When the seeds go floating in: A salt marsh invasion

Marbán, Leandro; Zalba, Sergio Martín

doi:10.1016/j.ecss.2019.106442

Cited by 9 publications

(4 citation statements)

References 63 publications

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“…Some examples of thalassochorus non‐native plants include Spartina spp. (Daehler and Strong 1996, Grosholz et al 2018, Borges et al 2000), Salsola soda (Schwindt et al 2018, Marbán and Zalba 2019) and Tamarix spp. (Gaskin and Schaal 2002, Birken and Cooper 2006, Ladenburger et al 2006).…”

Section: Discussionmentioning

confidence: 99%

Diaspore traits specialized to animal adhesion and sea current dispersal are positively associated with the naturalization of European plants across the world

et al. 2022

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Understanding what drives non-native species naturalization (the establishment of a self-sustainable population outside its native range) is a central question in invasion science. Plant capacity for long-distance dispersal (LDD) is likely to influence the spread and naturalization of non-native species differently according to their introduction pathways. These pathways include intentional introductions (for economic use, e.g. for agriculture), unintentional introductions (e.g. seed contaminants), plant dispersal via human infrastructures (e.g. roads) and plant spread from an adjacent region where the species was previously introduced. We tested the relationship between sets of LDD traits (syndromes) of 10 308 European plant species and their global naturalization incidence (i.e. whether a species has become naturalized or not) and extent (i.e. the number of regions where a species has become naturalized) using the most comprehensive database of naturalized plants worldwide (GloNAF). Diaspore traits allowed the identification of four traditional LDD syndromes, namely those with specializations for dispersal by: wind (anemochorous), animal ingestion (endozoochorous), attached to animals (epizoochorous) and sea currents (thalassochorous). These evolutionary specializations have been historically interpreted by biologists even though actual dispersal is not always related to diaspore syndromes. We found that while epizoochorous and thalassochorous traits are positively associated with global plant naturalization incidence, anemochorous and endozoochorous traits show a negative relationship. Species' residence time outside their native range, their economic use and presence of epizoochorous traits (such as hooks, hairs and adhesive substances) are positively associated with global naturalization extent. Furthermore, we found that plant economic use reduces the influence of LDD syndromes on the naturalization incidence of intentionally introduced plants. While the success of non-native plants is influenced by a broad array of species-and context-specific factors, LDD syndromes play an important role in this context depending on the economic use of plants.

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Section: Discussionmentioning

confidence: 99%

Diaspore traits specialized to animal adhesion and sea current dispersal are positively associated with the naturalization of European plants across the world

et al. 2022

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“…En las islas de la Reserva Natural de Usos Múltiples (RNUM) Bahía Blanca, Bahía Falsa y Bahía Verde residen poblaciones de jabalí, liebre europea, chivos y conejos (testimonio de su antigua explotación económica); así como también ganado vacuno, el cual por efecto del pisoteo y sobrepastoreo destruye la vegetación autóctona, fomenta los procesos erosivos y disturba la nidificación de aves playeras y del pastizal (Sotelo & Massola, 2008). Por otro lado, se destaca la expansión de la ostra del Pacífico (Crassostrea gigas) en todo el estuario (Fiori et al, 2016), la planta Salsola soda (Amaranthaceae) en el sitio de nidificación de la gaviota de Olrog (Marbán & Zalba, 2019) y tamariscos (Tamarix sp.) en la costa (Natale et al, 2018).…”

Section: Elaboración Propiaunclassified

“…Por otro, posee áreas fuertemente intervenidas, donde conviven múltiples usos del suelo (principalmente agrícolo-ganadero e industrial) y cuenta con el mayor sistema portuario de aguas profundas del país. Numerosas investigaciones han abordado las distintas problemáticas socio-ambientales derivadas de esta situación, tales como la presencia de metales pesados (Spetter, Buzzi, Fernández, Cuadrado & Marcovecchio, 2015;Marcovecchio, Botté & Fernández Severini, 2016;Serra, Botté, Cuadrado, La Colla & Negrin, 2017;Fernández Severini, Carbone, Villagrán & Marcovechio, 2018;Villagran et al, 2019) y de enteropatógenos (Baldini, Cubitto & Chiarello, 2010;Streitenberger & Baldini, 2016), la introducción de especies exóticas invasoras (Dos Santos & Fiori, 2010;Fiori, Pratolongo, Zalba, Carbone & Bravo, 2016;Natale, Reinoso, Andreo & Zalba, 2018;Marbán & Zalba, 2019), los efectos de la actividad humana y contaminación ambiental en la fauna y flora nativa (Hempel, Botté, Negrin, Chiarello & Marcovecchio, 2008;La Sala, Petracci, Smits, Botté & Furness, 2011;Simonetti, Fiori, Botté & Marcovecchio, 2013;Spetter et al, 2015b;Berasategui et al, 2018), los conflictos por el acceso y utilización de los recursos costero-marinos (Heredia Chaz, 2014;Irisarri, Noceti & Carbone, 2016;Noceti, Irisarri, Barbero & Cattaneo, 2016;Ibañez Martín, Rojas & London, 2016;Noceti, 2017), la gestión de las áreas naturales protegidas (Speake & Carbone, 2017;Speake & Carbone, 2019), entre otros. Sin embargo, ninguno realiza un análisis interdisciplinario exhaustivo que permita conectar las dimensiones ecológica y socio-económica.…”

