River-Island Morphological Response to Basin Land-Use Change within the Jaguaribe River Estuary, NE Brazil

Godoy, Mario Duarte Pinto; Lacerda, Luiz Drude de

doi:10.2112/jcoastres-d-13-00059.1

Cited by 24 publications

(12 citation statements)

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“…Landward migration and change in area covered seems to be the major response of mangrove ecosystems to climate change, and depends on a number of other factors determining the environmental setting, including rainfall and temperature variability (Woodroffe 1992, Esmali-Andargoli et al 2009, Godoy and Lacerda 2014. Geomorphology of the coastal plain and sedimentation rates keeping pace with the rate of sea-level rise are key parameters controlling the magnitude of landward migration.…”

Section: Discussionmentioning

confidence: 99%

“…Direct human drivers that affect the sediment budget of mangroves and thus the rise or fall of the mangrove substrate level (e.g. land-use changes, dams, pumping of groundwater, petroleum and gas exploration in deltas, aquaculture) will also influence mangrove response to climate changes, since they result in increasing surface and belowground water salinity, the hydrodynamics of river basins, the amount of sediment reaching the coast, and therefore the erosion-sedimentation equilibrium of the coastline; as well as the mobilization of nutrients and pollutants in estuaries (Scavia et al 2002, Godoy and Lacerda 2014. In summary, IMPACTS OF CLIMATE CHANGE ON MANGROVES worldwide, the final impact on mangroves varies according to location, and results from a complex interaction between rising sea level and changes in the watershed, including the decrease of the continental runoff due to altered rainfall regime (Dai et al 2009).…”

Section: Mario Dp Godoy and Luiz D De Lacerdamentioning

confidence: 99%

“…1). The increased rate of sedimentation in the estuary caused by landuse drivers is aggravated by the decrease in river flow caused by damming but also by the decrease in rainfall over the basin caused by global climate change (Godoy and Lacerda 2014). Furthermore, the residence time of water and materials in the estuary is increasing due to the increasing oceanic forcing in the continental shelf, because of excess heat accumulating in the South Atlantic due to global warming .…”

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Mangroves Response to Climate Change: A Review of Recent Findings on Mangrove Extension and Distribution

Godoy

Lacerda

2015

An. Acad. Bras. Ciênc.

123

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Mangroves function as a natural coastline protection for erosion and inundation, providing important environmental services. Due to their geographical distribution at the continent-ocean interface, the mangrove habitat may suffer heavy impacts from global climate change, maximized by local human activities occurring in a given coastal region. This review analyzed the literature published over the last 25 years, on the documented response of mangroves to environmental change caused by global climate change, taking into consideration 104 case studies and predictive modeling, worldwide. Most studies appeared after the year 2000, as a response to the 1997 IPCC report. Although many reports showed that the world's mangrove area is decreasing due to direct anthropogenic pressure, several others, however, showed that in a variety of habitats mangroves are expanding as a response to global climate change. Worldwide, pole ward migration is extending the latitudinal limits of mangroves due to warmer winters and decreasing the frequency of extreme low temperatures, whereas in low-lying coastal plains, mangroves are migrating landward due to sea level rise, as demonstrated for the NE Brazilian coast. Taking into consideration climate change alone, mangroves in most areas will display a positive response. In some areas however, such as low-lying oceanic islands, such as in the Pacific and the Caribbean, and constrained coastlines, such as the SE Brazilian coast, mangroves will most probably not survive.

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Section: Discussionmentioning

confidence: 99%

Section: Mario Dp Godoy and Luiz D De Lacerdamentioning

confidence: 99%

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Mangroves Response to Climate Change: A Review of Recent Findings on Mangrove Extension and Distribution

Godoy

Lacerda

2015

An. Acad. Bras. Ciênc.

