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dc.contributor.author
Marbán, Leandro Martín
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dc.contributor.author
Zalba, Sergio Martín
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dc.date.available
2020-09-04T00:15:36Z
dc.date.issued
2019-12
dc.identifier.citation
Marbán, Leandro Martín; Zalba, Sergio Martín; When the seeds go floating in: A salt marsh invasion; Elsevier; Estuarine, Coastal and Shelf Science; 231; 12-2019; 106442
dc.identifier.issn
0272-7714
dc.identifier.uri
http://hdl.handle.net/11336/113200
dc.description.abstract
Biological invasions are one of the most important causes of global biodiversity loss. The human-mediated movement of species has increased significantly withglobalization and the expansion of international trade. Seaports have thus become the entry points for a variety of organisms transported with cargo, ballast water or as biofouling, and, therefore, coastal and marine habitats around the world have become especially vulnerable to this problem. Salsola soda L. (Amaranthaceae) is an annual halophytic plant, native to the Old World. Its presence beyond its native range was recorded for the first time in the mid-twentieth century in two estuarial habitats, on the Pacific coast in the United States and on the Atlantic coast of Argentina, becoming invasive at both sites. It grows as dense, practically monotypic populations, just above the high tide line. When S. soda colonizes the elevated zones where some colonial coastal birds nest, it causes them to move to lower adjacent sites, increasing theirexposure to the effect of tides and storms that can result in the loss of nests. To contribute to the understanding of the dynamics of the invasion and its projection, we assessed the production, viability and germination capacity of S. soda seed, analyzed the effects of different salt concentrations on its germination and measured its dispersal capacity by hydrochory. The species produces large quantities of fruit, exceeding 16,000 in larger plants. The percentage of germination is very high for young seed (almost 100% during the first five months after their release), decreasing to less than 10% a year later. The effects of salinity are almost negligible in NaCl solutions of to 300 mM, with a slight decrease in the germination rate at the higher salinities. Fruits can remain floating in seawater for up to a week, retaining a high germination capacity, so marine currents can be highly effective vectors for their dispersal. The biological features of Salsola soda make it a serious threat to the study site, in particular the production of large quantities of seed easily transportable by water and wind and capable of becoming established under typical marine coastal conditions, anticipating a high potential for expansion in this environment and in others nearby, and invading other similar coastal areas worldwide. On the other hand, its annual life cycle and the short survival time of its seeds could be key for the development of control and eradication actions in invaded sites.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
HALOPHYTE
dc.subject
INVASIVE ALIEN SPECIES
dc.subject
COASTAL INVASION
dc.subject
SALSOLA
dc.subject.classification
Conservación de la Biodiversidad
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
When the seeds go floating in: A salt marsh invasion
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-06-22T14:20:08Z
dc.journal.volume
231
dc.journal.pagination
106442
dc.journal.pais
Países Bajos
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dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Marbán, Leandro Martín. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Grupo de Estudios en Conservación y Manejo; Argentina
dc.description.fil
Fil: Zalba, Sergio Martín. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Grupo de Estudios en Conservación y Manejo; Argentina
dc.journal.title
Estuarine, Coastal and Shelf Science
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S0272771419300745
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.ecss.2019.106442
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