Mangrove Forests: One of the World's Threatened Major Tropical Environments

Valiela, Iván; Bowen, Jennifer L.; York, Joanna K.

doi:10.1641/0006-3568(2001)051[0807:mfootw]2.0.co;2

Cited by 1,521 publications

(881 citation statements)

References 33 publications

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“…Based on biodiversity alone, mangrove forests provide at least US $1.6 billion each year in ecosystem services and support of coastal livelihoods worldwide (Polidoro et al 2010). However, by occupying the coastline, which includes areas of high population density, mangroves are under constant pressure from urban and agricultural expansion, diverse industrial activities, hydrological changes of river basins, spills of chemicals and eutrophication, despite its great importance in sustaining the coastal zone (Medina et al 2001, Valiela et al 2001, USGS 2004, Long et al 2014.…”

Section: Mario Dp Godoy and Luiz D De Lacerdamentioning

confidence: 99%

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: Mario Dp Godoy and Luiz D De Lacerdamentioning

confidence: 99%

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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“…There are about 9 orders, 20 families, 27 genera, and roughly 70 species of mangrove plants all over the world, occupying a total estimated area of 137,760 km 2 (Alongi 2002; Giri et al 2011). Mangrove ecosystem is an important part for near-shore exchanges of nutrients and detritus in geomorphology and hydrodynamics (Ewel et al 1998; Valiela et al 2001), provides nursery biotopes for various seabirds and tropical fishes (Kathiresan 2000; Nagelkerken et al 2000), and harbours high diversity of microorganisms (Kathiresan 2000; Shearer et al 2007; Cheng et al 2009; Debbab et al 2013). The mangrove forests also offer different ecological services and economic goods, like timber, fish, shellfish, fuel, and pharmacy material (Ewel et al 1998; Alongi 2002), and improve our understanding to the resilience of ecosystem impacted by global climate change (Alongi 2008).…”

Section: Introductionmentioning

confidence: 99%

Community structure of endophytic fungi of four mangrove species in Southern China

Sun

Chen

et al. 2016

Mycology

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Mangrove forests play an important role in subtropical and tropical coastal ecosystems. Endophytic fungi are widely distributed in various ecosystems and have great contribution to global biodiversity. In order to better understand the effects of mangrove species and tissue types on endophytic fungal community, we investigated cultivable endophytic fungi in leaves and twigs of four mangroves Aegiceras corniculatum, Avicennia marina, Bruguiera gymnorrhiza, and Kandelia candel in Guangxi, China. The four tree species had similar overall colonisation rates of endophytic fungi (24–33%). The colonisation rates of endophytic fungi were higher in twigs (30–58%) than in leaves (6–25%) in the four plant species. A total of 36 endophytic fungal taxa were identified based on morphological characteristics and molecular data, including 35 Ascomycota and 1 Basidiomycota, dominated by Phomopsis, Phyllosticta, Xylaria, Leptosphaerulina, and Pestalotiopsis. The diversity of endophytic fungi was higher in twigs than in leaves in the four plant species. Some endophytic fungi showed host and tissue preference. The endophytic fungal community composition was different among four mangrove species and between leaf and twig tissues.

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“…In addition, C removal from the atmosphere has been estimated at around 1,170 ± 127 g·C·m −2 ·year −1 [13]. These figures acquire relevance in the context of climate change mitigation as C sequestration is emerging as a major strategy to reduce atmospheric C. In spite of the array of ecosystem services provided by mangroves, their high productivity, and their role played in C dynamics at the land-ocean interface [14], large areal losses are presently occurring due to deforestation and land use conversion due to both human and natural drivers [15,16].…”

Section: Introductionmentioning

confidence: 99%

Spatiotemporal Variation in Mangrove Chlorophyll Concentration Using Landsat 8

et al. 2015

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There is a need to develop indicators of mangrove condition using remotely sensed data. However, remote estimation of leaf and canopy biochemical properties and vegetation condition remains challenging. In this paper, we (i) tested the performance of selected hyperspectral and broad band indices to predict chlorophyll concentration (CC) on mangrove leaves and (ii) showed the potential of Landsat 8 for estimation of mangrove CC at the landscape level. Relative leaf CC and leaf spectral response were measured at 12 Elementary Sampling Units (ESU) distributed along the northwest coast of the Yucatan Peninsula, Mexico. Linear regression models and coefficients of determination were computed to measure the association between CC and spectral response. At leaf level, the narrow band indices with the largest correlation with CC were Vogelmann indices and the MTCI (R 2 > 0.5). Indices with spectral bands around the red edge (705-753 nm) were more OPEN ACCESSRemote Sens. 2015, 7 14531 sensitive to mangrove leaf CC. At the ESU level Landsat 8 NDVI green, which uses the green band in its formulation explained most of the variation in CC (R 2 > 0.8). Accuracy assessment between estimated CC and observed CC using the leave-one-out cross-validation (LOOCV) method yielded a root mean squared error (RMSE) = 15 μg·cm −2 , and R 2 = 0.703. CC maps showing the spatiotemporal variation of CC at landscape scale were created using the linear model. Our results indicate that Landsat 8 NDVI green can be employed to estimate CC in large mangrove areas where ground networks cannot be applied, and mapping techniques based on satellite data, are necessary. Furthermore, using upcoming technologies that will include two bands around the red edge such as Sentinel 2 will improve mangrove monitoring at higher spatial and temporal resolutions.

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Mangrove Forests: One of the World's Threatened Major Tropical Environments

Cited by 1,521 publications

References 33 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

Community structure of endophytic fungi of four mangrove species in Southern China

Spatiotemporal Variation in Mangrove Chlorophyll Concentration Using Landsat 8

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