123

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“…Nessa área existe maior concentração de viveiros de camarão, o que pode favorecer o aporte de sedimentos finos para este setor do estuários. Godoy & Lacerda (2013) observaram esse aumento na taxa de sedimentação no estuário do Rio Jaguaribe associado ao maior aporte de sedimentos no momento de despesca de viveiros. Miola (2013), a partir da análise de testemunhos em áreas adjacentes aos viveiros no estuário do Coreaú, conseguiu de- tectar alternâncias rápidas entre frações arenosas e lamosas no topo, o que atribuiu as possíveis interferências de viveiros.…”

Section: Resultados E Discussõesunclassified

Caracterização Sedimentar Do Canal Do Estuário Do Rio Coreaú, Estado Do Ceará, Brasil

Colares¹,

Pinheiro

Menezes

et al. 2016

ACMAR

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O objetivo deste trabalho foi caracterizar a sedimentação longitudinal do estuário do Rio Coreaú, utilizando-se para isso metodologia cruzada de geoprocessamento e elaboração do Diagrama de Pejrup, para inferir o regime hidrodinâmico e sua repercussão na distribuição das facies sedimentares. Ficou evidente a ocorrência de um alto nível de hidrodinâmica devida à presença de sedimentos mais grossos em sua foz, e de moderado e alto níveis ao longo do curso do rio, dependendo de uma combinação entre variação sedimentar e seu fluxo. Apresentou um padrão sedimentológico de estuário misto, nos quais os processos sedimentares na desembocadura são governados predominantemente pelas ondas e no interior do estuário pelas marés e ações antropogênicas. A sedimentação de origem marinha foi verificada a uma distância de 28 km da foz. O Diagrama de Pejrup demonstrou ser uma boa ferramenta de análise da sedimentação para estuários tropicais com influência da semi-aridez.

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“…Damming of rivers has resulted in a regionwide decrease in sediment transport to the coast and has caused erosion of coastal forests, in particular along arid and semi-arid littorals. The extension of salt intrusion has expanded the saline influence upriver, triggering mangrove migration inland, and partially counterbalancing, in the long term, the destruction of coastal fringe forests (Godoy & Lacerda, 2014;Lacerda, Menezes, & Molisani, 2007).…”

Section: Large-scale Agriculturementioning

confidence: 99%

Neotropical mangroves: Conservation and sustainable use in a scenario of global climate change

Lacerda

Borges

Ferreira

2019

Aquatic Conservation

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This study assesses the evolution of major anthropogenic drivers of environmental impacts on Neotropical mangroves, the changes in the environmental pressures acting upon them, and the respective societal responses during the past 40 years. It reviews the impacts of new drivers, in particular those resulting from global climate change and the expansion in aquaculture and the effectiveness of local societal responses aimed at addressing them. Adaptation and mitigation actions are proposed to cope with the impacts and their socio‐economic consequences for Latin America and Caribbean mangroves. By comparing the situation in Latin America and the Caribbean with other regions, the knowledge gaps and priority research needs are discussed to support delineating a preliminary unifying framework to address the environmental pressures affecting mangroves. This scenario necessarily includes the interaction of climate change with human interventions and their effects on ecosystem goods and services, as well as their respective adaptation and management options. Results show that drivers of environmental impacts have changed in the past 40 years, reducing the effectiveness of some important societal responses towards conservation and sustainable management with a great potential to increase rates of mangrove deforestation and conversion to human uses. Although efforts in conservation and restoration have contributed to decreasing pressure on these ecosystems, the coupling of old drivers, such as damming, with climate change, and the appearance of new drivers in the region, such as shrimp aquaculture, may eclipse the gains made through these conservation efforts. Despite the negative trend, we discuss some successful efforts to curb negative impacts of human activities on mangroves. We also recommend regional assessments based on primary sources in the representative mangrove‐bearing countries throughout the continent to allow the upscaling of their experiences towards a regional response to the challenges facing Neotropical mangrove conservation and sustainable use.

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River-Island Morphological Response to Basin Land-Use Change within the Jaguaribe River Estuary, NE Brazil

Abstract: BioOne Complete (complete.BioOne.org) is a full-text database of 200 subscribed and open-access titles in the biological, ecological, and environmental sciences published by nonprofit societies, associations, museums, institutions, and presses.

Cited by 24 publications

References 14 publications

Mangroves Response to Climate Change: A Review of Recent Findings on Mangrove Extension and Distribution

Mangroves Response to Climate Change: A Review of Recent Findings on Mangrove Extension and Distribution

Caracterização Sedimentar Do Canal Do Estuário Do Rio Coreaú, Estado Do Ceará, Brasil

Neotropical mangroves: Conservation and sustainable use in a scenario of global climate change

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