Mangrove sediments and geomorphology

Woodroffe, Colin D.

doi:10.1029/ce041p0007

Cited by 278 publications

(215 citation statements)

References 66 publications

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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%

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

Godoy

Lacerda

2015

An. Acad. Bras. Ciênc.

119

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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%

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

Godoy

Lacerda

2015

An. Acad. Bras. Ciênc.

119

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“…Management actions to accommodate this vertical displacement could include modification of river discharge controls to increase sediment supply and facilitate substrate accumulation. While mangroves can migrate upslope, they may also expand seaward if sedimentation is sufficient (Woodroffe 1992). Mangrove responses will also depend on the forest type, environmental setting, and supply of freshwater and sediment.…”

Section: Coastal Wetlandsmentioning

confidence: 99%

Climate change impacts on U.S. Coastal and Marine Ecosystems

et al. 2002

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Increases in concentrations of greenhouse gases projected for the 21st century are expected to lead to increased mean global air and ocean temperatures. The National Assessment of Potential Consequences of Climate Variability and Change (NAST 2001) was based on a series of regional and sector assessments. This paper is a summary of the coastal and marine resources sector review of potential impacts on shorelines, estuaries, coastal wetlands, coral reefs, and ocean margin ecosystems. The assessment considered the impacts of several key drivers of climate change: sea level change; alterations in precipitation patterns and subsequent delivery of freshwater, nutrients, and sediment; increased ocean temperature; alterations in circulation patterns; changes in frequency and intensity of coastal storms; and increased levels of atmospheric CO •. Increasing rates of sea-level rise and intensity and frequency of coastal storms and hurricanes over the next decades will increase threats to shorelines, wetlands, and coastal development. Estuarine productivity will change in response to alteration in the timing and amount of freshwater, nutrients, and sediment delivery. Higher water temperatures and changes in freshwater delivery will alter estuarine stratification, residence time, and eutrophication. Increased ocean temperatures are expected to increase coral bleaching and higher CO. levels may reduce coral calcification, making it more difficult for corals to recover from other disturbances, and inhibiting poleward shifts. Ocean warming is expected to cause poleward shifts in the ranges of many other organisms, including commercial species, and these shifts may have secondary effects on their predators and prey. Although these potential impacts of climate change and variability will vary from system to system, it is important to recognize that they will be superimposed

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“…1). These mangroves exist within a river-dominated (Woodroffe 1992), deltaic environment consisting of *110 depositional lobes greater than 500 ha, possessing the low slopes and wide inlets that are characteristic of low wave and high tidal energy environments.…”

Section: Mangroves In the Gulf Of Papua New Guineamentioning

confidence: 99%

Recent Change in the Extent of Mangroves in the Northern Gulf of Papua, Papua New Guinea

Shearman

2010

AMBIO

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Existing at the interface of land and sea, in regions of low topographic relief, mangroves are likely to be some of the first ecosystems that undergo spatial modification due to sea-level rise. The mangrove ecosystems of the Gulf of Papua New Guinea are some of the largest and most pristine in the Asia-Pacific region; they have not been subject to clearance for crustacean farming nor suffered from land reclamation projects. This article establishes through analysis of a time series of aerial photography and satellite imagery from the period 1973-2007, that there have been substantial changes in the distribution of mangroves in this region. These changes include the seaward progradation of the Purari Delta and the regression of the Kikori Delta by an average of 43 m year -1 at its most seaward point. While these findings are likely to be continuations of long-term trends, it is probable that they can be explained by a variety of interacting factors including climate change, sea-level rise, subsistence in the northern Gulf of Papua and changes in sediment dynamics.

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Mangrove sediments and geomorphology

Cited by 278 publications

References 66 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

Climate change impacts on U.S. Coastal and Marine Ecosystems

Recent Change in the Extent of Mangroves in the Northern Gulf of Papua, Papua New Guinea

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