentages for small seeds of A. prostrata and S. europaea were above 50% and 75%, respectively, across all zones for seeds placed on the surface. For large seeds of each species placed on the surface, germination was above 90% across all zones. Small seeds for both species had primary dormancy, a light requirement for germination, and appeared to exhibit dormancy cycling. Large seeds of A. prostrata were nondormant from December through March, whereas large seeds of S. europaea were nondormant when produced. Persistent seed banks were most likely to be formed from small seeds of both species. Seeds typically germinate in the spring when salinity across the marsh is sufficiently low for seeds to germinate in all zones, indicating that the germination stage of development does not effect the spatial distribution of A. prostrata or S. europaea on the marsh.Key words: Atriplex prostrata, seed dormancy and germination, halophyte, Salicornia europaea, seed dimorphism, salt marsh zonation.

Mapping typical salt-marsh species in the Yellow River Delta wetland supported by temporal-spatial-spectral multidimensional features

2021 ◽  
Vol 783 ◽  
pp. 147061
Author(s):  
Cheng Zhang ◽  
Zhaoning Gong ◽  
Huachang Qiu ◽  
Yuan Zhang ◽  
Demin Zhou
Keyword(s):  
Salt Marsh ◽  
Yellow River ◽  
Yellow River Delta ◽  
River Delta ◽  
The Yellow River ◽  
The Yellow River Delta ◽  
Yellow River Delta Wetland ◽  
Salt Marsh Species

Germination and early establishment of lower salt-marsh species in grazed and mown salt marsh

1992 ◽  
Vol 3 (2) ◽  
pp. 247-252 ◽  
Author(s):  
J. P. Bakker ◽  
Y. Vries
Keyword(s):  
Salt Marsh ◽  
Salt Marsh Species ◽  
Early Establishment

Primary production and nutrient content in two salt marsh species,Atriplex portulacoides L. andLimoniastrum monopetalum L., in Southern Portugal

2007 ◽  
Vol 30 (3) ◽  
pp. 459-468 ◽  
Author(s):  
J. P. Neves ◽  
L. F. Ferreira ◽  
M. P. Simões ◽  
L. C. Gazarini
Keyword(s):  
Salt Marsh ◽  
Primary Production ◽  
Nutrient Content ◽  
Southern Portugal ◽  
Atriplex Portulacoides ◽  
Salt Marsh Species

scholarly journals Climate changes in mangrove forests and salt marshes

2016 ◽  
Vol 64 (spe2) ◽  
pp. 37-52 ◽  
Author(s):  
Yara Schaeffer-Novelli ◽  
Eduardo Juan Soriano-Sierra ◽  
Claudia Câmara do Vale ◽  
Elaine Bernini ◽  
André Scarlate Rovai ◽  
...  
Keyword(s):  
Salt Marsh ◽  
Early Warning ◽  
Salt Marshes ◽  
Regional Scale ◽  
Level Energy ◽  
Mangrove Forests ◽  
Coastal Zones ◽  
Coastal Habitat ◽  
Ecological Processes ◽  
Salt Marsh Species

Abstract This synthesis is framed within the scope of the Brazilian Benthic Coastal Habitat Monitoring Network (ReBentos WG 4: Mangroves and Salt Marshes), focusing on papers that examine biodiversity-climate interactions as well as human-induced factors including those that decrease systemic resilience. The goal is to assess difficulties related to the detection of climate and early warning signals from monitoring data. We also explored ways to circumvent some of the obstacles identified. Exposure and sensitivity of mangrove and salt marsh species and ecosystems make them extremely vulnerable to environmental impacts and potential indicators of sea level and climate-driven environmental change. However, the interpretation of shifts in mangroves and salt marsh species and systemic attributes must be scrutinized considering local and setting-level energy signature changes; including disturbance regime and local stressors, since these vary widely on a regional scale. The potential for adaptation and survival in response to climate change depends, in addition to the inherent properties of species, on contextual processes at the local, landscape, and regional levels that support resilience. Regardless of stressor type, because of the convergence of social and ecological processes, coastal zones should be targeted for anticipatory action to reduce risks and to integrate these ecosystems into adaptation strategies. Management must be grounded on proactive mitigation and collaborative action based on long-term ecosystem-based studies and well-designed monitoring programs that can 1) provide real-time early warning and 2) close the gap between simple correlations that provide weak inferences and process-based approaches that can yield increasingly reliable attribution and improved levels of anticipation.

Growth and interactions of salt-marsh species under different flooding regimes

1987 ◽  
pp. 236-259 ◽  
Author(s):  
A. M. Groenendijk ◽  
J. G. J. Spieksma ◽  
M. A. Vink-Lievaart
Keyword(s):  
Salt Marsh ◽  
Salt Marsh Species

The Effects of Oil Pollution on Interacting Salt Marsh Species

1987 ◽  
pp. 225-228 ◽  
Author(s):  
M. Scholten ◽  
P. Leendertse ◽  
P. A. Blaauw
Keyword(s):  
Salt Marsh ◽  
Oil Pollution ◽  
Salt Marsh Species

THE VEGETATIVE ANATOMY OF JAUMEA CARNOSA (LESS.) GRAY (ASTERACEAE), A SALT MARSH SPECIES

1981 ◽  
Vol 68 (3) ◽  
pp. 312-319 ◽  
Author(s):  
Lucy St. Omer ◽  
Maynard F. Moseley
Keyword(s):  
Salt Marsh ◽  
Vegetative Anatomy ◽  
Salt Marsh Species

Vegetation patterns in James Bay coastal marshes. III. Salinity and elevation as factors influencing plant zonations

1989 ◽  
Vol 67 (10) ◽  
pp. 2967-2974 ◽  
Author(s):  
J. C. Earle ◽  
K. A. Kershaw
Keyword(s):  
Salt Marsh ◽  
Salinity Gradient ◽  
Detrended Correspondence Analysis ◽  
Distribution Patterns ◽  
Environmental Data ◽  
Plant Distribution ◽  
Coastal Marsh ◽  
James Bay ◽  
Factors Influencing ◽  
Community Types

Plant zonations and selected environmental variables were studied in a subarctic coastal marsh at Ekwan Point, James Bay, Ont. Eight distinct community types were identified using two-way indicator species analysis classification (TWINSPAN). These were interpreted as a primary successional sequence. The eight communities were found to conform closely to the classical marsh zonations based on elevation and tidal influence: (1) lower salt marsh, (2) middle salt marsh, (3) upper salt marsh, (4) saline meadow, (5) freshwater meadow, and (6) freshwater fen. Environmental data collected along the vegetation transects indicated that changes in elevation and soil-water salinity probably influence species distributions. A species ordination using detrended correspondence analysis (DECORANA) revealed several trends in plant distribution patterns. Consideration of the environmental affinities of species separated along three ordination axes suggested that salinity and elevation, water content, and soil texture were probably important factors influencing successional processes in the marsh during at least the last century. An inverse salinity gradient, which has been reported at many sites along the west coast of Hudson and James bays, was not found at Ekwan Point.

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