Historical Coastal Evolution and Dune Vegetation in Isla Salamanca National Park, Colombia

Gómez, Juan Felipe Garcés; Byrne, Mary-Louise; Hamilton, James P.; Isla, Federico Ignacio

doi:10.2112/jcoastres-d-15-00189.1

Cited by 8 publications

(10 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Paleolimnological studies, thus, confirm that the influx of marine and fresh waters, along with their sedimentological loads is essential for the function of the lagoon, and that they must be considered in terms of hydrologic boundaries. Therefore, based on past environmental reconstructions, it seems necessary to define the ecological unit including the upper basin of the Magdalena River (this river collects particles, including heavy metals and other pollutants, from the entire country and brings important sediment loads into the CGSM [26,36,37]) and the marsh complex; the littoral part of Caribbean, particularly the sand barrier [38], where dynamic sedimentological and erosive processes have been taking place, and the tributaries coming from the western slope of the Sierra Nevada de Santa Marta.…”

Section: Establishing the Contextmentioning

confidence: 99%

Paleoenvironmental Reconstructions Improve Ecosystem Services Risk Assessment: Case Studies from Two Coastal Lagoons in South America

Vélez

Conde

Lozoya

et al. 2018

Water

View full text Add to dashboard Cite

Paleoenvironmental reconstructions are increasingly being used in conservation biology, ecosystem management, and evaluations of ecosystem services (ES), but their potential to contribute to the ES risk assessment process has not been explored. We propose that the long-term history of the ecosystem provides valuable information that augments and strengthens an ES risk assessment and that it should be considered routinely when undertaking risk assessments. We adjusted a standard ecosystem-based risk management (EBRM) protocol to include paleoenvironmental data, and tested the modified approach on two coastal lagoons in South America. Paleolimnological reconstructions in both lagoons indicate that salinity and nutrients (in Laguna de Rocha), and salinity (in Ciénaga Grande de Santa Marta), as controlled by hydrologic connectivity with the ocean and freshwater tributaries, have been the key variables behind ecosystem’s function. This understanding, applied to inform various components and steps in the EBRM protocol, suggests that the maintenance of hydrological connections should be a management priority to minimize risk to ES. This work illustrates the utility of including paleoenvironmental data in an EBRM context and highlights the need for a more holistic approach to risk management by incorporating the long-term history of ecosystem function.

show abstract

Section: Establishing the Contextmentioning

confidence: 99%

Paleoenvironmental Reconstructions Improve Ecosystem Services Risk Assessment: Case Studies from Two Coastal Lagoons in South America

Vélez

Conde

Lozoya

et al. 2018

Water

View full text Add to dashboard Cite

show abstract

“…De hecho, según Williams (2007), la zona frontal de las dunas se estabiliza con la presencia de especies rizomatosas y de porte bajo (e.g. S. virginicus, C. rosea, I. pes-caprae, S. portulacastrum, T. gnaphalodes y C. uvifera) características predominantes en las especies del grupo A. Para el caso colombiano, esto se confirma para S. virginicus que se registra sobre la berma de las playas del Parque Vía Isla de Salamanca junto a Melochia tomentosa L., que no pudo ser evaluada por falta de información sobre su biología (Gómez et al 2017) (Anexo 1). Para las especies leñosas de hábito arbóreo y arbustivo que componen principalmente el grupo B, Williams (2007) las ubica en la parte trasera de las dunas y la zona de transición con otros ecosistemas en donde las condiciones ambientales suelen ser más estables, registrando a las especies evaluadas C. erectus, C. icaco, C. punctatus y S. maritima.…”

Section: Discussionunclassified

“…La necesidad de explorar la diversidad y funcionalidad de la vegetación costera del país se evidencia en la falta de información sobre las especies, la carencia de inventarios actualizados y el hallazgo de algunas publicaciones y tesis aún sin publicar (González 2008, Bernal et al 2014, Gómez et al 2017. Por ello, un total de 36 de las especies se excluyeron del análisis por falta de información sobre su halofitismo y dos más por ausencia de datos sobre el tipo de dispersión, presencia de aerénquima y reproducción vegetativa (Anexo 1).…”

Section: Discussionunclassified

Identificación y priorización de especies vegetales nativas para la restauración de playas y dunas erosionadas en Colombia