Section: Introductionunclassified

Análisis del sistema socio-ecológico del estuario Bahía Blanca (Argentina) y su impacto en los servicios ecosistémicos y el bienestar humano

Speake

Carbone

Spetter

2020

Ingeo

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Los humedales costeros conforman uno de los ecosistemas más productivos del mundo, brindando diversos servicios ambientales tales como la regulación hídrica, climática, provisión de alimentos, recreación y disfrute espiritual, entre muchos otros. No obstante ello, los rápidos procesos de modificación antropogénica que enfrentan en la actualidad han logrado alterar dramáticamente su biocapacidad y resiliencia. La disponibilidad de información completa y actualizada resulta de vital importancia para la planificación y la gestión estratégica de las áreas litorales. Por ello, en el presente estudio se analiza el sistema socio-ecológico del estuario de Bahía Blanca (SSE-BB) bajo un enfoque integral. El método empleado se basó en el marco conceptual de la Evaluación de Ecosistemas del Milenio (EM), diseñado por la Organización de Naciones Unidas. Los resultados obtenidos permiten afirmar que las presiones más importantes que recibe el SSE-BB son la concentración de infraestructura en el borde costero, el dragado y relleno artificial de los humedales, la contaminación ambiental y la invasión de especies exóticas. Las consecuencias directas sobre el bienestar de la población local están signadas por la disminución de los alimentos provenientes de la pesca, la pérdida de valores asociados a la herencia cultural y de recursos turísticos de primer orden, problemas de salud derivados de la calidad del aire y conflictos entre usuarios de recursos, como es el caso de los pescadores artesanales y las empresas industriales. Se espera que el diagnóstico operativo realizado facilite la adecuada comprensión de los problemas actuales del área de estudio y fomente la búsqueda de soluciones integrales.

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“…Buoyancy is a key trait that enables many hydrochorous propagules to travel vast distances before washing into tidally-accessible habitats (Guja et al 2010; Nilsson et al 2010). However, sea-dispersed propagules must also remain viable despite exposure to seawater, which often induces mortality in seeds (Guja et al 2010; González 2019; Marbán & Zalba 2019). The seeds of halophytes (saline-tolerant plants) frequently have dormancy mechanisms that prevent the seeds from germinating during conditions unfavourable to seedling survival (Gul et al 2013;González 2019), such as a thick or impermeable seed coat (Guja et al 2010;González 2019).…”

Section: Introductionmentioning

confidence: 99%

Germination Response of the Freshwater Invasive Iris pseudacorus to Brackish and Marine Salinity as Well as Implications for Coastal Invasion

Thomson,

Shackelford,

Gilbert

et al. 2024

Wetlands

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Conventionally considered a freshwater species, evidence indicates that yellow ag iris (Iris pseudacorus) tolerates saline conditions. As a water-dispersed species, clarifying how I. pseudacorus seeds respond to seawater immersion is critical to understanding marine dispersal and invasion risk for coastal habitat.Using seeds from marine and freshwater I. pseudacorus populations, we assessed how the duration of immersion (15, 30, 60, and 90 days) in varying salinities (0, 13-15, 33-35 practical salinity units) affected the germination response of seeds, and whether immersion in freshwater following saline exposure impacted germination success or seed viability. Freshwater-produced seeds consistently outperformed those produced by plants persisting in marine conditions. Neither salinity concentration nor duration of immersion had a statistically signi cant impact on germination success. Exposure to saline conditions fully inhibited germination unless seeds received a freshwater recovery. Seed coat thickness was statistically signi cantly greater among the freshwater population, but there was no discernible difference in mean seed weight. Seeds from both populations remained viable following prolonged exposure to salinity. We posit that observed differences in germination between the two populations may arise from dormancy mechanisms rather than seed tness. Overall, our results suggest that I. pseudacorus has the capacity to disperse vast distances through the marine environment, potentially habitat-hopping to reach ecosystems characterized by freshwater input, such as estuaries or saltmarshes. Management efforts should target early detection of the species in freshwater-enriched coastal habitats and react rapidly to remove individuals before they become established.

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When the seeds go floating in: A salt marsh invasion

Cited by 9 publications

References 63 publications

Diaspore traits specialized to animal adhesion and sea current dispersal are positively associated with the naturalization of European plants across the world

Diaspore traits specialized to animal adhesion and sea current dispersal are positively associated with the naturalization of European plants across the world

Análisis del sistema socio-ecológico del estuario Bahía Blanca (Argentina) y su impacto en los servicios ecosistémicos y el bienestar humano

Germination Response of the Freshwater Invasive Iris pseudacorus to Brackish and Marine Salinity as Well as Implications for Coastal Invasion

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