Dussan-Arquez

Rodríguez-Rodríguez

2022

Caldasia

View full text Add to dashboard Cite

En Colombia las playas y dunas registran problemas de erosión y requieren medidas de restauración. Algunas alternativas plantean incorporar vegetación como mecanismo para estabilizar la arena y mitigar la problemática; sin embargo, no hay lineamientos que permitan avanzar en su uso. Con el objetivo de proveer insumos para desarrollar estas estrategias, se realizó una evaluación de plantas nativas potenciales para la restauración de playas y dunas, analizando sus rasgos de historia de vida. Para ello, mediante revisión de información secundaria, se evaluaron 25 especies nativas a partir de once rasgos, expresados en 25 estados, a los que se les asignó un puntaje de acuerdo con su rendimiento frente a los retos ecológicos a los que se enfrentan. Tras la calificación, seis especies se priorizaron para su investigación y uso en la restauración: Canavalia rosea, Ipomoea pes-caprae, Sesuvium portulacastrum, Batis maritima, Sporobolus virginicus y Spartina spartinae; otras ocho especies se identificaron con potencial. Esta investigación brinda insumos para el diseño de comunidades con mayores probabilidades de éxito en programas de restauración de zonas afectadas por erosión costera en Colombia y abre un abanico de necesidades de investigación en este campo.

show abstract

“…Moreover, a highway built next to the coastline in the 1950s to connect the cities of Barranquilla and Santa Marta formed a causeway for the otherwise free interchange of water between ocean and lagoons, producing accelerated degradation and mortality of mangrove forest due to hypersalinization [23]. The conditions described above have favored a transition of the landscape from fluvial to littoral-dominated process, portrayed by a palimpsest of fluvial and marine landforms such as channels, lagoons, oxbow lakes, salt plains, beaches, and dunes shaped by the predominant northeasterly trade winds [24] (Figure 2). Following Oertel [25], the landforms required to make up a barrier island system are present in the study area (i.e., mainland, backbarrier lagoon, barrier island, barrier platform, shoreface, inlets and inlet deltas).…”

Section: Study Sitementioning

confidence: 99%

Vertical Land Motion as a Driver of Coastline Changes on a Deltaic System in the Colombian Caribbean

et al. 2021

View full text Add to dashboard Cite

To face and properly mitigate coastal changes at a local level, it is necessary to recognize and characterize the specific processes affecting a coastline. Some of these processes are local (e.g., sediment starvation), while others are regional (e.g., relative sea-level change) or global (e.g., eustatic sea-level rise). Long tide gauge records help establish sea-level trends for a region that accounts for global (eustatic, steric) and regional (isostatic) sea-level changes. Local sea-level changes are also the product of vertical land motion (VLM), varying depending on tectonic, sedimentological, and anthropogenic factors. We investigate the role of coastal land subsidence in the present-day dynamics of an abandoned delta in the Colombian Caribbean. Satellite images and synthetic aperture radar acquisitions are used to assess decadal-scale coastline changes and subsidence rates for the period 2007–2021. We found that subsidence rates are highly variable alongshore. Local subsidence rates of up to −1.0 cm/yr correspond with an area of erosion rates of up to −15 m/yr, but coastal erosion also occurs in sectors where subsidence was not detected. The results highlight that local coastline changes are influenced by multiple, interacting drivers, including sand supply, coastline orientation and engineering structures, and that subsidence alone does not explain the high rates of coastal erosion along the study area. By the end of the century, ongoing coastal erosion rates of up to −25 m/yr, annual rates of subsidence of about −1 cm/yr, and current trends of global sea-level rise are expected to increase flooding levels and jeopardize the existence of the deltaic barrier island.

show abstract

Historical Coastal Evolution and Dune Vegetation in Isla Salamanca National Park, Colombia

Cited by 8 publications

References 22 publications

Paleoenvironmental Reconstructions Improve Ecosystem Services Risk Assessment: Case Studies from Two Coastal Lagoons in South America

Paleoenvironmental Reconstructions Improve Ecosystem Services Risk Assessment: Case Studies from Two Coastal Lagoons in South America

Identificación y priorización de especies vegetales nativas para la restauración de playas y dunas erosionadas en Colombia

Vertical Land Motion as a Driver of Coastline Changes on a Deltaic System in the Colombian Caribbean

Contact Info

Product

Resources

About